Update user.js

Fastfox.js

@@ -22,12 +22,6 @@
 //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.
@@ -53,13 +47,13 @@ user_pref("gfx.content.skia-font-cache-size", 32); // 32 MB; default=5; Chrome=2
 // [1] https://searchfox.org/mozilla-central/rev/c1180ea13e73eb985a49b15c0d90e977a1aa919c/modules/libpref/init/StaticPrefList.yaml#1824-1834
 // [2] https://web.archive.org/web/20240115073722/https://dev.opera.com/articles/efficient-javascript/?page=3#reflow
 // [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.notify.interval", 100000); // (.10s); default=120000 (.12s)
-//user_pref("content.max.tokenizing.time", 1000000); // (1.00s); alt=2000000; HIDDEN
+user_pref("content.max.tokenizing.time", 1000000); // (1.00s); alt=2000000; HIDDEN
-//user_pref("content.interrupt.parsing", true); // HIDDEN
+user_pref("content.interrupt.parsing", true); // HIDDEN
-//user_pref("content.notify.ontimer", true); // DEFAULT
+user_pref("content.notify.ontimer", true); // HIDDEN
 
 // PREF: UI responsiveness threshold
-//user_pref("content.switch.threshold", 300000); // HIDDEN; default= 750000; alt=500000
+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.
@@ -79,7 +73,7 @@ user_pref("gfx.content.skia-font-cache-size", 32); // 32 MB; default=5; Chrome=2
 // [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1796525
 // [3] https://bugzilla.mozilla.org/show_bug.cgi?id=1800412
 // [4] https://reddit.com/r/firefox/comments/107fj69/how_can_i_disable_the_efficiency_mode_on_firefox/
-//user_pref("dom.ipc.processPriorityManager.backgroundUsesEcoQoS", false);
+user_pref("dom.ipc.processPriorityManager.backgroundUsesEcoQoS", false);
 
 // PREF: control how tabs are loaded when a session is restored
 // true=Tabs are not loaded until they are selected (default)
@@ -135,11 +129,13 @@ user_pref("gfx.content.skia-font-cache-size", 32); // 32 MB; default=5; Chrome=2
 // [3] https://github.com/yokoffing/Betterfox/issues/198
 //user_pref("gfx.canvas.accelerated", true); // [DEFAULT FF133+]
 user_pref("gfx.canvas.accelerated.cache-items", 32768); // [default=8192 FF135+]; Chrome=4096
-user_pref("gfx.canvas.accelerated.cache-size", 4096); // default=256; Chrome=512
+user_pref("gfx.canvas.accelerated.cache-size", 4096); // default=256; Chrome=512; alt=4096
+user_pref("gfx.content.skia-font-cache-size", 32); // default=5; Chrome=20
 //user_pref("gfx.canvas.max-size", 32767); // DEFAULT=32767
+    // [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1239151#c2
 
 // PREF: WebGL
-user_pref("webgl.max-size", 16384); // default=1024
+user_pref("webgl.max-size", 8192); // default=1024
 //user_pref("webgl.force-enabled", true);
 
 // PREF: prefer GPU over CPU
@@ -288,8 +284,8 @@ user_pref("browser.cache.disk.enable", false);
 // [1] https://kb.mozillazine.org/Browser.cache.memory.capacity#-1
 // [2] https://searchfox.org/mozilla-central/source/netwerk/cache2/CacheObserver.cpp#94-125
 // [3] https://github.com/WaterfoxCo/Waterfox/commit/3fed16932c80a2f6b37d126fe10aed66c7f1c214
-user_pref("browser.cache.memory.capacity", 131072); // 128 MB RAM cache; alt=65536 (65 MB RAM cache); default=32768
+user_pref("browser.cache.memory.capacity", 65536); // 64MB RAM cache; alt=131072 (128 MB RAM cache)
-user_pref("browser.cache.memory.max_entry_size", 20480); // 20 MB max entry; default=5120 (5 MB)
+user_pref("browser.cache.memory.max_entry_size", 32768); // 32 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
@@ -303,8 +299,8 @@ user_pref("browser.cache.memory.max_entry_size", 20480); // 20 MB max entry; def
 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.default_quota", 20480); // 20MB; default=5120
-//user_pref("dom.storage.shadow_writes", true);
+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.
@@ -319,11 +315,11 @@ user_pref("browser.sessionstore.max_tabs_undo", 10); // default=25
 
