140.0 (#404)

* install.py: add shebang

* install.py: remove old version of _get_firefox_version

* install.py: search for Firefox installation, including flatpak version

* install.py: add option to disable 'Press ENTER to exit'

* install.py: fix windows root

.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: 133                                                                         *
+ * version: 137                                                                         *
  * url: https://github.com/yokoffing/Betterfox                                          *
  ***************************************************************************************/
 
@@ -109,7 +109,7 @@ user_pref("content.notify.interval", 100000); // (.10s); default=120000 (.12s)
 // [2] https://github.com/yokoffing/Betterfox/issues/153
 // [3] https://github.com/yokoffing/Betterfox/issues/198
 //user_pref("gfx.canvas.accelerated", true); // [DEFAULT FF133+]
-    user_pref("gfx.canvas.accelerated.cache-items", 4096); // default=2048; Chrome=4096
+    //user_pref("gfx.canvas.accelerated.cache-items", 8192); // DEFAULT FF135+; Chrome=4096
     user_pref("gfx.canvas.accelerated.cache-size", 512); // default=256; Chrome=512
     user_pref("gfx.content.skia-font-cache-size", 20); // default=5; Chrome=20
     // [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1239151#c2
@@ -144,7 +144,7 @@ user_pref("content.notify.interval", 100000); // (.10s); default=120000 (.12s)
 // More efficient to keep the browser cache instead of having to
 // re-download objects for the websites you visit frequently.
 // [1] https://www.janbambas.cz/new-firefox-http-cache-enabled/
-user_pref("browser.cache.disk.enable", true);
+user_pref("browser.cache.disk.enable", false);
 
 // PREF: disk cache size
 // [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=913808,968106,968101
@@ -254,13 +254,14 @@ user_pref("browser.cache.disk.enable", true);
 // that only contains settings for systems at or below 8GB of system memory [1].
 // Waterfox G6 allows it to go above 8GB machines [3].
 // Value can be up to the max size of an unsigned 64-bit integer.
-// -1=Automatically decide the maximum memory to use to cache decoded images,
+// -1 = Automatically decide the maximum memory to use to cache decoded images,
 // messages, and chrome based on the total amount of RAM
+// For machines with 8GB+ RAM, that equals 32768 kb = 32 MB
 // [1] https://kb.mozillazine.org/Browser.cache.memory.capacity#-1
 // [2] https://searchfox.org/mozilla-central/source/netwerk/cache2/CacheObserver.cpp#94-125
 // [3] https://github.com/WaterfoxCo/Waterfox/commit/3fed16932c80a2f6b37d126fe10aed66c7f1c214
-//user_pref("browser.cache.memory.capacity", -1); // DEFAULT; 256000=256 MB; 512000=500 MB; 1048576=1GB, 2097152=2GB
+//user_pref("browser.cache.memory.capacity", 131072); // (128 MB)
-//user_pref("browser.cache.memory.max_entry_size", 10240); // (10 MB); default=5120 (5 MB)
+//user_pref("browser.cache.memory.max_entry_size", 20480); // (20 MB); default=5120 (5 MB)
 
 // PREF: amount of Back/Forward cached pages stored in memory for each tab
 // Pages that were recently visited are stored in memory in such a way
@@ -271,7 +272,7 @@ user_pref("browser.cache.disk.enable", true);
 // is no reason for Firefox to keep memory for this.
 // -1=determine automatically (8 pages)
 // [1] https://kb.mozillazine.org/Browser.sessionhistory.max_total_viewers#Possible_values_and_their_effects
-//user_pref("browser.sessionhistory.max_total_viewers", 4);
+user_pref("browser.sessionhistory.max_total_viewers", 4);
 
 /****************************************************************************
  * SECTION: MEDIA CACHE                                                     *
@@ -323,13 +324,14 @@ 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 changed [2].
+// [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
 // [2] https://github.com/yokoffing/Betterfox/issues/279
-//user_pref("network.buffer.cache.size", 262144); // 256 kb; default=32768 (32 kb)
+// [3] https://ra1ahq.blog/en/optimizaciya-proizvoditelnosti-mozilla-firefox
-//user_pref("network.buffer.cache.count", 128); // default=24
+//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
@@ -402,7 +404,7 @@ user_pref("network.ssl_tokens_cache_capacity", 10240); // default=2048; more TLS
 // [3] https://searchfox.org/mozilla-central/rev/028c68d5f32df54bca4cf96376f79e48dfafdf08/modules/libpref/init/all.js#1280-1282
 // [4] https://www.keycdn.com/blog/resource-hints#prefetch
 // [5] https://3perf.com/blog/link-rels/#prefetch
-//user_pref("network.http.speculative-parallel-limit", 20); // DEFAULT (FF127+?)
+user_pref("network.http.speculative-parallel-limit", 0);
 
 // PREF: DNS prefetching for HTMLLinkElement <link rel="dns-prefetch">
 // Used for cross-origin connections to provide small performance improvements.
@@ -416,7 +418,7 @@ user_pref("network.ssl_tokens_cache_capacity", 10240); // default=2048; more TLS
 user_pref("network.dns.disablePrefetch", true);
     user_pref("network.dns.disablePrefetchFromHTTPS", true); // [FF127+ false]
 
-// PREF:  DNS prefetch for HTMLAnchorElement (speculative DNS)
+// PREF: DNS prefetch for HTMLAnchorElement (speculative DNS)
 // Disable speculative DNS calls to prevent Firefox from resolving
 // hostnames for other domains linked on a page. This may eliminate
 // unnecessary DNS lookups, but can increase latency when following external links.
@@ -435,11 +437,11 @@ user_pref("network.dns.disablePrefetch", true);
 // [NOTE] Firefox will perform DNS lookup (if enabled) and TCP and TLS handshake,
 // but will not start sending or receiving HTTP data.
 // [1] https://www.ghacks.net/2017/07/24/disable-preloading-firefox-autocomplete-urls/
-//user_pref("browser.urlbar.speculativeConnect.enabled", false);
+user_pref("browser.urlbar.speculativeConnect.enabled", false);
 
 // PREF: mousedown speculative connections on bookmarks and history [FF98+]
 // Whether to warm up network connections for places:menus and places:toolbar.
-//user_pref("browser.places.speculativeConnect.enabled", false);
+user_pref("browser.places.speculativeConnect.enabled", false);
 
