149.0 (#474)

fix a typo and remove a trailing space.

.github/FUNDING.yml

@@ -0,0 +1,13 @@
+# These are supported funding model platforms
+
+github: yokoffing
+patreon: # Replace with a single Patreon username
+open_collective: # Replace with a single Open Collective username
+ko_fi: yokoffing
+tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel
+community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry
+liberapay: yokoffing
+issuehunt: # Replace with a single IssueHunt username
+otechie: # Replace with a single Otechie username
+lfx_crowdfunding: # Replace with a single LFX Crowdfunding project-name e.g., cloud-foundry
+custom: # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2']

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,43 +0,0 @@
----
-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.*

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,105 @@
+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

Fastfox.js

@@ -3,7 +3,7 @@
  * Fastfox                                                                              *
  * "Non ducor duco"                                                                     *
  * priority: speedy browsing                                                            *
- * version: 119                                                                         *
+ * version: 148                                                                         *
  * url: https://github.com/yokoffing/Betterfox                                          *
  ***************************************************************************************/
 
@@ -13,8 +13,8 @@
 
 // PREF: initial paint delay
 // How long FF will wait before rendering the page (in ms)
-// [NOTE] Older PCs may want to use 250-750.
-// [NOTE] Dark Reader users may want to use 1000-2000 [3].
+// [NOTE] You may prefer using 250.
+// [NOTE] Dark Reader users may want to use 1000 [3].
 // [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1283302
 // [2] https://docs.google.com/document/d/1BvCoZzk2_rNZx3u9ESPoFjSADRI0zIPeJRXFLwWXx_4/edit#heading=h.28ki6m8dg30z
 // [3] https://old.reddit.com/r/firefox/comments/o0xl1q/reducing_cpu_usage_of_dark_reader_extension/
@@ -22,6 +22,12 @@
 //user_pref("nglayout.initialpaint.delay", 5); // DEFAULT; formerly 250
     //user_pref("nglayout.initialpaint.delay_in_oopif", 5); // DEFAULT
 
+// PREF: Font rendering cache in Skia (32MB)
+// Increases font cache size to improve performance on text-heavy websites.
+// Especially beneficial for sites with many font faces or complex typography.
+// [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1239151#c2
+//user_pref("gfx.content.skia-font-cache-size", 32); // 32 MB; default=5; Chrome=20
+
 // PREF: page reflow timer
 // Rather than wait until a page has completely downloaded to display it to the user,
 // web browsers will periodically render what has been received to that point.
@@ -33,7 +39,7 @@
 // false = reflow pages whenever new data is received
 //user_pref("content.notify.ontimer", true); // DEFAULT
 
-// PREF: notification interval (in microseconds) to avoid layout thrashing
+// PREF: content notification delay - notification interval (in microseconds) to avoid layout thrashing
 // When Firefox is loading a page, it periodically reformats
 // or "reflows" the page as it loads. The page displays new elements
 // every 0.12 seconds by default. These redraws increase the total page load time.
@@ -45,9 +51,18 @@
 // 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://dev.opera.com/articles/efficient-javascript/?page=3#reflow
-// [3] https://dev.opera.com/articles/efficient-javascript/?page=3#smoothspeed
-user_pref("content.notify.interval", 100000); // (.10s); default=120000 (.12s)
+// [2] https://web.archive.org/web/20240115073722/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
+//user_pref("content.notify.interval", 100000); // (.10s); default=120000 (.12s)
+//user_pref("content.max.tokenizing.time", 1000000); // (1.00s); alt=2000000; HIDDEN
+//user_pref("content.interrupt.parsing", true); // HIDDEN
+
+// PREF: UI responsiveness threshold
+//user_pref("content.switch.threshold", 300000); // HIDDEN; default= 750000; alt=500000
+
+// PREF: split text nodes to a length
+// The number of bytes in a text node.
+//user_pref("content.maxtextrun", 8191); // DEFAULT; HIDDEN
 
 // PREF: new tab preload
 // [WARNING] Disabling this may cause a delay when opening a new tab in Firefox.
@@ -75,6 +90,18 @@ user_pref("content.notify.interval", 100000); // (.10s); default=120000 (.12s)
 // PREF: disable preSkeletonUI on startup [WINDOWS]
 //user_pref("browser.startup.preXulSkeletonUI", false);
 
+// PREF: lazy load iframes
+//user_pref("dom.iframe_lazy_loading.enabled", true); // DEFAULT [FF121+]
+
+// PREF: Prioritized Task Scheduling API 
+// [1] https://github.com/yokoffing/Betterfox/issues/355
+// [2] https://blog.mozilla.org/performance/2022/06/02/prioritized-task-scheduling-api-is-prototyped-in-nightly/
+// [3] https://medium.com/airbnb-engineering/building-a-faster-web-experience-with-the-posttask-scheduler-276b83454e91
+// [4] https://github.com/WICG/scheduling-apis/blob/main/explainers/prioritized-post-task.md
+// [5] https://wicg.github.io/scheduling-apis/
+// [6] https://caniuse.com/mdn-api_taskcontroller
+//user_pref("dom.enable_web_task_scheduling", true); // DEFAULT [FF142+]
+
 /****************************************************************************
  * SECTION: GFX RENDERING TWEAKS                                            *
 ****************************************************************************/
@@ -90,32 +117,38 @@ user_pref("content.notify.interval", 100000); // (.10s); default=120000 (.12s)
 //user_pref("gfx.webrender.compositor", true); // DEFAULT WINDOWS macOS
     //user_pref("gfx.webrender.compositor.force-enabled", true); // enforce
 
+// PREF: Webrender layer compositor
+// [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1945683
+// [2] https://www.reddit.com/r/firefox/comments/1p58qre/firefox_is_getting_ready_to_make_youtube_fast/
+// [3] https://www.ghacks.net/2025/11/24/these-two-tweaks-should-improve-firefoxs-performance-on-youtube-significantly/
+user_pref("gfx.webrender.layer-compositor", true);
+    // If your PC uses an AMD GPU, you might want to make a second change.
+    // This one improves CPU usage on AMD systems.
+    //user_pref("media.wmf.zero-copy-nv12-textures-force-enabled", true);
+
 // PREF: if your hardware doesn't support Webrender, you can fallback to Webrender's software renderer
 // [1] https://www.ghacks.net/2020/12/14/how-to-find-out-if-webrender-is-enabled-in-firefox-and-how-to-enable-it-if-it-is-not/
 //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 for video overlay [WINDOWS]
-// [NOTE] May not work on Stable release [2].
-// This is also a setting in NVIDIA's driver settings, so once this is
-// stable, it should default to true.
-// [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/
-//user_pref("gfx.webrender.super-resolution.nvidia", true);
-
 // PREF: GPU-accelerated Canvas2D
-// Use gpu-canvas instead of to skia-canvas.
+// Uses Accelerated Canvas2D for hardware acceleration of Canvas2D.
+// 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 macOS LINUX [FF110]; not compatible with WINDOWS integrated GPUs
-    user_pref("gfx.canvas.accelerated.cache-items", 4096); // default=2048; alt=8192
-    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
+//user_pref("gfx.canvas.accelerated", true); // [DEFAULT FF133+]
+    //user_pref("gfx.canvas.accelerated.cache-items", 4096); // [default=8192 FF135+]; Chrome=4096
+    //user_pref("gfx.canvas.accelerated.cache-size", 512); // default=256; Chrome=512
+    //user_pref("gfx.canvas.max-size", 32767); // DEFAULT=32767
+
+// PREF: WebGL
+//user_pref("webgl.max-size", 16384); // default=1024
+//user_pref("webgl.force-enabled", true);
 
 // PREF: prefer GPU over CPU
 // At best, the prefs do nothing on Linux/macOS.
@@ -129,11 +162,6 @@ 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
@@ -146,14 +174,6 @@ user_pref("content.notify.interval", 100000); // (.10s); default=120000 (.12s)
  * SECTION: DISK CACHE                                                     *
 ****************************************************************************/
 
-// PREF: disk cache
-// [NOTE] If you think it helps performance, then feel free to override this.
-// [SETTINGS] See about:cache
-// 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", true); // DEFAULT
-
 // PREF: disk cache size
 // [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=913808,968106,968101
 // [2] https://rockridge.hatenablog.com/entry/2014/09/15/165501
@@ -162,12 +182,32 @@ user_pref("content.notify.interval", 100000); // (.10s); default=120000 (.12s)
 //user_pref("browser.cache.disk.capacity", 512000); // default=256000; size of disk cache; 1024000=1GB, 2048000=2GB
 //user_pref("browser.cache.disk.max_entry_size", 51200); // DEFAULT (50 MB); maximum size of an object in disk cache
 
+// PREF: Race Cache With Network (RCWN) [FF59+]
+// [ABOUT] about:networking#rcwn
+// Firefox concurrently sends requests for cached resources to both the
+// local disk cache and the network server. The browser uses whichever
+// result arrives first and cancels the other request. This approach sometimes
+// loads pages faster because the network can be quicker than accessing the cache
+// on a hard drive. When RCWN is enabled, the request might be served from
+// the server even if you have valid entry in the cache. Set to false if your
+// intention is to increase cache usage and reduce network usage.
+// [1] https://slides.com/valentingosu/race-cache-with-network-2017
+// [2] https://simonhearne.com/2020/network-faster-than-cache/
+// [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", 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
+
 // PREF: cache memory pool
 // Cache v2 provides a memory pool that stores metadata (such as response headers)
 // for recently read cache entries [1]. It is managed by a cache thread, and caches with
 // metadata in the pool appear to be reused immediately.
 // [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=986179
-//user_pref("browser.cache.disk.metadata_memory_limit", 500); // default=250 (0.25 MB); limit of recent metadata we keep in memory for faster access
+//user_pref("browser.cache.disk.metadata_memory_limit", 16384); // default=250 (0.25 MB); limit of recent metadata we keep in memory for faster access
 