 // 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#issuecomment-668278121
+// [2] https://github.com/arkenfox/user.js/pull/941
-user_pref("media.memory_cache_max_size", 262144); // 256 MB; default=8192; AF=65536
+user_pref("media.memory_cache_max_size", 524288); // 512MB; default=8192; AF=65536; alt=131072
 
 // PREF: media cache combine sizes
-user_pref("media.memory_caches_combined_limit_kb", 1048576); // 1GB; default=524288
+user_pref("media.memory_caches_combined_limit_kb", 2097152); // 2GB; 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
@@ -396,7 +392,7 @@ user_pref("network.http.pacing.requests.enabled", false);
 
 // PREF: increase DNS cache
 // [1] https://developer.mozilla.org/en-US/docs/Web/Performance/Understanding_latency
-user_pref("network.dnsCacheEntries", 10000); // default=800
+user_pref("network.dnsCacheEntries", 10000); // default=400
 
 // PREF: adjust DNS expiration time
 // [ABOUT] about:networking#dns

Peskyfox.js

@@ -109,15 +109,12 @@ user_pref("browser.ml.enable", false);
 // PREF: AI chat
 user_pref("browser.ml.chat.enabled", false);
 
-// PREF: AI chatbot option in right click menu
-user_pref("browser.ml.chat.menu", false);
-
 // PREF: AI-enhanced tab groups
 // [1] https://support.mozilla.org/kb/how-use-ai-enhanced-tab-groups
-user_pref("browser.tabs.groups.smart.enabled", false);
+//user_pref("browser.tabs.groups.smart.enabled", false);
 
 // PREF: link previews
-user_pref("browser.ml.linkPreview.enabled", false);
+//user_pref("browser.ml.linkPreview.enabled", false);
 
 /****************************************************************************
  * SECTION: COOKIE BANNER HANDLING                                          *

README.md

@@ -46,7 +46,6 @@ The `user.js` — a configuration file that controls Firefox settings — is cur
 > While the browsers listed below incorporate Betterfox to some extent, they often modify it in ways that reduce its effectiveness. For optimal results, apply the `user.js` file even when using Firefox forks.
 
 * [Zen](https://github.com/zen-browser/desktop?tab=readme-ov-file) | [files](https://github.com/zen-browser/desktop/blob/stable/src/browser/app/profile/zen-browser.js) (July 2024)
-* [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)

Securefox.js

@@ -24,7 +24,7 @@
 user_pref("browser.contentblocking.category", "strict"); // [HIDDEN]
 // [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1970647
 user_pref("privacy.trackingprotection.allow_list.baseline.enabled", true); // [FF142+]
-//user_pref("privacy.trackingprotection.allow_list.convenience.enabled", true); // [FF142+]
+user_pref("privacy.trackingprotection.allow_list.convenience.enabled", true); // [FF142+]
 //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
@@ -1138,53 +1138,6 @@ user_pref("privacy.userContext.ui.enabled", true);
     // Optionally, hide the setting which also disables the DRM prompt:
     //user_pref("browser.eme.ui.enabled", false);
 