 // PREF: network module preload <link rel="modulepreload"> [FF115+]
 // High-priority loading of current page JavaScript modules.
@@ -497,7 +499,7 @@ user_pref("network.prefetch-next", false);
 // When enabled, it trains and uses Firefox's algorithm to preload page resource
 // by tracking past page resources. It uses a local file (history) of needed images,
 // scripts, etc. to request them preemptively when navigating.
-// [NOTE] By default, it only preconnects, doing DNS, TCP, and SSL handshakes.
+// [NOTE] By default, it only preconnects 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
@@ -542,12 +544,13 @@ user_pref("network.predictor.enabled", false);
 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/
+// [1] https://github.com/yokoffing/Betterfox/issues/355
-// [2] https://medium.com/airbnb-engineering/building-a-faster-web-experience-with-the-posttask-scheduler-276b83454e91
+// [2] https://blog.mozilla.org/performance/2022/06/02/prioritized-task-scheduling-api-is-prototyped-in-nightly/
-// [3] https://github.com/WICG/scheduling-apis/blob/main/explainers/prioritized-post-task.md
+// [3] https://medium.com/airbnb-engineering/building-a-faster-web-experience-with-the-posttask-scheduler-276b83454e91
-// [4] https://wicg.github.io/scheduling-apis/
+// [4] https://github.com/WICG/scheduling-apis/blob/main/explainers/prioritized-post-task.md
-// [5] https://caniuse.com/mdn-api_taskcontroller
+// [5] https://wicg.github.io/scheduling-apis/
-user_pref("dom.enable_web_task_scheduling", true);
+// [6] https://caniuse.com/mdn-api_taskcontroller
+//user_pref("dom.enable_web_task_scheduling", true);
 
 /****************************************************************************
  * SECTION: TAB UNLOAD                                                      *

Peskyfox.js

@@ -3,7 +3,7 @@
  * Peskyfox                                                                 *
  * "Aquila non capit muscas"                                                *
  * priority: remove annoyances                                              *
- * version: 133                                                             *
+ * version: 140                                                             *
  * 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                          *
@@ -109,16 +109,19 @@ user_pref("browser.privateWindowSeparation.enabled", false);
 ****************************************************************************/
 
 // PREF: Cookie Banner handling
+// [DEPRECIATED] Future of the project is unclear. See [5] and [6].
 // [NOTE] Feature still enforces Total Cookie Protection to limit 3rd-party cookie tracking [1]
 // [1] https://github.com/mozilla/cookie-banner-rules-list/issues/33#issuecomment-1318460084
 // [2] https://phabricator.services.mozilla.com/D153642
 // [3] https://winaero.com/make-firefox-automatically-click-on-reject-all-in-cookie-banner-consent/
 // [4] https://docs.google.com/spreadsheets/d/1Nb4gVlGadyxix4i4FBDnOeT_eJp2Zcv69o-KfHtK-aA/edit#gid=0
+// [5] https://bugzilla.mozilla.org/show_bug.cgi?id=1940418
+// [6] https://github.com/mozilla/cookie-banner-rules-list/issues/544
 // 2: reject banners if it is a one-click option; otherwise, fall back to the accept button to remove banner
 // 1: reject banners if it is a one-click option; otherwise, keep banners on screen
 // 0: disable all cookie banner handling
-user_pref("cookiebanners.service.mode", 1);
+//user_pref("cookiebanners.service.mode", 1);
-user_pref("cookiebanners.service.mode.privateBrowsing", 1);
+//user_pref("cookiebanners.service.mode.privateBrowsing", 1);
 
 // PREF: Cookie Banner global rules
 // Global rules that can handle a list of cookie banner libraries and providers on any site.
@@ -165,7 +168,7 @@ 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_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);
@@ -191,7 +194,7 @@ user_pref("browser.urlbar.suggest.engines", false);
 //user_pref("browser.urlbar.shortcuts.quickactions", false);
 //user_pref("browser.urlbar.suggest.weather", true); // DEFAULT [FF108]
     //user_pref("browser.urlbar.weather.ignoreVPN", false); // DEFAULT
-user_pref("browser.urlbar.suggest.calculator", true);
+//user_pref("browser.urlbar.suggest.calculator", true); // [DEFAULT FF137+]
 user_pref("browser.urlbar.unitConversion.enabled", true);
 
 // PREF: disable dropdown suggestions with empty query
@@ -234,11 +237,14 @@ user_pref("browser.urlbar.trending.featureGate", false);
 // disable=0
 //user_pref("browser.urlbar.maxRichResults", 5); // default=10
 
-// PREF: text fragments [FF126+ NIGHTLY]
+// 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                                                        *
@@ -285,12 +291,12 @@ 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.feeds.topsites", false); // Shortcuts
-      //user_pref("browser.newtabpage.activity-stream.showSponsoredTopSites", false); // Shortcuts > Sponsored shortcuts [FF83+]
+      user_pref("browser.newtabpage.activity-stream.showSponsoredTopSites", false); // Shortcuts > Sponsored shortcuts [FF83+]
-user_pref("browser.newtabpage.activity-stream.showWeather", false); // Weather [FF130+]
+//user_pref("browser.newtabpage.activity-stream.showWeather", false); // Weather [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.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);
@@ -303,7 +309,7 @@ user_pref("browser.newtabpage.activity-stream.feeds.section.topstories", false);
 
 // PREF: clear default topsites
 // [NOTE] This does not block you from adding your own.
-//user_pref("browser.newtabpage.activity-stream.default.sites", "");
+user_pref("browser.newtabpage.activity-stream.default.sites", "");
 
 // PREF: keep search in the search box; prevent from jumping to address bar
 // [1] https://www.reddit.com/r/firefox/comments/oxwvbo/firefox_start_page_search_options/

README.md

@@ -1,33 +1,24 @@
-![GitHub Maintained](https://img.shields.io/badge/open%20source-yes-orange)
+![GitHub Maintained](https://img.shields.io/badge/maintained-yes-green)![GitHub last commit](https://img.shields.io/github/last-commit/yokoffing/betterfox)![GitHub issues](https://img.shields.io/github/issues/yokoffing/betterfox)![GitHub closed issues](https://img.shields.io/github/issues-closed/yokoffing/betterfox)![GitHub repo size](https://img.shields.io/github/repo-size/yokoffing/betterfox)[![shields.io Stars](https://img.shields.io/github/stars/yokoffing/betterfox)](https://github.com/yokoffing/betterfox/stargazers)
-![GitHub Maintained](https://img.shields.io/badge/maintained-yes-yellow)
-[![Visitors](https://hits.seeyoufarm.com/api/count/incr/badge.svg?url=https%3A%2F%2Fgithub.com%2Fyokoffing%2FBetter-Fox&count_bg=%2379C83D&title_bg=%23555555&icon=&icon_color=%23E7E7E7&title=visitors&edge_flat=false)](https://hits.seeyoufarm.com)
 
 # Betterfox
-[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/). 
+[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/).
 