 // PREF: number of chunks we preload ahead of read
 // Large content such as images will load faster.
@@ -198,10 +238,11 @@ user_pref("content.notify.interval", 100000); // (.10s); default=120000 (.12s)
 //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
+//user_pref("browser.cache.check_doc_frequency", 3); // DEFAULT
 
 // PREF: enforce free space checks
 // When smartsizing is disabled, we could potentially fill all disk space by
@@ -218,13 +259,15 @@ user_pref("content.notify.interval", 100000); // (.10s); default=120000 (.12s)
 // 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.
-// Subsequent reload of websites will be much much faster.
+// -1 makes page load times marginally longer when a page is being loaded for the first time, while
+// 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
@@ -241,11 +284,12 @@ user_pref("browser.cache.jsbc_compression_level", 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,
 // 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", -1); // DEFAULT; 256000=256 MB; 512000=500 MB; 1048576=1GB, 2097152=2GB
-//user_pref("browser.cache.memory.max_entry_size", 10240); // (10 MB); default=5120 (5 MB)
+//user_pref("browser.cache.memory.capacity", 131072); // 128 MB RAM cache; alt=65536 (65 MB RAM cache); default=32768
+//user_pref("browser.cache.memory.max_entry_size", 20480); // 20 MB max entry; 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
@@ -256,7 +300,15 @@ user_pref("browser.cache.jsbc_compression_level", 3);
 // 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); // default=8
+//user_pref("browser.sessionstore.max_tabs_undo", 10); // default=25
+    //user_pref("browser.sessionstore.max_entries", 10); // [HIDDEN OR REMOVED]
+    //user_pref("dom.storage.default_quota", 20480); // 20MB; default=5120
+    //user_pref("dom.storage.shadow_writes", true);
+
+// PREF: tell garbage collector to start running when javascript is using xx MB of memory
+// Garbage collection releases memory back to the system.
+//user_pref("javascript.options.mem.high_water_mark", 128); // DEFAULT [HIDDEN OR REMOVED]
 
 /****************************************************************************
  * SECTION: MEDIA CACHE                                                     *
@@ -265,11 +317,8 @@ user_pref("browser.cache.jsbc_compression_level", 3);
 // PREF: media disk cache
 //user_pref("media.cache_size", 512000); // DEFAULT
 
-// PREF: media memory cache
-// [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
-//user_pref("media.memory_caches_combined_limit_kb", 524288); // DEFAULT; alt=1048576
+// PREF: media cache combine sizes
+//user_pref("media.memory_caches_combined_limit_kb", 1048576); // 1GB; default=524288
 //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
 
 // PREF: Media Source Extensions (MSE) web standard
@@ -283,19 +332,20 @@ user_pref("media.memory_cache_max_size", 65536); // default=8192; AF=65536; alt=
 // PREF: adjust video buffering periods when not using MSE (in seconds)
 // [NOTE] Does not affect videos over 720p since they use DASH playback [1]
 // [1] https://lifehacker.com/preload-entire-youtube-videos-by-disabling-dash-playbac-1186454034
-user_pref("media.cache_readahead_limit", 7200); // 120 min; default=60; stop reading ahead when our buffered data is this many seconds ahead of the current playback
-user_pref("media.cache_resume_threshold", 3600); // 60 min; default=30; when a network connection is suspended, don't resume it until the amount of buffered data falls below this threshold
+//user_pref("media.cache_readahead_limit", 600); // 10 min; default=60; stop reading ahead when our buffered data is this many seconds ahead of the current playback
+//user_pref("media.cache_resume_threshold", 300); // 5 min; default=30; when a network connection is suspended, don't resume it until the amount of buffered data falls below this threshold
 
 /****************************************************************************
  * SECTION: IMAGE CACHE                                                     *
 ****************************************************************************/
 
 // PREF: image cache
-//user_pref("image.cache.size", 5242880); // DEFAULT; in MiB; alt=10485760 (cache images up to 10MiB in size)
-user_pref("image.mem.decode_bytes_at_a_time", 32768); // default=16384; alt=65536; chunk size for calls to the image decoders
+//user_pref("image.cache.size", 10485760); // (cache images up to 10MiB in size) [DEFAULT 5242880]
+//user_pref("image.mem.decode_bytes_at_a_time", 65536); // default=16384; alt=32768; chunk size for calls to the image decoders
+//user_pref("image.mem.max_decoded_image_kb", 512000); // 500MB [HIDDEN OR REMOVED?]
 
 // PREF: set minimum timeout to unmap shared surfaces since they have been last used
-// This is only used on 32-bit builds of Firefox where there is meaningful
+// [NOTE] This is only used on 32-bit builds of Firefox where there is meaningful
 // virtual address space pressure.
 // [1] https://phabricator.services.mozilla.com/D109440
 // [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1699224
@@ -306,20 +356,24 @@ 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].
 // 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
-user_pref("network.buffer.cache.size", 262144); // 256 kb; default=32768 (32 kb)
-user_pref("network.buffer.cache.count", 128); // default=24
+// [2] https://github.com/yokoffing/Betterfox/issues/279
+// [3] https://ra1ahq.blog/en/optimizaciya-proizvoditelnosti-mozilla-firefox
+//user_pref("network.buffer.cache.size", 65535); // default=32768 (32 kb); 262144 too large
+//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
 // [2] https://kb.mozillazine.org/Network.http.max-persistent-connections-per-server
 // [3] https://www.reddit.com/r/firefox/comments/11m2yuh/how_do_i_make_firefox_use_more_of_my_900_megabit/jbfmru6/
-user_pref("network.http.max-connections", 1800); // default=900
-user_pref("network.http.max-persistent-connections-per-server", 10); // default=6; download connections; anything above 10 is excessive
-    user_pref("network.http.max-urgent-start-excessive-connections-per-host", 5); // default=3
+//user_pref("network.http.max-connections", 1800); // default=900
+//user_pref("network.http.max-persistent-connections-per-server", 10); // default=6; download connections; anything above 10 is excessive
+    //user_pref("network.http.max-urgent-start-excessive-connections-per-host", 5); // default=3
     //user_pref("network.http.max-persistent-connections-per-proxy", 48); // default=32
+//user_pref("network.http.request.max-start-delay", 5); // default=10
 //user_pref("network.websocket.max-connections", 200); // DEFAULT
 
 // PREF: pacing requests [FF23+]
@@ -331,196 +385,26 @@ user_pref("network.http.max-persistent-connections-per-server", 10); // default=
 // may provide a small speed boost when loading pages with lots of requests.
 // false = Firefox will send as many requests as possible without pacing
 // true = Firefox will pace requests (default)
-user_pref("network.http.pacing.requests.enabled", false);
+//user_pref("network.http.pacing.requests.enabled", false);
     //user_pref("network.http.pacing.requests.min-parallelism", 10); // default=6
-    //user_pref("network.http.pacing.requests.burst", 14); // default=10
+    //user_pref("network.http.pacing.requests.burst", 32); // default=10
 
 // PREF: increase DNS cache
 // [1] https://developer.mozilla.org/en-US/docs/Web/Performance/Understanding_latency
-//user_pref("network.dnsCacheEntries", 1000); // default=400
+//user_pref("network.dnsCacheEntries", 10000); // default=800
 
 // PREF: adjust DNS expiration time
 // [ABOUT] about:networking#dns
 // [NOTE] These prefs will be ignored by DNS resolver if using DoH/TRR.
-user_pref("network.dnsCacheExpiration", 3600); // keep entries for 1 hour
-    //user_pref("network.dnsCacheExpirationGracePeriod", 240); // default=60; cache DNS entries for 4 minutes after they expire
+//user_pref("network.dnsCacheExpiration", 3600); // keep entries for 1 hour; default=60
+    //user_pref("network.dnsCacheExpirationGracePeriod", 120); // default=60; cache DNS entries for 2 minutes after they expire
 
 // PREF: the number of threads for DNS
-user_pref("network.dns.max_high_priority_threads", 8); // default=5
-//user_pref("network.dns.max_any_priority_threads", 3); // DEFAULT
+//user_pref("network.dns.max_high_priority_threads", 40); // DEFAULT [FF 123?]
+//user_pref("network.dns.max_any_priority_threads", 24); // DEFAULT [FF 123?]
 
