v126

user.js

@@ -1,7 +1,7 @@
 /******
 *    name: arkenfox user.js
-*    date: 5 February 2024
-* version: 122
+*    date: 7 June 2024
+* version: 126
 *    urls: https://github.com/arkenfox/user.js [repo]
 *        : https://arkenfox.github.io/gui/ [interactive]
 * license: MIT: https://github.com/arkenfox/user.js/blob/master/LICENSE.txt
@@ -35,7 +35,7 @@
     - It is recommended to not use the updater, or you will get a later version which may cause issues.
       So you should manually append your overrides (and keep a copy), and manually update when you
       change ESR releases (arkenfox is already past that release)
-    - If you decide to keep updating, then the onus is on - also see section 9999
+    - If you decide to keep updating, then the onus is on you - also see section 9999
 
 * INDEX:
 
@@ -95,8 +95,8 @@ user_pref("browser.startup.homepage", "about:blank");
 user_pref("browser.newtabpage.enabled", false);
 /* 0105: disable sponsored content on Firefox Home (Activity Stream)
  * [SETTING] Home>Firefox Home Content ***/
-user_pref("browser.newtabpage.activity-stream.showSponsored", false); // [FF58+] Pocket > Sponsored Stories
-user_pref("browser.newtabpage.activity-stream.showSponsoredTopSites", false); // [FF83+] Sponsored shortcuts
+user_pref("browser.newtabpage.activity-stream.showSponsored", false); // [FF58+]
+user_pref("browser.newtabpage.activity-stream.showSponsoredTopSites", false); // [FF83+] Shortcuts>Sponsored shortcuts
 /* 0106: clear default topsites
  * [NOTE] This does not block you from adding your own ***/
 user_pref("browser.newtabpage.activity-stream.default.sites", "");
@@ -158,9 +158,6 @@ user_pref("toolkit.telemetry.firstShutdownPing.enabled", false); // [FF57+]
 user_pref("toolkit.telemetry.coverage.opt-out", true); // [HIDDEN PREF]
 user_pref("toolkit.coverage.opt-out", true); // [FF64+] [HIDDEN PREF]
 user_pref("toolkit.coverage.endpoint.base", "");
-/* 0334: disable PingCentre telemetry (used in several System Add-ons) [FF57+]
- * Defense-in-depth: currently covered by 0331 ***/
-user_pref("browser.ping-centre.telemetry", false);
 /* 0335: disable Firefox Home (Activity Stream) telemetry ***/
 user_pref("browser.newtabpage.activity-stream.feeds.telemetry", false);
 user_pref("browser.newtabpage.activity-stream.telemetry", false);
@@ -303,12 +300,14 @@ user_pref("_user.js.parrot", "0800 syntax error: the parrot's ceased to be!");
  * [1] https://bugzilla.mozilla.org/1348275 ***/
 user_pref("browser.urlbar.speculativeConnect.enabled", false);
 /* 0802: disable location bar contextual suggestions
- * [SETTING] Privacy & Security>Address Bar>Suggestions from...
+ * [NOTE] The UI is controlled by the .enabled pref
+ * [SETTING] Search>Address Bar>Suggestions from...
  * [1] https://blog.mozilla.org/data/2021/09/15/data-and-firefox-suggest/ ***/
-user_pref("browser.urlbar.suggest.quicksuggest.nonsponsored", false); // [FF95+]
-user_pref("browser.urlbar.suggest.quicksuggest.sponsored", false); // [FF92+]
+   // user_pref("browser.urlbar.quicksuggest.enabled", false); // [FF92+] [DEFAULT: false]
+   // user_pref("browser.urlbar.suggest.quicksuggest.nonsponsored", false); // [FF95+] [DEFAULT: false]
+   // user_pref("browser.urlbar.suggest.quicksuggest.sponsored", false); // [FF92+] [DEFAULT: false]
 /* 0803: disable live search suggestions
- * [NOTE] Both must be true for the location bar to work
+ * [NOTE] Both must be true for live search to work in the location bar
