remove duplicate

browser.urlbar.yelp.featureGate FF124
corroborator.enabled removed FF126
2026-06-12 15:40:48 +05:30 · 2024-05-20 14:34:22 -04:00 · 2024-05-20 14:30:27 -04:00 · 2024-05-20 14:23:13 -04:00 · 2024-05-20 14:21:48 -04:00 · 2024-05-20 13:16:43 -04:00
12 changed files with 607 additions and 1056 deletions
@@ -0,0 +1,43 @@
 ---
 name: Something is not working!
 about: Use this form if you have an issue.
 title: ''
 labels: ''
 assignees: yokoffing
 ---
 ## BEFORE YOU BEGIN
 I have attempted the following troubleshooting suggestions:
 - [ ] The issue persists when using Firefox in [Troubleshoot Mode](https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode).
 - [ ] Disabled DNS-level content blocking (AdGuard Home, NextDNS, Control D, RethinkDNS, PiHole, etc), [cleared my DNS cache](https://www.pcmag.com/how-to/how-to-flush-your-dns-cache), and used my ISP's DNS resolver (if applicable).
 - [ ] [Cleared website data](https://support.mozilla.org/en-US/kb/clear-cookies-and-site-data-firefox), restarted Firefox, and my issue persists.
 - [ ] I have created a [new profile](https://support.mozilla.org/en-US/kb/profile-manager-create-remove-switch-firefox-profiles). The issue persists when using the current [user.js](https://github.com/yokoffing/Betterfox/blob/master/user.js) file on GitHub. (Must be in a new profile and a new user.js!)
 ## REPORT
 **Describe the bug**
 *A clear and concise description of what the bug is.*
 **To Reproduce**
 *Steps to reproduce the behavior:*
 ```
 1. Go to '...'
 2. Click on '....'
 3. Scroll down to '....'
 4. See error
 ```
 **Expected behavior**
 *A clear and concise description of what you expected to happen.*
 **Screenshots**
 *If applicable, add screenshots to help explain your problem.*
 **Desktop (please complete the following information):**
 - OS:
 - Browser:
 - Version:
 **Additional context**
 *Add any other context about the problem here.*
@@ -1,105 +0,0 @@
 name: Bug Report
 description: File a bug report
 assignees: yokoffing
 body:
  - type: markdown
    attributes:
      value: |
       Please confirm the issue relates to Betterfox user.js before submitting a report.
        To troubleshoot your installation, try solutions below and test the issue after each step:
        * Launch Firefox in [Troubleshoot Mode](https://support.mozilla.org/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode).
        * Disable DNS-level content blocking (such ad AdGuard Home, NextDNS, Control D, PiHole, etc) and [clear the DNS cache](https://www.pcmag.com/how-to/how-to-flush-your-dns-cache) and use ISP's DNS resolver (if applicable).
        * [Clear website data](https://support.mozilla.org/en-US/kb/clear-cookies-and-site-data-firefox) and restart Firefox.
        * Create a [new clean profile](https://support.mozilla.org/en-US/kb/profile-manager-create-remove-switch-firefox-profiles).
  - type: checkboxes
    attributes:
      label: Prerequisites
      options:
        - label: The issue persists when using Firefox in Troubleshoot Mode.
          required: true
        - label: "The issue persists after I disabled DNS-level content blocking (PiHole, NextDNS, etc.), cleared DNS cache, and tried to use ISP's DNS resolver (if applicable)."
          required: true
        - label: The issue persists after I cleared website data and restarted Firefox.
          required: true
        - label: I have created a new, clean profile. The issue persists after adding the user.js, but it is not reproducible in a new, unedited Firefox profile.
          required: true
  - type: textarea
    attributes:
      label: Bug description
      description: Describe the issue.
      placeholder: A bug causes this and that...
    validations:
      required: true
  - type: textarea
    attributes:
      label: Steps to reproduce
      description: Explain the steps required to reproduce the issue.
      placeholder: |
        1. Go to `...`
        2. Click on `...`
        3. Scroll down to `...`
    validations:
      required: true
  - type: textarea
    attributes:
      label: Expected behavior
      description: What did you expect to happen instead?
      placeholder: Firefox should do [this]. Instead, it did [that].
    validations:
      required: false
  - type: textarea
    attributes:
      label: Screenshots
      description: Add screenshots to help explain your problem (optional).
    validations:
      required: false
  - type: dropdown
    attributes:
      label: Operating System (OS)
      options:
        - Windows (10 or later)
        - macOS (ARM-based device)
        - macOS (Intel-based device)
        - Linux
        - Other
    validations:
      required: true
  - type: dropdown
    attributes:
      label: Browser
      options:
        - Firefox
        - Firefox Beta
        - Firefox Developer Edition
        - Firefox Nightly
        - Firefox ESR
        - Floorp
        - LibreWolf
        - Zen Browser
        - Waterfox
        - Other
    validations:
      required: true
  - type: input
    attributes:
      label: Version
      placeholder: 136 stable
    validations:
      required: false
  - type: textarea
    attributes:
      label: Additional information
      description: Include any other information that may be helpful.
    validations:
      required: false
@@ -3,7 +3,7 @@
 * Fastfox                                                                              *
 * "Non ducor duco"                                                                     *
 * priority: speedy browsing                                                            *
- * version: 137                                                                         *
+ * version: 126                                                                         *
 * url: https://github.com/yokoffing/Betterfox                                          *
 ***************************************************************************************/
@@ -45,8 +45,8 @@
 // to impact page load performance.
 // [EXAMPLE] 100000 = .10s = 100 reflows/second
 // [1] https://searchfox.org/mozilla-central/rev/c1180ea13e73eb985a49b15c0d90e977a1aa919c/modules/libpref/init/StaticPrefList.yaml#1824-1834
-// [2] https://web.archive.org/web/20240115073722/https://dev.opera.com/articles/efficient-javascript/?page=3#reflow
+// [2] https://dev.opera.com/articles/efficient-javascript/?page=3#reflow
-// [3] https://web.archive.org/web/20240115073722/https://dev.opera.com/articles/efficient-javascript/?page=3#smoothspeed
+// [3] https://dev.opera.com/articles/efficient-javascript/?page=3#smoothspeed
 user_pref("content.notify.interval", 100000); // (.10s); default=120000 (.12s)
 // PREF: new tab preload
@@ -98,19 +98,25 @@ user_pref("content.notify.interval", 100000); // (.10s); default=120000 (.12s)
 //user_pref("gfx.webrender.software", true); // Software Webrender uses CPU instead of GPU
    //user_pref("gfx.webrender.software.opengl", true); // LINUX
 // PREF: NVIDIA RTX Video Super Resolution and RTX Video HDR [WINDOWS] [FF125+]
 // Super Resolution activiates on video content 720p or below.
 // [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1823135
 // [2] https://www.reddit.com/r/firefox/comments/17a0noa/nvidia_video_super_resolution_not_working_on/
 // [3] https://blogs.nvidia.com/blog/ai-decoded-rtxvideo-firefox/
 // [4] https://www.mozilla.org/en-US/firefox/126.0/releasenotes/
 //user_pref("gfx.webrender.super-resolution.nvidia", true); // [REMOVED]
 // PREF: GPU-accelerated Canvas2D
-// Uses Accelerated Canvas2D for hardware acceleration of Canvas2D.
+// Use gpu-canvas instead of to skia-canvas.
 // This provides a consistent acceleration architecture across all platforms
 // by utilizing WebGL instead of relying upon Direct2D.
 // [WARNING] May cause issues on some Windows machines using integrated GPUs [2] [3]
 // Add to your overrides if you have a dedicated GPU.
 // [NOTE] Higher values will use more memory.
 // [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1741501
 // [2] https://github.com/yokoffing/Betterfox/issues/153
 // [3] https://github.com/yokoffing/Betterfox/issues/198
-//user_pref("gfx.canvas.accelerated", true); // [DEFAULT FF133+]
+//user_pref("gfx.canvas.accelerated", true); // DEFAULT macOS LINUX [FF110]; not compatible with WINDOWS integrated GPUs
-    //user_pref("gfx.canvas.accelerated.cache-items", 8192); // DEFAULT FF135+; Chrome=4096
+    user_pref("gfx.canvas.accelerated.cache-items", 4096); // default=2048; alt=8192
-    user_pref("gfx.canvas.accelerated.cache-size", 512); // default=256; Chrome=512
+    user_pref("gfx.canvas.accelerated.cache-size", 512); // default=256; alt=1024
    user_pref("gfx.content.skia-font-cache-size", 20); // default=5; Chrome=20
    // [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1239151#c2
@@ -126,6 +132,11 @@ user_pref("content.notify.interval", 100000); // (.10s); default=120000 (.12s)
 //user_pref("media.gpu-process-decoder", true); // DEFAULT WINDOWS
 //user_pref("media.ffmpeg.vaapi.enabled", true); // LINUX
 // PREF: disable AV1 for hardware decodeable videos
 // Firefox sometimes uses AV1 video decoding even to GPUs which do not support it.
 // [1] https://www.reddit.com/r/AV1/comments/s5xyph/youtube_av1_codec_have_worse_quality_than_old_vp9
 //user_pref("media.av1.enabled", false);
 // PREF: hardware and software decoded video overlay [FF116+]
 // [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1829063
 // [2] https://phabricator.services.mozilla.com/D175993
@@ -144,7 +155,7 @@ user_pref("content.notify.interval", 100000); // (.10s); default=120000 (.12s)
 // More efficient to keep the browser cache instead of having to
 // re-download objects for the websites you visit frequently.
 // [1] https://www.janbambas.cz/new-firefox-http-cache-enabled/
-user_pref("browser.cache.disk.enable", false);
+//user_pref("browser.cache.disk.enable", true); // DEFAULT
 // PREF: disk cache size
 // [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=913808,968106,968101
@@ -168,8 +179,7 @@ user_pref("browser.cache.disk.enable", false);
 // [3] https://support.mozilla.org/en-US/questions/1267945
 // [4] https://askubuntu.com/questions/1214862/36-syns-in-a-row-how-to-limit-firefox-connections-to-one-website
 // [5] https://bugzilla.mozilla.org/show_bug.cgi?id=1622859
-// [6] https://soylentnews.org/comments.pl?noupdate=1&sid=40195&page=1&cid=1067867#commentwrap
+//user_pref("network.http.rcwn.enabled", true); // DEFAULT
 //user_pref("network.http.rcwn.enabled", false);
 // PREF: attempt to RCWN only if a resource is smaller than this size
 //user_pref("network.http.rcwn.small_resource_size_kb", 256); // DEFAULT
@@ -210,9 +220,8 @@ user_pref("browser.cache.disk.enable", false);
 //user_pref("browser.cache.disk.max_priority_chunks_memory_usage", 40960); // DEFAULT (40 MB)
 // PREF: how often to validate document in cache
 // [1] https://searchfox.org/mozilla-release/source/modules/libpref/init/StaticPrefList.yaml#1092-1096
 // 0 = once-per-session
 // 1 = each-time
 // 2 = never
 // 3 = when-appropriate/automatically (default)
 //user_pref("browser.cache.check_doc_frequency", 3); // DEFAULT
@@ -231,15 +240,13 @@ user_pref("browser.cache.disk.enable", false);
 // 0 = do not compress (default)
 // 1 = minimal compression
 // 9 = maximal compression
-//user_pref("browser.cache.jsbc_compression_level", 3);
+user_pref("browser.cache.jsbc_compression_level", 3);
 // PREF: strategy to use for when the bytecode should be encoded and saved [TESTING ONLY]
-// -1 makes page load times marginally longer when a page is being loaded for the first time, while
+// -1 makes page load times marginally longer when a page is being loaded for the first time.
-// subsequent reload of websites will be much much faster.
+// Subsequent reload of websites will be much much faster.
 // 0 means that the bytecode is created every 4 page loads [3].
 // [1] https://searchfox.org/mozilla-release/source/modules/libpref/init/StaticPrefList.yaml#3461-3488
 // [2] https://www.reddit.com/r/firefox/comments/12786yv/improving_performance_in_firefox_android_part_ii/
 // [3] https://github.com/zen-browser/desktop/issues/217
 // -1 = saved as soon as the script is seen for the first time, independently of the size or last access time
 // 0 = saved in order to minimize the page-load time (default)
 //user_pref("dom.script_loader.bytecode_cache.enabled", true); // DEFAULT
@@ -254,14 +261,13 @@ user_pref("browser.cache.disk.enable", false);
 // that only contains settings for systems at or below 8GB of system memory [1].
 // Waterfox G6 allows it to go above 8GB machines [3].
 // Value can be up to the max size of an unsigned 64-bit integer.
-// -1 = Automatically decide the maximum memory to use to cache decoded images,
+// -1=Automatically decide the maximum memory to use to cache decoded images,
 // messages, and chrome based on the total amount of RAM
 // For machines with 8GB+ RAM, that equals 32768 kb = 32 MB
 // [1] https://kb.mozillazine.org/Browser.cache.memory.capacity#-1
 // [2] https://searchfox.org/mozilla-central/source/netwerk/cache2/CacheObserver.cpp#94-125
 // [3] https://github.com/WaterfoxCo/Waterfox/commit/3fed16932c80a2f6b37d126fe10aed66c7f1c214
-//user_pref("browser.cache.memory.capacity", 131072); // (128 MB)
+//user_pref("browser.cache.memory.capacity", -1); // DEFAULT; 256000=256 MB; 512000=500 MB; 1048576=1GB, 2097152=2GB
-//user_pref("browser.cache.memory.max_entry_size", 20480); // (20 MB); default=5120 (5 MB)
+//user_pref("browser.cache.memory.max_entry_size", 10240); // (10 MB); default=5120 (5 MB)
 // PREF: amount of Back/Forward cached pages stored in memory for each tab
 // Pages that were recently visited are stored in memory in such a way
@@ -272,7 +278,7 @@ user_pref("browser.cache.disk.enable", false);
 // is no reason for Firefox to keep memory for this.
 // -1=determine automatically (8 pages)
 // [1] https://kb.mozillazine.org/Browser.sessionhistory.max_total_viewers#Possible_values_and_their_effects
-user_pref("browser.sessionhistory.max_total_viewers", 4);
+//user_pref("browser.sessionhistory.max_total_viewers", 4);
 /****************************************************************************
 * SECTION: MEDIA CACHE                                                     *
@@ -285,8 +291,6 @@ user_pref("browser.sessionhistory.max_total_viewers", 4);
 // [1] https://hg.mozilla.org/mozilla-central/file/tip/modules/libpref/init/StaticPrefList.yaml#l9652
 // [2] https://github.com/arkenfox/user.js/pull/941
 user_pref("media.memory_cache_max_size", 65536); // default=8192; AF=65536; alt=131072
 // PREF: media cache combine sizes
 //user_pref("media.memory_caches_combined_limit_kb", 524288); // DEFAULT; alt=1048576
 //user_pref("media.memory_caches_combined_limit_pc_sysmem", 5); // DEFAULT; alt=10; the percentage of system memory that Firefox can use for media caches
@@ -324,14 +328,13 @@ user_pref("image.mem.decode_bytes_at_a_time", 32768); // default=16384; alt=6553
 ****************************************************************************/
 // PREF: use bigger packets
-// [WARNING] Cannot open HTML files bigger than 4MB if value is too large [2].
+// [WARNING] Cannot open HTML files bigger than 4MB if changed [2].
 // Reduce Firefox's CPU usage by requiring fewer application-to-driver data transfers.
 // However, it does not affect the actual packet sizes transmitted over the network.
 // [1] https://www.mail-archive.com/support-seamonkey@lists.mozilla.org/msg74561.html
 // [2] https://github.com/yokoffing/Betterfox/issues/279
-// [3] https://ra1ahq.blog/en/optimizaciya-proizvoditelnosti-mozilla-firefox
+//user_pref("network.buffer.cache.size", 262144); // 256 kb; default=32768 (32 kb)
-//user_pref("network.buffer.cache.size", 65535); // default=32768 (32 kb); 262144 too large
+//user_pref("network.buffer.cache.count", 128); // default=24
 //user_pref("network.buffer.cache.count", 48); // default=24; 128 too large
 // PREF: increase the absolute number of HTTP connections
 // [1] https://kb.mozillazine.org/Network.http.max-connections
@@ -404,28 +407,20 @@ user_pref("network.ssl_tokens_cache_capacity", 10240); // default=2048; more TLS
 // [3] https://searchfox.org/mozilla-central/rev/028c68d5f32df54bca4cf96376f79e48dfafdf08/modules/libpref/init/all.js#1280-1282
 // [4] https://www.keycdn.com/blog/resource-hints#prefetch
 // [5] https://3perf.com/blog/link-rels/#prefetch
-user_pref("network.http.speculative-parallel-limit", 0);
+//user_pref("network.http.speculative-parallel-limit", 20); // DEFAULT (FF127+?)
-// PREF: DNS prefetching for HTMLLinkElement <link rel="dns-prefetch">
+// PREF: DNS prefetching <link rel="dns-prefetch">
 // Used for cross-origin connections to provide small performance improvements.
-// You can enable rel=dns-prefetch for the HTTPS document without prefetching
+// Disable DNS prefetching to prevent Firefox from proactively resolving
-// DNS for anchors, whereas the latter makes more specualtive requests [5].
+// hostnames for other domains linked on a page. This may eliminate
 // unnecessary DNS lookups, but can increase latency when following external links.
 // [1] https://bitsup.blogspot.com/2008/11/dns-prefetching-for-firefox.html
 // [2] https://css-tricks.com/prefetching-preloading-prebrowsing/#dns-prefetching
 // [3] https://www.keycdn.com/blog/resource-hints#2-dns-prefetching
 // [4] http://www.mecs-press.org/ijieeb/ijieeb-v7-n5/IJIEEB-V7-N5-2.pdf
-// [5] https://bugzilla.mozilla.org/show_bug.cgi?id=1596935#c28
+// [5] https://bugzilla.mozilla.org/show_bug.cgi?id=1596935
 user_pref("network.dns.disablePrefetch", true);
-    user_pref("network.dns.disablePrefetchFromHTTPS", true); // [FF127+ false]
+user_pref("network.dns.disablePrefetchFromHTTPS", true); // (FF127+ false)
 // PREF: DNS prefetch for HTMLAnchorElement (speculative DNS)
 // Disable speculative DNS calls to prevent Firefox from resolving
 // hostnames for other domains linked on a page. This may eliminate
 // unnecessary DNS lookups, but can increase latency when following external links.
 // [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1596935#c28
 // [2] https://github.com/arkenfox/user.js/issues/1870#issuecomment-2220773972
 //user_pref("dom.prefetch_dns_for_anchor_http_document", false); // [FF128+]
 //user_pref("dom.prefetch_dns_for_anchor_https_document", false); // DEFAULT [FF128+]
 // PREF: enable <link rel="preconnect"> tag and Link: rel=preconnect response header handling
 //user_pref("network.preconnect", true); // DEFAULT
@@ -437,11 +432,31 @@ user_pref("network.dns.disablePrefetch", true);
 // [NOTE] Firefox will perform DNS lookup (if enabled) and TCP and TLS handshake,
 // but will not start sending or receiving HTTP data.
 // [1] https://www.ghacks.net/2017/07/24/disable-preloading-firefox-autocomplete-urls/
-user_pref("browser.urlbar.speculativeConnect.enabled", false);
+//user_pref("browser.urlbar.speculativeConnect.enabled", false);
 // PREF: mousedown speculative connections on bookmarks and history [FF98+]
 // Whether to warm up network connections for places:menus and places:toolbar.
-user_pref("browser.places.speculativeConnect.enabled", false);
+//user_pref("browser.places.speculativeConnect.enabled", false);
 // PREF: network preload <link rel="preload"> [REMOVED]
 // Used to load high-priority resources faster on the current page, for strategic
 // performance improvements.
 // Instructs the browser to immediately fetch and cache high-priority resources
 // for the current page to improve performance. The browser downloads resources
 // but does not execute scripts or apply stylesheets - it just caches them for
 // instant availability later.
 // Unlike other pre-connection tags (except modulepreload), this tag is
 // mandatory for the browser.
 // [1] https://developer.mozilla.org/en-US/docs/Web/HTML/Link_types/preload
 // [2] https://w3c.github.io/preload/
 // [3] https://3perf.com/blog/link-rels/#preload
 // [4] https://medium.com/reloading/preload-prefetch-and-priorities-in-chrome-776165961bbf
 // [5] https://www.smashingmagazine.com/2016/02/preload-what-is-it-good-for/#how-can-preload-do-better
 // [6] https://www.keycdn.com/blog/resource-hints#preload
 // [7] https://github.com/arkenfox/user.js/issues/1098#issue-791949341
 // [8] https://yashints.dev/blog/2018/10/06/web-perf-2#preload
 // [9] https://web.dev/preload-critical-assets/
 //user_pref("network.preload", true); // [REMOVED]
 // PREF: network module preload <link rel="modulepreload"> [FF115+]
 // High-priority loading of current page JavaScript modules.