 // PREF: increase TLS token caching 
-user_pref("network.ssl_tokens_cache_capacity", 10240); // default=2048; more TLS token caching (fast reconnects)
-
-/****************************************************************************
- * SECTION: SPECULATIVE LOADING                                            *
-****************************************************************************/
-
-// These are connections that are not explicitly asked for (e.g., clicked on).
-// [1] https://developer.mozilla.org/en-US/docs/Web/Performance/Speculative_loading
-
-// [NOTE] FF85+ partitions (isolates) pooled connections, prefetch connections,
-// pre-connect connections, speculative connections, TLS session identifiers,
-// and other connections. We can take advantage of the speed of pre-connections
-// while preserving privacy. Users may relax hardening to maximize their preference.
-// For more information, see SecureFox: "PREF: State Paritioning" and "PREF: Network Partitioning".
-// [NOTE] To activate and increase network predictions, go to settings in uBlock Origin and uncheck:
-// - "Disable pre-fetching (to prevent any connection for blocked network requests)"
-// [NOTE] Add prefs to "MY OVERRIDES" section and uncomment to enable them in your user.js.
-
-// PREF: link-mouseover opening connection to linked server
-// When accessing content online, devices use sockets as endpoints.
-// The global limit on half-open sockets controls how many speculative
-// connection attempts can occur at once when starting new connections [3].
-// If the user follows through, pages can load faster since some
-// work was done in advance. Firefox opens predictive connections
-// to sites when hovering over New Tab thumbnails or starting a
-// URL Bar search [1] and hyperlinks within a page [2].
-// [NOTE] DNS (if enabled), TCP, and SSL handshakes are set up in advance,
-// but page contents are not downloaded until a click on the link is registered.
-// [1] https://support.mozilla.org/en-US/kb/how-stop-firefox-making-automatic-connections?redirectslug=how-stop-firefox-automatically-making-connections&redirectlocale=en-US#:~:text=Speculative%20pre%2Dconnections
-// [2] https://news.slashdot.org/story/15/08/14/2321202/how-to-quash-firefoxs-silent-requests
-// [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", 6); // DEFAULT
-
-// PREF: DNS prefetching <link rel="dns-prefetch">
-// Used for cross-origin connections to provide small performance improvements.
-// Disable DNS prefetching to prevent Firefox from proactively 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://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
-user_pref("network.dns.disablePrefetch", true);
-//user_pref("network.dns.disablePrefetchFromHTTPS", true); // DEFAULT
-
-// PREF: enable <link rel="preconnect"> tag and Link: rel=preconnect response header handling
-//user_pref("network.preconnect", true); // DEFAULT
-
-// PREF: preconnect to the autocomplete URL in the address bar
-// Firefox preloads URLs that autocomplete when a user types into the address bar.
-// Connects to destination server ahead of time, to avoid TCP handshake latency.
-// [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);
-
-// PREF: mousedown speculative connections on bookmarks and history [FF98+]
-//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.
-// Used to preload high-priority JavaScript modules for strategic performance improvements.
-// Module preloading allows developers to fetch JavaScript modules and dependencies
-// earlier to accelerate page loads. The browser downloads, parses, and compiles modules
-// referenced by links with this attribute in parallel with other resources, rather
-// than sequentially waiting to process each. Preloading reduces overall download times.
-// Browsers may also automatically preload dependencies without firing extra events.
-// Unlike other pre-connection tags (except rel=preload), this tag is mandatory for the browser.
-// [1] https://developer.mozilla.org/en-US/docs/Web/HTML/Attributes/rel/modulepreload
-//user_pref("network.modulepreload", true); // DEFAULT
-
-// PREF: link prefetching <link rel="prefetch">
-// Pre-populates the HTTP cache by prefetching same-site future navigation
-// resources or subresources used on those pages.
-// Enabling link prefetching allows Firefox to preload pages tagged as important.
-// The browser prefetches links with the prefetch-link tag, fetching resources
-// likely needed for the next navigation at low priority. When clicking a link
-// or loading a new page, prefetching stops and discards hints. Prefetching
-// downloads resources without executing them.
-// [NOTE] Since link prefetch uses the HTTP cache, it has a number of issues
-// with document prefetches, such as being potentially blocked by Cache-Control headers
-// (e.g. cache partitioning).
-// [1] https://developer.mozilla.org/en-US/docs/Glossary/Prefetch
-// [2] http://www.mecs-press.org/ijieeb/ijieeb-v7-n5/IJIEEB-V7-N5-2.pdf
-// [3] https://timkadlec.com/remembers/2020-06-17-prefetching-at-this-age/
-// [4] https://3perf.com/blog/link-rels/#prefetch
-// [5] https://developer.mozilla.org/docs/Web/HTTP/Link_prefetching_FAQ
-user_pref("network.prefetch-next", false);
-
-// PREF: Fetch Priority API [FF119+]
-// Indicates whether the `fetchpriority` attribute for elements which support it.
-// [1] https://web.dev/articles/fetch-priority
-// [2] https://nitropack.io/blog/post/priority-hints
-// [2] https://developer.mozilla.org/en-US/docs/Web/API/HTMLImageElement/fetchPriority
-// [3] https://developer.mozilla.org/en-US/docs/Web/API/HTMLLinkElement/fetchPriority
-//user_pref("network.fetchpriority.enabled", true);
-
-// PREF: early hints [FF120+]
-// [1] https://developer.mozilla.org/en-US/docs/Web/HTTP/Status/103
-// [2] https://developer.chrome.com/blog/early-hints/
-// [3] https://blog.cloudflare.com/early-hints/
-// [4] https://blog.cloudflare.com/early-hints-performance/
-//user_pref("network.early-hints.enabled", true);
-
-// PREF: `Link: rel=preconnect` in 103 Early Hint response [FF120+]
-// Used to warm most critical cross-origin connections to provide
-// performance improvements when connecting to them.
-// [NOTE] When 0, this is limited by "network.http.speculative-parallel-limit".
-//user_pref("network.early-hints.preconnect.enabled", true);
-//user_pref("network.early-hints.preconnect.max_connections", 10); // DEFAULT
-
-// PREF: Network Predictor (NP)
-// 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, 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
-// [2] https://www.ghacks.net/2014/05/11/seer-disable-firefox/
-// [3] https://github.com/dillbyrne/random-agent-spoofer/issues/238#issuecomment-110214518
-// [4] https://www.igvita.com/posa/high-performance-networking-in-google-chrome/#predictor
-user_pref("network.predictor.enabled", false);
-
-// PREF: Network Predictor fetch for resources ahead of time
-// Prefetch page resources based on past user behavior.
-//user_pref("network.predictor.enable-prefetch", false); // DEFAULT
-
-// PREF: make Network Predictor active when hovering over links
-// When hovering over links, Network Predictor uses past resource history to
-// preemptively request what will likely be needed instead of waiting for the document.
-// Predictive connections automatically open when hovering over links to speed up
-// loading, starting some work in advance.
-//user_pref("network.predictor.enable-hover-on-ssl", false); // DEFAULT
-
-// PREF: assign Network Predictor confidence levels
-// [NOTE] Keep in mind that Network Predictor must LEARN your browsing habits.
-// Editing these lower will cause more speculative connections to occur,
-// which reduces accuracy over time and has privacy implications.
-//user_pref("network.predictor.preresolve-min-confidence", 60); // DEFAULT
-//user_pref("network.predictor.preconnect-min-confidence", 90); // DEFAULT
-//user_pref("network.predictor.prefetch-min-confidence", 100); // DEFAULT
-
-// PREF: other Network Predictor values
-// [NOTE] Keep in mmind that Network Predictor must LEARN your browsing habits.
-//user_pref("network.predictor.prefetch-force-valid-for", 10); // DEFAULT; how long prefetched resources are considered valid and usable (in seconds) for the prediction modeling
-//user_pref("network.predictor.prefetch-rolling-load-count", 10); // DEFAULT; the maximum number of resources that Firefox will prefetch in memory at one time based on prediction modeling
-//user_pref("network.predictor.max-resources-per-entry", 250); // default=100
-//user_pref("network.predictor.max-uri-length", 1000); // default=500
+//user_pref("network.ssl_tokens_cache_capacity", 10240); // default=2048; more TLS token caching (fast reconnects)
 
 /****************************************************************************
  * SECTION: EXPERIMENTAL                                                    *
@@ -528,34 +412,8 @@ 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
-user_pref("layout.css.grid-template-masonry-value.enabled", true);
-
-// PREF: Prioritized Task Scheduling API [NIGHTLY]
-// [1] 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
-user_pref("dom.enable_web_task_scheduling", true);
-
-// PREF: CSS :has() selector [NIGHTLY]
-// Needed for some extensions, filters, and customizations.
-// [1] https://developer.mozilla.org/en-US/docs/Web/CSS/:has
-// [2] https://caniuse.com/css-has
-user_pref("layout.css.has-selector.enabled", true);
-
-// PREF: HTML Sanitizer API [NIGHTLY]
-// [1] https://developer.mozilla.org/en-US/docs/Web/API/Sanitizer
-// [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);
+// [2] https://www.smashingmagazine.com/native-css-masonry-layout-css-grid/
+//user_pref("layout.css.grid-template-masonry-value.enabled", true);
 
 /****************************************************************************
  * SECTION: TAB UNLOAD                                                      *
@@ -572,18 +430,18 @@ user_pref("dom.security.sanitizer.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.
-// Set this to some high value, e.g. 2/3 of total memory available in your system:
-// 4GB=2640, 8GB=5280, 16GB=10560, 32GB=21120, 64GB=42240
+// this value (in MiB).
+// Set this to some value, e.g. 4/5 of total memory available on your system:
+// 4GB=3276, 8GB=6553, 16GB=13107, 32GB=25698, 64GB=52429
 // [1] https://dev.to/msugakov/taking-firefox-memory-usage-under-control-on-linux-4b02
-//user_pref("browser.low_commit_space_threshold_mb", 2640); // default=200; WINDOWS LINUX
+//user_pref("browser.low_commit_space_threshold_mb", 3276); // 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", 33); // default=5; LINUX
+//user_pref("browser.low_commit_space_threshold_percent", 20); // default=5; LINUX
 
 // PREF: determine how long (in ms) tabs are inactive before they unload
 // 60000=1min; 300000=5min; 600000=10min (default)
@@ -603,6 +461,7 @@ user_pref("dom.security.sanitizer.enabled", true);
 // [2] https://firefox-source-docs.mozilla.org/dom/ipc/process_model.html#web-content-processes 
 //user_pref("dom.ipc.processCount", 8); // DEFAULT; Shared Web Content
 //user_pref("dom.ipc.processCount.webIsolated", 1); // default=4; Isolated Web Content
+//user_pref("dom.ipc.keepProcessesAlive.web", 4); // default=1 [HIDDEN OR REMOVED]
 