-/******************************************************************************
- * SECTION: JIT                                                              *
-******************************************************************************/
-// PREF: Just-In-Time Compilation
-// Around half of zero-day exploits are directly related to "just in time"
-// (JIT) compilers, and disabling that can greatly improve your protection against
-// these potential exploits.
-// [1] https://microsoftedge.github.io/edgevr/posts/Super-Duper-Secure-Mode/
-// [2] https://www.youtube.com/watch?v=i7qlZeDt9o4
-
-// PREF: JavaScript JIT
-// PREF: disable Ion and baseline JIT to harden against JS exploits
-// [NOTE] When both Ion and JIT are disabled, and trustedprincipals
-// is enabled, then Ion can still be used by extensions [4].
-// Tor Browser doesn't even ship with these disabled by default.
-// [1] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=firefox+jit
-// [2] https://microsoftedge.github.io/edgevr/posts/Super-Duper-Secure-Mode/
-// [3] https://support.microsoft.com/en-us/microsoft-edge/enhance-your-security-on-the-web-with-microsoft-edge-b8199f13-b21b-4a08-a806-daed31a1929d
-// [4] https://bugzilla.mozilla.org/show_bug.cgi?id=1599226
-// [5] https://wiki.mozilla.org/IonMonkey
-// [6] https://github.com/arkenfox/user.js/issues/1791#issuecomment-1891273681
-//user_pref("javascript.options.baselinejit", false);
-//user_pref("javascript.options.ion", false);
-//user_pref("javascript.options.jit_trustedprincipals", false);
-
-// PREF: WebAssembly JIT [FF52+]
-// Vulnerabilities [1] have increasingly been found, including those known and fixed
-// in native programs years ago [2]. WASM has powerful low-level access, making
-// certain attacks (brute-force) and vulnerabilities more possible.
-// [STATS] ~0.2% of websites, about half of which are for cryptomining / malvertising [2][3]
-// [1] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=wasm
-// [2] https://spectrum.ieee.org/tech-talk/telecom/security/more-worries-over-the-security-of-web-assembly
-// [3] https://www.zdnet.com/article/half-of-the-websites-using-webassembly-use-it-for-malicious-purposes
-//user_pref("javascript.options.wasm", false);
-    //user_pref("javascript.options.wasm_trustedprincipals", false);
-    //user_pref("javascript.options.wasm_baselinejit", false);
-    //user_pref("javascript.options.wasm_optimizingjit", false);
-
-// PREF: Asm.js JIT [FF22+]
-// [1] http://asmjs.org/
-// [2] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=asm.js
-// [3] https://rh0dev.github.io/blog/2017/the-return-of-the-jit/
-//user_pref("javascript.options.asmjs", false);
-
-// PREF: Blinterp (JIT-like)
-//user_pref("javascript.options.blinterp", false);
-     
 /******************************************************************************
  * SECTION: VARIOUS                                                          *
 ******************************************************************************/
@@ -1198,6 +1151,39 @@ user_pref("privacy.userContext.ui.enabled", true);
 // If this is less than 5, then pasting code into the web console is disabled.
 //user_pref("devtools.selfxss.count", 5);
 
+// PREF: disable asm.js [FF22+]
+// [WARNING] Disabling this pref may disrupt your browsing experience.
+// [1] http://asmjs.org/
+// [2] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=asm.js
+// [3] https://rh0dev.github.io/blog/2017/the-return-of-the-jit/
+//user_pref("javascript.options.asmjs", false);
+
+// PREF: disable Ion and baseline JIT to harden against JS exploits
+// [NOTE] When both Ion and JIT are disabled, and trustedprincipals
+// is enabled, then Ion can still be used by extensions [4].
+// [WARNING] Disabling these prefs will disrupt your browsing experience [6].
+// Tor Browser doesn't even ship with these disabled by default.
+// [1] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=firefox+jit
+// [2] https://microsoftedge.github.io/edgevr/posts/Super-Duper-Secure-Mode/
+// [3] https://support.microsoft.com/en-us/microsoft-edge/enhance-your-security-on-the-web-with-microsoft-edge-b8199f13-b21b-4a08-a806-daed31a1929d
+// [4] https://bugzilla.mozilla.org/show_bug.cgi?id=1599226
+// [5] https://wiki.mozilla.org/IonMonkey
+// [6] https://github.com/arkenfox/user.js/issues/1791#issuecomment-1891273681
+//user_pref("javascript.options.ion", false);
+//user_pref("javascript.options.baselinejit", false);
+//user_pref("javascript.options.jit_trustedprincipals", true); // [FF75+] [HIDDEN PREF]
+
+// PREF: disable WebAssembly [FF52+]
+// [WARNING] Disabling this pref may disrupt your browsing experience.
+// Vulnerabilities [1] have increasingly been found, including those known and fixed
+// in native programs years ago [2]. WASM has powerful low-level access, making
+// certain attacks (brute-force) and vulnerabilities more possible.
+// [STATS] ~0.2% of websites, about half of which are for cryptomining / malvertising [2][3]
+// [1] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=wasm
+// [2] https://spectrum.ieee.org/tech-talk/telecom/security/more-worries-over-the-security-of-web-assembly
+// [3] https://www.zdnet.com/article/half-of-the-websites-using-webassembly-use-it-for-malicious-purposes
+//user_pref("javascript.options.wasm", false);
+
 /******************************************************************************
  * SECTION: SAFE BROWSING (SB)                                               *
 ******************************************************************************/