-31% [faster](https://medium.com/@mihirgrand/comparing-popular-firefox-forks-6fa83fdfdaad#:~:text=31%25%20more%20than%20vanilla%20Firefox) than regular Firefox :rocket:
+## Made for everyday browsing
+[Faster](https://medium.com/@mihirgrand/comparing-popular-firefox-forks-6fa83fdfdaad#:~:text=31%25%20more%20than%20vanilla%20Firefox), more private and secure — without using third-party code.
 
-Now with support for ESR [128](https://github.com/yokoffing/Betterfox/tree/esr128) :new: 
+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).
 
 ## 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 [Common Overrides](https://github.com/yokoffing/Betterfox/wiki/Common-Overrides) and make any necessary changes.
+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.
-   * See also [Optional Hardening](https://github.com/yokoffing/Betterfox/wiki/Optional-Hardening) for other recommendations.
 3) Open Firefox. In the URL bar, type `about:profiles` and press **Enter**.
-4) For the profile you want to use (or use default), click **Open Folder** in the **Root Directory** section.
+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). <sup><i>Use the link and support this page!</i></sup>
+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.
-    * Check out our configuration [guide](https://github.com/yokoffing/NextDNS-Config) for the best experience.
-    * See how to [quickly enable](https://support.mozilla.org/en-US/kb/dns-over-https) **secure DNS** in Firefox.
-
-## Made for everyday browsing
-**A secure, blazing fast browsing experience. Without breakage.**
-
-Betterfox is an opinionated preference list inspired by the [law of diminishing returns](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).
 
 ## Simple goals
 1) **Minimalism:** get what isn't needed out of the way
@@ -54,15 +45,16 @@ The `user.js` — a configuration file that controls Firefox settings — is cur
 > [!IMPORTANT]
 > While the browsers listed below incorporate Betterfox to some extent, they often modify it in ways that reduce its effectiveness. For optimal results, apply the `user.js` file even when using Firefox forks.
 
-* [Zen](https://github.com/zen-browser/desktop?tab=readme-ov-file) | [files](https://github.com/zen-browser/desktop/blob/main/src/browser/app/profile/better-fox.js) (July 2024)
+* [Zen](https://github.com/zen-browser/desktop?tab=readme-ov-file) | [files](https://github.com/zen-browser/desktop/blob/stable/src/browser/app/profile/zen-browser.js) (July 2024)
 * [Midori](https://github.com/goastian/midori-desktop/blob/ESR115/README.md) | [files](https://github.com/goastian/midori-desktop/blob/f3d8d96eb8e08f35a64e3c957bea4e839d7c7730/floorp/browser/components/userjsUtils.sys.mjs#L28-L33) (Dec 2023?)
 * [Mercury](https://github.com/Alex313031/Mercury/releases/tag/v.115.3.0) | [files](https://github.com/Alex313031/Mercury/commit/eb9600f9fb8f48c8f5b5c6f3264fbcdb5caff7f5) (Sep 2023)
-* [Waterfox](https://www.waterfox.net/en-US/docs/releases/G6.0/) | [files](https://github.com/WaterfoxCo/Waterfox/tree/current/waterfox/browser/app/profile) (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)
@@ -74,6 +66,7 @@ The `user.js` — a configuration file that controls Firefox settings — is cur
 * [GhoSTORIES with Franz & Pete](https://anchor.fm/ghostories/episodes/S2E6-We-Talking-Ghostery-Dawn----Again-er0q02/a-a4o5vmh) | 17:05–18:40 (Feb 2021)
 
 ### Articles
+* [Español] [Firefox is an excellent browser, but this small modification makes it much faster and more private](https://www.genbeta.com/a-fondo/firefox-excelente-navegador-esta-pequena-modificacion-hace-mucho-rapido-privado-asi-funciona-betterfox) (Jan 2025)
 * [Browsers for Daily 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)

Securefox.js

@@ -3,7 +3,7 @@
  * Securefox                                                                *
  * "Natura non contristatur"                                                *     
  * priority: provide sensible security and privacy                          *
- * version: 133                                                             *
+ * version: 140                                                             *
  * url: https://github.com/yokoffing/Betterfox                              *
  * credit: Most prefs are reproduced and adapted from the arkenfox project  *
  * credit urL: https://github.com/arkenfox/user.js                          *
@@ -21,10 +21,10 @@
 // [NOTE] FF86: "Strict" tracking protection enables dFPI.
 // [1] https://support.mozilla.org/en-US/kb/enhanced-tracking-protection-firefox-desktop
 // [2] https://www.reddit.com/r/firefox/comments/l7xetb/network_priority_for_firefoxs_enhanced_tracking/gle2mqn/?web2x&context=3
+user_pref("browser.contentblocking.category", "strict"); // [HIDDEN]
 //user_pref("privacy.trackingprotection.enabled", true); // enabled with "Strict"
 //user_pref("privacy.trackingprotection.pbmode.enabled", true); // DEFAULT
 //user_pref("browser.contentblocking.customBlockList.preferences.ui.enabled", false); // DEFAULT
-user_pref("browser.contentblocking.category", "strict"); // [HIDDEN]
 //user_pref("privacy.trackingprotection.socialtracking.enabled", true); // enabled with "Strict"
     //user_pref("privacy.socialtracking.block_cookies.enabled", true); // DEFAULT
 //user_pref("privacy.trackingprotection.cryptomining.enabled", true); // DEFAULT
@@ -56,15 +56,28 @@ user_pref("browser.contentblocking.category", "strict"); // [HIDDEN]
 //user_pref("privacy.query_stripping.strip_list", ""); // DEFAULT
 //user_pref("privacy.query_stripping.strip_on_share.enabled", true);
 