 // PREF: use one process for process preallocation cache
 //user_pref("dom.ipc.processPrelaunch.fission.number", 1); // default=3; Process Preallocation Cache

Peskyfox.js

@@ -3,19 +3,16 @@
  * Peskyfox                                                                 *
  * "Aquila non capit muscas"                                                *
  * priority: remove annoyances                                              *
- * version: 119                                                             *
+ * version: 148                                                             *
  * 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                          *
  ***************************************************************************/
 
 /****************************************************************************
  * SECTION: MOZILLA UI                                                      *
 ****************************************************************************/
 
-// PREF: Mozilla VPN
-// [1] https://github.com/yokoffing/Betterfox/issues/169
-user_pref("browser.privatebrowsing.vpnpromourl", "");
-    //user_pref("browser.vpn_promo.enabled", false);
-
 // PREF: disable about:addons' Recommendations pane (uses Google Analytics)
 user_pref("extensions.getAddons.showPane", false); // HIDDEN
 
@@ -27,13 +24,6 @@ user_pref("extensions.htmlaboutaddons.recommendations.enabled", false);
 // [SETTING] Privacy & Security>Firefox Data Collection & Use>Allow Firefox to make personalized extension recommendations
 user_pref("browser.discovery.enabled", false);
 
-// PREF: disable Fakespot integration [FF116+]
-// [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1840156#c0
-// [2] https://github.com/arkenfox/user.js/issues/1730
-// [3] https://www.fakespot.com/
-// [4] https://www.ghacks.net/2023/10/12/firefox-will-soon-tell-you-if-product-reviews-are-reliable/
-//user_pref("browser.shopping.experience2023.enabled", false); // [DEFAULT: false]
-
 // PREF: disable Firefox from asking to set as the default browser
 // [1] https://github.com/yokoffing/Betterfox/issues/166
 user_pref("browser.shell.checkDefaultBrowser", false);
@@ -46,12 +36,6 @@ user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features",
 // PREF: hide "More from Mozilla" in Settings
 user_pref("browser.preferences.moreFromMozilla", false);
 
-// PREF: only show List All Tabs icon when needed
-// 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: tab and about:config warnings
 //user_pref("browser.tabs.warnOnClose", false); // DEFAULT [FF94+]
 //user_pref("browser.tabs.warnOnCloseOtherTabs", true); // DEFAULT
@@ -59,7 +43,7 @@ user_pref("browser.tabs.tabmanager.enabled", false);
 user_pref("browser.aboutConfig.showWarning", false);
 
 // PREF: disable welcome notices
-//user_pref("browser.startup.homepage_override.mstone", "ignore"); // What's New page after updates; master switch
+user_pref("browser.startup.homepage_override.mstone", "ignore");
 user_pref("browser.aboutwelcome.enabled", false); // disable Intro screens
     //user_pref("startup.homepage_welcome_url", "");
     //user_pref("startup.homepage_welcome_url.additional", "");
@@ -68,6 +52,16 @@ 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
+user_pref("browser.profiles.enabled", true);
+
+// PREF: use native title bar buttons [LINUX]
+// [1] https://github.com/yokoffing/Betterfox/issues/320
+//user_pref("widget.gtk.non-native-titlebar-buttons.enabled", true);
+
+// PREF: disable search engine switcher in the URL bar [FF136+]
+//user_pref("browser.urlbar.scotchBonnet.enableOverride", false);
+
 /****************************************************************************
  * SECTION: THEME ADJUSTMENTS                                              *
 ****************************************************************************/
@@ -78,12 +72,6 @@ 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).
@@ -99,29 +87,40 @@ 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                                         *
+ * SECTION: AI                                                              *
 ****************************************************************************/
+// PREF: AI default controls
+// [1] https://blog.mozilla.org/en/firefox/how-to-use-ai-controls/
+user_pref("browser.ai.control.default", "blocked");
+user_pref("browser.ml.enable", false);
 
-// PREF: Cookie Banner handling
-// [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
-// 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.privateBrowsing", 1);
+// PREF: Translations
+//user_pref("browser.ai.control.translations", "blocked");
 
-// PREF: Cookie Banner global rules
-// Global rules that can handle a list of cookie banner libraries and providers on any site.
-// This is used for click rules that can handle common Consent Management Providers (CMP).
-user_pref("cookiebanners.service.enableGlobalRules", true);
+// PREF: Image alt text in Nightly PDF viewer
+//user_pref("browser.ai.control.pdfjsAltText", "blocked");
+
+// PREF: Tab group suggestions
+// [1] https://support.mozilla.org/kb/how-use-ai-enhanced-tab-groups
+//user_pref("browser.ai.control.smartTabGroups", "blocked");
+user_pref("browser.tabs.groups.smart.enabled", false);
+
+// PREF: Key points in link previews
+//user_pref("browser.ai.control.linkPreviewKeyPoints", "blocked");
+user_pref("browser.ml.linkPreview.enabled", false);
+
+// PREF: Chatbot in sidebar
+//user_pref("browser.ai.control.sidebarChatbot", "blocked");
+user_pref("browser.ml.chat.enabled", false);
+user_pref("browser.ml.chat.menu", false);
 
 /****************************************************************************
  * SECTION: TRANSLATIONS                                                    *
@@ -146,8 +145,9 @@ user_pref("full-screen-api.transition-duration.enter", "0 0"); // default=200 20
 user_pref("full-screen-api.transition-duration.leave", "0 0"); // default=200 200
 
 // PREF: disable fullscreen notice
-user_pref("full-screen-api.warning.delay", -1); // default=500
-user_pref("full-screen-api.warning.timeout", 0); // default=3000
+// [NOTE] Adjust to a sensible value, like 1250, if you have security concerns.
+//user_pref("full-screen-api.warning.timeout", 0); // default=3000; alt=1250
+//user_pref("full-screen-api.warning.delay", -1); // default=500
 
 /****************************************************************************
  * SECTION: FONT APPEARANCE                                                 *
@@ -162,8 +162,7 @@ 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", "");
-//user_pref("gfx.font_rendering.cleartype_params.force_gdi_classic_max_size", 6);
+//user_pref("gfx.font_rendering.cleartype_params.force_gdi_classic_for_families", ""); // DEFAULT FF135+
 //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);
@@ -179,17 +178,17 @@ user_pref("full-screen-api.warning.timeout", 0); // default=3000
 
 // PREF: minimize URL bar suggestions (bookmarks, history, open tabs)
 // Dropdown options in the URL bar:
-//user_pref("browser.urlbar.suggest.bookmark", true); // DEFAULT
-user_pref("browser.urlbar.suggest.engines", false);
 //user_pref("browser.urlbar.suggest.history", false);
+//user_pref("browser.urlbar.suggest.bookmark", true); // DEFAULT
+//user_pref("browser.urlbar.suggest.clipboard", false);
 //user_pref("browser.urlbar.suggest.openpage", false);
+user_pref("browser.urlbar.suggest.engines", false);
     //user_pref("browser.urlbar.suggest.searches", false);
+//user_pref("browser.urlbar.quickactions.enabled", false);
 //user_pref("browser.urlbar.suggest.weather", true); // DEFAULT [FF108]
     //user_pref("browser.urlbar.weather.ignoreVPN", false); // DEFAULT
-//user_pref("browser.urlbar.quickactions.enabled", false); // NIGHTLY
-//user_pref("browser.urlbar.shortcuts.quickactions", false); // NIGHTLY
-user_pref("browser.urlbar.suggest.calculator", true);
-user_pref("browser.urlbar.unitConversion.enabled", true);
+//user_pref("browser.urlbar.suggest.calculator", true); // [DEFAULT FF137+]
+//user_pref("browser.urlbar.unitConversion.enabled", true); // [DEFAULT FF141+]
 
 // PREF: disable dropdown suggestions with empty query
 //user_pref("browser.urlbar.suggest.topsites", false);
@@ -201,12 +200,18 @@ user_pref("browser.urlbar.trending.featureGate", false);
 
 // PREF: disable urlbar suggestions
 //user_pref("browser.urlbar.addons.featureGate", false); // [FF115+]
+//user_pref("browser.urlbar.amp.featureGate", false); // [FF141+] adMarketplace
+//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.wikipedia.featureGate", false); // [FF141+]
+//user_pref("browser.urlbar.clipboard.featureGate", false); // [FF118+] [DEFAULT: true FF125+]
+//user_pref("browser.urlbar.yelp.featureGate", false); // [FF124+] [DEFAULT: false]
 
-// PREF: disable urlbar clipboard suggestions [FF118+]
-//user_pref("browser.urlbar.clipboard.featureGate", false); // [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
@@ -226,6 +231,15 @@ user_pref("browser.urlbar.trending.featureGate", false);
 // disable=0
 //user_pref("browser.urlbar.maxRichResults", 5); // default=10
 
+// PREF: text fragments
+// [WARNING] Enabling can cause tab crashes [4]
+// [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1753933#c6
+// [2] https://developer.mozilla.org/en-US/docs/Web/Text_fragments
+// [3] https://web.dev/articles/text-fragments
+// [4] https://github.com/yokoffing/Betterfox/issues/397
+//user_pref("dom.text_fragments.enabled", true); // [DEFAULT]
+//user_pref("dom.text_fragments.create_text_fragment.enabled", true);
+
 /****************************************************************************
  * SECTION: AUTOPLAY                                                        *
 ****************************************************************************/
@@ -248,10 +262,10 @@ user_pref("browser.urlbar.trending.featureGate", false);
  * SECTION: NEW TAB PAGE                                                    *
 ****************************************************************************/
 