@@ -499,7 +514,7 @@ user_pref("network.prefetch-next", false);
 // When enabled, it trains and uses Firefox's algorithm to preload page resource
 // by tracking past page resources. It uses a local file (history) of needed images,
 // scripts, etc. to request them preemptively when navigating.
-// [NOTE] By default, it only preconnects DNS, TCP, and SSL handshakes.
+// [NOTE] By default, it only preconnects, doing DNS, TCP, and SSL handshakes.
 // No data sends until clicking. With "network.predictor.enable-prefetch" enabled,
 // it also performs prefetches.
 // [1] https://wiki.mozilla.org/Privacy/Reviews/Necko
@@ -540,17 +555,28 @@ user_pref("network.predictor.enabled", false);
 // PREF: CSS Masonry Layout [NIGHTLY]
 // [1] https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Grid_Layout/Masonry_Layout
 // [2] https://www.smashingmagazine.com/native-css-masonry-layout-css-grid/
 user_pref("layout.css.grid-template-masonry-value.enabled", true);
 // PREF: Prioritized Task Scheduling API [NIGHTLY]
-// [1] https://github.com/yokoffing/Betterfox/issues/355
+// [1] https://blog.mozilla.org/performance/2022/06/02/prioritized-task-scheduling-api-is-prototyped-in-nightly/
-// [2] https://blog.mozilla.org/performance/2022/06/02/prioritized-task-scheduling-api-is-prototyped-in-nightly/
+// [2] https://medium.com/airbnb-engineering/building-a-faster-web-experience-with-the-posttask-scheduler-276b83454e91
-// [3] https://medium.com/airbnb-engineering/building-a-faster-web-experience-with-the-posttask-scheduler-276b83454e91
+user_pref("dom.enable_web_task_scheduling", true);
-// [4] https://github.com/WICG/scheduling-apis/blob/main/explainers/prioritized-post-task.md
+
-// [5] https://wicg.github.io/scheduling-apis/
+// PREF: HTML Sanitizer API [NIGHTLY]
-// [6] https://caniuse.com/mdn-api_taskcontroller
+// [1] https://developer.mozilla.org/en-US/docs/Web/API/Sanitizer
-//user_pref("dom.enable_web_task_scheduling", true);
+// [2] https://caniuse.com/mdn-api_sanitizer
 user_pref("dom.security.sanitizer.enabled", true);
 // PREF: WebGPU [HIGHLY EXPERIMENTAL!]
 // [WARNING] Do not enable unless you are a web developer!
 // [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1746245
 // [2] https://developer.chrome.com/docs/web-platform/webgpu/
 // [3] https://github.com/gpuweb/gpuweb/wiki/Implementation-Status
 // [4] https://hacks.mozilla.org/2020/04/experimental-webgpu-in-firefox/
 //user_pref("dom.webgpu.enabled", true);
    //user_pref("gfx.webgpu.force-enabled", true); // enforce
 // enable WebGPU indirect draws/dispatches:
 //user_pref("dom.webgpu.indirect-dispatch.enabled", true);
 /****************************************************************************
 * SECTION: TAB UNLOAD                                                      *
@@ -567,18 +593,18 @@ user_pref("layout.css.grid-template-masonry-value.enabled", true);
 // PREF: determine when tabs unload [WINDOWS] [LINUX]
 // Notify TabUnloader or send the memory pressure if the memory resource
 // notification is signaled AND the available commit space is lower than
-// this value (in MiB).
+// this value.
-// Set this to some value, e.g. 4/5 of total memory available on your system:
+// Set this to some high value, e.g. 2/3 of total memory available in your system:
-// 4GB=3276, 8GB=6553, 16GB=13107, 32GB=25698, 64GB=52429
+// 4GB=2640, 8GB=5280, 16GB=10560, 32GB=21120, 64GB=42240
 // [1] https://dev.to/msugakov/taking-firefox-memory-usage-under-control-on-linux-4b02
-//user_pref("browser.low_commit_space_threshold_mb", 3276); // default=200; WINDOWS LINUX
+//user_pref("browser.low_commit_space_threshold_mb", 2640); // default=200; WINDOWS LINUX
 // PREF: determine when tabs unload [LINUX]
 // On Linux, Firefox checks available memory in comparison to total memory,
 // and use this percent value (out of 100) to determine if Firefox is in a
 // low memory scenario.
 // [1] https://dev.to/msugakov/taking-firefox-memory-usage-under-control-on-linux-4b02
-//user_pref("browser.low_commit_space_threshold_percent", 20); // default=5; LINUX
+//user_pref("browser.low_commit_space_threshold_percent", 33); // default=5; LINUX
 // PREF: determine how long (in ms) tabs are inactive before they unload
 // 60000=1min; 300000=5min; 600000=10min (default)
@@ -3,7 +3,7 @@
 * Peskyfox                                                                 *
 * "Aquila non capit muscas"                                                *
 * priority: remove annoyances                                              *
- * version: 137                                                             *
+ * version: 126                                                             *
 * url: https://github.com/yokoffing/Betterfox                              *
 * credit: Some prefs are reproduced and adapted from the arkenfox project  *
 * credit urL: https://github.com/arkenfox/user.js                          *
@@ -65,12 +65,14 @@ user_pref("browser.aboutwelcome.enabled", false); // disable Intro screens
 // PREF: disable "What's New" toolbar icon [FF69+]
 //user_pref("browser.messaging-system.whatsNewPanel.enabled", false);
-// PREF: new profile switcher
+// PREF: only show List All Tabs icon when needed
-user_pref("browser.profiles.enabled", true);
+// true=always show tab overflow dropdown (FF106+ default)
 // false=only display tab dropdown when there are too many tabs
 // [1] https://www.ghacks.net/2022/10/19/how-to-hide-firefoxs-list-all-tabs-icon/
 user_pref("browser.tabs.tabmanager.enabled", false);
-// PREF: use native title bar buttons [LINUX]
+// PREF: enable new screenshot tool [FF122+]
-// [1] https://github.com/yokoffing/Betterfox/issues/320
+//user_pref("screenshots.browser.component.enabled", true);
 //user_pref("widget.gtk.non-native-titlebar-buttons.enabled", true);
 /****************************************************************************
 * SECTION: THEME ADJUSTMENTS                                              *
@@ -82,6 +84,12 @@ user_pref("toolkit.legacyUserProfileCustomizations.stylesheets", true);
 // PREF: add compact mode back to options
 user_pref("browser.compactmode.show", true);
 // PREF: remove focus indicator for links
 // [1] https://www.askvg.com/firefox-tip-restore-classic-dotted-outline-focus-indicator-for-links/
 user_pref("browser.display.focus_ring_on_anything", true); 
 user_pref("browser.display.focus_ring_style", 0);
 user_pref("browser.display.focus_ring_width", 0);
 // PREF: preferred color scheme for websites
 // [SETTING] General>Language and Appearance>Website appearance
 // By default, color scheme matches the theme of your browser toolbar (3).
@@ -97,31 +105,28 @@ user_pref("layout.css.prefers-color-scheme.content-override", 2);
 // PREF: prevent private windows being separate from normal windows in taskbar [WINDOWS] [FF106+]
 user_pref("browser.privateWindowSeparation.enabled", false);
 // PREF: reduce the size of the "private window" indicator in tab bar [FF106+]
 //user_pref("browser.privatebrowsing.enable-new-indicator", false); // REMOVED [FF119+]
 // PREF: show search bar [FF122+]
 // Mozilla has removed the search bar option from the settings window.
 //user_pref("browser.search.widget.inNavBar", true);
 // PREF: new tab page wallpapers
 //user_pref("browser.newtabpage.activity-stream.newtabWallpapers.v2.enabled", true); // [DEFAULT FF132+]
 /****************************************************************************
 * SECTION: COOKIE BANNER HANDLING                                         *
 ****************************************************************************/
 // PREF: Cookie Banner handling
 // [DEPRECIATED] Future of the project is unclear. See [5] and [6].
 // [NOTE] Feature still enforces Total Cookie Protection to limit 3rd-party cookie tracking [1]
 // [1] https://github.com/mozilla/cookie-banner-rules-list/issues/33#issuecomment-1318460084
 // [2] https://phabricator.services.mozilla.com/D153642
 // [3] https://winaero.com/make-firefox-automatically-click-on-reject-all-in-cookie-banner-consent/
 // [4] https://docs.google.com/spreadsheets/d/1Nb4gVlGadyxix4i4FBDnOeT_eJp2Zcv69o-KfHtK-aA/edit#gid=0
 // [5] https://bugzilla.mozilla.org/show_bug.cgi?id=1940418
 // [6] https://github.com/mozilla/cookie-banner-rules-list/issues/544
 // 2: reject banners if it is a one-click option; otherwise, fall back to the accept button to remove banner
 // 1: reject banners if it is a one-click option; otherwise, keep banners on screen
 // 0: disable all cookie banner handling
-//user_pref("cookiebanners.service.mode", 1);
+user_pref("cookiebanners.service.mode", 1);
-//user_pref("cookiebanners.service.mode.privateBrowsing", 1);
+user_pref("cookiebanners.service.mode.privateBrowsing", 1);
 // PREF: Cookie Banner global rules
 // Global rules that can handle a list of cookie banner libraries and providers on any site.
@@ -168,7 +173,8 @@ user_pref("full-screen-api.warning.timeout", 0); // default=3000
 // [2] https://reddit.com/r/firefox/comments/wvs04y/comment/ilklzy1/?context=3
 //user_pref("gfx.font_rendering.cleartype_params.rendering_mode", 5);
 //user_pref("gfx.font_rendering.cleartype_params.cleartype_level", 100);
-//user_pref("gfx.font_rendering.cleartype_params.force_gdi_classic_for_families", ""); // DEFAULT FF135+
+//user_pref("gfx.font_rendering.cleartype_params.force_gdi_classic_for_families", "");
 //user_pref("gfx.font_rendering.cleartype_params.force_gdi_classic_max_size", 6);
 //user_pref("gfx.font_rendering.directwrite.use_gdi_table_loading", false);
 // Some users find these helpful:
    //user_pref("gfx.font_rendering.cleartype_params.gamma", 1750);
@@ -194,7 +200,7 @@ user_pref("browser.urlbar.suggest.engines", false);
 //user_pref("browser.urlbar.shortcuts.quickactions", false);
 //user_pref("browser.urlbar.suggest.weather", true); // DEFAULT [FF108]
    //user_pref("browser.urlbar.weather.ignoreVPN", false); // DEFAULT
-//user_pref("browser.urlbar.suggest.calculator", true); // [DEFAULT FF137+]
+user_pref("browser.urlbar.suggest.calculator", true);
 user_pref("browser.urlbar.unitConversion.enabled", true);
 // PREF: disable dropdown suggestions with empty query
@@ -207,18 +213,12 @@ user_pref("browser.urlbar.trending.featureGate", false);
 // PREF: disable urlbar suggestions
 //user_pref("browser.urlbar.addons.featureGate", false); // [FF115+]
 //user_pref("browser.urlbar.fakespot.featureGate", false); // [FF130+] [DEFAULT: false]
 //user_pref("browser.urlbar.mdn.featureGate", false); // [FF117+] [HIDDEN PREF]
 //user_pref("browser.urlbar.pocket.featureGate", false); // [FF116+] [DEFAULT: false]
 //user_pref("browser.urlbar.weather.featureGate", false); // [FF108+] [DEFAULT: false]
 //user_pref("browser.urlbar.clipboard.featureGate", false); // [FF118+] [DEFAULT: true FF125+]
 //user_pref("browser.urlbar.yelp.featureGate", false); // [FF124+] [DEFAULT: false]
 // PREF: disable recent searches [FF120+]
 // [NOTE] Recent searches are cleared with history.
 // [1] https://support.mozilla.org/kb/search-suggestions-firefox
 //user_pref("browser.urlbar.recentsearches.featureGate", false);
 // PREF: disable tab-to-search [FF85+]
 // Alternatively, you can exclude on a per-engine basis by unchecking them in Options>Search
 // [SETTING] Privacy & Security>Address Bar>When using the address bar, suggest>Search engines
@@ -237,12 +237,9 @@ user_pref("browser.urlbar.trending.featureGate", false);
 // disable=0
 //user_pref("browser.urlbar.maxRichResults", 5); // default=10
-// PREF: text fragments
+// PREF: text fragments [FF126+ NIGHTLY]
-// [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1753933#c6
+// [1] https://developer.mozilla.org/en-US/docs/Web/Text_fragments
-// [2] https://developer.mozilla.org/en-US/docs/Web/Text_fragments
+//user_pref("dom.text_fragments.enabled", true);
 // [3] https://web.dev/articles/text-fragments
 //user_pref("dom.text_fragments.enabled", true); // [DEFAULT]
 user_pref("dom.text_fragments.create_text_fragment.enabled", true);
 /****************************************************************************
 * SECTION: AUTOPLAY                                                        *
@@ -266,13 +263,13 @@ user_pref("dom.text_fragments.create_text_fragment.enabled", true);
 * SECTION: NEW TAB PAGE                                                    *
 ****************************************************************************/
-// PREF: startup / new tab page
+// PREF: open windows/tabs from last session
 // 0=blank, 1=home, 2=last visited page, 3=resume previous session
 // [NOTE] Session Restore is cleared with history and not used in Private Browsing mode
-// [SETTING] General>Startup>Open previous windows and tabs
+// [SETTING] General>Startup>Restore previous session
 //user_pref("browser.startup.page", 3);
-// PREF: set HOME+NEW WINDOW page to blank tab
+// PREF: set HOME+NEWWINDOW page to blank tab
 // about:home=Activity Stream, custom URL, about:blank
 // [SETTING] Home>New Windows and Tabs>Homepage and new windows
 // [Custom URLs] Set two or more websites in Home Page Field – delimited by |
@@ -289,12 +286,12 @@ user_pref("dom.text_fragments.create_text_fragment.enabled", true);
 // [1] https://github.com/arkenfox/user.js/issues/1556
 //user_pref("browser.newtabpage.activity-stream.discoverystream.enabled", false);
 //user_pref("browser.newtabpage.activity-stream.showSearch", true); // NTP Web Search [DEFAULT]
-//user_pref("browser.newtabpage.activity-stream.feeds.topsites", false); // Shortcuts
+user_pref("browser.newtabpage.activity-stream.feeds.topsites", false); // Shortcuts
-      user_pref("browser.newtabpage.activity-stream.showSponsoredTopSites", false); // Shortcuts > Sponsored shortcuts [FF83+]
+      //user_pref("browser.newtabpage.activity-stream.showSponsoredTopSites", false); // Shortcuts > Sponsored shortcuts [FF83+]
-//user_pref("browser.newtabpage.activity-stream.showWeather", false); // Weather [FF130+]
+//user_pref("browser.newtabpage.activity-stream.showWeather", false); // Weather [FF128+ NIGHTLY]
-    //user_pref("browser.newtabpage.activity-stream.system.showWeather", false); // hides Weather as an UI option
+    //user_pref("browser.newtabpage.activity-stream.system.showWeather", false); // Weather [FF128+ NIGHTLY]
 user_pref("browser.newtabpage.activity-stream.feeds.section.topstories", false); // Recommended by Pocket
-      user_pref("browser.newtabpage.activity-stream.showSponsored", false); // Sponsored Stories [FF58+]  
+      //user_pref("browser.newtabpage.activity-stream.showSponsored", false); // Sponsored Stories [FF58+]  
 //user_pref("browser.newtabpage.activity-stream.feeds.section.highlights", false); // Recent Activity [DEFAULT]
      //user_pref("browser.newtabpage.activity-stream.section.highlights.includeBookmarks", false);
      //user_pref("browser.newtabpage.activity-stream.section.highlights.includeDownloads", false);
@@ -307,7 +304,7 @@ user_pref("browser.newtabpage.activity-stream.feeds.section.topstories", false);
 // PREF: clear default topsites
 // [NOTE] This does not block you from adding your own.
-user_pref("browser.newtabpage.activity-stream.default.sites", "");
+//user_pref("browser.newtabpage.activity-stream.default.sites", "");
 // PREF: keep search in the search box; prevent from jumping to address bar
 // [1] https://www.reddit.com/r/firefox/comments/oxwvbo/firefox_start_page_search_options/
@@ -345,7 +342,7 @@ user_pref("extensions.pocket.enabled", false);
 // [SETTING] General>Files and Applications>Applications>What should Firefox do with other files?
 // false=Save files
 // true=Ask whether to open or save files
-//user_pref("browser.download.always_ask_before_handling_new_types", true);
+user_pref("browser.download.always_ask_before_handling_new_types", true);
 // PREF: always ask where to download
 // [OPTIONAL HARDENING] Enforce user interaction for greater security.
@@ -509,19 +506,24 @@ user_pref("layout.word_select.eat_space_to_next_word", false);
 //user_pref("dom.disable_open_during_load", true); // DEFAULT
 //user_pref("privacy.popups.showBrowserMessage", true); // DEFAULT
-// PREF: enable Tab Previews [FF122+, FF128+]
+// PREF: enable Tab Preview [FF122+]
-// [1] https://github.com/yokoffing/Betterfox/issues/309
+//user_pref("browser.tabs.cardPreview.enabled", true);
 //user_pref("browser.tabs.hoverPreview.enabled", true);
    //user_pref("browser.tabs.hoverPreview.showThumbnails", true); // DEFAULT
 /****************************************************************************
- * SECTION: KEYBOARD AND SHORTCUTS                                          *
+ * SECTION: UNCATEGORIZED                                                   *
- ****************************************************************************/
+****************************************************************************/
 // PREF: disable backspace action
 // 0=previous page, 1=scroll up, 2=do nothing
 //user_pref("browser.backspace_action", 2); // DEFAULT
 // PREF: disable Reader mode
 // [TIP] Use about:reader?url=%s as a keyword to open links automatically in reader mode [1].
 // Firefox will not have to parse webpage for Reader when navigating.
 // Extremely minimal performance impact, if you disable.
 // [1] https://www.reddit.com/r/firefox/comments/621sr2/i_found_out_how_to_automatically_open_a_url_in/ 
 //user_pref("reader.parse-on-load.enabled", false);
 // PREF: disable ALT key toggling the menu bar
 //user_pref("ui.key.menuAccessKeyFocuses", false);
    //user_pref("ui.key.menuAccessKey", 18); // DEFAULT
@@ -530,26 +532,6 @@ user_pref("layout.word_select.eat_space_to_next_word", false);
 // [SETTING] Ctrl+Tab cycles through tabs in recently used order
 //user_pref("browser.ctrlTab.sortByRecentlyUsed", true);
 // PREF: disable websites overriding Firefox's keyboard shortcuts [FF58+]
 // 0=ask (default), 1=allow, 2=block
 // [SETTING] to add site exceptions: Ctrl+I>Permissions>Override Keyboard Shortcuts ***/
 //user_pref("permissions.default.shortcuts", 2);
 // PREF: hide frequent sites on right-click of taskbar icon [WINDOWS?]
 //user_pref("browser.taskbar.lists.frequent.enabled", false);
 /****************************************************************************
 * SECTION: ACCESSIBILITY AND USABILITY                                     *
 ****************************************************************************/
 // PREF: disable Reader mode parse on load
 // Reader supposedly costs extra CPU after page load.
 // [TIP] Use about:reader?url=%s as a keyword to open links automatically in reader mode [1].
 // Firefox will not have to parse webpage for Reader when navigating.
 // Extremely minimal performance impact, if you disable.
 // [1] https://www.reddit.com/r/firefox/comments/621sr2/i_found_out_how_to_automatically_open_a_url_in/ 
 //user_pref("reader.parse-on-load.enabled", false);
 // PREF: Spell-check
 // 0=none, 1-multi-line, 2=multi-line & single-line
 //user_pref("layout.spellcheckDefault", 1); // DEFAULT
@@ -558,25 +540,9 @@ user_pref("layout.word_select.eat_space_to_next_word", false);
 // [1] https://kb.mozillazine.org/Ui.SpellCheckerUnderlineStyle#Possible_values_and_their_effects
 //user_pref("ui.SpellCheckerUnderlineStyle", 1);
 // PREF: remove underlined characters from various settings
 //user_pref("ui.key.menuAccessKey", 0);
 // PREF: enable CSS moz document rules
 // Still needed for Stylus?