-// PREF: allow embedded tweets, Instagram and Reddit posts, and TikTok embeds
+// PREF: Smartblock
+// [1] https://support.mozilla.org/en-US/kb/smartblock-enhanced-tracking-protection
+// [2] https://www.youtube.com/watch?v=VE8SrClOTgw
+// [3] https://searchfox.org/mozilla-central/source/browser/extensions/webcompat/data/shims.js
+//user_pref("extensions.webcompat.enable_shims", true); // [HIDDEN] enabled with "Strict"
+//user_pref("extensions.webcompat.smartblockEmbeds.enabled", true); // [DEFAULT FF137+]
+
+// PREF: allow embedded tweets and reddit posts [FF136+]
 // [TEST - reddit embed] https://www.pcgamer.com/amazing-halo-infinite-bugs-are-already-rolling-in/
 // [TEST - instagram embed] https://www.ndtv.com/entertainment/bharti-singh-and-husband-haarsh-limbachiyaa-announce-pregnancy-see-trending-post-2646359
 // [TEST - tweet embed] https://www.newsweek.com/cryptic-tweet-britney-spears-shows-elton-john-collab-may-date-back-2015-1728036
 // [TEST - tiktok embed] https://www.vulture.com/article/snl-adds-four-new-cast-members-for-season-48.html
+// [TEST - truthsocial embed] https://www.newsweek.com/donald-trump-congratulates-patrick-brittany-mahomes-new-baby-2027097
 // [1] https://www.reddit.com/r/firefox/comments/l79nxy/firefox_dev_is_ignoring_social_tracking_preference/gl84ukk
 // [2] https://www.reddit.com/r/firefox/comments/pvds9m/reddit_embeds_not_loading/
-user_pref("urlclassifier.trackingSkipURLs", "*.reddit.com, *.twitter.com, *.twimg.com, *.tiktok.com"); // MANUAL
+// [3] https://github.com/yokoffing/Betterfox/issues/413
-user_pref("urlclassifier.features.socialtracking.skipURLs", "*.instagram.com, *.twitter.com, *.twimg.com"); // MANUAL
+//user_pref("urlclassifier.trackingSkipURLs", "embed.reddit.com, *.twitter.com, *.twimg.com"); // MANUAL [FF136+]
+//user_pref("urlclassifier.features.socialtracking.skipURLs", "*.twitter.com, *.twimg.com"); // MANUAL [FF136+]
+
+// PREF: allow embedded tweets, Instagram and Reddit posts, and TikTok embeds [before FF136+]
+//user_pref("urlclassifier.trackingSkipURLs", "*.reddit.com, *.twitter.com, *.twimg.com, *.tiktok.com"); // MANUAL
+//user_pref("urlclassifier.features.socialtracking.skipURLs", "*.instagram.com, *.twitter.com, *.twimg.com"); // MANUAL
 
 // PREF: lower the priority of network loads for resources on the tracking protection list [NIGHTLY]
 // [1] https://github.com/arkenfox/user.js/issues/102#issuecomment-298413904
@@ -109,7 +122,9 @@ user_pref("urlclassifier.features.socialtracking.skipURLs", "*.instagram.com, *.
 // [5] https://hacks.mozilla.org/2021/02/introducing-state-partitioning/
 // [6] https://github.com/arkenfox/user.js/issues/1281
 // [7] https://hacks.mozilla.org/2022/02/improving-the-storage-access-api-in-firefox/
+// [8] https://blog.includesecurity.com/2025/04/cross-site-websocket-hijacking-exploitation-in-2025/
 //user_pref("network.cookie.cookieBehavior", 5); // DEFAULT FF103+
+//user_pref("network.cookie.cookieBehavior.optInPartitioning", true); // [ETP FF132+]
 //user_pref("browser.contentblocking.reject-and-isolate-cookies.preferences.ui.enabled", true); // DEFAULT
 
 // PREF: Network Partitioning
@@ -122,18 +137,12 @@ user_pref("urlclassifier.features.socialtracking.skipURLs", "*.instagram.com, *.
 // [3] https://blog.mozilla.org/security/2021/01/26/supercookie-protections/
 //user_pref("privacy.partition.network_state", true); // DEFAULT
     //user_pref("privacy.partition.serviceWorkers", true); // [DEFAULT: true FF105+]
-    //user_pref("privacy.partition.network_state.ocsp_cache", true); // enabled with "Strict" [DEFAULT: true FF123+]
+    //user_pref("privacy.partition.network_state.ocsp_cache", true); // [DEFAULT: true FF123+]
     //user_pref("privacy.partition.bloburl_per_partition_key", true); // [FF118+]
 // enable APS (Always Partitioning Storage) [FF104+]
 //user_pref("privacy.partition.always_partition_third_party_non_cookie_storage", true); // [DEFAULT: true FF109+]
 //user_pref("privacy.partition.always_partition_third_party_non_cookie_storage.exempt_sessionstorage", false); // [DEFAULT: false FF109+]
 
-// PREF: Smartblock
-// [1] https://support.mozilla.org/en-US/kb/smartblock-enhanced-tracking-protection
-// [2] https://www.youtube.com/watch?v=VE8SrClOTgw
-// [3] https://searchfox.org/mozilla-central/source/browser/extensions/webcompat/data/shims.js
-//user_pref("extensions.webcompat.enable_shims", true); // enabled with "Strict"
-
 // PREF: Redirect Tracking Prevention / Cookie Purging
 // All storage is cleared (more or less) daily from origins that are known trackers and that
 // haven’t received a top-level user interaction (including scroll) within the last 45 days.
@@ -159,6 +168,7 @@ user_pref("urlclassifier.features.socialtracking.skipURLs", "*.instagram.com, *.
 // [6] https://web.dev/samesite-cookies-explained/
 // [7] https://portswigger.net/web-security/csrf/bypassing-samesite-restrictions
 // [8] https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies
+// [9] https://blog.includesecurity.com/2025/04/cross-site-websocket-hijacking-exploitation-in-2025/
 // [TEST] https://samesite-sandbox.glitch.me/
 //user_pref("network.cookie.sameSite.laxByDefault", true);
 //user_pref("network.cookie.sameSite.noneRequiresSecure", true); // [DEFAULT FF131+]
@@ -255,6 +265,7 @@ user_pref("security.OCSP.enabled", 0);
 // [1] https://blog.mozilla.org/security/2013/07/29/ocsp-stapling-in-firefox/
 // [2] https://www.imperialviolet.org/2014/04/19/revchecking.html
 // [3] https://www.ssl.com/blogs/how-do-browsers-handle-revoked-ssl-tls-certificates/#ftoc-heading-3
+// [4] https://letsencrypt.org/2024/12/05/ending-ocsp/
 //user_pref("security.OCSP.require", true);
       