-// PREF: open windows/tabs from last session
+// PREF: startup / new tab page
 // 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>Restore previous session
+// [SETTING] General>Startup>Open previous windows and tabs
 //user_pref("browser.startup.page", 3);
 
 // PREF: set HOME+NEW WINDOW page to blank tab
@@ -271,20 +285,25 @@ user_pref("browser.urlbar.trending.featureGate", false);
 // [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.showSponsoredTopSites", false); // Sponsored shortcuts [FF83+]
+//user_pref("browser.newtabpage.activity-stream.feeds.topsites", false); // Shortcuts
+      user_pref("browser.newtabpage.activity-stream.showSponsoredTopSites", false); // Sponsored shortcuts [FF83+]
+//user_pref("browser.newtabpage.activity-stream.showWeather", false); // Weather [FF130+]
+    //user_pref("browser.newtabpage.activity-stream.system.showWeather", false); // hides Weather as an UI option
 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.showSponsoredCheckboxes", false); // [FF140+] Support Firefox
 //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);
-      //user_pref("browser.newtabpage.activity-stream.section.highlights.includePocket", false);
       //user_pref("browser.newtabpage.activity-stream.section.highlights.includeVisited", false);
 //user_pref("browser.newtabpage.activity-stream.feeds.snippets", false); // [DEFAULT]
 
+// PREF: wallpapers on New Tab [FF128+ NIGHTLY]
+//user_pref("browser.newtabpage.activity-stream.newtabWallpapers.enabled", false); // Wallpapers
+
 // 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/
@@ -301,8 +320,9 @@ user_pref("browser.newtabpage.activity-stream.feeds.section.topstories", false);
  * SECTION: POCKET                                                            *
 ******************************************************************************/
 
-// PREF: Disable built-in Pocket extension
-user_pref("extensions.pocket.enabled", false);
+// PREF: disable built-in Pocket extension
+// [1] https://support.mozilla.org/kb/future-of-pocket
+//user_pref("extensions.pocket.enabled", false); // DEFAULT
       //user_pref("extensions.pocket.api"," ");
       //user_pref("extensions.pocket.oAuthConsumerKey", " ");
       //user_pref("extensions.pocket.site", " ");
@@ -312,31 +332,33 @@ user_pref("extensions.pocket.enabled", false);
  * SECTION: DOWNLOADS                                 *
 ******************************************************************************/
 
-// PREF: autohide the downloads button
-//user_pref("browser.download.autohideButton", true); // DEFAULT
-
 // PREF: choose download location
 // [SETTING] To set your default "downloads": General>Downloads>Save files to...
 // 0=desktop, 1=downloads (default), 2=last used
 //user_pref("browser.download.folderList", 1); // DEFAULT
 
-// PREF: always ask where to download
+// PREF: always ask how to handle new mimetypes [FF101+]
 // Enforce user interaction for greater security.
+// [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);
+
+// PREF: always ask where to download
+// [OPTIONAL HARDENING] Enforce user interaction for greater security.
 // [SETTING] General>Files and Applications>Downloads>Always ask you where to save files
 // [DIALOGUE] "Ask whether to open or save files"
 // true=direct download (default)
 // false=the user is asked what to do
-// [1] https://github.com/yokoffing/Betterfox/issues/216
-user_pref("browser.download.useDownloadDir", false);
+// [1] https://github.com/yokoffing/Betterfox/issues/267
+//user_pref("browser.download.useDownloadDir", false);
     //user_pref("browser.download.dir", "C:\Users\<YOUR_USERNAME>\AppData\Local\Temp"); // [WINDOWS]
 
-// PREF: always ask how to handle new mimetypes
-// Enforce user interaction for greater security.
-// [SETTING] General>Files and Applications>Applications>What should Firefox do with other files?>Ask whether to open or save files
-user_pref("browser.download.always_ask_before_handling_new_types", true);
+// PREF: autohide the downloads button
+//user_pref("browser.download.autohideButton", true); // DEFAULT
 
-// PREF: disable downloads panel opening on every download
-// Controls whether to open the downloads panel every time a download begins.
+// PREF: disable download panel opening on every download [non-functional?]
+// Controls whether to open the download panel every time a download begins.
 // [NOTE] The first download ever ran in a new profile will still open the panel.
 //user_pref("browser.download.alwaysOpenPanel", false);
 
@@ -371,6 +393,17 @@ user_pref("browser.download.open_pdf_attachments_inline", true);
 // [NOTE] "page-width" not needed if using sidebar on load
 //user_pref("pdfjs.defaultZoomValue", page-width);
 
+/****************************************************************************
+ * SECTION: DOM (DOCUMENT OBJECT MODEL)                                     *
+****************************************************************************/
+// PREF: prevent scripts from moving and resizing open windows
+//user_pref("dom.disable_window_move_resize", true);
+
+// PREF: disable beforeunload event
+// [WHY] The method is commonly abused by scam and spyware sites.
+// [1] https://developer.mozilla.org/docs/Web/API/Window/beforeunload_event
+//user_pref("dom.disable_beforeunload", true);
+
 /****************************************************************************
  * SECTION: TAB BEHAVIOR                                                    *
 ****************************************************************************/
@@ -394,7 +427,7 @@ user_pref("browser.download.open_pdf_attachments_inline", true);
 // 0 = force all new windows opened by JavaScript into tabs
 // [NOTE] Most advertising popups also open in new windows with values set
 // [1] https://kb.mozillazine.org/About:config_entries
-//user_pref("browser.link.open_newwindow.restriction", 0);
+//user_pref("browser.link.open_newwindow.restriction", 2); // DEFAULT
 
 // PREF: override <browser.link.open_newwindow> for external links
 // Set if a different destination for external links is needed
@@ -446,9 +479,6 @@ user_pref("findbar.highlightAll", true);
 // [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/10089
 //user_pref("middlemouse.contentLoadURL", false);
 
-// PREF: Prevent scripts from moving and resizing open windows
-//user_pref("dom.disable_window_move_resize", true);
-
 // PREF: insert new tabs after groups like it
 // true(default) = open new tabs to the right of the parent tab
 // false = new tabs are opened at the far right of the tab bar
@@ -484,21 +514,19 @@ 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+]
+// [1] https://github.com/yokoffing/Betterfox/issues/309
+//user_pref("browser.tabs.hoverPreview.enabled", true);
+    //user_pref("browser.tabs.hoverPreview.showThumbnails", true); // DEFAULT
+
 /****************************************************************************
- * SECTION: UNCATEGORIZED                                                   *
+ * SECTION: KEYBOARD AND SHORTCUTS                                          *
  ****************************************************************************/
 
 // 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
@@ -507,6 +535,26 @@ 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
@@ -515,9 +563,25 @@ 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);
 
@@ -532,44 +596,40 @@ 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: hide image placeholders
-//user_pref("browser.display.show_image_placeholders", false);
+// PREF: adjust the minimum tab width
+// Can be overridden by userChrome.css
+//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 (useful if you're making your own CSS theme)
+// PREF: enable ASRouter Devtools at about:newtab#devtools
+// 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
-//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);
+/****************************************************************************
+ * SECTION: IMAGE AND MEDIA HANDLING                                        *
+ ****************************************************************************/
 
 // PREF: JPEG XL image format [NIGHTLY]
 // May not affect anything on ESR/Stable channel [2].
-// [TEST] https://jpegxl.io/tutorials/firefox/#firefoxjpegxltutorial
+// [TEST] https://www.jpegxl.io/firefox#firefox-jpegxl-tutorial
 // [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);

README.md

@@ -1,32 +1,24 @@
-![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)
+![Badge](https://hitscounter.dev/api/hit?url=https%3A%2F%2Fgithub.com%2Fyokoffing%2FBetterfox&label=&icon=github&color=%23198754&message=&style=flat&tz=US%2FEastern)![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)
 
 # Betterfox
 [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/).
 
-:new: Now with [ESR support](https://github.com/yokoffing/Betterfox/tree/esr115#betterfox-esr).
-
 ## Made for everyday browsing
-**A secure, blazing fast browsing experience. Without breakage.**
+Make Firefox more private and secure — without using third-party code.
 
-Betterfox is an opinionated preference list inspired by the [law of diminishing returns](https://pmctraining.com/site/wp-content/uploads/2018/04/Law-of-Diminishing-Returns-CHART.png) and the [minimum effective dose](https://medium.com/the-mission/less-is-more-the-minimum-effective-dose-e6d56625931e).
+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).
 
-## Getting started
-*If you don't have it already: [Get Firefox](https://www.mozilla.org/en-US/firefox/all/#product-desktop-release)*
-
-1) Create a [backup profile](https://github.com/yokoffing/Betterfox/wiki/Backup).
-2) Download the user.js file [here](https://raw.githubusercontent.com/yokoffing/Betterfox/main/user.js) (Right click > `Save Link As…`).
-3) 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.
-4) Open Firefox. In the URL bar, type `about:profiles` and press **Enter**.
-5) For the profile you want to use (or use default), click **Open Folder** in the **Root Directory** section.
-6) Move the `user.js` file into the folder.
+## Required reading
+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.
+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.
+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 [NextDNS](https://nextdns.io/?from=xujj63g5), and check out our configuration [guide](https://github.com/yokoffing/NextDNS-Config).
-    * See how to [quickly enable](https://support.mozilla.org/en-US/kb/dns-over-https) **secure DNS** in Firefox.
+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.
 