 // [1] https://reddit.com/r/FirefoxCSS/comments/8x2q97/reenabling_mozdocument_rules_in_firefox_61/
 //user_pref("layout.css.moz-document.content.enabled", true);
 /****************************************************************************
 * SECTION: BOOKMARK MANAGEMENT                                             *
 ****************************************************************************/
 // PREF: limit the number of bookmark backups Firefox keeps
 //user_pref("browser.bookmarks.max_backups", 1); // default=15
 /****************************************************************************
 * SECTION: ZOOM AND DISPLAY SETTINGS                                       *
 ****************************************************************************/
 // PREF: zoom only text on webpage, not other elements
 //user_pref("browser.zoom.full", false);
@@ -591,40 +557,47 @@ user_pref("layout.word_select.eat_space_to_next_word", false);
 //user_pref("mousewheel.with_control.action", 3);
 //user_pref("mousewheel.with_meta.action", 3);
-// PREF: adjust the minimum tab width
+// PREF: hide image placeholders
-// Can be overridden by userChrome.css
+//user_pref("browser.display.show_image_placeholders", false);
 //user_pref("browser.tabs.tabMinWidth", 120); // default=76
 // PREF: always underline links [FF120+]
 //user_pref("layout.css.always_underline_links", false); // DEFAULT
 /****************************************************************************
 * SECTION: DEVELOPER TOOLS                                                 *
 ****************************************************************************/
 // PREF: wrap long lines of text when using source / debugger
 //user_pref("view_source.wrap_long_lines", true);
 //user_pref("devtools.debugger.ui.editor-wrapping", true);
-// PREF: enable ASRouter Devtools at about:newtab#devtools
+// PREF: enable ASRouter Devtools at about:newtab#devtools (useful if you're making your own CSS theme)
 // This is useful if you're making your own CSS theme.
 // [1] https://firefox-source-docs.mozilla.org/browser/components/newtab/content-src/asrouter/docs/debugging-docs.html
 //user_pref("browser.newtabpage.activity-stream.asrouter.devtoolsEnabled", true);
 // show user agent styles in the inspector
 //user_pref("devtools.inspector.showUserAgentStyles", true);
-
+// show native anonymous content (like scrollbars or tooltips) and user agent shadow roots (like the components of an <input> element) in the inspector
 // show native anonymous content (like scrollbars or tooltips) and user
 // agent shadow roots (like the components of an <input> element) in the inspector
 //user_pref("devtools.inspector.showAllAnonymousContent", true);
-/****************************************************************************
+// PREF: print preview
- * SECTION: IMAGE AND MEDIA HANDLING                                        *
+//user_pref("print.tab_modal.enabled", true); // DEFAULT
- ****************************************************************************/
+
 // PREF: adjust the minimum tab width
 // Can be overridden by userChrome.css
 //user_pref("browser.tabs.tabMinWidth", 120); // default=76
 // PREF: remove underlined characters from various settings
 //user_pref("ui.key.menuAccessKey", 0);
 // PREF: disable websites overriding Firefox's keyboard shortcuts [FF58+]
 // 0=ask (default), 1=allow, 2=block
 // [SETTING] to add site exceptions: Ctrl+I>Permissions>Override Keyboard Shortcuts ***/
 //user_pref("permissions.default.shortcuts", 2);
 // PREF: JPEG XL image format [NIGHTLY]
 // May not affect anything on ESR/Stable channel [2].
-// [TEST] https://www.jpegxl.io/firefox#firefox-jpegxl-tutorial
+// [TEST] https://jpegxl.io/tutorials/firefox/#firefoxjpegxltutorial
 // [1] https://cloudinary.com/blog/the-case-for-jpeg-xl
 // [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1539075#c51
 //user_pref("image.jxl.enabled", true);
 // PREF: enable CSS moz document rules
 // Still needed for Stylus?
 // [1] https://reddit.com/r/FirefoxCSS/comments/8x2q97/reenabling_mozdocument_rules_in_firefox_61/
 //user_pref("layout.css.moz-document.content.enabled", true);
 // PREF: always underline links [FF120+]
 //user_pref("layout.css.always_underline_links", false); // DEFAULT
@@ -1,24 +1,35 @@
-![GitHub Maintained](https://img.shields.io/badge/maintained-yes-green)![GitHub last commit](https://img.shields.io/github/last-commit/yokoffing/betterfox)![GitHub issues](https://img.shields.io/github/issues/yokoffing/betterfox)![GitHub closed issues](https://img.shields.io/github/issues-closed/yokoffing/betterfox)![GitHub repo size](https://img.shields.io/github/repo-size/yokoffing/betterfox)[![shields.io Stars](https://img.shields.io/github/stars/yokoffing/betterfox)](https://github.com/yokoffing/betterfox/stargazers)
+![GitHub Maintained](https://img.shields.io/badge/open%20source-yes-orange)
 ![GitHub Maintained](https://img.shields.io/badge/maintained-yes-yellow)
 [![Visitors](https://hits.seeyoufarm.com/api/count/incr/badge.svg?url=https%3A%2F%2Fgithub.com%2Fyokoffing%2FBetter-Fox&count_bg=%2379C83D&title_bg=%23555555&icon=&icon_color=%23E7E7E7&title=visitors&edge_flat=false)](https://hits.seeyoufarm.com)
 # Betterfox
 31% faster than regular Firefox<sup>[1](https://medium.com/@mihirgrand/comparing-popular-firefox-forks-6fa83fdfdaad#:~:text=31%25%20more%20than%20vanilla%20Firefox)</sup> :rocket:
 [about:config](https://support.mozilla.org/en-US/kb/about-config-editor-firefox) tweaks to enhance [Mozilla Firefox](https://www.mozilla.org/en-US/firefox/new/). 
-## Made for everyday browsing
+:new: Now with [ESR support](https://github.com/yokoffing/Betterfox/tree/esr115#betterfox-esr).
 [Faster](https://medium.com/@mihirgrand/comparing-popular-firefox-forks-6fa83fdfdaad#:~:text=31%25%20more%20than%20vanilla%20Firefox), more private and secure — without using third-party code.
-Betterfox is an opinionated preference list inspired by the [law of diminishing returns](https://miro.medium.com/v2/resize:fit:1206/1*lcOcxriV_II_lZuXQYLoXg.jpeg) and the [minimum effective dose](https://medium.com/the-mission/less-is-more-the-minimum-effective-dose-e6d56625931e).
+## Made for everyday browsing
 **A secure, blazing fast browsing experience. Without breakage.**
 Betterfox is an opinionated preference list inspired by the [law of diminishing returns](http://psychologyofwellbeing.com/wp-content/uploads/2017/01/Diminishing-Returns.gif) and the [minimum effective dose](https://medium.com/the-mission/less-is-more-the-minimum-effective-dose-e6d56625931e).
 ## Required reading
 *If you don't have it already: [Get Firefox](https://www.mozilla.org/en-US/firefox/all/#product-desktop-release)*
 0) Create a [backup profile](https://github.com/yokoffing/Betterfox/wiki/Backup).
 1) Download the user.js file [here](https://raw.githubusercontent.com/yokoffing/Betterfox/main/user.js) (Right click > `Save Link As…`).
-2) Review both [Common Overrides](https://github.com/yokoffing/Betterfox/wiki/Common-Overrides) and [Optional Hardening](https://github.com/yokoffing/Betterfox/wiki/Optional-Hardening) to make any necessary changes.
+2) Review [Common Overrides](https://github.com/yokoffing/Betterfox/wiki/Common-Overrides) and make any necessary changes.
   * See also [Optional Hardening](https://github.com/yokoffing/Betterfox/wiki/Optional-Hardening) for other recommendations.
 3) Open Firefox. In the URL bar, type `about:profiles` and press **Enter**.
-4) For the profile you want to use, click **Open Folder** in the **Root Directory** section.
+4) For the profile you want to use (or use default), click **Open Folder** in the **Root Directory** section.
 5) Move the `user.js` file into the folder.
 *After restarting Firefox:*
 1) Get an **ad blocker** like [uBlock Origin](https://addons.mozilla.org/blog/ublock-origin-everything-you-need-to-know-about-the-ad-blocker/) with our [recommended filters](https://github.com/yokoffing/filterlists#guidelines).
-2) Enable **DNS-level protection** with your chosen [provider](https://github.com/yokoffing/Betterfox/wiki/Optional-Hardening#secure-dns) to further protect against security threats, ads, and trackers.
+2) Enable **DNS-level protection** with [NextDNS](https://nextdns.io/?from=xujj63g5). <sup><i>Use the link and support this page!</i></sup>
    * Check out our configuration [guide](https://github.com/yokoffing/NextDNS-Config) for the best experience.
    * See how to [quickly enable](https://support.mozilla.org/en-US/kb/dns-over-https) **secure DNS** in Firefox.
 ## Simple goals
 1) **Minimalism:** get what isn't needed out of the way
@@ -42,20 +53,14 @@ The `user.js` — a configuration file that controls Firefox settings — is cur
 ## Recognition
 ### Browser Integration
 > [!IMPORTANT]
 > While the browsers listed below incorporate Betterfox to some extent, they often modify it in ways that reduce its effectiveness. For optimal results, apply the `user.js` file even when using Firefox forks.
 * [Zen](https://github.com/zen-browser/desktop?tab=readme-ov-file) | [files](https://github.com/zen-browser/desktop/blob/stable/src/browser/app/profile/zen-browser.js) (July 2024)
 * [Midori](https://github.com/goastian/midori-desktop/blob/ESR115/README.md) | [files](https://github.com/goastian/midori-desktop/blob/f3d8d96eb8e08f35a64e3c957bea4e839d7c7730/floorp/browser/components/userjsUtils.sys.mjs#L28-L33) (Dec 2023?)
 * [Mercury](https://github.com/Alex313031/Mercury/releases/tag/v.115.3.0) | [files](https://github.com/Alex313031/Mercury/commit/eb9600f9fb8f48c8f5b5c6f3264fbcdb5caff7f5) (Sep 2023)
-* [Waterfox](https://www.waterfox.net/docs/releases/G6.0/) | [files](https://github.com/WaterfoxCo/Waterfox/tree/current/waterfox/browser/app/profile) (Sep 2023)
+* [Waterfox](https://www.waterfox.net/en-US/docs/releases/G6.0/) | [files](https://github.com/WaterfoxCo/Waterfox/tree/current/waterfox/browser/app/profile) (Sep 2023)
 * [Floorp](https://github.com/Floorp-Projects/Floorp#-betterfox) <sup>[1](https://github.com/Floorp-Projects/Floorp/issues/233#issuecomment-1543557167) [2](https://blog.ablaze.one/3135/2023-04-01/)</sup> | [files](https://github.com/Floorp-Projects/Floorp/blob/ESR115/floorp/browser/components/preferences/userjs.inc.xhtml) (Apr 2023)
 * [Pulse](https://github.com/pulse-browser/browser#%EF%B8%8F-credits) | [files](https://github.com/pulse-browser/browser/tree/alpha/src/browser/app/profile) (Dec 2021)
 * [Ghostery Private Browser](https://github.com/ghostery/user-agent-desktop#community) <sup>[1](https://web.archive.org/web/20210509171835/https://www.ghostery.com/ghostery-dawn-update-more/) [2](https://web.archive.org/web/20210921114333/https://www.ghostery.com/ghostery-dawn-product-update/)</sup> | [files](https://github.com/ghostery/user-agent-desktop/tree/main/brands/ghostery/branding/pref) (Feb 2021)
 ### YouTube
 * [A Better Firefox](https://youtu.be/JuHIwCFx34Q?si=1dx39t3HX5kzNVj-&t=133) (Mar 2025)
 * [Ditch Chrome for One Of These BETTER BROWSERS!](https://youtu.be/ygkxFc8SZlc?si=m5NQe-b_oFXs5crb&t=230) (Aug 2024)
 * [The ULTIMATE Browser Tier List](https://youtu.be/j5r6jFE8gic?t=560) (Mar 2023)
 * [I Hate Firefox. But I'm Still Switching Back to It.](https://youtu.be/w0SJFED5xK0?t=220) (Nov 2022)
 * [Español] [Optimize and Accelerate Firefox](https://www.youtube.com/watch?v=3XtoONmq5_Q) (Nov 2022) 
@@ -66,8 +71,7 @@ The `user.js` — a configuration file that controls Firefox settings — is cur
 * [GhoSTORIES with Franz & Pete](https://anchor.fm/ghostories/episodes/S2E6-We-Talking-Ghostery-Dawn----Again-er0q02/a-a4o5vmh) | 17:05–18:40 (Feb 2021)
 ### Articles
-* [Español] [Firefox is an excellent browser, but this small modification makes it much faster and more private](https://www.genbeta.com/a-fondo/firefox-excelente-navegador-esta-pequena-modificacion-hace-mucho-rapido-privado-asi-funciona-betterfox) (Jan 2025)
+* [Browsers for Daily Using](https://anhkhoakz.neocities.org/blog/browsers-for-daily-using) (Jan 2024)
 * [Browsers for Daily Use](https://anhkhoakz.neocities.org/blog/browsers-for-daily-using/#firefox-but-hardened) (Jan 2024)
 * [Avoiding Manifest V3 – Escaping the Ad-Pocalypse](https://www.xbitlabs.com/avoiding-manifest-v3/) (Dec 2023)
 * [German] [Pulse Browser Review: Firefox fork with Turbo tweaks and Opera sidebar](https://www.computerbild.de/artikel/cb-Tipps-Software-Pulse-Browser-Review-ein-Firefox-Fork-mit-Seitenleiste-wie-bei-Opera-35644139.html#:~:text=Noch%20mehr%20Speed%2DFeatures) (Apr 2023)
 * [2023 Browser Showdown: Comparing Chrome, Brave, Firefox, Vivaldi, and Opera](https://www.appdate.lk/technology/2023-browser-showdown/) (Jan 2023)
@@ -82,10 +86,9 @@ The `user.js` — a configuration file that controls Firefox settings — is cur
 * “I use this one ... The performance is absolutely amazing. There’s definitely a huge difference when it comes to loading sites.” - [DIRIKtv](https://youtu.be/N8IOJiOFVEk?t=16)
 * "BetterFox ... will provide good-enough privacy and help with performance." - [Qdoit12Super](https://old.reddit.com/r/browsers/comments/139h4my/suggestion_for_finding_3_good_privacy_focus/jj3n3qn/?context=2)
 * "...drastically changed the experience with Firefox for me. Improved speed, security, smoothness, and removed clutter." - [AppDate](https://www.appdate.lk/technology/2023-browser-showdown/#:~:text=Used%20the%20BetterFox%20user%20config%20settings%20with%20some%20overrides%20which%20drastically%20changed%20the%20experience)
 * "Firefox with uBlock Origin extension and tuned with Betterfox is faster than Safari."  - [cugeloid](https://elephas.app/blog/best-browsers-mac#what-is-the-best-browser-for-mac-according-to-redditandnbsp)
 * "I don't think I could use Firefox without Betterfox." - [Professional_Fun4616](https://old.reddit.com/r/nextdns/comments/15y815f/the_people_behind_betterfox_have_this_awesome/jxb7cir/?context=3)
 * "The best collection of tweaks available." - [AuRiMaS](https://old.reddit.com/r/MozillaFirefox/comments/15cc1vk/about_changes_in_aboutconfig/jtyx910/?context=3)
-* "FF is now much snappier!" - [whotheff](https://old.reddit.com/r/firefox/comments/z5auzi/firefox_not_properly_usingrecognizing_gpu_poor/iy36hyz/)
+* "FF is now much snappier! Thanks a lot for the suggestions!" - [whotheff](https://old.reddit.com/r/firefox/comments/z5auzi/firefox_not_properly_usingrecognizing_gpu_poor/iy36hyz/)
 * "...the experience is so good now I don’t think I’ll go back to any of the chromium based browsers." - [Mr_Compromise](https://old.reddit.com/r/pcmasterrace/comments/zwioe1/what_browser_will_you_be_using_in_2023_please/j1wmbxo/)
 ## Support
@@ -100,7 +103,6 @@ If you like the project, leave a :star: (top right) and become a [stargazer](htt
 ## Credit
 * Betterfox mirrors the ongoing work provided by [arkenfox](https://github.com/arkenfox/user.js). Additionally, this repository includes content reproduced or adapted from other sources. Credit for overlapping material goes to the original authors.
 * Appreciation goes to the [Firefox](https://www.mozilla.org/en-US/firefox/new/) team and developers working on [Bugzilla](https://bugzilla.mozilla.org/home), fighting for the open web.
 * Thanks to [Denperidge](https://github.com/Denperidge) for adding [`install.py`](https://github.com/yokoffing/Betterfox/blob/main/install.py) for advanced users in v.131.
 * A special thanks to [Alex Kontos](https://github.com/MrAlex94) of [Waterfox](https://github.com/WaterfoxCo/Waterfox) for his collaboration in v.116.
 * Many thanks to the 2021 [Ghostery](https://github.com/ghostery) team for testing Betterfox at scale in its early days.
@@ -3,7 +3,7 @@
 * Securefox                                                                *
 * "Natura non contristatur"                                                *     
 * priority: provide sensible security and privacy                          *
- * version: 138                                                             *
+ * version: 126                                                             *
 * url: https://github.com/yokoffing/Betterfox                              *
 * credit: Most prefs are reproduced and adapted from the arkenfox project  *
 * credit urL: https://github.com/arkenfox/user.js                          *
@@ -21,10 +21,10 @@
 // [NOTE] FF86: "Strict" tracking protection enables dFPI.
 // [1] https://support.mozilla.org/en-US/kb/enhanced-tracking-protection-firefox-desktop
 // [2] https://www.reddit.com/r/firefox/comments/l7xetb/network_priority_for_firefoxs_enhanced_tracking/gle2mqn/?web2x&context=3
 user_pref("browser.contentblocking.category", "strict"); // [HIDDEN]
 //user_pref("privacy.trackingprotection.enabled", true); // enabled with "Strict"
 //user_pref("privacy.trackingprotection.pbmode.enabled", true); // DEFAULT
 //user_pref("browser.contentblocking.customBlockList.preferences.ui.enabled", false); // DEFAULT
 user_pref("browser.contentblocking.category", "strict");
 //user_pref("privacy.trackingprotection.socialtracking.enabled", true); // enabled with "Strict"
    //user_pref("privacy.socialtracking.block_cookies.enabled", true); // DEFAULT
 //user_pref("privacy.trackingprotection.cryptomining.enabled", true); // DEFAULT
@@ -38,8 +38,6 @@ user_pref("browser.contentblocking.category", "strict"); // [HIDDEN]
    //user_pref("privacy.annotate_channels.strict_list.pbmode.enabled", true); // DEFAULT
 //user_pref("privacy.fingerprintingProtection", true); // [FF114+] [ETP FF119+] enabled with "Strict"
    //user_pref("privacy.fingerprintingProtection.pbmode", true); // DEFAULT
 //user_pref("privacy.bounceTrackingProtection.mode", 1); // [FF131+] [ETP FF133+]
 // [1] https://searchfox.org/mozilla-central/source/toolkit/components/antitracking/bouncetrackingprotection/nsIBounceTrackingProtection.idl#11-23
 // PREF: query stripping
 // Currently uses a small list [1]
@@ -56,27 +54,15 @@ user_pref("browser.contentblocking.category", "strict"); // [HIDDEN]
 //user_pref("privacy.query_stripping.strip_list", ""); // DEFAULT
 //user_pref("privacy.query_stripping.strip_on_share.enabled", true);
-// PREF: Smartblock
+// PREF: allow embedded tweets, Instagram and Reddit posts, and TikTok embeds
 // [1] https://support.mozilla.org/en-US/kb/smartblock-enhanced-tracking-protection
 // [2] https://www.youtube.com/watch?v=VE8SrClOTgw
 // [3] https://searchfox.org/mozilla-central/source/browser/extensions/webcompat/data/shims.js
 //user_pref("extensions.webcompat.enable_shims", true); // [HIDDEN] enabled with "Strict"
 //user_pref("extensions.webcompat.smartblockEmbeds.enabled", true); // [DEFAULT FF137+]
 // PREF: allow embedded tweets and reddit posts [FF136+]
 // [TEST - reddit embed] https://www.pcgamer.com/amazing-halo-infinite-bugs-are-already-rolling-in/
 // [TEST - instagram embed] https://www.ndtv.com/entertainment/bharti-singh-and-husband-haarsh-limbachiyaa-announce-pregnancy-see-trending-post-2646359
 // [TEST - tweet embed] https://www.newsweek.com/cryptic-tweet-britney-spears-shows-elton-john-collab-may-date-back-2015-1728036
 // [TEST - tiktok embed] https://www.vulture.com/article/snl-adds-four-new-cast-members-for-season-48.html
 // [TEST - truthsocial embed] https://www.newsweek.com/donald-trump-congratulates-patrick-brittany-mahomes-new-baby-2027097
 // [1] https://www.reddit.com/r/firefox/comments/l79nxy/firefox_dev_is_ignoring_social_tracking_preference/gl84ukk
 // [2] https://www.reddit.com/r/firefox/comments/pvds9m/reddit_embeds_not_loading/
-//user_pref("urlclassifier.trackingSkipURLs", "embed.reddit.com, *.twitter.com, *.twimg.com"); // MANUAL [FF136+]
+user_pref("urlclassifier.trackingSkipURLs", "*.reddit.com, *.twitter.com, *.twimg.com, *.tiktok.com"); // MANUAL
-//user_pref("urlclassifier.features.socialtracking.skipURLs", "*.twitter.com, *.twimg.com"); // MANUAL [FF136+]
+user_pref("urlclassifier.features.socialtracking.skipURLs", "*.instagram.com, *.twitter.com, *.twimg.com"); // MANUAL
 // PREF: allow embedded tweets, Instagram and Reddit posts, and TikTok embeds [before FF136+]
 //user_pref("urlclassifier.trackingSkipURLs", "*.reddit.com, *.twitter.com, *.twimg.com, *.tiktok.com"); // MANUAL
 //user_pref("urlclassifier.features.socialtracking.skipURLs", "*.instagram.com, *.twitter.com, *.twimg.com"); // MANUAL
 // PREF: lower the priority of network loads for resources on the tracking protection list [NIGHTLY]
 // [1] https://github.com/arkenfox/user.js/issues/102#issuecomment-298413904
@@ -121,9 +107,7 @@ user_pref("browser.contentblocking.category", "strict"); // [HIDDEN]
 // [5] https://hacks.mozilla.org/2021/02/introducing-state-partitioning/
 // [6] https://github.com/arkenfox/user.js/issues/1281
 // [7] https://hacks.mozilla.org/2022/02/improving-the-storage-access-api-in-firefox/
 // [8] https://blog.includesecurity.com/2025/04/cross-site-websocket-hijacking-exploitation-in-2025/
 //user_pref("network.cookie.cookieBehavior", 5); // DEFAULT FF103+
 //user_pref("network.cookie.cookieBehavior.optInPartitioning", true); // [ETP FF132+]
 //user_pref("browser.contentblocking.reject-and-isolate-cookies.preferences.ui.enabled", true); // DEFAULT
 // PREF: Network Partitioning
@@ -136,12 +120,18 @@ user_pref("browser.contentblocking.category", "strict"); // [HIDDEN]
 // [3] https://blog.mozilla.org/security/2021/01/26/supercookie-protections/
 //user_pref("privacy.partition.network_state", true); // DEFAULT
    //user_pref("privacy.partition.serviceWorkers", true); // [DEFAULT: true FF105+]
-    //user_pref("privacy.partition.network_state.ocsp_cache", true); // [DEFAULT: true FF123+]
+    //user_pref("privacy.partition.network_state.ocsp_cache", true); // enabled with "Strict" [DEFAULT: true FF123+]
    //user_pref("privacy.partition.bloburl_per_partition_key", true); // [FF118+]
 // enable APS (Always Partitioning Storage) [FF104+]
 //user_pref("privacy.partition.always_partition_third_party_non_cookie_storage", true); // [DEFAULT: true FF109+]
 //user_pref("privacy.partition.always_partition_third_party_non_cookie_storage.exempt_sessionstorage", false); // [DEFAULT: false FF109+]
 // PREF: Smartblock
 // [1] https://support.mozilla.org/en-US/kb/smartblock-enhanced-tracking-protection
 // [2] https://www.youtube.com/watch?v=VE8SrClOTgw
 // [3] https://searchfox.org/mozilla-central/source/browser/extensions/webcompat/data/shims.js
 //user_pref("extensions.webcompat.enable_shims", true); // enabled with "Strict"
 // PREF: Redirect Tracking Prevention / Cookie Purging
 // All storage is cleared (more or less) daily from origins that are known trackers and that
 // haven’t received a top-level user interaction (including scroll) within the last 45 days.