  * [SETUP-CHROME] Override these if you trust and use a privacy respecting search engine
  * [SETTING] Search>Provide search suggestions | Show search suggestions in address bar results ***/
 user_pref("browser.search.suggest.enabled", false);
@@ -321,8 +320,9 @@ user_pref("browser.urlbar.addons.featureGate", false); // [FF115+]
 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.yelp.featureGate", false); // [FF124+] [DEFAULT: false]
 /* 0807: disable urlbar clipboard suggestions [FF118+] ***/
-   // user_pref("browser.urlbar.clipboard.featureGate", false); // [DEFAULT: false]
+   // user_pref("browser.urlbar.clipboard.featureGate", false); // [DEFAULT: true FF125+]
 /* 0810: disable search and form history
  * [SETUP-WEB] Be aware that autocomplete form data can be read by third parties [1][2]
  * [NOTE] We also clear formdata on exit (2811)
@@ -332,7 +332,7 @@ user_pref("browser.urlbar.weather.featureGate", false); // [FF108+] [DEFAULT: fa
 user_pref("browser.formfill.enable", false);
 /* 0815: disable tab-to-search [FF85+]
  * Alternatively, you can exclude on a per-engine basis by unchecking them in Options>Search
- * [SETTING] Privacy & Security>Address Bar>When using the address bar, suggest>Search engines ***/
+ * [SETTING] Search>Address Bar>When using the address bar, suggest>Search engines ***/
    // user_pref("browser.urlbar.suggest.engines", false);
 /* 0820: disable coloring of visited links
  * [SETUP-HARDEN] Bulk rapid history sniffing was mitigated in 2010 [1][2]. Slower and more expensive
@@ -412,7 +412,7 @@ user_pref("_user.js.parrot", "1200 syntax error: the parrot's a stiff!");
  * but the problem is that the browser can't know that. Setting this pref to true is the only way for the
  * browser to ensure there will be no unsafe renegotiations on the channel between the browser and the server
  * [SETUP-WEB] SSL_ERROR_UNSAFE_NEGOTIATION: is it worth overriding this for that one site?
- * [STATS] SSL Labs (Nov 2023) reports over 99.5% of top sites have secure renegotiation [4]
+ * [STATS] SSL Labs (April 2024) reports over 99.6% of top sites have secure renegotiation [4]
  * [1] https://wiki.mozilla.org/Security:Renegotiation
  * [2] https://datatracker.ietf.org/doc/html/rfc5746
  * [3] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3555
@@ -583,6 +583,11 @@ user_pref("pdfjs.disabled", false); // [DEFAULT: false]
 user_pref("pdfjs.enableScripting", false); // [FF86+]
 /* 2624: disable middle click on new tab button opening URLs or searches using clipboard [FF115+] */
 user_pref("browser.tabs.searchclipboardfor.middleclick", false); // [DEFAULT: false NON-LINUX]
+/* 2630: disable content analysis by DLP (Data Loss Prevention) agents
+ * DLP agents are background processes on managed computers that allow enterprises to monitor locally running
+ * applications for data exfiltration events, which they can allow/block based on customer defined DLP policies.
+ * [1] https://github.com/chromium/content_analysis_sdk */
+user_pref("browser.contentanalysis.default_allow", false); // [FF124+] [DEFAULT: false]
 
 /** DOWNLOADS ***/
 /* 2651: enable user interaction for security by always asking where to download
@@ -636,51 +641,70 @@ user_pref("_user.js.parrot", "2800 syntax error: the parrot's bleedin' demised!"
  * [SETTING] Privacy & Security>History>Custom Settings>Clear history when Firefox closes | Settings ***/
 user_pref("privacy.sanitize.sanitizeOnShutdown", true);
 