 ## Simple goals
 1) **Minimalism:** get what isn't needed out of the way
@@ -35,27 +27,33 @@ Betterfox is an opinionated preference list inspired by the [law of diminishing
 
 ## Simple configs
 
-`Fastfox`, `Securefox`, `Peskyfox`, and `Smoothfox` are guides to settings within Firefox.
-
-The `user.js` — a configuration file that controls Firefox settings — is curated from these guides.
+`Securefox`, `Peskyfox`, and `Smoothfox` are guides to settings within Firefox. The `user.js` — a configuration file that controls Firefox settings — is curated from these guides.
 
 | List      | Description |
 |:---------:|-------------|
-| [Fastfox](https://github.com/yokoffing/Betterfox/blob/main/Fastfox.js)   | Immensely increase Firefox's browsing speed. Give Chrome a run for its money!|
-| [Securefox](https://github.com/yokoffing/Betterfox/blob/main/Securefox.js) | [Global Privacy Control](https://blog.mozilla.org/netpolicy/2021/10/28/implementing-global-privacy-control/). [HTTPS-by-Default](https://blog.mozilla.org/security/2021/08/10/firefox-91-introduces-https-by-default-in-private-browsing/). [Total Cookie Protection](https://blog.mozilla.org/security/2021/02/23/total-cookie-protection/) with [site isolation](https://blog.mozilla.org/security/2021/05/18/introducing-site-isolation-in-firefox/). Enhanced [state](https://developer.mozilla.org/en-US/docs/Web/Privacy/State_Partitioning) and [network](https://blog.mozilla.org/security/2021/01/26/supercookie-protections/) partitioning. [Telemetry](https://github.com/yokoffing/Betterfox/blob/e66a549985f6b0db4b14226904b8c09eaaea998f/Securefox.js#L1262-L1265) disabled. |
-| [Peskyfox](https://github.com/yokoffing/Betterfox/blob/main/Peskyfox.js)  | Unclutter the new tab page. Remove [Pocket](https://support.mozilla.org/en-US/kb/what-pocket). Restore [compact mode](https://support.mozilla.org/en-US/kb/compact-mode-workaround-firefox) as an option. Stop webpage notifications, pop-ups, and other annoyances. |
-| [Smoothfox](https://github.com/yokoffing/Betterfox/blob/main/Smoothfox.js) | Get Edge-like smooth scrolling on your favorite browser — or choose something more your style. |
 | [user.js](https://github.com/yokoffing/Betterfox/blob/main/user.js) | All the essentials. None of the breakage. This is your `user.js`. |
+| [Securefox](https://github.com/yokoffing/Betterfox/blob/main/Securefox.js) | Protect user data without causing site breakage. |
+| [Peskyfox](https://github.com/yokoffing/Betterfox/blob/main/Peskyfox.js)  | Provide a clean, distraction-free browsing experience. |
+| [Smoothfox](https://github.com/yokoffing/Betterfox/blob/main/Smoothfox.js)<br>(optional) | Get Edge-like smooth scrolling on your favorite browser — or choose something more your style. |
 
 ## Recognition
 
 ### Browser Integration
-* [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)
+> [!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/tree/stable/prefs) (July 2024)
+* [FireDragon](https://github.com/dr460nf1r3/firedragon-browser/blob/master/README.md) | [files](https://github.com/dr460nf1r3/firedragon-browser/blob/55fc6e5029542cd90fabe23cb44c89568d74d006/firedragon.cfg#L822-L824) (Jan 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)
 * [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) 
@@ -66,6 +64,11 @@ 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
+* [How I Set Up Firefox for True Privacy ](https://dtptips.com/how-i-set-up-firefox-for-true-privacy-hint-its-not-the-default-setup/) (Oct 2025)
+* [Phishing Bank Logins Over Plain HTTP in 2025](https://vrls.ws/posts/phishing-bank-logins-over-plain-http-in-2025/) (Oct 2025)
+* [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 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)
 
@@ -79,9 +82,10 @@ 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! Thanks a lot for the suggestions!" - [whotheff](https://old.reddit.com/r/firefox/comments/z5auzi/firefox_not_properly_usingrecognizing_gpu_poor/iy36hyz/)
+* "FF is now much snappier!" - [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
@@ -90,12 +94,12 @@ If you like the project, leave a :star: (top right) and become a [stargazer](htt
 
 [![Stargazers repo roster for @yokoffing/Betterfox](https://reporoster.com/stars/dark/yokoffing/Betterfox)](https://github.com/yokoffing/Betterfox/stargazers)
 
+<a href='https://ko-fi.com/Q5Q5G8EPH' target='_blank'><img height='36' style='border:0px;height:36px;' src='https://storage.ko-fi.com/cdn/kofi2.png?v=3' border='0' alt='Buy Me a Coffee at ko-fi.com' /></a>
+<noscript><a href="https://liberapay.com/yokoffing/donate"><img alt="Donate using Liberapay" src="https://liberapay.com/assets/widgets/donate.svg"></a></noscript>
+
 ## Credit
-* This repository benefits from the ongoing research provided by [arkenfox](https://github.com/arkenfox/user.js).
+* 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.
-
-<div align='center'>
-  <a href='https://www.websitecounterfree.com'><img src='https://www.websitecounterfree.com/c.php?d=9&id=19653&s=1' border='0' alt='Free Website Counter'></a><br / >
-since 23 July 2022</div>

Smoothfox.js

@@ -3,7 +3,7 @@
  * Smoothfox                                                                            *
  * "Faber est suae quisque fortunae"                                                    *
  * priority: better scrolling                                                           *
- * version: 10 October 2023                                                             *
+ * version: 137                                                                       *
  * url: https://github.com/yokoffing/Betterfox                                          *
  ***************************************************************************************/
 
@@ -16,10 +16,14 @@
 // credit: https://github.com/black7375/Firefox-UI-Fix
 // only sharpen scrolling
 user_pref("apz.overscroll.enabled", true); // DEFAULT NON-LINUX
-user_pref("mousewheel.min_line_scroll_amount", 10); // 10-40; adjust this number to your liking; default=5
+user_pref("general.smoothScroll", true); // DEFAULT
+user_pref("mousewheel.min_line_scroll_amount", 10); // 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
+// Firefox Nightly only:
+// [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1846935
+user_pref("general.smoothScroll.msdPhysics.enabled", false); // [FF122+ Nightly]
 
 /****************************************************************************************
  * OPTION: INSTANT SCROLLING (SIMPLE ADJUSTMENT)                                       *
@@ -28,6 +32,9 @@ user_pref("general.smoothScroll.stopDecelerationWeighting", "0.6"); // default=.
 user_pref("apz.overscroll.enabled", true); // DEFAULT NON-LINUX
 user_pref("general.smoothScroll", true); // DEFAULT
 user_pref("mousewheel.default.delta_multiplier_y", 275); // 250-400; adjust this number to your liking
+// Firefox Nightly only:
+// [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1846935
+user_pref("general.smoothScroll.msdPhysics.enabled", false); // [FF122+ Nightly]
 
 /****************************************************************************************
  * OPTION: SMOOTH SCROLLING                                                            *
@@ -51,8 +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", 2.0);
+user_pref("general.smoothScroll.msdPhysics.slowdownMinDeltaRatio", "2");
 user_pref("general.smoothScroll.msdPhysics.slowdownSpringConstant", 250);
-user_pref("general.smoothScroll.currentVelocityWeighting", 1.0);
-user_pref("general.smoothScroll.stopDecelerationWeighting", 1.0);
+user_pref("general.smoothScroll.currentVelocityWeighting", "1");
+user_pref("general.smoothScroll.stopDecelerationWeighting", "1");
 user_pref("mousewheel.default.delta_multiplier_y", 300); // 250-400; adjust this number to your liking

install.py

@@ -0,0 +1,299 @@
+#!/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(),
+    },
+    {
+        "command": [str(Path(getenv("LOCALAPPDATA") or "").joinpath("Mozilla Firefox/firefox").resolve())],
+        "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(),
+    },
+    # macOS
+    {
+        "command": ["/Applications/Firefox.app/Contents/MacOS/firefox"],
+        "root": Path.home().joinpath("Library/Application Support/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 "/zen/" in file.filename and not args.zen:
+            continue
+        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"))),
+    argparser.add_argument("--zen", "-z", action="store_true", default=False, help="Install user.js for the Zen browser instead. Defaults to False"),
+    
+    
+    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)
+

librewolf.overrides.cfg

@@ -1,114 +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 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                                                           *
-****************************************************************************/

personal/user-overrides.js

@@ -19,43 +19,47 @@
 
 /** 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 load test ***/
-user_pref("network.dns.disablePrefetchFromHTTPS", false);
-//user_pref("network.prefetch-next", true);
-user_pref("network.predictor.enabled", true);
-user_pref("network.predictor.enable-prefetch", true);
-user_pref("network.predictor.enable-hover-on-ssl", true);
+// 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("privacy.trackingprotection.allow_list.convenience.enabled", false); // disable Strict allowlist of convenience features
+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.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("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", "unavailable"); // 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("signon.firefoxRelay.feature", ""); // unselect suggestions from Firefox Relay for clean UI
 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
 user_pref("browser.safebrowsing.downloads.remote.block_uncommon", false); // clean up UI; not needed in user.js if remote downloads are disabled
 user_pref("browser.safebrowsing.allowOverride", false); // do not allow user to override SB
-user_pref("dom.push.enabled", false); // disable Push API; breaks FF Sync and Site Notifications
 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
+user_pref("captivedetect.canonicalURL", ""); // disable captive portal detection
+user_pref("network.captive-portal-service.enabled", false); // disable captive portal detection
+user_pref("network.connectivity-service.enabled", false); // disable captive portal detection
+user_pref("browser.download.enableDeletePrivate", true); // Delete files downloaded in private browsing when all private windows are closed
+user_pref("browser.download.deletePrivateChosen", true); // Delete files downloaded in private browsing when all private windows are closed
+user_pref("browser.download.deletePrivate", true); // Delete files downloaded in private browsing when all private windows are closed
 