@@ -153,6 +143,14 @@ user_pref("browser.contentblocking.category", "strict"); // [HIDDEN]
 // [6] https://firefox-source-docs.mozilla.org/toolkit/components/antitracking/anti-tracking/cookie-purging/index.html
 //user_pref("privacy.purge_trackers.enabled", true); // DEFAULT
 // PREF: Bounce Tracking Protection [FF127+ NIGHTLY]
 // A new standardised variant of Cookie Purging that uses heuristics to detect bounce trackers,
 // rather than relying on tracker lists.
 // [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1895222
 // [2] https://groups.google.com/a/mozilla.org/g/dev-platform/c/M6erM0SjPTM
 //user_pref("privacy.bounceTrackingProtection.enabled", true); // DEFAULT
 //user_pref("privacy.bounceTrackingProtection.enableDryRunMode", false); // DEFAULT
 // PREF: SameSite Cookies
 // Currently, the absence of the SameSite attribute implies that cookies will be
 // attached to any request for a given origin, no matter who initiated that request.
@@ -167,10 +165,9 @@ user_pref("browser.contentblocking.category", "strict"); // [HIDDEN]
 // [6] https://web.dev/samesite-cookies-explained/
 // [7] https://portswigger.net/web-security/csrf/bypassing-samesite-restrictions
 // [8] https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies
 // [9] https://blog.includesecurity.com/2025/04/cross-site-websocket-hijacking-exploitation-in-2025/
 // [TEST] https://samesite-sandbox.glitch.me/
 //user_pref("network.cookie.sameSite.laxByDefault", true);
-//user_pref("network.cookie.sameSite.noneRequiresSecure", true); // [DEFAULT FF131+]
+user_pref("network.cookie.sameSite.noneRequiresSecure", true);
 //user_pref("network.cookie.sameSite.schemeful", true);
 // PREF: Hyperlink Auditing (click tracking)
@@ -264,7 +261,6 @@ user_pref("security.OCSP.enabled", 0);
 // [1] https://blog.mozilla.org/security/2013/07/29/ocsp-stapling-in-firefox/
 // [2] https://www.imperialviolet.org/2014/04/19/revchecking.html
 // [3] https://www.ssl.com/blogs/how-do-browsers-handle-revoked-ssl-tls-certificates/#ftoc-heading-3
 // [4] https://letsencrypt.org/2024/12/05/ending-ocsp/
 //user_pref("security.OCSP.require", true);
 // PREF: CRLite
@@ -276,7 +272,7 @@ user_pref("security.OCSP.enabled", 0);
 // 3 = consult CRLite and enforce "Not Revoked" results, but defer to OCSP for "Revoked" [FF99+, default FF100+]
 // [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1429800,1670985,1753071
 // [2] https://blog.mozilla.org/security/tag/crlite/
-//user_pref("security.remote_settings.crlite_filters.enabled", true); // [DEFAULT: true FF137+]
+user_pref("security.remote_settings.crlite_filters.enabled", true);
 user_pref("security.pki.crlite_mode", 2);
 // PREF: HTTP Public Key Pinning (HPKP)
@@ -306,15 +302,11 @@ user_pref("security.pki.crlite_mode", 2);
 //user_pref("security.enterprise_roots.enabled", false);
    //user_pref("security.certerrors.mitm.auto_enable_enterprise_roots", false);
-// PREF: disable content analysis by Data Loss Prevention (DLP) agents [FF124+]
+// PREF: disable content analysis by DLP (Data Loss Prevention) agents [FF124+]
-// DLP agents are background processes on managed computers that
+// DLP agents are background processes on managed computers that allow enterprises to monitor locally running
-// allow enterprises to monitor locally running applications for
+// applications for data exfiltration events, which they can allow/block based on customer defined DLP policies.
 // data exfiltration events, which they can allow/block based on
 // customer-defined DLP policies.
 // [1] https://github.com/chromium/content_analysis_sdk
-// [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1880314
+//user_pref("browser.contentanalysis.default_allow", false); // DEFAULT
 //user_pref("browser.contentanalysis.enabled", false); // [FF121+] [DEFAULT]
 //user_pref("browser.contentanalysis.default_result", 0; // [FF127+] [DEFAULT]
 /****************************************************************************
 * SECTION: SSL (Secure Sockets Layer) / TLS (Transport Layer Security)    *
@@ -336,7 +328,7 @@ user_pref("security.ssl.treat_unsafe_negotiation_as_broken", true);
 // know that. Setting this pref to true is the only way for the
 // browser to ensure there will be no unsafe renegotiations on
 // the channel between the browser and the server.
-// [STATS] SSL Labs > Renegotiation Support (May 2024) reports over 99.7% of top sites have secure renegotiation [4].
+// [STATS] SSL Labs > Renegotiation Support (Feb 2023) reports over 99.3% of top sites have secure renegotiation [4].
 // [1] https://wiki.mozilla.org/Security:Renegotiation
 // [2] https://datatracker.ietf.org/doc/html/rfc5746
 // [3] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3555
@@ -355,12 +347,6 @@ user_pref("browser.xul.error_pages.expert_bad_cert", true);
 // [3] https://blog.cloudflare.com/tls-1-3-overview-and-q-and-a/
 user_pref("security.tls.enable_0rtt_data", false);
 // PREF: enable hybrid post-quantum key exchange
 // [1] https://pq.cloudflareresearch.com
 // [2] https://github.com/zen-browser/desktop/pull/2275
 //user_pref("security.tls.enable_kyber", true);
 //user_pref("network.http.http3.enable_kyber", true);
 /****************************************************************************
 * SECTION: FINGERPRINT PROTECTION (FPP)                                    *
 ****************************************************************************/
@@ -400,24 +386,28 @@ user_pref("security.tls.enable_0rtt_data", false);
 // [1] https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/3.5/ICC_color_correction_in_Firefox
 //user_pref("browser.display.use_system_colors", false);
 // PREF: enforce non-native widget theme
 // Security: removes/reduces system API calls, e.g. win32k API [1]
 // Fingerprinting: provides a uniform look and feel across platforms [2]
 // [1] https://bugzilla.mozilla.org/1381938
 // [2] https://bugzilla.mozilla.org/1411425
 //user_pref("widget.non-native-theme.enabled", true); // DEFAULT
 /****************************************************************************
 * SECTION: DISK AVOIDANCE                                                  *
 ****************************************************************************/
-// PREF: set media cache in Private Browsing to in-memory
+// PREF: prevent media cache from writing to disk in Private Browsing
 // [NOTE] MSE (Media Source Extensions) are already stored in-memory in PB
 user_pref("browser.privatebrowsing.forceMediaMemoryCache", true);
-// PREF: minimum interval (in ms) between session save operations
+// PREF: set the minimum interval (in milliseconds) between session save operations,
-// Firefox periodically saves the user's session so it can restore
+// when crashing or restarting to install updates
-// their most recent tabs and windows if the browser crashes or restarts.
+// [NOTE] The value is how often FF checks for state changes.
-// The value sets the minimum time between these session save operations.
+// Data is only saved when state changes [2].
 // Firefox only saves session data when the state has changed since the last save [2].
 // Work has been done to mitigate potential performance drawbacks of frequent session saving [3].
 // [1] https://kb.mozillazine.org/Browser.sessionstore.interval
-// [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1304389#c64
+// [2] https://bugzilla.mozilla.org/1304389
-// [3] https://bugzilla.mozilla.org/show_bug.cgi?id=1304389#c66
+user_pref("browser.sessionstore.interval", 60000); // 1 minute; default=15000 (15s)
 user_pref("browser.sessionstore.interval", 60000); // 1 minute; default=15000 (15s); 900000=15 min; 1800000=30 min
 // PREF: store extra session data when crashing or restarting to install updates
 // Dictates whether sites may save extra session data such as form content,
@@ -444,10 +434,10 @@ user_pref("browser.sessionstore.interval", 60000); // 1 minute; default=15000 (1
 //user_pref("browser.pagethumbnails.capturing_disabled", true); // [HIDDEN PREF]
 /******************************************************************************
- * SECTION: SANITIZE HISTORY                                                  *
+ * SECTION: CLEARING DATA DEFAULTS                           *
 ******************************************************************************/
-// PREF: reset default 'Time range to clear' for "Clear Data" and "Clear History"
+// PREF: reset default 'Time range to clear' for 'Clear Recent History'.
 // Firefox remembers your last choice. This will reset the value when you start Firefox.
 // 0=everything, 1=last hour, 2=last two hours, 3=last four hours,
 // 4=today, 5=last five minutes, 6=last twenty-four hours
@@ -455,36 +445,18 @@ user_pref("browser.sessionstore.interval", 60000); // 1 minute; default=15000 (1
 // blank value if they are used, but they do work as advertised.
 //user_pref("privacy.sanitize.timeSpan", 0);
-// PREF: sanitize site data: set manual "Clear Data" items [FF128+]
+// PREF: reset default items to clear with Ctrl-Shift-Del
-// Firefox remembers your last choices. This will reset them when you start Firefox
+// This dialog can also be accessed from the menu History>Clear Recent History
 // [SETTING] Privacy & Security>Browser Privacy>Cookies and Site Data>Clear Data
 //user_pref("privacy.clearSiteData.cache", true);
 //user_pref("privacy.clearSiteData.cookiesAndStorage", false); // keep false until it respects "allow" site exceptions
 //user_pref("privacy.clearSiteData.historyFormDataAndDownloads", true);
    //user_pref("privacy.clearSiteData.siteSettings", false);
 // PREF: sanitize history: set manual "Clear History" items, also via Ctrl-Shift-Del | clearHistory migration is FF128+
 // Firefox remembers your last choices. This will reset them when you start Firefox.
-// [NOTE] Regardless of what you set "downloads" to, as soon as the dialog
+// Regardless of what you set privacy.cpd.downloads to, as soon as the dialog
-// for "Clear Recent History" is opened, it is synced to the same as "history".
+// for "Clear Recent History" is opened, it is synced to the same as 'history'.
-// [SETTING] Privacy & Security>History>Custom Settings>Clear History
+//user_pref("privacy.cpd.history", true); // Browsing & Download History [DEFAULT]
-//user_pref("privacy.cpd.cache", true); // [DEFAULT]
+//user_pref("privacy.cpd.formdata", true); // Form & Search History [DEFAULT]
-//user_pref("privacy.clearHistory.cache", true);
+//user_pref("privacy.cpd.cache", true); // Cache [DEFAULT]
-//user_pref("privacy.cpd.formdata", true); // [DEFAULT]
+//user_pref("privacy.cpd.cookies", true); // Cookies [DEFAULT]
-//user_pref("privacy.cpd.history", true); // [DEFAULT]
+//user_pref("privacy.cpd.sessions", false); // Active Logins [DEFAULT]
-    //user_pref("privacy.cpd.downloads", true); // not used; see note above
+//user_pref("privacy.cpd.offlineApps", false); // Offline Website Data [DEFAULT]
-//user_pref("privacy.clearHistory.historyFormDataAndDownloads", true);
+//user_pref("privacy.cpd.siteSettings", false); // Site Preferences [DEFAULT]
 //user_pref("privacy.cpd.cookies", false);
 //user_pref("privacy.cpd.sessions", true); // [DEFAULT]
 //user_pref("privacy.cpd.offlineApps", false); // [DEFAULT]
 //user_pref("privacy.clearHistory.cookiesAndStorage", false);
    //user_pref("privacy.cpd.openWindows", false); // Session Restore
   //user_pref("privacy.cpd.passwords", false);
   //user_pref("privacy.cpd.siteSettings", false);
   //user_pref("privacy.clearHistory.siteSettings", false);
 // PREF: purge session icon in Private Browsing windows
 user_pref("browser.privatebrowsing.resetPBM.enabled", true);
 /******************************************************************************
 * SECTION: SHUTDOWN & SANITIZING                           *
@@ -506,40 +478,22 @@ user_pref("privacy.history.custom", true);
 // [3] https://github.com/yokoffing/Betterfox/issues/272
 //user_pref("privacy.sanitize.sanitizeOnShutdown", true);
-// PREF: sanitize on shutdown: no site exceptions | v2 migration [FF128+]
+// Uncomment individual prefs to disable clearing on shutdown:
 // [NOTE] If "history" is true, downloads will also be cleared.
-//user_pref("privacy.clearOnShutdown.cache", true); // [DEFAULT]
+// [NOTE] Even if "downloads" pref is enabled, downloads won't be cleared unless "history" is set to true!
 //user_pref("privacy.clearOnShutdown_v2.cache", true); // [FF128+] [DEFAULT]
 //user_pref("privacy.clearOnShutdown.downloads", true); // [DEFAULT]
 //user_pref("privacy.clearOnShutdown.formdata", true);  // [DEFAULT]
 //user_pref("privacy.clearOnShutdown.history", true); // [DEFAULT]
-//user_pref("privacy.clearOnShutdown_v2.historyFormDataAndDownloads", true); // [FF128+] [DEFAULT]
+    //user_pref("privacy.clearOnShutdown.downloads", true);
-    //user_pref("privacy.clearOnShutdown.siteSettings", false); // [DEFAULT]
+//user_pref("privacy.clearOnShutdown.formdata", true); // [DEFAULT]
-    //user_pref("privacy.clearOnShutdown_v2.siteSettings", false); // [FF128+] [DEFAULT]
+//user_pref("privacy.clearOnShutdown.sessions", true); // [DEFAULT]
-
+//user_pref("privacy.clearOnShutdown.offlineApps", true);
-// PREF: set Session Restore to clear on shutdown [FF34+]
+//user_pref("privacy.clearOnShutdown.siteSettings", false); // [DEFAULT]
 // [NOTE] Not needed if Session Restore is not used or it is already cleared with history (2811)
 // [NOTE] However, if true, this pref prevents resuming from crashes.
 //user_pref("privacy.clearOnShutdown.openWindows", true);
 // PREF: sanitize on shutdown: respects allow site exceptions | v2 migration [FF128+]
 // Set cookies, site data, cache, etc. to clear on shutdown.
 // [SETTING] Privacy & Security>History>Custom Settings>Clear history when Firefox closes>Settings
 // [NOTE] "sessions": Active Logins (has no site exceptions): refers to HTTP Basic Authentication [1], not logins via cookies.
 // [NOTE] "offlineApps": Offline Website Data: localStorage, service worker cache, QuotaManager (IndexedDB, asm-cache).
 // Clearing "offlineApps" may affect login items after browser restart.
 // [1] https://en.wikipedia.org/wiki/Basic_access_authentication
 //user_pref("privacy.clearOnShutdown.cookies", true); // Cookies
 //user_pref("privacy.clearOnShutdown.offlineApps", true); // Site Data
 //user_pref("privacy.clearOnShutdown.sessions", true);  // Active Logins [DEFAULT]
 //user_pref("privacy.clearOnShutdown_v2.cookiesAndStorage", true); // Cookies, Site Data, Active Logins [FF128+]
 // PREF: configure site exceptions
-// [NOTE] Currently, there is no way to add sites via about:config.
+// [NOTE] Currently, there is no way to add sites via about:config
-// [SETTING] to add site exceptions: Ctrl+I>Permissions>Cookies>Allow (when on the website in question)
+// [SETTING] to manage site exceptions: Options>Privacy & Security>Cookies & Site Data>Manage Exceptions
-// [SETTING] To manage site exceptions: Options>Privacy & Security>Cookies & Site Data>Manage Exceptions
+// or when on the website in question: Ctrl+I>Permissions>Cookies>Allow 
-// [NOTE] Exceptions: A "cookie" permission also controls "offlineApps" (see note below). For cross-domain logins,
+// For cross-domain logins, add exceptions for both sites:
-// add exceptions for both sites e.g. https://www.youtube.com (site) + https://accounts.google.com (single sign on)
+// e.g. https://www.youtube.com (site) + https://accounts.google.com (single sign on)
 // [WARNING] Be selective with what cookies you keep, as they also disable partitioning [1]
 // [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1767271
@@ -547,9 +501,8 @@ user_pref("privacy.history.custom", true);
 * SECTION: SEARCH / URL BAR                                                 *
 ******************************************************************************/
-// PREF: darken certain parts of the URL [FF75+]
+// PREF: trim certain parts of the URL
 // Makes the domain name more prominent by graying out other parts of the URL.
 // Also hidse https:// and www parts from the suggestion URL.
 // [1] https://udn.realityripple.com/docs/Mozilla/Preferences/Preference_reference/browser.urlbar.trimURLs
 // [2] https://winaero.com/firefox-75-strips-https-and-www-from-address-bar-results/
 //user_pref("browser.urlbar.trimURLs", true); // DEFAULT
@@ -561,25 +514,26 @@ user_pref("privacy.history.custom", true);
 // so it's not like we need to see https. It's not a privacy issue, so you can add to your overrides.
 // [TEST] http://www.http2demo.io/
 // [1] https://www.ghacks.net/2023/09/19/firefox-119-will-launch-with-an-important-address-bar-change/
-user_pref("browser.urlbar.trimHttps", true);
+//user_pref("browser.urlbar.trimHttps", true);
 user_pref("browser.urlbar.untrimOnUserInteraction.featureGate", true);
 // PREF: display "Not Secure" text on HTTP sites
 // Needed with HTTPS-First Policy; not needed with HTTPS-Only Mode.
-//user_pref("security.insecure_connection_text.enabled", true); // [DEFAULT FF136+]
+user_pref("security.insecure_connection_text.enabled", true);
-//user_pref("security.insecure_connection_text.pbmode.enabled", true); // [DEFAULT FF136+]
+user_pref("security.insecure_connection_text.pbmode.enabled", true);
-// PREF: do not show search terms in URL bar [FF110+]
+// PREF: do not show search terms in URL bar [FF110+] [FF113+]
 // Show search query instead of URL on search results pages.
 // [SETTING] Search>Search Bar>Use the address bar for search and navigation>Show search terms instead of URL...