-/** SANITIZE ON SHUTDOWN: IGNORES "ALLOW" SITE EXCEPTIONS ***/
+/** SANITIZE ON SHUTDOWN: IGNORES "ALLOW" SITE EXCEPTIONS | v2 migration is FF128+ ***/
 /* 2811: set/enforce what items to clear on shutdown (if 2810 is true) [SETUP-CHROME]
- * [NOTE] If "history" is true, downloads will also be cleared
- * [NOTE] "sessions": Active Logins: refers to HTTP Basic Authentication [1], not logins via cookies
- * [1] https://en.wikipedia.org/wiki/Basic_access_authentication ***/
+ * [NOTE] If "history" is true, downloads will also be cleared ***/
 user_pref("privacy.clearOnShutdown.cache", true);     // [DEFAULT: true]
+user_pref("privacy.clearOnShutdown_v2.cache", true);  // [FF128+] [DEFAULT: true]
 user_pref("privacy.clearOnShutdown.downloads", true); // [DEFAULT: true]
 user_pref("privacy.clearOnShutdown.formdata", true);  // [DEFAULT: true]
 user_pref("privacy.clearOnShutdown.history", true);   // [DEFAULT: true]
-user_pref("privacy.clearOnShutdown.sessions", true);  // [DEFAULT: true]
+user_pref("privacy.clearOnShutdown_v2.historyFormDataAndDownloads", true); // [FF128+] [DEFAULT: true]
    // user_pref("privacy.clearOnShutdown.siteSettings", false); // [DEFAULT: false]
+   // user_pref("privacy.clearOnShutdown_v2.siteSettings", false); // [FF128+] [DEFAULT: false]
 /* 2812: set Session Restore to clear on shutdown (if 2810 is true) [FF34+]
  * [NOTE] Not needed if Session Restore is not used (0102) or it is already cleared with history (2811)
  * [NOTE] If true, this prevents resuming from crashes (also see 5008) ***/
    // user_pref("privacy.clearOnShutdown.openWindows", true);
 
-/** SANITIZE ON SHUTDOWN: RESPECTS "ALLOW" SITE EXCEPTIONS FF103+ ***/
+/** SANITIZE ON SHUTDOWN: RESPECTS "ALLOW" SITE EXCEPTIONS FF103+ | v2 migration is FF128+ ***/
 /* 2815: set "Cookies" and "Site Data" to clear on shutdown (if 2810 is true) [SETUP-CHROME]
  * [NOTE] Exceptions: A "cookie" block permission also controls "offlineApps" (see note below).
  * serviceWorkers require an "Allow" permission. For cross-domain logins, add exceptions for
  * both sites e.g. https://www.youtube.com (site) + https://accounts.google.com (single sign on)
  * [NOTE] "offlineApps": Offline Website Data: localStorage, service worker cache, QuotaManager (IndexedDB, asm-cache)
+ * [NOTE] "sessions": Active Logins (has no site exceptions): refers to HTTP Basic Authentication [1], not logins via cookies
  * [WARNING] Be selective with what sites you "Allow", as they also disable partitioning (1767271)
  * [SETTING] to add site exceptions: Ctrl+I>Permissions>Cookies>Allow (when on the website in question)
- * [SETTING] to manage site exceptions: Options>Privacy & Security>Permissions>Settings ***/
+ * [SETTING] to manage site exceptions: Options>Privacy & Security>Permissions>Settings
+ * [1] https://en.wikipedia.org/wiki/Basic_access_authentication ***/
 user_pref("privacy.clearOnShutdown.cookies", true); // Cookies
 user_pref("privacy.clearOnShutdown.offlineApps", true); // Site Data
+user_pref("privacy.clearOnShutdown.sessions", true);  // Active Logins [DEFAULT: true]
+user_pref("privacy.clearOnShutdown_v2.cookiesAndStorage", true) // Cookies, Site Data, Active Logins [FF128+]
+
+/** SANITIZE SITE DATA: IGNORES "ALLOW" SITE EXCEPTIONS ***/
+/* 2820: set manual "Clear Data" items [SETUP-CHROME] [FF128+]
+ * Firefox remembers your last choices. This will reset them when you start Firefox
+ * [SETTING] Privacy & Security>Browser Privacy>Cookies and Site Data>Clear Data ***/
+user_pref("privacy.clearSiteData.cache", true);
+user_pref("privacy.clearSiteData.cookiesAndStorage", false); // keep false until it respects "allow" site exceptions
+user_pref("privacy.clearSiteData.historyFormDataAndDownloads", true);
+   // user_pref("privacy.clearSiteData.siteSettings", false);
 