 /** PESKYFOX ***/
 user_pref("devtools.accessibility.enabled", false); // removes un-needed "Inspect Accessibility Properties" on right-click
@@ -65,65 +69,76 @@ 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.folderList", 0); // 0=desktop, 1=downloads, 2=last used
+//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.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.translations.autoTranslate", true); // make Firefox auto-translate non-English pages
 user_pref("browser.urlbar.suggest.history", false); // Browsing history; hide URL bar dropdown suggestions
 user_pref("browser.urlbar.suggest.bookmark", false); // Bookmarks; hide URL bar dropdown suggestions
 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.suggest.quickactions", false); // Quick actions; hide URL bar dropdown suggestions
-//user_pref("browser.urlbar.suggest.searches", false); // (needed?); hide URL bar dropdown suggestions
+user_pref("browser.urlbar.quicksuggest.enabled", false); // hide Firefox Suggest UI in the settings
 //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("layout.word_select.eat_space_to_next_word", false); // do not select the space next to a word when selecting a word
+//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("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); // dots for spell check errors
+user_pref("ui.SpellCheckerUnderlineStyle", 1); // [HIDDEN] 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("gfx.canvas.accelerated", true); // DEFAULT NON-WINDOWS; enable if not using an integrated GPU
-user_pref("browser.startup.preXulSkeletonUI", false); // WINDOWS
+//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.gamma", 898); // 1000-2200; https://www.reddit.com/r/firefox/comments/10ed7o2/comment/j4qar9y/
+//user_pref("gfx.font_rendering.cleartype_params.enhanced_contrast", 100);
 //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
-/** for 12 GB+ RAM ***/
-user_pref("browser.cache.disk.enable", false);
-user_pref("browser.cache.memory.capacity", 256000); // default= -1 (32768)
-user_pref("browser.cache.memory.max_entry_size", 10240); // default=5120 (5 MB)
-user_pref("media.memory_cache_max_size", 131072); // default=8192; AF=65536
-user_pref("media.memory_caches_combined_limit_kb", 1048576); // default=524288
-user_pref("media.memory_caches_combined_limit_pc_sysmem", 10); // default=5
+
+/** DELETE IF NOT ENTERPRISE WINDOWS LAPTOP ***/
+user_pref("urlclassifier.trackingSkipURLs", ""); // do not allow embedded tweets, Instagram, Reddit, and Tiktok posts
+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)
@@ -132,3 +147,11 @@ 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
+
+

user.js

@@ -10,72 +10,28 @@
 /****************************************************************************
  * Betterfox                                                                *
  * "Ad meliora"                                                             *
- * version: 119                                                             *
+ * version: 149                                                             *
  * url: https://github.com/yokoffing/Betterfox                              *
 ****************************************************************************/
 
 /****************************************************************************
  * SECTION: FASTFOX                                                         *
 ****************************************************************************/
-/** GENERAL ***/
-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.jsbc_compression_level", 3);
-
-/** MEDIA CACHE ***/
-user_pref("media.memory_cache_max_size", 65536);
-user_pref("media.cache_readahead_limit", 7200);
-user_pref("media.cache_resume_threshold", 3600);
-
-/** IMAGE CACHE ***/
-user_pref("image.mem.decode_bytes_at_a_time", 32768);
-
-/** NETWORK ***/
-user_pref("network.buffer.cache.size", 262144);
-user_pref("network.buffer.cache.count", 128);
-user_pref("network.http.max-connections", 1800);
-user_pref("network.http.max-persistent-connections-per-server", 10);
-user_pref("network.http.max-urgent-start-excessive-connections-per-host", 5);
-user_pref("network.http.pacing.requests.enabled", false);
-user_pref("network.dnsCacheExpiration", 3600);
-user_pref("network.dns.max_high_priority_threads", 8);
-user_pref("network.ssl_tokens_cache_capacity", 10240);
-
-/** SPECULATIVE LOADING ***/
-user_pref("network.dns.disablePrefetch", true);
-user_pref("network.prefetch-next", false);
-user_pref("network.predictor.enabled", false);
-
-/** EXPERIMENTAL ***/
-user_pref("layout.css.grid-template-masonry-value.enabled", true);
-user_pref("dom.enable_web_task_scheduling", true);
-user_pref("layout.css.has-selector.enabled", true);
-user_pref("dom.security.sanitizer.enabled", true);
+user_pref("gfx.canvas.accelerated.cache-size", 256); // reset pref
 
 /****************************************************************************
  * 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);
 user_pref("privacy.globalprivacycontrol.enabled", true);
-user_pref("privacy.globalprivacycontrol.functionality.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);
+user_pref("privacy.antitracking.isolateContentScriptResources", true);
+user_pref("security.csp.reporting.enabled", false);
 
 /** SSL / TLS ***/
 user_pref("security.ssl.treat_unsafe_negotiation_as_broken", true);
@@ -83,43 +39,45 @@ user_pref("browser.xul.error_pages.expert_bad_cert", true);
 user_pref("security.tls.enable_0rtt_data", false);
 
 /** DISK AVOIDANCE ***/
+user_pref("browser.cache.disk.enable", false);
 user_pref("browser.privatebrowsing.forceMediaMemoryCache", true);
+user_pref("media.memory_cache_max_size", 65536);
 user_pref("browser.sessionstore.interval", 60000);
 
 /** SHUTDOWN & SANITIZING ***/
 user_pref("privacy.history.custom", true);
+user_pref("browser.privatebrowsing.resetPBM.enabled", true);
+
+/** 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);
 
 /** 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.suggest.quicksuggest.sponsored", false);
-user_pref("browser.urlbar.suggest.quicksuggest.nonsponsored", false);
+user_pref("browser.urlbar.quicksuggest.enabled", false);
+user_pref("browser.urlbar.groupLabels.enabled", 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);
+/** HTTPS-ONLY MODE ***/
+user_pref("dom.security.https_only_mode", true);
+user_pref("dom.security.https_only_mode_error_page_user_suggestions", true);
 
 /** PASSWORDS ***/
-user_pref("signon.rememberSignons", false);
 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);
 
-/** ADDRESS + CREDIT CARD MANAGER ***/
-user_pref("extensions.formautofill.addresses.enabled", false);
-user_pref("extensions.formautofill.creditCards.enabled", 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);
@@ -127,9 +85,8 @@ 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);
+/** VARIOUS ***/
+user_pref("pdfjs.enableScripting", false);
 
 /** SAFE BROWSING ***/
 user_pref("browser.safebrowsing.downloads.remote.enabled", false);
@@ -137,9 +94,10 @@ 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://location.services.mozilla.com/v1/geolocate?key=%MOZILLA_API_KEY%");
+user_pref("geo.provider.network.url", "https://beacondb.net/v1/geolocate");
+user_pref("browser.search.update", false);
 user_pref("permissions.manager.defaultsUrl", "");
-user_pref("webchannel.allowObject.urlWhitelist", "");
+user_pref("extensions.getAddons.cache.enabled", false);
 
 /** TELEMETRY ***/
 user_pref("datareporting.policy.dataSubmissionEnabled", false);
@@ -156,9 +114,9 @@ user_pref("toolkit.telemetry.firstShutdownPing.enabled", false);
 user_pref("toolkit.telemetry.coverage.opt-out", true);
 user_pref("toolkit.coverage.opt-out", true);
 user_pref("toolkit.coverage.endpoint.base", "");
-user_pref("browser.ping-centre.telemetry", false);
 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);
@@ -168,18 +126,11 @@ 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                                                        *
 ****************************************************************************/
 /** MOZILLA UI ***/
-user_pref("browser.privatebrowsing.vpnpromourl", "");
 user_pref("extensions.getAddons.showPane", false);
 user_pref("extensions.htmlaboutaddons.recommendations.enabled", false);
 user_pref("browser.discovery.enabled", false);
@@ -187,45 +138,40 @@ 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.startup.homepage_override.mstone", "ignore");
 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);
-user_pref("cookiebanners.service.enableGlobalRules", true);
+/** AI ***/
+user_pref("browser.ai.control.default", "blocked");
+user_pref("browser.ml.enable", false);
+user_pref("browser.ml.chat.enabled", false);
+user_pref("browser.ml.chat.menu", false);
+user_pref("browser.tabs.groups.smart.enabled", false);
+user_pref("browser.ml.linkPreview.enabled", false);
 
 /** 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);
 
 /** NEW TAB PAGE ***/
-user_pref("browser.newtabpage.activity-stream.feeds.topsites", false);
+user_pref("browser.newtabpage.activity-stream.default.sites", "");
+user_pref("browser.newtabpage.activity-stream.showSponsoredTopSites", false);
 user_pref("browser.newtabpage.activity-stream.feeds.section.topstories", false);
-
-/*** POCKET ***/
-user_pref("extensions.pocket.enabled", false);
+user_pref("browser.newtabpage.activity-stream.showSponsored", false);
+user_pref("browser.newtabpage.activity-stream.showSponsoredCheckboxes", false);
 
 /** DOWNLOADS ***/
-user_pref("browser.download.useDownloadDir", false);
-user_pref("browser.download.always_ask_before_handling_new_types", true);
 user_pref("browser.download.manager.addToRecentDocs", false);
 
 /** PDF ***/
@@ -237,6 +183,13 @@ user_pref("browser.menu.showViewImageInfo", true);
 user_pref("findbar.highlightAll", true);
 user_pref("layout.word_select.eat_space_to_next_word", false);
 