 //user_pref("browser.urlbar.showSearchTerms.enabled", false);
    //user_pref("browser.urlbar.showSearchTerms.featureGate", false); // DEFAULT
 // PREF: enable seperate search engine for Private Windows
 // [SETTINGS] Preferences>Search>Default Search Engine>"Use this search engine in Private Windows"
 user_pref("browser.search.separatePrivateDefault.ui.enabled", true);
 // [SETTINGS] "Choose a different default search engine for Private Windows only"
-    //user_pref("browser.search.separatePrivateDefault", true); // DEFAULT
+//user_pref("browser.search.separatePrivateDefault", true); // DEFAULT
 // enable prompt for searching in a Private Window when using normal browsing window URL bar
 // [1] https://www.reddit.com/r/firefox/comments/yg8jyh/different_private_search_option_gone_firefox_106/
 //user_pref("browser.search.separatePrivateDefault.urlbarResult.enabled", true); // HIDDEN
 // PREF: enable option to add custom search engine
 // [SETTINGS] Settings -> Search -> Search Shortcuts -> Add
@@ -595,18 +549,15 @@ user_pref("browser.urlbar.update2.engineAliasRefresh", true); // HIDDEN
 // [SETTING] Search>Provide search suggestions > Show search suggestions in address bar result
 user_pref("browser.search.suggest.enabled", false);
    //user_pref("browser.search.suggest.enabled.private", false); // DEFAULT
-
+user_pref("browser.urlbar.suggest.searches", false);
 // PREF: disable Show recent searches
 // [SETTING] Search > Search Suggestions > Show recent searches 
 //user_pref("browser.urlbar.suggest.recentsearches", false);
 // PREF: disable Firefox Suggest
 // [1] https://github.com/arkenfox/user.js/issues/1257
-user_pref("browser.urlbar.quicksuggest.enabled", false); // controls whether the UI is shown
+//user_pref("browser.urlbar.quicksuggest.enabled", false); // controls whether the UI is shown
-    //user_pref("browser.urlbar.suggest.quicksuggest.sponsored", false); // [FF92+] 
+user_pref("browser.urlbar.suggest.quicksuggest.sponsored", false);
-    //user_pref("browser.urlbar.suggest.quicksuggest.nonsponsored", false); // [FF95+]
+user_pref("browser.urlbar.suggest.quicksuggest.nonsponsored", false);
 // hide Firefox Suggest label in URL dropdown box
-user_pref("browser.urlbar.groupLabels.enabled", false);
+//user_pref("browser.urlbar.groupLabels.enabled", false);
 // PREF: disable search and form history
 // Be aware that autocomplete form data can be read by third parties [1][2].
@@ -662,10 +613,9 @@ user_pref("network.IDN_show_punycode", true);
 // [4] https://web.dev/why-https-matters/
 // [5] https://www.cloudflare.com/learning/ssl/why-use-https/
 // [6] https://blog.chromium.org/2023/08/towards-https-by-default.html
-// [7] https://attackanddefense.dev/2025/03/31/https-first-in-firefox-136.html
+user_pref("dom.security.https_first", true);
-//user_pref("dom.security.https_first", true); // [DEFAULT FF136+]
+//user_pref("dom.security.https_first_pbm", true); // DEFAULT
-//user_pref("dom.security.https_first_pbm", true); // [DEFAULT FF91+]
+user_pref("dom.security.https_first_schemeless", true); // [FF120+]
 //user_pref("dom.security.https_first_schemeless", true); // [FF120+] [DEFAULT FF129+]
 /******************************************************************************
 * SECTION: HTTPS-ONLY MODE                              *
@@ -693,8 +643,9 @@ user_pref("network.IDN_show_punycode", true);
 //user_pref("dom.security.https_only_mode", true); // Normal + Private Browsing windows
 // PREF: offer suggestion for HTTPS site when available
-// [1] https://x.com/leli_gibts_scho/status/1371463866606059528
+// [1] https://twitter.com/leli_gibts_scho/status/1371463866606059528
-//user_pref("dom.security.https_only_mode_error_page_user_suggestions", true);
+// [TEST] http://speedofanimals.com/
 user_pref("dom.security.https_only_mode_error_page_user_suggestions", true);
 // PREF: HTTP background requests in HTTPS-only Mode
 // When attempting to upgrade, if the server doesn't respond within 3 seconds[=default time],
@@ -720,8 +671,7 @@ user_pref("network.IDN_show_punycode", true);
 // [SETTINGS] Privacy & Security > DNS over HTTPS > Enable secure DNS using:
 // [NOTE] Mode 3 has site-exceptions with a nice UI on the error page.
 // [1] https://hacks.mozilla.org/2018/05/a-cartoon-intro-to-dns-over-https/
-// [2] https://wiki.mozilla.org/Security/DOH-resolver-policy
+// [2] https://support.mozilla.org/en-US/kb/dns-over-https#w_protection-levels-explained
 // [3] https://support.mozilla.org/en-US/kb/dns-over-https#w_protection-levels-explained
 // 0= Default Protection: Firefox decides when to use secure DNS (default)
 // 2= Increased Protection: use DoH and fall back to native DNS if necessary
 // 3= Max Protection: only use DoH; do not fall back to native DNS
@@ -769,9 +719,9 @@ user_pref("network.IDN_show_punycode", true);
 // PREF: assorted options
 //user_pref("network.trr.confirmationNS", "skip"); // skip undesired DOH test connection
-//user_pref("network.trr.skip-AAAA-when-not-supported", true); // [DEFAULT] If Firefox detects that your system does not have IPv6 connectivity, it will not request IPv6 addresses from the DoH server
+//user_pref("network.trr.skip-AAAA-when-not-supported", true); // DEFAULT; If Firefox detects that your system does not have IPv6 connectivity, it will not request IPv6 addresses from the DoH server
-//user_pref("network.trr.clear-cache-on-pref-change", true); // [DEFAULT] DNS+TRR cache will be cleared when a relevant TRR pref changes
+//user_pref("network.trr.clear-cache-on-pref-change", true); // DEFAULT; DNS+TRR cache will be cleared when a relevant TRR pref changes
-//user_pref("network.trr.wait-for-portal", false); // [DEFAULT] set this to true to tell Firefox to wait for the captive portal detection before TRR is used
+//user_pref("network.trr.wait-for-portal", false); // DEFAULT; set this to true to tell Firefox to wait for the captive portal detection before TRR is used
 // PREF: DOH exlcusions
 //user_pref("network.trr.excluded-domains", ""); // DEFAULT; comma-separated list of domain names to be resolved using the native resolver instead of TRR. This pref can be used to make /etc/hosts works with DNS over HTTPS in Firefox.
@@ -843,6 +793,7 @@ user_pref("network.IDN_show_punycode", true);
 // [NOTE] This does not clear any passwords already saved.
 // [SETTING] Privacy & Security>Logins and Passwords>Ask to save logins and passwords for websites
 //user_pref("signon.rememberSignons", false);
    //user_pref("signon.rememberSignons.visibilityToggle", true); // DEFAULT
    //user_pref("signon.schemeUpgrades", true); // DEFAULT
    //user_pref("signon.showAutoCompleteFooter", true); // DEFAULT
    //user_pref("signon.autologin.proxy", false); // DEFAULT
@@ -890,11 +841,10 @@ user_pref("signon.privateBrowsingCapture.enabled", false);
 // PREF: limit (or disable) HTTP authentication credentials dialogs triggered by sub-resources [FF41+]
 // Hardens against potential credentials phishing.
 // [WARNING] Hardening this pref may prevent you from subscribing to SoGo calendars in Thunderbird 138
 // 0=don't allow sub-resources to open HTTP authentication credentials dialogs
 // 1=don't allow cross-origin sub-resources to open HTTP authentication credentials dialogs
 // 2=allow sub-resources to open HTTP authentication credentials dialogs (default)
-// [1] https://web.archive.org/web/20181123134351/https://www.fxsitecompat.com/en-CA/docs/2015/http-auth-dialog-can-no-longer-be-triggered-by-cross-origin-resources/
+// [1] https://www.fxsitecompat.com/en-CA/docs/2015/http-auth-dialog-can-no-longer-be-triggered-by-cross-origin-resources/
 user_pref("network.auth.subresource-http-auth-allow", 1);
 // PREF: prevent password truncation when submitting form data
@@ -921,65 +871,68 @@ user_pref("editor.truncate_user_pastes", false);
 * SECTION: MIXED CONTENT + CROSS-SITE                                       *
 ******************************************************************************/
-// PREF: block insecure passive content (images) on HTTPS pages
+// [TEST] https://mixed-script.badssl.com/
 // [WARNING] This preference blocks all mixed content, including upgradable.
 // Firefox still attempts an HTTP connection if it can't find a secure one,
 // even with HTTPS First Policy. Although rare, this leaves a small risk of
 // a malicious image being served through a MITM attack.
 // Disable this pref if using HTTPS-Only Mode.
 // [NOTE] Enterprise users may need to enable this setting [1].
 // [1] https://blog.mozilla.org/security/2024/06/05/firefox-will-upgrade-more-mixed-content-in-version-127/
 user_pref("security.mixed_content.block_display_content", true);
 // PREF: allow PDFs to load javascript
 // https://www.reddit.com/r/uBlockOrigin/comments/mulc86/firefox_88_now_supports_javascript_in_pdf_files/
 user_pref("pdfjs.enableScripting", false);
 // PREF: disable middle click on new tab button opening URLs or searches using clipboard [FF115+]
 // Enable if you're using LINUX.
 //user_pref("browser.tabs.searchclipboardfor.middleclick", false); // DEFAULT WINDOWS macOS
 // PREF: disable automatic authentication on Microsoft sites [WINDOWS]
 // [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1695693,1719301
 //user_pref("network.http.windows-sso.enabled", false);
-/****************************************************************************
+// PREF: block insecure active content (scripts) on HTTPS pages
- * SECTION: EXTENSIONS                                                      *
+// [1] https://trac.torproject.org/projects/tor/ticket/21323
-****************************************************************************/
+//user_pref("security.mixed_content.block_active_content", true); // DEFAULT
 // PREF: block insecure passive content (images) on HTTPS pages
 // Using HTTPS First Policy, Firefox will still make a HTTP connection
 // if it can't find a secure connection, so this isn't redundant.
 // There's the small chance that someone does a MITM on the images
 // and deploys a malicious image. (They're rare, but possible).
 // [NOTE] You can remove if using HTTPS-Only Mode.
 user_pref("security.mixed_content.block_display_content", true);
 // PREF: upgrade passive content to use HTTPS on secure pages
 // [NOTE] You can remove if using HTTPS-Only Mode.
 user_pref("security.mixed_content.upgrade_display_content", true);
 // [FF119+]:
 //user_pref("security.mixed_content.upgrade_display_content.audio", true); // DEFAULT
 user_pref("security.mixed_content.upgrade_display_content.image", true);
 //user_pref("security.mixed_content.upgrade_display_content.video", true); // DEFAULT
 // PREF: block insecure downloads from secure sites
 // [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1660952
 //user_pref("dom.block_download_insecure", true); // DEFAULT
 // PREF: allow PDFs to load javascript
 // https://www.reddit.com/r/uBlockOrigin/comments/mulc86/firefox_88_now_supports_javascript_in_pdf_files/
 user_pref("pdfjs.enableScripting", false);
 // PREF: limit allowed extension directories
 // 1=profile, 2=user, 4=application, 8=system, 16=temporary, 31=all
 // The pref value represents the sum: e.g. 5 would be profile and application directories.
 // [WARNING] Breaks usage of files which are installed outside allowed directories.
 // [1] https://archive.is/DYjAM
-user_pref("extensions.enabledScopes", 5); // [HIDDEN PREF]
+// 1=profile, 2=user, 4=application, 8=system, 16=temporary, 31=all
-    //user_pref("extensions.autoDisableScopes", 15); // [DEFAULT: 15]
+//user_pref("extensions.enabledScopes", 5); // [HIDDEN PREF] DEFAULT
  // user_pref("extensions.autoDisableScopes", 15); // [DEFAULT: 15]
-// PREF: skip 3rd party panel when installing recommended addons [FF82+]
+// PREF: disable bypassing 3rd party extension install prompts
 // [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1659530,1681331
-//user_pref("extensions.postDownloadThirdPartyPrompt", false);
+user_pref("extensions.postDownloadThirdPartyPrompt", false);
-// PREF: disable mozAddonManager Web API [FF57+]
+// PREF: disable middle click on new tab button opening URLs or searches using clipboard [FF115+]
-// [NOTE] To allow extensions to work on AMO, you also need extensions.webextensions.restrictedDomains.
+// Enable if you're using LINUX.
-// [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1384330,1406795,1415644,1453988
+//user_pref("browser.tabs.searchclipboardfor.middleclick", false); // DEFAULT WINDOWS macOS
 //user_pref("privacy.resistFingerprinting.block_mozAddonManager", true);
-// PREF: disable webextension restrictions on Mozilla domains [FF60+]
+// PREF: enforce TLS 1.0 and 1.1 downgrades as session only
-// [1] https://www.reddit.com/r/firefox/comments/n1lpaf/make_addons_work_on_mozilla_sites/gwdy235/?context=3
+//user_pref("security.tls.version.enable-deprecated", false); // DEFAULT
 // [2] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1384330,1406795,1415644,1453988
 //user_pref("extensions.webextensions.restrictedDomains", "");
-// PREF: do not require signing for extensions [ESR/DEV/NIGHTLY ONLY]
+// PREF: enable (limited but sufficient) window.opener protection
-// [1] https://support.mozilla.org/en-US/kb/add-on-signing-in-firefox#w_what-are-my-options-if-i-want-to-use-an-unsigned-add-on-advanced-users
+// Makes rel=noopener implicit for target=_blank in anchor and area elements when no rel attribute is set.
-//user_pref("xpinstall.signatures.required", false);
+// [1] https://jakearchibald.com/2016/performance-benefits-of-rel-noopener/
 //user_pref("dom.targetBlankNoOpener.enabled", true); // DEFAULT
-// PREF: disable Quarantined Domains [FF115+]
+// PREF: enable "window.name" protection
-// Users may see a notification when running add-ons that are not monitored by Mozilla when they visit certain sites.
+// If a new page from another domain is loaded into a tab, then window.name is set to an empty string. The original
-// The notification informs them that “some extensions are not allowed” and were blocked from running on that site.
+// string is restored if the tab reverts back to the original page. This change prevents some cross-site attacks.
-// There's no details as to which sites are affected.
+//user_pref("privacy.window.name.update.enabled", true); // DEFAULT
 // [1] https://support.mozilla.org/en-US/kb/quarantined-domains
 // [2] https://www.ghacks.net/2023/07/04/firefox-115-new-esr-base-and-some-add-ons-may-be-blocked-from-running-on-certain-sites/
 //user_pref("extensions.quarantinedDomains.enabled", false);
 /******************************************************************************
 * SECTION: HEADERS / REFERERS                                               *
@@ -1051,16 +1004,9 @@ user_pref("privacy.userContext.ui.enabled", true);
 // PREF: set behavior on "+ Tab" button to display container menu on left click [FF74+]
 // [NOTE] The menu is always shown on long press and right click.
-// [SETTING] General>Tabs>Enable Container Tabs>Settings>Select a container for each new tab
+// [SETTING] General>Tabs>Enable Container Tabs>Settings>Select a container for each new tab ***/
 //user_pref("privacy.userContext.newTabContainerOnLeftClick.enabled", true);
 // PREF: set external links to open in site-specific containers [FF123+]
 // Depending on your container extension(s) and their settings:
 // true=Firefox will not choose a container (so your extension can)
 // false=Firefox will choose the container/no-container (default)
 // [1] https://bugzilla.mozilla.org/1874599
    //user_pref("browser.link.force_default_user_context_id_for_external_opens", true);
 /******************************************************************************
 * SECTION: WEBRTC                                                           *
 ******************************************************************************/
@@ -1077,14 +1023,13 @@ user_pref("privacy.userContext.ui.enabled", true);
 //user_pref("privacy.webrtc.globalMuteToggles", true);
 // PREF: force WebRTC inside the proxy [FF70+]
-//user_pref("media.peerconnection.ice.proxy_only_if_behind_proxy", true);
+user_pref("media.peerconnection.ice.proxy_only_if_behind_proxy", true);
 // PREF: force a single network interface for ICE candidates generation [FF42+]
 // When using a system-wide proxy, it uses the proxy interface.
 // [1] https://developer.mozilla.org/en-US/docs/Web/API/RTCIceCandidate
 // [2] https://wiki.mozilla.org/Media/WebRTC/Privacy
-// [3] https://github.com/zen-browser/desktop/issues/972
+user_pref("media.peerconnection.ice.default_address_only", true);
 //user_pref("media.peerconnection.ice.default_address_only", true);
 // PREF: force exclusion of private IPs from ICE candidates [FF51+]
 // [SETUP-HARDEN] This will protect your private IP even in TRUSTED scenarios after you
@@ -1121,6 +1066,12 @@ user_pref("privacy.userContext.ui.enabled", true);
 * SECTION: VARIOUS                                                          *
 ******************************************************************************/
 // PREF: enable FTP protocol
 // Firefox redirects any attempt to load a FTP resource.
 // to the default search engine if the FTP protocol is disabled.
 // [1] https://www.ghacks.net/2018/02/20/firefox-60-with-new-preference-to-disable-ftp/
 //user_pref("network.ftp.enabled", true);
 // PREF: decode URLs in other languages
 // [WARNING] Causes unintended consequences when copy+paste links with underscores.
 // [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1320061
@@ -1130,39 +1081,6 @@ user_pref("privacy.userContext.ui.enabled", true);
 // If this is less than 5, then pasting code into the web console is disabled.
 //user_pref("devtools.selfxss.count", 5);
 // PREF: disable asm.js [FF22+]
 // [WARNING] Disabling this pref may disrupt your browsing experience.
 // [1] http://asmjs.org/
 // [2] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=asm.js
 // [3] https://rh0dev.github.io/blog/2017/the-return-of-the-jit/
 //user_pref("javascript.options.asmjs", false);
 // PREF: disable Ion and baseline JIT to harden against JS exploits
 // [NOTE] When both Ion and JIT are disabled, and trustedprincipals
 // is enabled, then Ion can still be used by extensions [4].
 // [WARNING] Disabling these prefs will disrupt your browsing experience [6].
 // Tor Browser doesn't even ship with these disabled by default.
 // [1] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=firefox+jit
 // [2] https://microsoftedge.github.io/edgevr/posts/Super-Duper-Secure-Mode/
 // [3] https://support.microsoft.com/en-us/microsoft-edge/enhance-your-security-on-the-web-with-microsoft-edge-b8199f13-b21b-4a08-a806-daed31a1929d
 // [4] https://bugzilla.mozilla.org/show_bug.cgi?id=1599226
 // [5] https://wiki.mozilla.org/IonMonkey
 // [6] https://github.com/arkenfox/user.js/issues/1791#issuecomment-1891273681
 //user_pref("javascript.options.ion", false);
 //user_pref("javascript.options.baselinejit", false);
 //user_pref("javascript.options.jit_trustedprincipals", true); // [FF75+] [HIDDEN PREF]
 // PREF: disable WebAssembly [FF52+]
 // [WARNING] Disabling this pref may disrupt your browsing experience.
 // Vulnerabilities [1] have increasingly been found, including those known and fixed
 // in native programs years ago [2]. WASM has powerful low-level access, making
 // certain attacks (brute-force) and vulnerabilities more possible.
 // [STATS] ~0.2% of websites, about half of which are for cryptomining / malvertising [2][3]
 // [1] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=wasm
 // [2] https://spectrum.ieee.org/tech-talk/telecom/security/more-worries-over-the-security-of-web-assembly
 // [3] https://www.zdnet.com/article/half-of-the-websites-using-webassembly-use-it-for-malicious-purposes
 //user_pref("javascript.options.wasm", false);
 /******************************************************************************
 * SECTION: SAFE BROWSING (SB)                                               *
 ******************************************************************************/
@@ -1249,10 +1167,12 @@ user_pref("browser.safebrowsing.downloads.remote.enabled", false);
    //user_pref("identity.fxaccounts.autoconfig.uri", "");
 // PREF: disable Firefox View [FF106+]
 // You can no longer disable Firefox View as of [FF127+].
 // To hide the icon from view, see [2].
 // [1] https://support.mozilla.org/en-US/kb/how-set-tab-pickup-firefox-view#w_what-is-firefox-view
-// [2] https://support.mozilla.org/en-US/kb/how-set-tab-pickup-firefox-view#w_how-do-i-remove-firefox-view-from-the-tabs-bar
+//user_pref("browser.tabs.firefox-view", false);
 //user_pref("browser.tabs.firefox-view-next", false); // [FF119+]
 //user_pref("browser.tabs.firefox-view-newIcon", false); // [FF119+]
    //user_pref("browser.firefox-view.search.enabled", false); // [FF122+]
    //user_pref("browser.firefox-view.virtual-list.enabled", false); // [FF122+]
 // PREF: disable the Firefox View tour from popping up
 //user_pref("browser.firefox-view.feature-tour", "{\"screen\":\"\",\"complete\":true}");
@@ -1273,25 +1193,19 @@ user_pref("browser.safebrowsing.downloads.remote.enabled", false);
 // To add site exceptions: Page Info>Permissions>Receive Notifications
 // To manage site exceptions: Options>Privacy & Security>Permissions>Notifications>Settings
 // 0=always ask (default), 1=allow, 2=block
 // [1] https://easylinuxtipsproject.blogspot.com/p/security.html#ID5
 // [2] https://github.com/yokoffing/Betterfox/wiki/Common-Overrides#site-notifications
 user_pref("permissions.default.desktop-notification", 2);
 // PREF: default permission for Location Requests
 // 0=always ask (default), 1=allow, 2=block
 user_pref("permissions.default.geo", 2);
-// PREF: use alternative geolocation service instead of Google
+// PREF: use Mozilla geolocation service instead of Google when geolocation is enabled
-// [NOTE] Mozilla's geolocation service was discontinued in June 2024 [1].