 // PREF: CRLite
@@ -266,7 +277,7 @@ user_pref("security.OCSP.enabled", 0);
 // 3 = consult CRLite and enforce "Not Revoked" results, but defer to OCSP for "Revoked" [FF99+, default FF100+]
 // [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1429800,1670985,1753071
 // [2] https://blog.mozilla.org/security/tag/crlite/
-user_pref("security.remote_settings.crlite_filters.enabled", true);
+//user_pref("security.remote_settings.crlite_filters.enabled", true); // [DEFAULT: true FF137+]
 user_pref("security.pki.crlite_mode", 2);
 
 // PREF: HTTP Public Key Pinning (HPKP)
@@ -556,8 +567,8 @@ user_pref("browser.urlbar.untrimOnUserInteraction.featureGate", true);
 
 // PREF: display "Not Secure" text on HTTP sites
 // Needed with HTTPS-First Policy; not needed with HTTPS-Only Mode.
-user_pref("security.insecure_connection_text.enabled", true);
+//user_pref("security.insecure_connection_text.enabled", true); // [DEFAULT FF136+]
-user_pref("security.insecure_connection_text.pbmode.enabled", true);
+//user_pref("security.insecure_connection_text.pbmode.enabled", true); // [DEFAULT FF136+]
 
 // PREF: do not show search terms in URL bar [FF110+]
 // Show search query instead of URL on search results pages.
@@ -572,11 +583,13 @@ user_pref("browser.search.separatePrivateDefault.ui.enabled", true);
     //user_pref("browser.search.separatePrivateDefault", true); // DEFAULT
 
 // PREF: enable option to add custom search engine
+// Before FF140, this pref was hidden.
 // [SETTINGS] Settings -> Search -> Search Shortcuts -> Add
 // [EXAMPLE] https://search.brave.com/search?q=%s
 // [EXAMPLE] https://lite.duckduckgo.com/lite/?q=%s
 // [1] https://reddit.com/r/firefox/comments/xkzswb/adding_firefox_search_engine_manually/
-user_pref("browser.urlbar.update2.engineAliasRefresh", true); // HIDDEN
+// [2] https://www.mozilla.org/en-US/firefox/140.0/releasenotes/
+//user_pref("browser.urlbar.update2.engineAliasRefresh", true); // [DEFAULT FF140+]
 
 // PREF: disable live search suggestions (Google, Bing, etc.)
 // [WARNING] Search engines keylog every character you type from the URL bar.
@@ -652,7 +665,8 @@ user_pref("network.IDN_show_punycode", true);
 // [4] https://web.dev/why-https-matters/
 // [5] https://www.cloudflare.com/learning/ssl/why-use-https/
 // [6] https://blog.chromium.org/2023/08/towards-https-by-default.html
-user_pref("dom.security.https_first", true); // [DEFAULT FF129+]
+// [7] https://attackanddefense.dev/2025/03/31/https-first-in-firefox-136.html
+//user_pref("dom.security.https_first", true); // [DEFAULT FF136+]
 //user_pref("dom.security.https_first_pbm", true); // [DEFAULT FF91+]
 //user_pref("dom.security.https_first_schemeless", true); // [FF120+] [DEFAULT FF129+]
 
@@ -832,7 +846,6 @@ user_pref("dom.security.https_first", true); // [DEFAULT FF129+]
 // [NOTE] This does not clear any passwords already saved.
 // [SETTING] Privacy & Security>Logins and Passwords>Ask to save logins and passwords for websites
 //user_pref("signon.rememberSignons", false);
-    //user_pref("signon.rememberSignons.visibilityToggle", true); // DEFAULT
     //user_pref("signon.schemeUpgrades", true); // DEFAULT
     //user_pref("signon.showAutoCompleteFooter", true); // DEFAULT
     //user_pref("signon.autologin.proxy", false); // DEFAULT
@@ -880,10 +893,11 @@ user_pref("signon.privateBrowsingCapture.enabled", false);
 
 // PREF: limit (or disable) HTTP authentication credentials dialogs triggered by sub-resources [FF41+]
 // Hardens against potential credentials phishing.
+// [WARNING] Hardening this pref may prevent you from subscribing to SoGo calendars in Thunderbird 138
 // 0=don't allow sub-resources to open HTTP authentication credentials dialogs
 // 1=don't allow cross-origin sub-resources to open HTTP authentication credentials dialogs
 // 2=allow sub-resources to open HTTP authentication credentials dialogs (default)
-// [1] https://www.fxsitecompat.com/en-CA/docs/2015/http-auth-dialog-can-no-longer-be-triggered-by-cross-origin-resources/
+// [1] https://web.archive.org/web/20181123134351/https://www.fxsitecompat.com/en-CA/docs/2015/http-auth-dialog-can-no-longer-be-triggered-by-cross-origin-resources/
 user_pref("network.auth.subresource-http-auth-allow", 1);
 
 // PREF: prevent password truncation when submitting form data
@@ -1152,6 +1166,10 @@ user_pref("privacy.userContext.ui.enabled", true);
 // [3] https://www.zdnet.com/article/half-of-the-websites-using-webassembly-use-it-for-malicious-purposes
 //user_pref("javascript.options.wasm", false);
 
+// PREF: CSP reporting
+// [1] https://github.com/yokoffing/Betterfox/issues/415
+//user_pref("security.csp.reporting.enabled", false);
+
 /******************************************************************************
  * SECTION: SAFE BROWSING (SB)                                               *
 ******************************************************************************/
@@ -1262,16 +1280,21 @@ user_pref("browser.safebrowsing.downloads.remote.enabled", false);
 // To add site exceptions: Page Info>Permissions>Receive Notifications
 // To manage site exceptions: Options>Privacy & Security>Permissions>Notifications>Settings
 // 0=always ask (default), 1=allow, 2=block
+// [1] https://easylinuxtipsproject.blogspot.com/p/security.html#ID5
+// [2] https://github.com/yokoffing/Betterfox/wiki/Common-Overrides#site-notifications
 user_pref("permissions.default.desktop-notification", 2);
    
 // PREF: default permission for Location Requests
 // 0=always ask (default), 1=allow, 2=block
 user_pref("permissions.default.geo", 2);
 
-// PREF: use Mozilla geolocation service instead of Google when geolocation is enabled
+// PREF: use alternative geolocation service instead of Google
-// [NOTE] Mozilla's geolocation service is discontinued 12 June 2024 [1].
+// [NOTE] Mozilla's geolocation service was discontinued in June 2024 [1].
+// BeaconDB is its replacement.
 // [1] https://github.com/mozilla/ichnaea/issues/2065
-//user_pref("geo.provider.network.url", "https://location.services.mozilla.com/v1/geolocate?key=%MOZILLA_API_KEY%");
+// [2] https://codeberg.org/beacondb/beacondb
+// [3] https://github.com/yokoffing/Betterfox/issues/378
+user_pref("geo.provider.network.url", "https://beacondb.net/v1/geolocate");
 