-/** SANITIZE MANUAL: IGNORES "ALLOW" SITE EXCEPTIONS ***/
-/* 2820: reset default items to clear with Ctrl-Shift-Del [SETUP-CHROME]
- * This dialog can also be accessed from the menu History>Clear Recent History
+/** SANITIZE HISTORY: IGNORES "ALLOW" SITE EXCEPTIONS | clearHistory migration is FF128+ ***/
+/* 2830: set manual "Clear History" items, also via Ctrl-Shift-Del [SETUP-CHROME]
  * Firefox remembers your last choices. This will reset them when you start Firefox
  * [NOTE] Regardless of what you set "downloads" to, as soon as the dialog
- * for "Clear Recent History" is opened, it is synced to the same as "history" ***/
+ * for "Clear Recent History" is opened, it is synced to the same as "history"
+ * [SETTING] Privacy & Security>History>Custom Settings>Clear History ***/
 user_pref("privacy.cpd.cache", true);    // [DEFAULT: true]
+user_pref("privacy.clearHistory.cache", true);
 user_pref("privacy.cpd.formdata", true); // [DEFAULT: true]
 user_pref("privacy.cpd.history", true);  // [DEFAULT: true]
+   // user_pref("privacy.cpd.downloads", true); // not used, see note above
+user_pref("privacy.clearHistory.historyFormDataAndDownloads", true);
+user_pref("privacy.cpd.cookies", false);
 user_pref("privacy.cpd.sessions", true); // [DEFAULT: true]
 user_pref("privacy.cpd.offlineApps", false); // [DEFAULT: false]
-user_pref("privacy.cpd.cookies", false);
-   // user_pref("privacy.cpd.downloads", true); // not used, see note above
+user_pref("privacy.clearHistory.cookiesAndStorage", false);
    // user_pref("privacy.cpd.openWindows", false); // Session Restore
    // user_pref("privacy.cpd.passwords", false);
    // user_pref("privacy.cpd.siteSettings", false);
-/* 2822: reset default "Time range to clear" for "Clear Recent History" (2820)
+   // user_pref("privacy.clearHistory.siteSettings", false);
+
+/** SANITIZE MANUAL: TIMERANGE ***/
+/* 2840: set "Time range to clear" for "Clear Data" (2820) and "Clear History" (2830)
  * Firefox remembers your last choice. This will reset the value when you start Firefox
  * 0=everything, 1=last hour, 2=last two hours, 3=last four hours, 4=today
  * [NOTE] Values 5 (last 5 minutes) and 6 (last 24 hours) are not listed in the dropdown,
@@ -692,15 +716,15 @@ user_pref("privacy.sanitize.timeSpan", 0);
 
    In FF118+ FPP is on by default in private windows (4001) and in FF119+ is controlled
    by ETP (2701). FPP will also use Remote Services in future to relax FPP protections
-   on a per site basis for compatibility (pref coming).
+   on a per site basis for compatibility (4003).
 