+user_pref("geo.provider.network.url", "https://location.services.mozilla.com/v1/geolocate?key=%MOZILLA_API_KEY%");
 // BeaconDB is its replacement.
 // [1] https://github.com/mozilla/ichnaea/issues/2065
 // [2] https://codeberg.org/beacondb/beacondb
 // [3] https://github.com/yokoffing/Betterfox/issues/378
 user_pref("geo.provider.network.url", "https://beacondb.net/v1/geolocate");
 // PREF: disable using the OS's geolocation service
 //user_pref("geo.provider.ms-windows-location", false); // [WINDOWS]
 //user_pref("geo.provider.use_corelocation", false); // [MAC]
 //user_pref("geo.provider.use_gpsd", false); // [LINUX] broken on Linux?
 //user_pref("geo.provider.use_geoclue", false); // [FF102+] [LINUX]
 // PREF: logging geolocation to the console
@@ -1317,20 +1231,38 @@ user_pref("geo.provider.network.url", "https://beacondb.net/v1/geolocate");
 //user_pref("extensions.update.enabled", false);
 // PREF: disable search engine updates (e.g. OpenSearch)
 // Prevent Firefox from adding back search engines after you removed them.
 // [NOTE] This does not affect Mozilla's built-in or Web Extension search engines.
-user_pref("browser.search.update", false);
+//user_pref("browser.search.update", false);
-// PREF: remove special permissions for certain mozilla domains [FF35+]
+// PREF: remove special permissions for certain mozilla domains
 // default = resource://app/defaults/permissions
-user_pref("permissions.manager.defaultsUrl", "");
+//user_pref("permissions.manager.defaultsUrl", "");
 // PREF: remove webchannel whitelist
-//user_pref("webchannel.allowObject.urlWhitelist", ""); // [DEFAULT FF132+]
+user_pref("webchannel.allowObject.urlWhitelist", "");
-// PREF: disable metadata caching for installed add-ons by default
+// PREF: disable mozAddonManager Web API [FF57+]
-// [1] https://blog.mozilla.org/addons/how-to-opt-out-of-add-on-metadata-updates/
+// [NOTE] To allow extensions to work on AMO, you also need extensions.webextensions.restrictedDomains.
-user_pref("extensions.getAddons.cache.enabled", false);
+// [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1384330,1406795,1415644,1453988
 //user_pref("privacy.resistFingerprinting.block_mozAddonManager", true); // [HIDDEN PREF FF57-108]
 // PREF: disable webextension restrictions on Mozilla domains
 // [NOTE] May only work with PREF: privacy.resistfingerprinting enabled and/or DEV/NIGHTLY-only?
 // [1] https://www.reddit.com/r/firefox/comments/n1lpaf/make_addons_work_on_mozilla_sites/gwdy235/?context=3
 // [2] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1384330,1406795,1415644,1453988
 //user_pref("extensions.webextensions.restrictedDomains", "");
 // PREF: do not require signing for extensions [ESR/DEV/NIGHTLY ONLY]
 // [1] https://support.mozilla.org/en-US/kb/add-on-signing-in-firefox#w_what-are-my-options-if-i-want-to-use-an-unsigned-add-on-advanced-users
 //user_pref("xpinstall.signatures.required", false);
 // PREF: disable Quarantined Domains [FF115+]
 // Users may see a notification when running add-ons that are not monitored by Mozilla when they visit certain sites.
 // The notification informs them that “some extensions are not allowed” and were blocked from running on that site.
 // There's no details as to which sites are affected.
 // [1] https://support.mozilla.org/en-US/kb/quarantined-domains
 // [2] https://www.ghacks.net/2023/07/04/firefox-115-new-esr-base-and-some-add-ons-may-be-blocked-from-running-on-certain-sites/
 //user_pref("extensions.quarantinedDomains.enabled", false);
 /******************************************************************************
 * SECTION: TELEMETRY                                                   *
@@ -1350,7 +1282,7 @@ user_pref("datareporting.healthreport.uploadEnabled", false);
 // - If "unified" is true then "enabled" only controls whether to record extended data
 // [NOTE] "toolkit.telemetry.enabled" is now LOCKED to reflect prerelease (true) or release builds (false) [2]
 // [1] https://firefox-source-docs.mozilla.org/toolkit/components/telemetry/telemetry/internals/preferences.html
-// [2] https://medium.com/georg-fritzsche/data-preference-changes-in-firefox-58-2d5df9c428b5
+// [2] https://medium.com/georg-fritzsche/data-preference-changes-in-firefox-58-2d5df9c428b5 ***/
 user_pref("toolkit.telemetry.unified", false);
 user_pref("toolkit.telemetry.enabled", false); // see [NOTE]
 user_pref("toolkit.telemetry.server", "data:,");
@@ -1372,9 +1304,6 @@ user_pref("toolkit.coverage.endpoint.base", "");
 user_pref("browser.newtabpage.activity-stream.feeds.telemetry", false);
 user_pref("browser.newtabpage.activity-stream.telemetry", false);
 // PREF: disable daily active users [FF136+]
 user_pref("datareporting.usage.uploadEnabled", false);
 /******************************************************************************
 * SECTION: EXPERIMENTS                                                      *
 ******************************************************************************/
@@ -1400,32 +1329,22 @@ user_pref("browser.tabs.crashReporting.sendReport", false);
 // PREF: enforce no submission of backlogged crash reports
 // [SETTING] Privacy & Security>Firefox Data Collection & Use>Allow Firefox to send backlogged crash reports
-//user_pref("browser.crashReports.unsubmittedCheck.autoSubmit2", false); // [DEFAULT FF132+]
+user_pref("browser.crashReports.unsubmittedCheck.autoSubmit2", false);
 /******************************************************************************
 * SECTION: DETECTION                                                        *
 ******************************************************************************/
 // PREF: disable Captive Portal detection
 // [WARNING] Do NOT use for mobile devices. May NOT be able to use Firefox on public wifi (hotels, coffee shops, etc).
 // [1] https://www.eff.org/deeplinks/2017/08/how-captive-portals-interfere-wireless-security-and-privacy
 // [2] https://wiki.mozilla.org/Necko/CaptivePortal
-//user_pref("captivedetect.canonicalURL", "");
+user_pref("captivedetect.canonicalURL", "");
-//user_pref("network.captive-portal-service.enabled", false);
+user_pref("network.captive-portal-service.enabled", false);
 // PREF: disable Network Connectivity checks
 // [WARNING] Do NOT use for mobile devices. May NOT be able to use Firefox on public wifi (hotels, coffee shops, etc).
 // [1] https://bugzilla.mozilla.org/1460537
-//user_pref("network.connectivity-service.enabled", false);
+user_pref("network.connectivity-service.enabled", false);
 // PREF: disable Privacy-Preserving Attribution [FF128+]
 // [NOTE] PPA disabled if main telemetry switches are disabled.
 // [SETTING] Privacy & Security>Website Advertising Preferences>Allow websites to perform privacy-preserving ad measurement
 // [1] https://support.mozilla.org/kb/privacy-preserving-attribution
 // [2] https://searchfox.org/mozilla-central/rev/f3e4b33a6122ce63bf81ae8c30cc5ac37458864b/dom/privateattribution/PrivateAttributionService.sys.mjs#267
 //user_pref("dom.private-attribution.submission.enabled", false);
    //user_pref("toolkit.telemetry.dap_helper", ""); // [OPTIONAL HARDENING]
    //user_pref("toolkit.telemetry.dap_leader", ""); // [OPTIONAL HARDENING]
 // PREF: software that continually reports what default browser you are using [WINDOWS]
 // [WARNING] Breaks "Make Default..." button in Preferences to set Firefox as the default browser [2].
@@ -1438,10 +1357,12 @@ user_pref("browser.tabs.crashReporting.sendReport", false);
 // PREF: SERP Telemetry [FF125+]
 // [1] https://blog.mozilla.org/en/products/firefox/firefox-search-update/
 //user_pref("browser.search.serpEventTelemetry.enabled", false); // [removed in FF128?]
 //user_pref("browser.search.serpEventTelemetryCategorization.enabled", false);
 // PREF: assorted telemetry
-// [NOTE] Shouldn't be needed for user.js, but browser forks may want to disable these prefs.
+// [NOTE] Shouldn't be needed for user.js, but browser forks
 // may want to disable these prefs.
 //user_pref("doh-rollout.disable-heuristics", true); // ensure DoH doesn't get enabled automatically
 //user_pref("dom.security.unexpected_system_load_telemetry_enabled", false);
 //user_pref("messaging-system.rsexperimentloader.enabled", false);
@@ -1451,5 +1372,7 @@ user_pref("browser.tabs.crashReporting.sendReport", false);
 //user_pref("security.certerrors.recordEventTelemetry", false);
 //user_pref("security.protectionspopup.recordEventTelemetry", false);
 //user_pref("signon.recipes.remoteRecipes.enabled", false);
 //user_pref("security.identitypopup.recordEventTelemetry", false); // ESR only; removed FF116+ [1]
 // [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1837979
 //user_pref("privacy.trackingprotection.emailtracking.data_collection.enabled", false);
 //user_pref("messaging-system.askForFeedback", true); // DEFAULT [FF120+]
@@ -3,7 +3,7 @@
 * Smoothfox                                                                            *
 * "Faber est suae quisque fortunae"                                                    *
 * priority: better scrolling                                                           *
- * version: 137                                                                       *
+ * version: 126                                                                         *
 * url: https://github.com/yokoffing/Betterfox                                          *
 ***************************************************************************************/
@@ -17,7 +17,7 @@
 // only sharpen scrolling
 user_pref("apz.overscroll.enabled", true); // DEFAULT NON-LINUX
 user_pref("general.smoothScroll", true); // DEFAULT
-user_pref("mousewheel.min_line_scroll_amount", 10); // adjust this number to your liking; default=5
+user_pref("mousewheel.min_line_scroll_amount", 10); // 10-40; adjust this number to your liking; default=5
 user_pref("general.smoothScroll.mouseWheel.durationMinMS", 80); // default=50
 user_pref("general.smoothScroll.currentVelocityWeighting", "0.15"); // default=.25
 user_pref("general.smoothScroll.stopDecelerationWeighting", "0.6"); // default=.4
@@ -58,8 +58,8 @@ user_pref("general.smoothScroll.msdPhysics.enabled", true);
 user_pref("general.smoothScroll.msdPhysics.motionBeginSpringConstant", 600);
 user_pref("general.smoothScroll.msdPhysics.regularSpringConstant", 650);
 user_pref("general.smoothScroll.msdPhysics.slowdownMinDeltaMS", 25);
-user_pref("general.smoothScroll.msdPhysics.slowdownMinDeltaRatio", "2");
+user_pref("general.smoothScroll.msdPhysics.slowdownMinDeltaRatio", 2);
 user_pref("general.smoothScroll.msdPhysics.slowdownSpringConstant", 250);
-user_pref("general.smoothScroll.currentVelocityWeighting", "1");
+user_pref("general.smoothScroll.currentVelocityWeighting", 1);
-user_pref("general.smoothScroll.stopDecelerationWeighting", "1");
+user_pref("general.smoothScroll.stopDecelerationWeighting", 1);
 user_pref("mousewheel.default.delta_multiplier_y", 300); // 250-400; adjust this number to your liking
@@ -1,287 +0,0 @@
 #!/usr/bin/env python3
 from datetime import datetime
 from os import name, getenv
 from json import loads
 from re import compile, IGNORECASE, sub
 from pathlib import Path
 from configparser import ConfigParser
 from argparse import ArgumentParser
 from shutil import copytree, ignore_patterns
 from urllib.request import urlopen
 from subprocess import check_output
 from io import BytesIO
 from zipfile import ZipFile
 """
 install(-betterfox).py
 Usage:
    python install.py
 When called without arguments, it will:
 - Backup your current firefox profile
 - Automatically download user.js from the latest Betterfox release compatible with your Firefox version into the profile
 - Apply user-overrides in the same directory 
 However, you can check out install.py/betterfox-install.exe --help to customise most behaviours!
 Limitations:
 - When using a different repositoy as a source, that repository needs to use the same releases workflow
 - Over time, the get_releases might not list older releases due to limited page size. This can be expanded down the road, though
 Building into an exe (on Windows):
 - pipx install pyinstaller  (note: you can try without pipx, but this didn't work for me)
 - Run:
  - CMD:  `pyinstaller --onefile --name install-betterfox install.py && move %cd%\\dist\\install-betterfox.exe %cd% && del install-betterfox.spec && rmdir /S /Q build && rmdir dist`
  - BASH: `pyinstaller --onefile --name install-betterfox install.py && && mv dist/install-betterfox.exe . && rm install-betterfox.spec && rm -rf ./build/ && rmdir dist`
  (Sorry, didn't want to add a .gitignore solely for the install script)
 - Done!
 If there's any problems with the script, feel free to mention @Denperidge on GitHub!
 """
 re_find_version = compile(r"mozilla.org/.*?/firefox/(?P<version>[\d.]*?)/", IGNORECASE)
 re_find_overrides = r"(overrides|prefs).*\n(?P<space>\n)"
 INSTALLATIONS_TO_CHECK = [
    # windows
    {
        "command": [str(Path("C:/Program Files/Mozilla Firefox/firefox"))],
        "root": Path(getenv("APPDATA") or "").joinpath("Mozilla/Firefox").resolve(),
    },
    # linux
    {
        "command": ["firefox"],
        "root": Path.home().joinpath(".mozilla/firefox").absolute(),
    },
    # flatpak
    {
        "command": ["flatpak", "run", "org.mozilla.firefox"],
        "root": Path.home().joinpath(".var/app/org.mozilla.firefox/.mozilla/firefox").absolute(),
    },
 ]
 # command is a list, eg. ["firefox"] or ["flatpak", "run", "org.mozilla.firefox"]
 def _get_firefox_version(command):
    ver_string = check_output(command + ["--version"], encoding="UTF-8")
    return ver_string[ver_string.rindex(" ")+1:].strip()
 def _get_default_firefox_version_and_root():
    print("Searching for Firefox installation...")
    for installation in INSTALLATIONS_TO_CHECK:
        try:
            print(f"  '{" ".join(installation["command"])}': ", end="")
            version = _get_firefox_version(installation["command"])
            print("YES")
            print(f"Root: {installation["root"]}")
            return version, installation["root"]
        except Exception:
            print("no")
            continue
    raise Exception("Firefox binary not found. Please ensure Firefox is installed and the path is correct.")
 def _get_default_profile_folder(firefox_root):
    config_path = firefox_root.joinpath("profiles.ini")
    print(f"Reading {config_path}...")
    config_parser = ConfigParser(strict=False)
    config_parser.read(config_path)
    path = None
    for section in config_parser.sections():
        if "Default" in config_parser[section]:
            section_default_value = config_parser[section]["Default"]
            if section_default_value:
                print("Default detected from section: " + section)
                # Confirm whether a 0 value is possible, keep fallback until then                 
                if section_default_value == "0":
                    continue
                if section_default_value == "1":
                    path = config_parser[section]["Path"]
                else:
                    path = section_default_value
                break
    if path is not None:
        return firefox_root.joinpath(path)
    else:
        raise Exception("Could not determine default Firefox profile! Exiting...")
 def _get_releases(repository_owner, repository_name):
    releases = []
    raw_releases = loads(urlopen(f"https://api.github.com/repos/{repository_owner}/{repository_name}/releases").read())
    for raw_release in raw_releases:
        name = raw_release["name"] or raw_release["tag_name"]  # or fixes 126.0 not being lodaded
        body = raw_release["body"]
        # Find which firefox releases are supported. Manual overrides for ones that don't have it written in their thing!
        if name == "user.js v.122.1":
            supported = ["107.0", "107.1", "108.0", "108.0.1", "108.0.2", "109.0", "109.0", "110.1", "110.0.1", "111.0", "111.0.1", "112.0", "112.0.1", "112.0.2", "113.0", "113.0.1", "113.0.2", "114.0", "114.0.1", "114.0.2", "115.0", "115.0.1", "115.0.2", "115.0.3", "115.1.0", "115.10.0", "115.11.0", "115.12.0", "115.13.0", "115.14.0", "115.15.0", "115.16.0", "115.16.1", "115.17.0", "115.2.0", "115.2.1", "115.3.0", "115.3.1", "115.4.0", "115.5.0", "115.6.0", "115.7.0", "115.8.0", "115.9.0", "115.9.1", "116.0", "116.0.1", "116.0.2", "116.0.3", "117.0", "117.0.1", "118.0", "118.0.1", "118.0.2", "119.0", "119.0.1", "120.0", "120.0.1", "121.0", "121.0.1", "122.0", "122.0.1"]
        elif name == "user.js 116.1":
            supported = ["116.0", "116.0.1", "116.0.2", "116.0.3"]
        elif name == "Betterfox v.107":
            supported = ["107.0"]
        elif "firefox release" in body.lower():
            trim_body = body.lower()[body.lower().index("firefox release"):]
            supported = re_find_version.findall(trim_body)
            if len(supported) == 0:
                print(f"Could not parse release in '{name}'. Please post this error message on https://github.com/{repository_owner}/{repository_name}/issues")
                continue
        else:
            print(f"Could not find firefox release header '{name}'. Please post this error message on https://github.com/{repository_owner}/{repository_name}/issues")
            continue
        releases.append({
            "name": name,
            "url": raw_release["zipball_url"],
            "supported": supported,
        })
    return releases
 def _get_latest_compatible_release(releases):
    for release in releases:
        if firefox_version in release["supported"]:
            return release
    return None
 def backup_profile(src):
    dest = f"{src}-backup-{datetime.today().strftime('%Y-%m-%d-%H-%M-%S')}"
    copytree(src, dest, ignore=ignore_patterns("*lock"))
    print("Backed up profile to " + dest)
 def download_betterfox(url):
    data = BytesIO()
    data.write(urlopen(url).read())
    return data  
 def extract_betterfox(data, profile_folder):
    zipfile = ZipFile(data)
    userjs_zipinfo = None
    for file in zipfile.filelist:
        if file.filename.endswith("user.js"):
            userjs_zipinfo = file
            userjs_zipinfo.filename = Path(userjs_zipinfo.filename).name
    if not userjs_zipinfo:
        raise BaseException("Could not find user.js!")
    return zipfile.extract(userjs_zipinfo, profile_folder)
 def list_releases(releases, only_supported=False, add_index=False):
    print()
    print(f"Listing {'compatible' if only_supported else 'all'} Betterfox releases:")
    if only_supported:
        print("Use --list-all to view all available releases")
    else:
        print(f"Releases marked with '> ' are documented to be compatible with your Firefox version ({firefox_version})")
    print()
    i = 0
    for release in releases:
        supported = firefox_version in release["supported"]
        if not only_supported or (only_supported and supported):
            print(f"{f'[{i}]' if add_index else ''}{'> ' if supported else '  '}{release['name'].ljust(20)}\t\t\tSupported: {','.join(release['supported'])}")
        i+=1
 def _press_enter_to_exit(args):
    if not args.no_wait_for_exit:
        input("Press ENTER to exit...")
 if __name__ == "__main__":
    firefox_version, firefox_root = _get_default_firefox_version_and_root()
    default_profile_folder = _get_default_profile_folder(firefox_root)
    argparser = ArgumentParser(
    )
    argparser.add_argument("--overrides", "-o", default=default_profile_folder.joinpath("user-overrides.js"), help="if the provided file exists, add overrides to user.js. Defaults to " + str(default_profile_folder.joinpath("user-overrides.js"))),
    advanced = argparser.add_argument_group("Advanced")
    advanced.add_argument("--betterfox-version", "-bv", default=None, help=f"Which version of Betterfox to install. Defaults to the latest compatible release for your installed Firefox version")
    advanced.add_argument("--profile-dir", "-p", "-pd", default=default_profile_folder, help=f"Which profile dir to install user.js in. Defaults to {default_profile_folder}")
    advanced.add_argument("--repository-owner", "-ro", default="yokoffing", help="owner of the Betterfox repository. Defaults to yokoffing")
    advanced.add_argument("--repository-name", "-rn", default="Betterfox", help="name of the Betterfox repository. Defaults to Betterfox")
    disable = argparser.add_argument_group("Disable functionality")
    disable.add_argument("--no-backup", "-nb", action="store_true", default=False, help="disable backup of current profile (not recommended)"),
    disable.add_argument("--no-install", "-ni", action="store_true", default=False, help="don't install Betterfox"),
    modes = argparser.add_mutually_exclusive_group()
    modes.add_argument("--list", action="store_true", default=False, help=f"List all Betterfox releases compatible with your version of Firefox ({firefox_version})")
    modes.add_argument("--list-all", action="store_true", default=False, help=f"List all Betterfox releases")
    modes.add_argument("--interactive", "-i", action="store_true", default=False, help=f"Interactively select Betterfox version")
    behaviour = argparser.add_argument_group("Script behaviour")
    behaviour.add_argument("--no-wait-for-exit", "-nwfe", action="store_true", default=False, help="Disable 'Press ENTER to exit...' and exit immediately"),
    args = argparser.parse_args()
    releases = _get_releases(args.repository_owner, args.repository_name)
    selected_release = None
    if args.list or args.list_all:
        list_releases(releases, args.list)
        _press_enter_to_exit(args)
        exit()
    if not args.no_backup:
        backup_profile(args.profile_dir)
    if args.betterfox_version:
        # If not None AND not string, default value has been used
        if not isinstance(args.betterfox_version, str):
            selected_release = args.betterfox_version
            print(f"Using latest compatible Betterfox version ({selected_release['name']})...")