 // PREF: disable using the OS's geolocation service
 //user_pref("geo.provider.ms-windows-location", false); // [WINDOWS]
@@ -1312,6 +1335,10 @@ user_pref("permissions.manager.defaultsUrl", "");
 // PREF: remove webchannel whitelist
 //user_pref("webchannel.allowObject.urlWhitelist", ""); // [DEFAULT FF132+]
 
+// PREF: disable metadata caching for installed add-ons by default
+// [1] https://blog.mozilla.org/addons/how-to-opt-out-of-add-on-metadata-updates/
+user_pref("extensions.getAddons.cache.enabled", false);
+
 /******************************************************************************
  * SECTION: TELEMETRY                                                   *
 ******************************************************************************/
@@ -1352,6 +1379,9 @@ user_pref("toolkit.coverage.endpoint.base", "");
 user_pref("browser.newtabpage.activity-stream.feeds.telemetry", false);
 user_pref("browser.newtabpage.activity-stream.telemetry", false);
 
+// PREF: disable daily active users [FF136+]
+user_pref("datareporting.usage.uploadEnabled", false);
+
 /******************************************************************************
  * SECTION: EXPERIMENTS                                                      *
 ******************************************************************************/
@@ -1384,15 +1414,16 @@ user_pref("browser.tabs.crashReporting.sendReport", false);
 ******************************************************************************/
 
 // PREF: disable Captive Portal detection
+// [WARNING] Do NOT use for mobile devices. May NOT be able to use Firefox on public wifi (hotels, coffee shops, etc).
 // [1] https://www.eff.org/deeplinks/2017/08/how-captive-portals-interfere-wireless-security-and-privacy
 // [2] https://wiki.mozilla.org/Necko/CaptivePortal
-user_pref("captivedetect.canonicalURL", "");
+//user_pref("captivedetect.canonicalURL", "");
-user_pref("network.captive-portal-service.enabled", false);
+//user_pref("network.captive-portal-service.enabled", false);
 
 // PREF: disable Network Connectivity checks
 // [WARNING] Do NOT use for mobile devices. May NOT be able to use Firefox on public wifi (hotels, coffee shops, etc).
 // [1] https://bugzilla.mozilla.org/1460537
-user_pref("network.connectivity-service.enabled", false);
+//user_pref("network.connectivity-service.enabled", false);
 
 // PREF: disable Privacy-Preserving Attribution [FF128+]
 // [NOTE] PPA disabled if main telemetry switches are disabled.

Smoothfox.js

@@ -3,7 +3,7 @@
  * Smoothfox                                                                            *
  * "Faber est suae quisque fortunae"                                                    *
  * priority: better scrolling                                                           *
- * version: 126.1                                                                       *
+ * version: 137                                                                       *
  * url: https://github.com/yokoffing/Betterfox                                          *
  ***************************************************************************************/
 
@@ -17,7 +17,7 @@
 // only sharpen scrolling
 user_pref("apz.overscroll.enabled", true); // DEFAULT NON-LINUX
 user_pref("general.smoothScroll", true); // DEFAULT
-user_pref("mousewheel.min_line_scroll_amount", 10); // 10-40; adjust this number to your liking; default=5
+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

install.py

@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 from datetime import datetime
 from os import name, getenv
 from json import loads
@@ -43,23 +45,47 @@ If there's any problems with the script, feel free to mention @Denperidge on Git
 re_find_version = compile(r"mozilla.org/.*?/firefox/(?P<version>[\d.]*?)/", IGNORECASE)
 re_find_overrides = r"(overrides|prefs).*\n(?P<space>\n)"
 
-FIREFOX_ROOT = Path.home().joinpath(".mozilla/firefox").absolute() if name != "nt" else Path(getenv("APPDATA") + "/Mozilla/Firefox/").resolve()
+INSTALLATIONS_TO_CHECK = [
-DEFAULT_FIREFOX_INSTALL = Path("C:/Program Files/Mozilla Firefox/" if name == "nt" else "")
+    # windows
-
+    {
-selected_if_backup = None
+        "command": [str(Path("C:/Program Files/Mozilla Firefox/firefox"))],
-selected_config = ""
+        "root": Path(getenv("APPDATA") or "").joinpath("Mozilla/Firefox").resolve(),
-userjs_path = None
+    },
+    # 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(),
+    },
+]
 
 
-def _get_firefox_version(bin="firefox"):
+# command is a list, eg. ["firefox"] or ["flatpak", "run", "org.mozilla.firefox"]
-    try:
+def _get_firefox_version(command):
-        ver_string = check_output([bin, "--version"], encoding="UTF-8")
+    ver_string = check_output(command + ["--version"], encoding="UTF-8")
-        return ver_string[ver_string.rindex(" ")+1:].strip()
+    return ver_string[ver_string.rindex(" ")+1:].strip()
-    except FileNotFoundError:
-        return _get_firefox_version(str(DEFAULT_FIREFOX_INSTALL.joinpath("firefox")))
 
-def _get_default_profile_folder():
+def _get_default_firefox_version_and_root():
-    config_path = FIREFOX_ROOT.joinpath("profiles.ini")
+    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}...")
 
@@ -82,7 +108,7 @@ def _get_default_profile_folder():
                 break
     
     if path is not None:
-        return FIREFOX_ROOT.joinpath(path)
+        return firefox_root.joinpath(path)
     else:
         raise Exception("Could not determine default Firefox profile! Exiting...")
 