+/****************************************************************************
+ * SECTION: SMOOTHFOX                                                       *
+****************************************************************************/
+// visit https://github.com/yokoffing/Betterfox/blob/main/Smoothfox.js
+// Enter your scrolling overrides below this line:
+
+
 /****************************************************************************
  * START: MY OVERRIDES                                                      *
 ****************************************************************************/
@@ -244,12 +197,10 @@ 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                                                           *
 ****************************************************************************/
+
+
+

waterfox/user.js

@@ -0,0 +1,115 @@
+//
+/* 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.
+ */
+
+/****************************************************************************
+ * Betterfox Aqua                                                           *
+ * "Ex nihilo nihil fit"                                                    *
+ * version: 140.8                                                           *
+ * url: https://github.com/yokoffing/Betterfox                              *
+****************************************************************************/
+
+/****************************************************************************
+ * 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("privacy.antitracking.isolateContentScriptResources", true); // needed for next ESR if not a default pref
+user_pref("security.csp.reporting.enabled", false);
+
+/** DISK AVOIDANCE ***/
+user_pref("browser.cache.disk.enable", false);
+//user_pref("browser.privatebrowsing.forceMediaMemoryCache", true); // default
+user_pref("media.memory_cache_max_size", 65536);
+user_pref("browser.sessionstore.interval", 60000);
+
+/** SHUTDOWN & SANITIZING ***/
+user_pref("privacy.history.custom", true);
+user_pref("browser.privatebrowsing.resetPBM.enabled", true);
+
+/** 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);
+
+/** SEARCH / URL BAR ***/
+//user_pref("browser.urlbar.trimHttps", true); // optional
+//user_pref("browser.urlbar.untrimOnUserInteraction.featureGate", true); // optional
+user_pref("browser.search.suggest.enabled", false);
+//user_pref("browser.urlbar.quicksuggest.enabled", false);
+user_pref("browser.urlbar.groupLabels.enabled", false);
+user_pref("browser.formfill.enable", false);
+
+/** HTTPS-ONLY MODE ***/
+user_pref("dom.security.https_only_mode", true);
+user_pref("dom.security.https_only_mode_error_page_user_suggestions", true);
+
+/** PASSWORDS ***/
+user_pref("signon.formlessCapture.enabled", false);
+user_pref("signon.privateBrowsingCapture.enabled", false);
+
+/** EXTENSIONS ***/
+user_pref("extensions.enabledScopes", 5);
+
+/** MOZILLA ***/
+user_pref("permissions.default.desktop-notification", 2);
+//user_pref("permissions.default.geo", 2); // optional
+//user_pref("geo.provider.network.url", "https://beacondb.net/v1/geolocate"); // blank
+user_pref("browser.search.update", false);
+user_pref("permissions.manager.defaultsUrl", "");
+user_pref("extensions.getAddons.cache.enabled", false);
+
+/****************************************************************************
+ * SECTION: PESKYFOX                                                        *
+****************************************************************************/
+/** MOZILLA UI ***/
+user_pref("browser.shell.checkDefaultBrowser", false);
+user_pref("browser.startup.homepage_override.mstone", "ignore");
+user_pref("browser.aboutwelcome.enabled", false);
+
+/** THEME ADJUSTMENTS ***/
+user_pref("browser.privateWindowSeparation.enabled", false); // WINDOWS
+
+/** 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.timeout", 0);
+
+/** NEW TAB PAGE ***/
+user_pref("browser.newtabpage.activity-stream.default.sites", "");
+user_pref("browser.newtabpage.activity-stream.showSponsoredTopSites", false);
+user_pref("browser.newtabpage.activity-stream.feeds.section.topstories", false);
+user_pref("browser.newtabpage.activity-stream.showSponsoredCheckboxes", false);
+
+/** TAB BEHAVIOR ***/
+//user_pref("browser.link.open_newwindow.restriction", 2); // restore FF default
+
+/****************************************************************************
+ * SECTION: SMOOTHFOX                                                       *
+****************************************************************************/
+// visit https://github.com/yokoffing/Betterfox/blob/main/Smoothfox.js
+// Enter your scrolling overrides below this line:
+
+
+/****************************************************************************
+ * 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:
+
+
+/****************************************************************************
+ * END: BETTERFOX                                                           *
+****************************************************************************/

zen/user.js

@@ -0,0 +1,219 @@
+//
+/* 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: 148                                                             *
+ * url: https://github.com/yokoffing/Betterfox                              *
+****************************************************************************/
+
+/****************************************************************************
+ * SECTION: SECUREFOX                                                       *
+****************************************************************************/
+/** TRACKING PROTECTION ***/
+user_pref("browser.contentblocking.category", "strict");
+user_pref("browser.download.start_downloads_in_tmp_dir", true);
+user_pref("browser.uitour.enabled", false);
+user_pref("privacy.globalprivacycontrol.enabled", true);
+
+/** OCSP & CERTS / HPKP ***/
+user_pref("security.OCSP.enabled", 0);
+user_pref("privacy.antitracking.isolateContentScriptResources", true);
+user_pref("security.csp.reporting.enabled", false);
+
+/** SSL / TLS ***/
+user_pref("security.ssl.treat_unsafe_negotiation_as_broken", true);
+user_pref("browser.xul.error_pages.expert_bad_cert", true);
+user_pref("security.tls.enable_0rtt_data", false);
+
+/** DISK AVOIDANCE ***/
+user_pref("browser.cache.disk.enable", false);
+user_pref("browser.privatebrowsing.forceMediaMemoryCache", true);
+user_pref("media.memory_cache_max_size", 65536);
+user_pref("browser.sessionstore.interval", 60000);
+
+/** SHUTDOWN & SANITIZING ***/
+user_pref("privacy.history.custom", true);
+user_pref("browser.privatebrowsing.resetPBM.enabled", true);
+
+/** 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);
+
+/** 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.search.suggest.enabled", false);
+user_pref("browser.urlbar.quicksuggest.enabled", false);
+user_pref("browser.urlbar.groupLabels.enabled", false);
+user_pref("browser.formfill.enable", false);
+user_pref("network.IDN_show_punycode", true);
+
+/** HTTPS-ONLY MODE ***/
+user_pref("dom.security.https_only_mode", true);
+user_pref("dom.security.https_only_mode_error_page_user_suggestions", true);
+
+/** 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);
+
+/** EXTENSIONS ***/
+user_pref("extensions.enabledScopes", 5);
+
+/** HEADERS / REFERERS ***/
+user_pref("network.http.referer.XOriginTrimmingPolicy", 2);
+
+/** CONTAINERS ***/
+user_pref("privacy.userContext.ui.enabled", true);
+
+/** VARIOUS ***/
+user_pref("pdfjs.enableScripting", false);
+
+/** 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", "");
+user_pref("extensions.getAddons.cache.enabled", false);
+
+/** TELEMETRY ***/
+user_pref("datareporting.policy.dataSubmissionEnabled", false);
+user_pref("datareporting.healthreport.uploadEnabled", false);
+user_pref("toolkit.telemetry.unified", false);
+user_pref("toolkit.telemetry.enabled", false);
+user_pref("toolkit.telemetry.server", "data:,");
+user_pref("toolkit.telemetry.archive.enabled", false);
+user_pref("toolkit.telemetry.newProfilePing.enabled", false);
+user_pref("toolkit.telemetry.shutdownPingSender.enabled", false);
+user_pref("toolkit.telemetry.updatePing.enabled", false);
+user_pref("toolkit.telemetry.bhrPing.enabled", false);
+user_pref("toolkit.telemetry.firstShutdownPing.enabled", false);
+user_pref("toolkit.telemetry.coverage.opt-out", true);
+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);
+user_pref("app.normandy.enabled", false);
+user_pref("app.normandy.api_url", "");
+
+/** CRASH REPORTS ***/
+user_pref("breakpad.reportURL", "");
+user_pref("browser.tabs.crashReporting.sendReport", false);
+
+/****************************************************************************
+ * SECTION: PESKYFOX                                                        *
+****************************************************************************/
+/** MOZILLA UI ***/
+user_pref("extensions.getAddons.showPane", false);
+user_pref("extensions.htmlaboutaddons.recommendations.enabled", false);
+user_pref("browser.discovery.enabled", false);
+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.aboutConfig.showWarning", false);
+user_pref("browser.startup.homepage_override.mstone", "ignore");
+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.privateWindowSeparation.enabled", false); // WINDOWS
+
+/** AI ***/
+user_pref("browser.ml.enable", false);
+user_pref("browser.ml.chat.enabled", false);
+user_pref("browser.ml.chat.menu", false);
+user_pref("browser.tabs.groups.smart.enabled", false);
+user_pref("browser.ml.linkPreview.enabled", false);
+
+/** 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.timeout", 0);
+
+/** URL BAR ***/
+user_pref("browser.urlbar.trending.featureGate", false);
+
+/** NEW TAB PAGE ***/
+user_pref("browser.newtabpage.activity-stream.default.sites", "");
+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);
+user_pref("browser.newtabpage.activity-stream.showSponsoredCheckboxes", false);
+
+/** DOWNLOADS ***/
+user_pref("browser.download.manager.addToRecentDocs", false);
+
+/** PDF ***/
+user_pref("browser.download.open_pdf_attachments_inline", true);
+
+/** TAB BEHAVIOR ***/
+user_pref("browser.bookmarks.openInTabClosesMenu", false);
+user_pref("browser.menu.showViewImageInfo", true);
+user_pref("findbar.highlightAll", true);
+user_pref("layout.word_select.eat_space_to_next_word", false);
+
+/****************************************************************************
+ * START: ZEN-SPECIFIC OVERRIDES                                            *
+****************************************************************************/
+// Remove the slashes to enable the prefs
+
+// 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                                                           *
+****************************************************************************/