        # If string has been passed
        else:
            selected_release = next(rel for rel in releases if rel['name'] == args.betterfox_version)
            print(f"Using manually selected Betterfox version ({selected_release['name']})")
    if not args.betterfox_version:
        selected_release = _get_latest_compatible_release(releases)
    if args.interactive or not selected_release:
        if not selected_release:
            print("Could not find a compatible Betterfox version for your Firefox installation.")
        list_releases(releases, False, True)
        selection = int(input(f"Select Betterfox version, or press enter without typing a number to cancel [0-{len(releases) - 1}]: "))
        selected_release = releases[selection]
    if not args.no_install:
        userjs_path = extract_betterfox(
            download_betterfox(selected_release["url"]),
            args.profile_dir
        )
        print(f"Installed user.js to {userjs_path} !")
        if Path(args.overrides).exists():
            print("Found overrides at " + str(args.overrides))
            with open(str(args.overrides), "r", encoding="utf-8") as overrides_file:
                overrides = overrides_file.read()
            with open(userjs_path, "r", encoding="utf-8") as userjs_file:
                old_content = userjs_file.read()
                new_content = sub(re_find_overrides, "\n" + overrides + "\n", old_content, count=1, flags=IGNORECASE)
            with open(userjs_path, "w", encoding="utf-8") as userjs_file:
                userjs_file.write(new_content)
        else:
            print(f"Found no overrides in {args.overrides}")
    _press_enter_to_exit(args)
@@ -0,0 +1,114 @@
 //
 /* You may copy+paste this file and use it as it is.
 *
 * If you make changes to your about:config while the program is running, the
 * changes will be overwritten by this file when the application restarts.
 *
 * To make lasting changes to preferences, you will have to edit this file.
 */
 /****************************************************************************
 * Betterfox - LibreWolf overrides                                          *
 * Quis custodiet ipsos custodes                                            *
 * version: August 2023                                                     *
 * url: https://github.com/yokoffing/Betterfox                              *
 * license: https://github.com/yokoffing/Betterfox/blob/main/LICENSE        *
 * README: https://github.com/yokoffing/Betterfox/blob/main/README.md       *
 ****************************************************************************/
 // Better off just using a user.js file:
 // [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/41963
 // [2] https://github.com/arkenfox/user.js/issues/1695#issuecomment-1666505218
 // Where do I find my librewolf.overrides.cfg? https://librewolf.net/docs/settings/#where-do-i-find-my-librewolfoverridescfg
 // LibreWolf default prefs: https://gitlab.com/librewolf-community/settings/-/blob/master/librewolf.cfg
 /****************************************************************************
 * SECTION: FASTFOX                                                         *
 ****************************************************************************/
 defaultPref("layout.css.grid-template-masonry-value.enabled", true);
 defaultPref("dom.enable_web_task_scheduling", true);
 /****************************************************************************
 * SECTION: SECUREFOX                                                       *
 ****************************************************************************/
 /** TRACKING PROTECTION ***/
 defaultPref("urlclassifier.trackingSkipURLs", "*.reddit.com, *.twitter.com, *.twimg.com");
 defaultPref("urlclassifier.features.socialtracking.skipURLs", "*.instagram.com, *.twitter.com, *.twimg.com");
 /** OCSP & CERTS / HPKP ***/
 // Use CRLite instead of OCSP
 defaultPref("security.OCSP.enabled", 0);
 defaultPref("security.OCSP.require", false);
 defaultPref("security.pki.crlite_mode", 2);
 /** RFP ***/
 // Limits refresh rate to 60mHz, breaks timezone, and forced light theme
 // [1] https://librewolf.net/docs/faq/#what-are-the-most-common-downsides-of-rfp-resist-fingerprinting
 defaultPref("privacy.resistFingerprinting", false);
 // WebGL
 // Breaks Map sites, NYT articles, Nat Geo, and more
 // [1] https://manu.ninja/25-real-world-applications-using-webgl/
 defaultPref("webgl.disabled", false);
 // DRM
 // Netflix, Udemy, Spotify, etc.
 defaultPref("media.eme.enabled", true);
 /** HTTPS-ONLY MODE ***/
 defaultPref("dom.security.https_only_mode_error_page_user_suggestions", true);
 /** PASSWORDS AND AUTOFILL ***/
 defaultPref("signon.generation.enabled", false);
 /** WEBRTC ***/
 // Breaks video conferencing
 defaultPref("media.peerconnection.ice.no_host", false);
 /** PERMISSIONS ***/
 defaultPref("permissions.default.geo", 2);
 defaultPref("permissions.default.desktop-notification", 2);
 defaultPref("dom.push.enabled", false);
 /****************************************************************************
 * SECTION: PESKYFOX                                                        *
 ****************************************************************************/
 /** MOZILLA UI ***/
 defaultPref("layout.css.prefers-color-scheme.content-override", 2);
 defaultPref("toolkit.legacyUserProfileCustomizations.stylesheets", true);
 defaultPref("browser.compactmode.show", true);
 /** FULLSCREEN ***/
 defaultPref("full-screen-api.transition-duration.enter", "0 0");
 defaultPref("full-screen-api.transition-duration.leave", "0 0");
 defaultPref("full-screen-api.warning.delay", 0);
 defaultPref("full-screen-api.warning.timeout", 0);
 /** URL BAR ***/
 defaultPref("browser.urlbar.suggest.engines", false);
 defaultPref("browser.urlbar.suggest.topsites", false);
 defaultPref("browser.urlbar.suggest.calculator", true);
 defaultPref("browser.urlbar.unitConversion.enabled", true);
 /** AUTOPLAY ***/
 // Default breaks some video players
 defaultPref("media.autoplay.blocking_policy", 0);
 /** PASSWORDS ***/
 defaultPref("editor.truncate_user_pastes", false);
 /** DOWNLOADS ***/
 defaultPref("browser.download.autohideButton", true);
 /** PDF ***/
 defaultPref("browser.download.open_pdf_attachments_inline", true);
 /** TAB BEHAVIOR ***/
 defaultPref("browser.tabs.loadBookmarksInTabs", true);
 defaultPref("browser.bookmarks.openInTabClosesMenu", false);
 defaultPref("findbar.highlightAll", true);
 /****************************************************************************
 * END: BETTERFOX                                                           *
 ****************************************************************************/
@@ -19,29 +19,22 @@
 /** FASTFOX ***/
 user_pref("browser.sessionstore.restore_pinned_tabs_on_demand", true);
-
+user_pref("browser.sessionhistory.max_total_viewers", 4); // only remember # of pages in Back-Forward cache
 // SPECULATIVE LOADING WITHOUT PREDICTOR
 user_pref("network.http.speculative-parallel-limit", 20);
 //user_pref("network.dns.disablePrefetch", false);
 //user_pref("network.dns.disablePrefetchFromHTTPS", false);
 //user_pref("dom.prefetch_dns_for_anchor_https_document", true); 
 user_pref("browser.urlbar.speculativeConnect.enabled", true);
 user_pref("browser.places.speculativeConnect.enabled", true);
 user_pref("network.prefetch-next", true);
 user_pref("network.http.max-persistent-connections-per-server", 20); // increase download connections
 /** SECUREFOX ***/
 //user_pref("urlclassifier.features.socialtracking.skipURLs", "*.twitter.com, *.twimg.com"); // removed *.instagram.com
 user_pref("signon.rememberSignons", false); // disable password manager
 user_pref("extensions.formautofill.addresses.enabled", false); // disable address manager
 user_pref("extensions.formautofill.creditCards.enabled", false); // disable credit card manager
 user_pref("browser.urlbar.suggest.recentsearches", false);  // unselect "Show recent searches" for clean UI
 user_pref("browser.urlbar.showSearchSuggestionsFirst", false); // unselect "Show search suggestions ahead of browsing history in address bar results" for clean UI
-//user_pref("browser.urlbar.groupLabels.enabled", false); // hide Firefox Suggest label in URL dropdown box
+//user_pref("browser.urlbar.suggest.trending", false); // FF119+ disable showing trending searches; unselect for clean UI
 user_pref("browser.urlbar.groupLabels.enabled", false); // hide Firefox Suggest label in URL dropdown box
 user_pref("signon.management.page.breach-alerts.enabled", false); // extra hardening
 user_pref("signon.autofillForms", false); // unselect "Autofill logins and passwords" for clean UI
 user_pref("signon.generation.enabled", false); // unselect "Suggest and generate strong passwords" for clean UI
 user_pref("signon.firefoxRelay.feature", ""); // unselect suggestions from Firefox Relay for clean UI
 //user_pref("privacy.sanitize.sanitizeOnShutdown", true); // clear browsing data on shutdown
 //user_pref("privacy.clearOnShutdown.offlineApps", true); // clear Site Data on shutdown
 user_pref("browser.safebrowsing.downloads.enabled", false); // deny SB to scan downloads to identify suspicious files; local checks only
 user_pref("browser.safebrowsing.downloads.remote.url", ""); // enforce no remote checks for downloads by SB
 user_pref("browser.safebrowsing.downloads.remote.block_potentially_unwanted", false); // clean up UI; not needed in user.js if remote downloads are disabled
@@ -51,11 +44,16 @@ user_pref("browser.search.update", false); // do not update opensearch engines
 user_pref("network.trr.confirmationNS", "skip"); // skip TRR confirmation request
 user_pref("extensions.webextensions.restrictedDomains", ""); // remove Mozilla domains so adblocker works on pages
 user_pref("identity.fxaccounts.enabled", false); // disable Firefox Sync
 user_pref("browser.tabs.firefox-view", false); // disable Firefox View
 user_pref("browser.tabs.firefox-view-next", false); // disable Firefox View [FF119+]
 user_pref("browser.firefox-view.feature-tour", "{\"screen\":\"\",\"complete\":true}"); // disable the Firefox View tour from popping up for new profiles
 user_pref("accessibility.force_disabled", 1); // disable Accessibility features
 //user_pref("security.ssl.require_safe_negotiation", true); // safe negotiation
 user_pref("security.cert_pinning.enforcement_level", 2); // strict public key pinning
 user_pref("browser.download.useDownloadDir", true); // one-click downloads
 /** PESKYFOX ***/
 user_pref("cookiebanners.service.mode", 2); // fall back to the accept button to remove banner
 user_pref("devtools.accessibility.enabled", false); // removes un-needed "Inspect Accessibility Properties" on right-click
 user_pref("browser.newtabpage.activity-stream.showSponsoredTopSites", false); // Settings>Home>Firefox Home Content>Recent Activity>Shortcuts>Sponsored shortcuts
 user_pref("browser.newtabpage.activity-stream.showSponsored", false); // Settings>Home>Firefox Home Content>Recent Activity>Recommended by Pocket>Sponsored Stories  
@@ -63,8 +61,8 @@ user_pref("browser.newtabpage.activity-stream.section.highlights.includeBookmark
 user_pref("browser.newtabpage.activity-stream.section.highlights.includeDownloads", false); // Settings>Home>Firefox Home Content>Recent Activity>Most Recent Download
 user_pref("browser.newtabpage.activity-stream.section.highlights.includeVisited", false); // Settings>Home>Firefox Home Content>Recent Activity>Visited Pages
 user_pref("browser.newtabpage.activity-stream.section.highlights.includePocket", false); // Settings>Home>Firefox Home Content>Recent Activity>Pages Saved to Pocket
-//user_pref("browser.download.useDownloadDir", true); // use direct downloads
+user_pref("browser.download.useDownloadDir", true); // use direct downloads
-//user_pref("browser.download.folderList", 0); // 0=desktop, 1=downloads, 2=last used
+user_pref("browser.download.folderList", 0); // 0=desktop, 1=downloads, 2=last used
 user_pref("browser.toolbars.bookmarks.visibility", "never"); // always hide bookmark bar
 user_pref("browser.startup.homepage_override.mstone", "ignore"); // What's New page after updates; master switch
 user_pref("browser.urlbar.suggest.history", false); // Browsing history; hide URL bar dropdown suggestions
@@ -72,67 +70,52 @@ user_pref("browser.urlbar.suggest.bookmark", false); // Bookmarks; hide URL bar
 user_pref("browser.urlbar.suggest.openpage", false); // Open tabs; hide URL bar dropdown suggestions
 user_pref("browser.urlbar.suggest.topsites", false); // Shortcuts; disable dropdown suggestions with empty query
 user_pref("browser.urlbar.suggest.engines", false); // Search engines; tab-to-search
-user_pref("browser.urlbar.quicksuggest.enabled", false); // hide Firefox Suggest UI in the settings
+//user_pref("browser.urlbar.suggest.searches", false); // (needed?); hide URL bar dropdown suggestions
 //user_pref("browser.urlbar.maxRichResults", 1); // minimum suggestion needed for URL bar autofill
 user_pref("browser.bookmarks.max_backups", 0); // minimize disk use; manually back-up
 user_pref("view_source.wrap_long_lines", true);  // wrap source lines
 user_pref("devtools.debugger.ui.editor-wrapping", true);  // wrap lines in devtools
 user_pref("browser.zoom.full", false); // text-only zoom, not all elements on page
-//user_pref("pdfjs.sidebarViewOnLoad", 2); // force showing of Table of Contents in sidebar for PDFs (if available)
+user_pref("pdfjs.sidebarViewOnLoad", 2); // force showing of Table of Contents in sidebar for PDFs (if available)
-user_pref("layout.word_select.eat_space_to_next_word", false); // do not select the space next to a word when selecting a word
+//user_pref("layout.word_select.eat_space_to_next_word", false); // do not select the space next to a word when selecting a word
 //user_pref("browser.tabs.loadInBackground", false); // CTRL+SHIFT+CLICK for background tabs; Settings>General>Tabs>When you open a link, image or media in a new tab, switch to it immediately
 user_pref("browser.tabs.loadBookmarksInTabs", true); // force bookmarks to open in a new tab, not the current tab
 user_pref("ui.key.menuAccessKey", 0); // remove underlined characters from various settings
 user_pref("general.autoScroll", false); // disable unintentional behavior for middle click
-user_pref("ui.SpellCheckerUnderlineStyle", 1); // [HIDDEN] dots for spell check errors
+user_pref("ui.SpellCheckerUnderlineStyle", 1); // dots for spell check errors
 user_pref("media.videocontrols.picture-in-picture.display-text-tracks.size", "small"); // PiP
 user_pref("media.videocontrols.picture-in-picture.urlbar-button.enabled", false); // PiP in address bar
 user_pref("reader.parse-on-load.enabled", false); // disable reader mode
 //user_pref("reader.color_scheme", "auto"); // match system theme for when reader is enabled
 //user_pref("browser.urlbar.openintab", true); // stay on current site and open new tab when typing in URL bar
 user_pref("browser.urlbar.trimHttps", true); // hide https in URL bar [FF119]
 /** DELETE IF NOT NIGHTLY ***/
 user_pref("privacy.userContext.enabled", false); // disable Containers functionality
 user_pref("browser.crashReports.unsubmittedCheck.enabled", false); // true by default on NIGHTLY
 //user_pref("xpinstall.signatures.required", false); // [ESR/DEV/NIGHTLY]
 //user_pref("browser.urlbar.suggest.trending", false); // FF119+ disable showing trending searches; unselect for clean UI
 //user_pref("browser.urlbar.suggest.quickactions", false); // Quick actions; hide URL bar dropdown suggestions
 //user_pref("browser.urlbar.suggest.clipboard", false); // Clipboard; hide URL bar dropdown suggestions
 /** DELETE IF NOT WINDOWS DESKTOP ***/
 user_pref("network.trr.mode", 3); // enable TRR (without System fallback)
-//user_pref("browser.startup.preXulSkeletonUI", false); // WINDOWS
+user_pref("gfx.canvas.accelerated", true); // DEFAULT NON-WINDOWS; enable if not using an integrated GPU
 user_pref("browser.startup.preXulSkeletonUI", false); // WINDOWS
 user_pref("default-browser-agent.enabled", false); // deny Mozilla monitoring default browser (breaks "Make Default" button)
 user_pref("geo.provider.ms-windows-location", false); //  [WINDOWS]
 user_pref("pdfjs.defaultZoomValue", "125"); // alt=page-width; PDF zoom level
 user_pref("gfx.font_rendering.cleartype_params.rendering_mode", 5);
 user_pref("gfx.font_rendering.cleartype_params.cleartype_level", 100);
 user_pref("gfx.font_rendering.cleartype_params.force_gdi_classic_for_families", "");
 user_pref("gfx.font_rendering.cleartype_params.force_gdi_classic_max_size", 6);
 user_pref("gfx.font_rendering.directwrite.use_gdi_table_loading", false);
-//user_pref("gfx.font_rendering.cleartype_params.enhanced_contrast", 100);
+//user_pref("gfx.font_rendering.cleartype_params.gamma", 898); // 1000-2200; https://www.reddit.com/r/firefox/comments/10ed7o2/comment/j4qar9y/
 //user_pref("font.name.serif.x-western", "Roboto Slab"); // serif font
 //user_pref("font.name.sans-serif.x-western", "Roboto"); // sans-serif font
 //user_pref("font.name.monospace.x-western", "Fira Code"); // monospace font
-
+user_pref("browser.cache.disk.enable", false); // disable disk cache
-/** DELETE IF NOT ENTERPRISE WINDOWS LAPTOP ***/
+user_pref("browser.cache.memory.capacity", 65536); // default= -1 (32768)
-user_pref("urlclassifier.trackingSkipURLs", ""); // do not allow embedded tweets, Instagram, Reddit, and Tiktok posts
+user_pref("media.memory_cache_max_size", 131072); // AF=65536
 user_pref("urlclassifier.features.socialtracking.skipURLs", ""); // do not allow embedded tweets, Instagram, Reddit, and Tiktok posts
 user_pref("browser.search.suggest.enabled", true); // search suggestions
 user_pref("browser.urlbar.showSearchSuggestionsFirst", true); // Show search suggestions ahead of browsing history in address bar results
 //user_pref("network.connectivity-service.enabled", true); // public wifi
 //user_pref("network.trr.confirmationNS", "example.com"); // TRR confirmation request
 //user_pref("network.trr.mode", 2); // enable TRR (without System fallback)
 //user_pref("browser.startup.preXulSkeletonUI", false); // WINDOWS
 user_pref("gfx.font_rendering.cleartype_params.rendering_mode", 5);
 user_pref("gfx.font_rendering.cleartype_params.cleartype_level", 100);
 user_pref("gfx.font_rendering.cleartype_params.force_gdi_classic_for_families", "");
 user_pref("gfx.font_rendering.directwrite.use_gdi_table_loading", false);
 user_pref("gfx.font_rendering.cleartype_params.enhanced_contrast", 100);
 user_pref("toolkit.legacyUserProfileCustomizations.stylesheets", false); // no need for userChrome
 //user_pref("browser.urlbar.suggest.history", true); // Browsing history
 //user_pref("browser.urlbar.suggest.bookmark", true); // Bookmarks
 //user_pref("browser.urlbar.suggest.openpage", true); // Open tabs
 //user_pref("browser.urlbar.suggest.topsites", true); // Shortcuts
 /** DELETE IF NOT macOS LAPTOP ***/
 user_pref("network.trr.mode", 2); // enable TRR (with System fallback)
@@ -141,9 +124,3 @@ user_pref("geo.provider.use_corelocation", false); // geolocation [MAC]
 user_pref("pdfjs.defaultZoomValue", "page-width"); // PDF zoom level
 user_pref("app.update.auto", false); // disable auto-installing Firefox updates [NON-WINDOWS]
 //user_pref("font.name.monospace.x-western", "SF Mono"); // monospace font
 /** DELETE IF NOT LINUX LAPTOP ***/
 user_pref("network.trr.mode", 2); // enable TRR (with System fallback)