@@ -122,8 +148,7 @@ def _get_latest_compatible_release(releases):
     for release in releases:
         if firefox_version in release["supported"]:
             return release
-    return None    
+    return None
-    
 
 def backup_profile(src):
     dest = f"{src}-backup-{datetime.today().strftime('%Y-%m-%d-%H-%M-%S')}"
@@ -166,13 +191,16 @@ def list_releases(releases, only_supported=False, add_index=False):
         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 = _get_firefox_version()
+    firefox_version, firefox_root = _get_default_firefox_version_and_root()
-    selected_release = None
+
+    default_profile_folder = _get_default_profile_folder(firefox_root)
 
-    default_profile_folder = _get_default_profile_folder()
     argparser = ArgumentParser(
 
     )
@@ -194,14 +222,17 @@ if __name__ == "__main__":
     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)
-        input("Press ENTER to exit...")
+        _press_enter_to_exit(args)
         exit()
 
     if not args.no_backup:
@@ -251,6 +282,6 @@ if __name__ == "__main__":
                 userjs_file.write(new_content)
         else:
             print(f"Found no overrides in {args.overrides}")
-    
+
-    input("Press ENTER to exit...")
+    _press_enter_to_exit(args)
 

personal/user-overrides.js

@@ -19,12 +19,19 @@
 
 /** 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
+
-user_pref("browser.cache.disk.enable", false); // disable disk cache
+// SPECULATIVE LOADING WITHOUT PREDICTOR
+user_pref("network.http.speculative-parallel-limit", 20);
+//user_pref("network.dns.disablePrefetch", false);
+//user_pref("network.dns.disablePrefetchFromHTTPS", false);
+//user_pref("dom.prefetch_dns_for_anchor_https_document", true); 
+user_pref("browser.urlbar.speculativeConnect.enabled", true);
+user_pref("browser.places.speculativeConnect.enabled", true);
+user_pref("network.prefetch-next", true);
+
 user_pref("network.http.max-persistent-connections-per-server", 20); // increase download connections
 
 /** SECUREFOX ***/
-//user_pref("urlclassifier.features.socialtracking.skipURLs", "*.twitter.com, *.twimg.com"); // removed *.instagram.com
 user_pref("signon.rememberSignons", false); // disable password manager
 user_pref("extensions.formautofill.addresses.enabled", false); // disable address manager
 user_pref("extensions.formautofill.creditCards.enabled", false); // disable credit card manager
@@ -35,8 +42,6 @@ user_pref("signon.management.page.breach-alerts.enabled", false); // extra harde
 user_pref("signon.autofillForms", false); // unselect "Autofill logins and passwords" for clean UI
 user_pref("signon.generation.enabled", false); // unselect "Suggest and generate strong passwords" for clean UI
 user_pref("signon.firefoxRelay.feature", ""); // unselect suggestions from Firefox Relay for clean UI
-//user_pref("privacy.sanitize.sanitizeOnShutdown", true); // clear browsing data on shutdown
-//user_pref("privacy.clearOnShutdown.offlineApps", true); // clear Site Data on shutdown
 user_pref("browser.safebrowsing.downloads.enabled", false); // deny SB to scan downloads to identify suspicious files; local checks only
 user_pref("browser.safebrowsing.downloads.remote.url", ""); // enforce no remote checks for downloads by SB
 user_pref("browser.safebrowsing.downloads.remote.block_potentially_unwanted", false); // clean up UI; not needed in user.js if remote downloads are disabled
@@ -49,10 +54,11 @@ user_pref("identity.fxaccounts.enabled", false); // disable Firefox Sync
 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.cert_pinning.enforcement_level", 2); // strict public key pinning
+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
 
 /** PESKYFOX ***/
-user_pref("cookiebanners.service.mode", 0); // disable for performance since I'm using Easylist Cookie
-user_pref("cookiebanners.service.mode.privateBrowsing", 0); // disable for performance since I'm using Easylist Cookie
 user_pref("devtools.accessibility.enabled", false); // removes un-needed "Inspect Accessibility Properties" on right-click
 user_pref("browser.newtabpage.activity-stream.showSponsoredTopSites", false); // Settings>Home>Firefox Home Content>Recent Activity>Shortcuts>Sponsored shortcuts
 user_pref("browser.newtabpage.activity-stream.showSponsored", false); // Settings>Home>Firefox Home Content>Recent Activity>Recommended by Pocket>Sponsored Stories  
@@ -75,13 +81,13 @@ user_pref("browser.bookmarks.max_backups", 0); // minimize disk use; manually ba
 user_pref("view_source.wrap_long_lines", true);  // wrap source lines
 user_pref("devtools.debugger.ui.editor-wrapping", true);  // wrap lines in devtools
 user_pref("browser.zoom.full", false); // text-only zoom, not all elements on page
-user_pref("pdfjs.sidebarViewOnLoad", 2); // force showing of Table of Contents in sidebar for PDFs (if available)
+//user_pref("pdfjs.sidebarViewOnLoad", 2); // force showing of Table of Contents in sidebar for PDFs (if available)
 user_pref("layout.word_select.eat_space_to_next_word", false); // do not select the space next to a word when selecting a word
 //user_pref("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
@@ -98,8 +104,7 @@ user_pref("browser.crashReports.unsubmittedCheck.enabled", false); // true by de
 
 /** 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.js

@@ -10,7 +10,7 @@
 /****************************************************************************
  * Betterfox                                                                *
  * "Ad meliora"                                                             *
- * version: 133                                                             *
+ * version: 140                                                             *
  * url: https://github.com/yokoffing/Betterfox                              *
 ****************************************************************************/
 
@@ -21,12 +21,14 @@
 user_pref("content.notify.interval", 100000);
 
 /** GFX ***/
-user_pref("gfx.canvas.accelerated.cache-items", 4096);
 user_pref("gfx.canvas.accelerated.cache-size", 512);
 user_pref("gfx.content.skia-font-cache-size", 20);
 
 /** DISK CACHE ***/
-user_pref("browser.cache.disk.enable", true);
+user_pref("browser.cache.disk.enable", false);
+
+/** MEMORY CACHE ***/
+user_pref("browser.sessionhistory.max_total_viewers", 4);
 
 /** MEDIA CACHE ***/
 user_pref("media.memory_cache_max_size", 65536);
@@ -45,23 +47,22 @@ user_pref("network.dnsCacheExpiration", 3600);
 user_pref("network.ssl_tokens_cache_capacity", 10240);
 
 /** SPECULATIVE LOADING ***/
+user_pref("network.http.speculative-parallel-limit", 0);
 user_pref("network.dns.disablePrefetch", true);
 user_pref("network.dns.disablePrefetchFromHTTPS", true);
+user_pref("browser.urlbar.speculativeConnect.enabled", false);
+user_pref("browser.places.speculativeConnect.enabled", false);
 user_pref("network.prefetch-next", false);
 user_pref("network.predictor.enabled", false);
-user_pref("network.predictor.enable-prefetch", false);
 
 /** EXPERIMENTAL ***/
 user_pref("layout.css.grid-template-masonry-value.enabled", true);
-user_pref("dom.enable_web_task_scheduling", true);
 
 /****************************************************************************
  * 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("browser.download.start_downloads_in_tmp_dir", true);
 user_pref("browser.helperApps.deleteTempFileOnExit", true);
 user_pref("browser.uitour.enabled", false);
@@ -69,7 +70,6 @@ user_pref("privacy.globalprivacycontrol.enabled", true);
 