install.py

@@ -51,10 +51,6 @@ INSTALLATIONS_TO_CHECK = [
         "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"],

user.js

@@ -18,39 +18,31 @@
  * SECTION: FASTFOX                                                         *
 ****************************************************************************/
 /** GENERAL ***/
-user_pref("gfx.content.skia-font-cache-size", 32);
+user_pref("content.notify.interval", 100000);
 
 /** GFX ***/
-user_pref("gfx.canvas.accelerated.cache-items", 32768);
+user_pref("gfx.canvas.accelerated.cache-size", 512);
-user_pref("gfx.canvas.accelerated.cache-size", 4096);
+user_pref("gfx.content.skia-font-cache-size", 20);
-user_pref("webgl.max-size", 16384);
 
 /** DISK CACHE ***/
 user_pref("browser.cache.disk.enable", false);
 
 /** MEMORY CACHE ***/
-user_pref("browser.cache.memory.capacity", 131072);
-user_pref("browser.cache.memory.max_entry_size", 20480);
 user_pref("browser.sessionhistory.max_total_viewers", 4);
-user_pref("browser.sessionstore.max_tabs_undo", 10);
 
 /** MEDIA CACHE ***/
-user_pref("media.memory_cache_max_size", 262144);
+user_pref("media.memory_cache_max_size", 65536);
-user_pref("media.memory_caches_combined_limit_kb", 1048576);
+user_pref("media.cache_readahead_limit", 7200);
-user_pref("media.cache_readahead_limit", 600);
+user_pref("media.cache_resume_threshold", 3600);
-user_pref("media.cache_resume_threshold", 300);
 
 /** IMAGE CACHE ***/
-user_pref("image.cache.size", 10485760);
+user_pref("image.mem.decode_bytes_at_a_time", 32768);
-user_pref("image.mem.decode_bytes_at_a_time", 65536);
 
 /** NETWORK ***/
 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.request.max-start-delay", 5);
 user_pref("network.http.pacing.requests.enabled", false);
-user_pref("network.dnsCacheEntries", 10000);
 user_pref("network.dnsCacheExpiration", 3600);
 user_pref("network.ssl_tokens_cache_capacity", 10240);
 
@@ -63,12 +55,16 @@ user_pref("browser.places.speculativeConnect.enabled", false);
 user_pref("network.prefetch-next", false);
 user_pref("network.predictor.enabled", false);
 
+/** EXPERIMENTAL ***/
+user_pref("layout.css.grid-template-masonry-value.enabled", true);
+
 /****************************************************************************
  * SECTION: SECUREFOX                                                       *
 ****************************************************************************/
 /** TRACKING PROTECTION ***/
 user_pref("browser.contentblocking.category", "strict");
 user_pref("privacy.trackingprotection.allow_list.baseline.enabled", true);
+user_pref("privacy.trackingprotection.allow_list.convenience.enabled", true);
 user_pref("browser.download.start_downloads_in_tmp_dir", true);
 user_pref("browser.helperApps.deleteTempFileOnExit", true);
 user_pref("browser.uitour.enabled", false);
@@ -183,9 +179,7 @@ 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");
@@ -234,3 +228,5 @@ user_pref("layout.word_select.eat_space_to_next_word", false);
 /****************************************************************************
  * END: BETTERFOX                                                           *
 ****************************************************************************/
+
+