 user_pref("network.trr.max-fails", 5); // lower max attempts to use DoH
 user_pref("geo.provider.use_geoclue", false); // [LINUX]
 user_pref("pdfjs.defaultZoomValue", "page-width"); // PDF zoom level
@@ -10,7 +10,7 @@
 /****************************************************************************
 * Betterfox                                                                *
 * "Ad meliora"                                                             *
- * version: 138                                                             *
+ * version: 126                                                             *
 * url: https://github.com/yokoffing/Betterfox                              *
 ****************************************************************************/
@@ -21,14 +21,12 @@
 user_pref("content.notify.interval", 100000);
 /** GFX ***/
 user_pref("gfx.canvas.accelerated.cache-items", 4096);
 user_pref("gfx.canvas.accelerated.cache-size", 512);
 user_pref("gfx.content.skia-font-cache-size", 20);
 /** DISK CACHE ***/
-user_pref("browser.cache.disk.enable", false);
+user_pref("browser.cache.jsbc_compression_level", 3);
 /** MEMORY CACHE ***/
 user_pref("browser.sessionhistory.max_total_viewers", 4);
 /** MEDIA CACHE ***/
 user_pref("media.memory_cache_max_size", 65536);
@@ -47,23 +45,25 @@ user_pref("network.dnsCacheExpiration", 3600);
 user_pref("network.ssl_tokens_cache_capacity", 10240);
 /** SPECULATIVE LOADING ***/
 user_pref("network.http.speculative-parallel-limit", 0);
 user_pref("network.dns.disablePrefetch", true);
 user_pref("network.dns.disablePrefetchFromHTTPS", true);
 user_pref("browser.urlbar.speculativeConnect.enabled", false);
 user_pref("browser.places.speculativeConnect.enabled", false);
 user_pref("network.prefetch-next", false);
 user_pref("network.predictor.enabled", false);
 user_pref("network.predictor.enable-prefetch", false);
 /** EXPERIMENTAL ***/
 user_pref("layout.css.grid-template-masonry-value.enabled", true);
 user_pref("dom.enable_web_task_scheduling", true);
 user_pref("dom.security.sanitizer.enabled", true);
 /****************************************************************************
 * SECTION: SECUREFOX                                                       *
 ****************************************************************************/
 /** TRACKING PROTECTION ***/
 user_pref("browser.contentblocking.category", "strict");
 user_pref("urlclassifier.trackingSkipURLs", "*.reddit.com, *.twitter.com, *.twimg.com, *.tiktok.com");
 user_pref("urlclassifier.features.socialtracking.skipURLs", "*.instagram.com, *.twitter.com, *.twimg.com");
 user_pref("network.cookie.sameSite.noneRequiresSecure", true);
 user_pref("browser.download.start_downloads_in_tmp_dir", true);
 user_pref("browser.helperApps.deleteTempFileOnExit", true);
 user_pref("browser.uitour.enabled", false);
@@ -71,6 +71,7 @@ user_pref("privacy.globalprivacycontrol.enabled", true);
 /** OCSP & CERTS / HPKP ***/
 user_pref("security.OCSP.enabled", 0);
 user_pref("security.remote_settings.crlite_filters.enabled", true);
 user_pref("security.pki.crlite_mode", 2);
 /** SSL / TLS ***/
@@ -83,20 +84,23 @@ user_pref("browser.privatebrowsing.forceMediaMemoryCache", true);
 user_pref("browser.sessionstore.interval", 60000);
 /** SHUTDOWN & SANITIZING ***/
 user_pref("browser.privatebrowsing.resetPBM.enabled", true);
 user_pref("privacy.history.custom", true);
 /** SEARCH / URL BAR ***/
 user_pref("browser.urlbar.trimHttps", true);
 user_pref("browser.urlbar.untrimOnUserInteraction.featureGate", true);
 user_pref("browser.search.separatePrivateDefault.ui.enabled", true);
 user_pref("browser.urlbar.update2.engineAliasRefresh", true);
 user_pref("browser.search.suggest.enabled", false);
-user_pref("browser.urlbar.quicksuggest.enabled", false);
+user_pref("browser.urlbar.suggest.quicksuggest.sponsored", false);
-user_pref("browser.urlbar.groupLabels.enabled", false);
+user_pref("browser.urlbar.suggest.quicksuggest.nonsponsored", false);
 user_pref("browser.formfill.enable", false);
 user_pref("security.insecure_connection_text.enabled", true);
 user_pref("security.insecure_connection_text.pbmode.enabled", true);
 user_pref("network.IDN_show_punycode", true);
 /** HTTPS-FIRST POLICY ***/
 user_pref("dom.security.https_first", true);
 user_pref("dom.security.https_first_schemeless", true);
 /** PASSWORDS ***/
 user_pref("signon.formlessCapture.enabled", false);
 user_pref("signon.privateBrowsingCapture.enabled", false);
@@ -105,10 +109,10 @@ user_pref("editor.truncate_user_pastes", false);
 /** MIXED CONTENT + CROSS-SITE ***/
 user_pref("security.mixed_content.block_display_content", true);
 user_pref("security.mixed_content.upgrade_display_content", true);
 user_pref("security.mixed_content.upgrade_display_content.image", true);
 user_pref("pdfjs.enableScripting", false);
-
+user_pref("extensions.postDownloadThirdPartyPrompt", false);
 /** EXTENSIONS ***/
 user_pref("extensions.enabledScopes", 5);
 /** HEADERS / REFERERS ***/
 user_pref("network.http.referer.XOriginTrimmingPolicy", 2);
@@ -116,16 +120,19 @@ user_pref("network.http.referer.XOriginTrimmingPolicy", 2);
 /** CONTAINERS ***/
 user_pref("privacy.userContext.ui.enabled", true);
 /** WEBRTC ***/
 user_pref("media.peerconnection.ice.proxy_only_if_behind_proxy", true);
 user_pref("media.peerconnection.ice.default_address_only", true);
 /** SAFE BROWSING ***/
 user_pref("browser.safebrowsing.downloads.remote.enabled", false);
 /** MOZILLA ***/
 user_pref("permissions.default.desktop-notification", 2);
 user_pref("permissions.default.geo", 2);
-user_pref("geo.provider.network.url", "https://beacondb.net/v1/geolocate");
+user_pref("geo.provider.network.url", "https://location.services.mozilla.com/v1/geolocate?key=%MOZILLA_API_KEY%");
 user_pref("browser.search.update", false);
 user_pref("permissions.manager.defaultsUrl", "");
-user_pref("extensions.getAddons.cache.enabled", false);
+user_pref("webchannel.allowObject.urlWhitelist", "");
 /** TELEMETRY ***/
 user_pref("datareporting.policy.dataSubmissionEnabled", false);
@@ -144,7 +151,6 @@ user_pref("toolkit.coverage.opt-out", true);
 user_pref("toolkit.coverage.endpoint.base", "");
 user_pref("browser.newtabpage.activity-stream.feeds.telemetry", false);
 user_pref("browser.newtabpage.activity-stream.telemetry", false);
 user_pref("datareporting.usage.uploadEnabled", false);
 /** EXPERIMENTS ***/
 user_pref("app.shield.optoutstudies.enabled", false);
@@ -154,6 +160,12 @@ user_pref("app.normandy.api_url", "");
 /** CRASH REPORTS ***/
 user_pref("breakpad.reportURL", "");
 user_pref("browser.tabs.crashReporting.sendReport", false);
 user_pref("browser.crashReports.unsubmittedCheck.autoSubmit2", false);
 /** DETECTION ***/
 user_pref("captivedetect.canonicalURL", "");
 user_pref("network.captive-portal-service.enabled", false);
 user_pref("network.connectivity-service.enabled", false);
 /****************************************************************************
 * SECTION: PESKYFOX                                                        *
@@ -167,35 +179,43 @@ user_pref("browser.shell.checkDefaultBrowser", false);
 user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.addons", false);
 user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features", false);
 user_pref("browser.preferences.moreFromMozilla", false);
 user_pref("browser.tabs.tabmanager.enabled", false);
 user_pref("browser.aboutConfig.showWarning", false);
 user_pref("browser.aboutwelcome.enabled", false);
 user_pref("browser.profiles.enabled", true);
 /** THEME ADJUSTMENTS ***/
 user_pref("toolkit.legacyUserProfileCustomizations.stylesheets", true);
 user_pref("browser.compactmode.show", true);
 user_pref("browser.display.focus_ring_on_anything", true);
 user_pref("browser.display.focus_ring_style", 0);
 user_pref("browser.display.focus_ring_width", 0);
 user_pref("layout.css.prefers-color-scheme.content-override", 2);
 user_pref("browser.privateWindowSeparation.enabled", false); // WINDOWS
 /** COOKIE BANNER HANDLING ***/
 user_pref("cookiebanners.service.mode", 1);
 user_pref("cookiebanners.service.mode.privateBrowsing", 1);
 /** FULLSCREEN NOTICE ***/
 user_pref("full-screen-api.transition-duration.enter", "0 0");
 user_pref("full-screen-api.transition-duration.leave", "0 0");
 user_pref("full-screen-api.warning.delay", -1);
 user_pref("full-screen-api.warning.timeout", 0);
 /** URL BAR ***/
 user_pref("browser.urlbar.suggest.calculator", true);
 user_pref("browser.urlbar.unitConversion.enabled", true);
 user_pref("browser.urlbar.trending.featureGate", false);
 user_pref("dom.text_fragments.create_text_fragment.enabled", true);
 /** NEW TAB PAGE ***/
-user_pref("browser.newtabpage.activity-stream.default.sites", "");
+user_pref("browser.newtabpage.activity-stream.feeds.topsites", false);
 user_pref("browser.newtabpage.activity-stream.showSponsoredTopSites", false);
 user_pref("browser.newtabpage.activity-stream.feeds.section.topstories", false);
 user_pref("browser.newtabpage.activity-stream.showSponsored", false);
 /** POCKET ***/
 user_pref("extensions.pocket.enabled", false);
 /** DOWNLOADS ***/
 user_pref("browser.download.always_ask_before_handling_new_types", true);
 user_pref("browser.download.manager.addToRecentDocs", false);
 /** PDF ***/
@@ -214,16 +234,12 @@ user_pref("layout.word_select.eat_space_to_next_word", false);
 // visit https://github.com/yokoffing/Betterfox/wiki/Optional-Hardening
 // Enter your personal overrides below this line:
 /****************************************************************************
 * SECTION: SMOOTHFOX                                                       *
 ****************************************************************************/
 // visit https://github.com/yokoffing/Betterfox/blob/main/Smoothfox.js
 // Enter your scrolling overrides below this line:
 /****************************************************************************
 * END: BETTERFOX                                                           *
 ****************************************************************************/
@@ -1,131 +0,0 @@
 //
 /* You may copy+paste this file and use it as it is.
 *
 * If you make changes to your about:config while the program is running, the
 * changes will be overwritten by the user.js when the application restarts.
 *
 * To make lasting changes to preferences, you will have to edit the user.js.
 */
 /****************************************************************************
 * BetterZen                                                                *
 * "Ex nihilo nihil fit"                                                    *
 * version: 138                                                             *
 * url: https://github.com/yokoffing/Betterfox                              *
 ****************************************************************************/
 /****************************************************************************
 * SECTION: FASTFOX                                                         *
 ****************************************************************************/
 /** GFX ***/
 user_pref("gfx.canvas.accelerated.cache-size", 512);
 /** DISK CACHE ***/
 user_pref("browser.cache.disk.enable", false);
 /** NETWORK ***/
 user_pref("network.http.pacing.requests.enabled", false);
 /** SPECULATIVE LOADING ***/
 user_pref("network.dns.disablePrefetch", true);
 user_pref("network.dns.disablePrefetchFromHTTPS", true);
 user_pref("network.prefetch-next", false);
 user_pref("network.predictor.enabled", false);
 user_pref("network.predictor.enable-prefetch", false);
 /****************************************************************************
 * SECTION: SECUREFOX                                                       *
 ****************************************************************************/
 /** TRACKING PROTECTION ***/
 user_pref("browser.contentblocking.category", "strict");
 user_pref("browser.download.start_downloads_in_tmp_dir", true);
 /** OCSP & CERTS / HPKP ***/
 user_pref("security.OCSP.enabled", 0);
 user_pref("security.pki.crlite_mode", 2);
 /** DISK AVOIDANCE ***/
 user_pref("browser.sessionstore.interval", 60000);
 /** SHUTDOWN & SANITIZING ***/
 user_pref("browser.privatebrowsing.resetPBM.enabled", true);
 user_pref("privacy.history.custom", true);
 /** SEARCH / URL BAR ***/
 user_pref("browser.urlbar.quicksuggest.enabled", false);
 /** PASSWORDS ***/
 user_pref("signon.formlessCapture.enabled", false);
 user_pref("signon.privateBrowsingCapture.enabled", false);
 user_pref("network.auth.subresource-http-auth-allow", 1);
 user_pref("editor.truncate_user_pastes", false);
 /** HEADERS / REFERERS ***/
 user_pref("network.http.referer.XOriginTrimmingPolicy", 2);
 /** SAFE BROWSING ***/
 user_pref("browser.safebrowsing.downloads.remote.enabled", false);
 /** MOZILLA ***/
 user_pref("permissions.default.desktop-notification", 2);
 user_pref("permissions.default.geo", 2);
 user_pref("geo.provider.network.url", "https://beacondb.net/v1/geolocate");
 user_pref("browser.search.update", false);
 user_pref("permissions.manager.defaultsUrl", "");
 /****************************************************************************
 * SECTION: PESKYFOX                                                        *
 ****************************************************************************/
 /** MOZILLA UI ***/
 user_pref("browser.shell.checkDefaultBrowser", false);
 /** NEW TAB PAGE ***/
 user_pref("browser.newtabpage.activity-stream.default.sites", "");
 /** URL BAR ***/
 user_pref("dom.text_fragments.create_text_fragment.enabled", true);
 /****************************************************************************
 * START: ZEN-SPECIFIC OVERRIDES                                            *
 ****************************************************************************/
 // Remove the slashes to enable the prefs
 // PREF: reduce CPU and GPU use until bug is fixed
 // [1] https://github.com/zen-browser/desktop/issues/6302
 user_pref("zen.view.experimental-rounded-view", false);
 // PREF: re-enable Windows efficiency mode
 //user_pref("dom.ipc.processPriorityManager.backgroundUsesEcoQoS", true);
 // PREF: disable new tab preload since they are off by default
 //user_pref("browser.newtab.preload", false);
 // PREF: show Enhance Tracking Protection shield in URL bar
 // Currently bugged if you click to view what's blocked
 //user_pref("zen.urlbar.show-protections-icon", true);
 // PREF: Disable the Picture in picture pop-out when changing tabs
 //user_pref("media.videocontrols.picture-in-picture.enable-when-switching-tabs.enabled", false);
 /****************************************************************************
 * START: MY OVERRIDES                                                      *
 ****************************************************************************/
 // visit https://github.com/yokoffing/Betterfox/wiki/Common-Overrides
 // visit https://github.com/yokoffing/Betterfox/wiki/Optional-Hardening
 // Enter your personal overrides below this line:
 /****************************************************************************
 * SECTION: SMOOTHFOX                                                       *
 ****************************************************************************/
 // Reset Zen's custom scrolling prefs to their Firefox defaults before making changes!
 // [1] Zen changes: https://github.com/zen-browser/desktop/blob/3932ec21f5661440c4b20796f90341a6ac725818/src/browser/app/profile/zen-browser.js#L297-L312
 // [2] Firefox defaults: https://searchfox.org/mozilla-release/source/modules/libpref/init/StaticPrefList.yaml
 // Then apply an example from Smoothfox
 // [3] https://github.com/yokoffing/Betterfox/blob/main/Smoothfox.js
 // Enter your scrolling overrides below this line:
 /****************************************************************************
 * END: BETTERFOX                                                           *
 ****************************************************************************/
Author	SHA1	Message	Date
Hal	c3c64a22a1	remove duplicate	2024-05-20 14:34:22 -04:00
Hal	ef6e985186	browser.urlbar.yelp.featureGate FF124	2024-05-20 14:30:27 -04:00
Hal	4f136e9978	corroborator.enabled removed FF126	2024-05-20 14:23:13 -04:00
Hal	322002b02b	add text fragment (experimental)	2024-05-20 14:21:48 -04:00
Hal	a687cb7297	account for MSDp	2024-05-20 13:16:43 -04:00
Hal	9212b98e53	ver #	2024-05-20 13:13:37 -04:00
Hal	9f4409dc13	ver #	2024-05-20 13:13:23 -04:00
Hal	e9b0b4f225	ver #	2024-05-20 13:13:08 -04:00
Hal	c68b528fcc	ver #	2024-05-20 13:12:40 -04:00
Hal	30228f307b	NTP: wallpapers and weather	2024-05-20 13:11:39 -04:00
Hal	4ca0d439fc	remove speculative loading test	2024-05-20 13:02:57 -04:00
Hal	ef9c886fad	Update user.js	2024-05-20 12:47:42 -04:00
Hal	1bb3c6e617	Update Fastfox.js	2024-05-17 17:59:16 -04:00
Hal	f1c5b4e06d	note	2024-05-17 17:50:55 -04:00
Hal	ec40cd2cfe	Super Resolution now implemented default	2024-05-17 17:50:08 -04:00
Hal	61c4c87c60	Update Securefox.js	2024-05-17 17:17:13 -04:00
Hal	ff2a516d2f	Update Securefox.js	2024-05-17 17:12:17 -04:00
Hal	847ba04322	SERP Telemetry	2024-05-17 17:07:59 -04:00
Hal	91e69b61ff	Bounce Tracking Protection	2024-05-17 16:56:48 -04:00
Hal	8b403e9db9	update value for network.http.speculative-parallel-limit	2024-05-05 16:04:45 -04:00
Hal	7762e11597	add network.dns.disablePrefetchFromHTTPS	2024-05-05 15:56:47 -04:00
Hal	fed34f834b	prefetchfromhttps now false (FF127+) https://bugzilla.mozilla.org/show_bug.cgi?id=1596935	2024-05-05 15:56:00 -04:00
Hal	46a27b15ff	DLP	2024-04-16 10:15:58 -04:00
Hal	36f63d97dc	browser.urlbar.yelp.featureGate	2024-04-16 10:11:53 -04:00
Hal	b05dfcfea7	add Mercury	2024-04-16 10:01:46 -04:00
Hal	a9de61b401	Update Fastfox.js	2024-04-16 09:59:18 -04:00
Hal	ff2e690409	fix decimals https://github.com/yokoffing/Betterfox/issues/287	2024-04-11 12:14:32 -04:00
Hal	2f6796d055	add line on performance	2024-03-23 13:33:09 -04:00
Hal	0f84895ec4	add resource	2024-03-22 10:44:35 -04:00
Hal	e57d87d4b9	Update user-overrides.js	2024-03-21 20:51:15 -04:00
Hal	3d9b3b4e89	Update Fastfox.js	2024-03-21 11:19:57 -04:00
Hal	56544e8fdc	Update Peskyfox.js	2024-03-21 11:15:44 -04:00
Hal	9ec4ed5fae	Update Peskyfox.js	2024-03-21 11:14:46 -04:00
Hal	ab288df159	PingCentre telemetry removed	2024-03-21 11:13:17 -04:00
Hal	155c084bc6	PingCentre telemetry removed	2024-03-21 11:12:54 -04:00
Hal	e4de66dcbc	CRLite requires push	2024-03-21 11:12:31 -04:00
Hal	4a20f7ee3c	remove push Required for CRLite	2024-03-21 11:10:50 -04:00
Hal	4775dbce89	edit RCWN title	2024-03-21 10:21:59 -04:00
Hal	96864acc29	more details	2024-03-21 10:12:22 -04:00
Hal	c4a5018b04	add network.http.rcwn.enabled	2024-03-21 09:54:13 -04:00
Hal	c18c4802f4	layout.css.has-selector.enabled is now default	2024-03-21 09:41:23 -04:00
Hal	ae7c8ee298	layout.css.has-selector.enabled is now default	2024-03-21 09:40:36 -04:00
Hal	705c50cc99	remove network.dns.max_high_priority_threads	2024-03-21 09:38:55 -04:00
Hal	f0da2bc058	DNS threads reset	2024-03-21 09:37:49 -04:00
Hal	5a7816e675	Merge branch 'main' into 123	2024-03-21 09:34:08 -04:00
Hal	80eb522422	spelling	2024-03-18 11:48:57 -04:00
Hal	bc8d1eb324	Merge branch 'main' into 123	2024-03-13 21:53:29 -04:00
Hal	f6affa6076	missing pref text	2024-02-28 18:19:35 -05:00
Hal	43546f7ba6	add op pref	2024-02-21 12:13:42 -05:00
Hal	e95eb32ffd	signon.firefoxRelay.feature	2024-02-21 12:12:20 -05:00
Hal	0f818cddff	adjust relay pref	2024-02-21 12:10:49 -05:00
Hal	35474a4c38	FF view prefs	2024-02-21 12:02:33 -05:00