 /** OCSP & CERTS / HPKP ***/
 user_pref("security.OCSP.enabled", 0);
-user_pref("security.remote_settings.crlite_filters.enabled", true);
 user_pref("security.pki.crlite_mode", 2);
 
 /** SSL / TLS ***/
@@ -89,18 +89,12 @@ user_pref("privacy.history.custom", true);
 user_pref("browser.urlbar.trimHttps", true);
 user_pref("browser.urlbar.untrimOnUserInteraction.featureGate", true);
 user_pref("browser.search.separatePrivateDefault.ui.enabled", true);
-user_pref("browser.urlbar.update2.engineAliasRefresh", true);
 user_pref("browser.search.suggest.enabled", false);
 user_pref("browser.urlbar.quicksuggest.enabled", false);
 user_pref("browser.urlbar.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);
-
 /** PASSWORDS ***/
 user_pref("signon.formlessCapture.enabled", false);
 user_pref("signon.privateBrowsingCapture.enabled", false);
@@ -126,8 +120,10 @@ 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://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);
@@ -146,6 +142,7 @@ 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);
@@ -156,11 +153,6 @@ user_pref("app.normandy.api_url", "");
 user_pref("breakpad.reportURL", "");
 user_pref("browser.tabs.crashReporting.sendReport", false);
 
-/** DETECTION ***/
-user_pref("captivedetect.canonicalURL", "");
-user_pref("network.captive-portal-service.enabled", false);
-user_pref("network.connectivity-service.enabled", false);
-
 /****************************************************************************
  * SECTION: PESKYFOX                                                        *
 ****************************************************************************/
@@ -182,24 +174,20 @@ user_pref("toolkit.legacyUserProfileCustomizations.stylesheets", true);
 user_pref("browser.compactmode.show", true);
 user_pref("browser.privateWindowSeparation.enabled", false); // WINDOWS
 
-/** COOKIE BANNER HANDLING ***/
-user_pref("cookiebanners.service.mode", 1);
-user_pref("cookiebanners.service.mode.privateBrowsing", 1);
-
 /** FULLSCREEN NOTICE ***/
 user_pref("full-screen-api.transition-duration.enter", "0 0");
 user_pref("full-screen-api.transition-duration.leave", "0 0");
 user_pref("full-screen-api.warning.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.showWeather", false);
+user_pref("browser.newtabpage.activity-stream.showSponsoredTopSites", false);
 user_pref("browser.newtabpage.activity-stream.feeds.section.topstories", false);
+user_pref("browser.newtabpage.activity-stream.showSponsored", false);
 
 /** POCKET ***/
 user_pref("extensions.pocket.enabled", false);
@@ -223,12 +211,16 @@ 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                                                           *
 ****************************************************************************/

zen/user.js

@@ -0,0 +1,127 @@
+//
+/* You may copy+paste this file and use it as it is.
+ *
+ * If you make changes to your about:config while the program is running, the
+ * changes will be overwritten by the user.js when the application restarts.
+ *
+ * To make lasting changes to preferences, you will have to edit the user.js.
+ */
+
+/****************************************************************************
+ * BetterZen                                                                *
+ * "Ex nihilo nihil fit"                                                    *
+ * version: 138                                                             *
+ * url: https://github.com/yokoffing/Betterfox                              *
+****************************************************************************/
+
+/****************************************************************************
+ * SECTION: FASTFOX                                                         *
+****************************************************************************/
+/** GFX ***/
+user_pref("gfx.canvas.accelerated.cache-size", 512);
+
+/** DISK CACHE ***/
+user_pref("browser.cache.disk.enable", false);
+
+/** NETWORK ***/
+user_pref("network.http.pacing.requests.enabled", false);
+
+/** SPECULATIVE LOADING ***/
+user_pref("network.dns.disablePrefetch", true);
+user_pref("network.dns.disablePrefetchFromHTTPS", true);
+user_pref("network.prefetch-next", false);
+user_pref("network.predictor.enabled", false);
+user_pref("network.predictor.enable-prefetch", false);
+
+/****************************************************************************
+ * SECTION: SECUREFOX                                                       *
+****************************************************************************/
+/** TRACKING PROTECTION ***/
+user_pref("browser.contentblocking.category", "strict");
+user_pref("browser.download.start_downloads_in_tmp_dir", true);
+
+/** OCSP & CERTS / HPKP ***/
+user_pref("security.OCSP.enabled", 0);
+user_pref("security.pki.crlite_mode", 2);
+
+/** DISK AVOIDANCE ***/
+user_pref("browser.sessionstore.interval", 60000);
+
+/** SHUTDOWN & SANITIZING ***/
+user_pref("browser.privatebrowsing.resetPBM.enabled", true);
+user_pref("privacy.history.custom", true);
+
+/** SEARCH / URL BAR ***/
+user_pref("browser.urlbar.quicksuggest.enabled", false);
+
+/** PASSWORDS ***/
+user_pref("signon.formlessCapture.enabled", false);
+user_pref("signon.privateBrowsingCapture.enabled", false);
+user_pref("network.auth.subresource-http-auth-allow", 1);
+user_pref("editor.truncate_user_pastes", false);
+
+/** HEADERS / REFERERS ***/
+user_pref("network.http.referer.XOriginTrimmingPolicy", 2);
+
+/** SAFE BROWSING ***/
+user_pref("browser.safebrowsing.downloads.remote.enabled", false);
+
+/** MOZILLA ***/
+user_pref("permissions.default.desktop-notification", 2);
+user_pref("permissions.default.geo", 2);
+user_pref("geo.provider.network.url", "https://beacondb.net/v1/geolocate");
+user_pref("browser.search.update", false);
+user_pref("permissions.manager.defaultsUrl", "");
+
+/****************************************************************************
+ * SECTION: PESKYFOX                                                        *
+****************************************************************************/
+/** MOZILLA UI ***/
+user_pref("browser.shell.checkDefaultBrowser", false);
+
+/** NEW TAB PAGE ***/
+user_pref("browser.newtabpage.activity-stream.default.sites", "");
+
+/** URL BAR ***/
+user_pref("dom.text_fragments.create_text_fragment.enabled", true);
+
+/****************************************************************************
+ * START: ZEN-SPECIFIC OVERRIDES                                            *
+****************************************************************************/
+// Remove the slashes to enable the prefs
+
+// PREF: 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                                                           *
+****************************************************************************/