    1826408 - restrict fonts to system (kBaseFonts + kLangPackFonts) (Windows, Mac, some Linux)
       https://searchfox.org/mozilla-central/search?path=StandardFonts*.inc
    1858181 - subtly randomize canvas per eTLD+1, per session and per window-mode (FF120+)
 ***/
-user_pref("_user.js.parrot", "1400 syntax error: the parrot's bereft of life!");
+user_pref("_user.js.parrot", "4000 syntax error: the parrot's bereft of life!");
 /* 4001: enable FPP in PB mode [FF114+]
- * [NOTE] In FF119+, FPP for all modes (7106) is enabled with ETP Strict (2701) ***/
+ * [NOTE] In FF119+, FPP for all modes (7016) is enabled with ETP Strict (2701) ***/
    // user_pref("privacy.fingerprintingProtection.pbmode", true); // [DEFAULT: true FF118+]
 /* 4002: set global FPP overrides [FF114+]
  * Controls what protections FPP uses globally, including "RFPTargets" (despite the name these are
@@ -709,6 +733,8 @@ user_pref("_user.js.parrot", "1400 syntax error: the parrot's bereft of life!");
  * [WARNING] Not recommended. Either use RFP or FPP at defaults
  * [1] https://searchfox.org/mozilla-central/source/toolkit/components/resistfingerprinting/RFPTargets.inc ***/
    // user_pref("privacy.fingerprintingProtection.overrides", "");
+/* 4003: disable remote FPP overrides [FF127+] ***/
+   // user_pref("privacy.fingerprintingProtection.remoteOverrides.enabled"; false);
 
 /*** [SECTION 4500]: RFP (resistFingerprinting)
    RFP overrides FPP (4000)
@@ -720,7 +746,6 @@ user_pref("_user.js.parrot", "1400 syntax error: the parrot's bereft of life!");
 
     418986 - limit window.screen & CSS media queries (FF41)
    1281949 - spoof screen orientation (FF50)
-   1330890 - spoof timezone as UTC0 (FF55)
    1360039 - spoof navigator.hardwareConcurrency as 2 (FF55)
  FF56
    1333651 - spoof User Agent & Navigator API
@@ -740,7 +765,7 @@ user_pref("_user.js.parrot", "1400 syntax error: the parrot's bereft of life!");
    1372073 - spoof/block fingerprinting in MediaDevices API (FF59)
       Spoof: enumerate devices as one "Internal Camera" and one "Internal Microphone"
       Block: suppresses the ondevicechange event
-   1039069 - warn when language prefs are not set to "en*" (also see 0210, 0211) (FF59)
+   1039069 - warn when language prefs are not set to "en*" (FF59)
    1222285 & 1433592 - spoof keyboard events and suppress keyboard modifier events (FF59)
       Spoofing mimics the content language of the document. Currently it only supports en-US.
       Modifier events suppressed are SHIFT and both ALT keys. Chrome is not affected.
@@ -763,6 +788,9 @@ user_pref("_user.js.parrot", "1400 syntax error: the parrot's bereft of life!");
    1692609 - reduce JS timing precision to 16.67ms (previously FF55+ was 100ms) (FF102)
    1422237 - return "srgb" with color-gamut (FF110)
    1794628 - return "none" with inverted-colors (FF114)
+   1554751 - return devicePixelRatio as 2 (previously FF41+ was 1) (FF127)
+   1787790 - normalize system fonts (FF128)
+   1835987 - spoof timezone as Atlantic/Reykjavik (previously FF55+ was UTC) (FF128)
 ***/
 user_pref("_user.js.parrot", "4500 syntax error: the parrot's popped 'is clogs");
 /* 4501: enable RFP
@@ -796,6 +824,12 @@ user_pref("privacy.resistFingerprinting.letterboxing", true); // [HIDDEN PREF]
  * [WARNING] DO NOT USE unless testing, see [1] comment 12
  * [1] https://bugzilla.mozilla.org/1635603 ***/
    // user_pref("privacy.resistFingerprinting.exemptedDomains", "*.example.invalid");
+/* 4506: disable RFP spoof english prompt [FF59+]
+ * 0=prompt, 1=disabled, 2=enabled (requires RFP)
+ * [NOTE] When changing from value 2, preferred languages ('intl.accept_languages') is not reset.
+ * [SETUP-WEB] when enabled, sets 'en-US, en' for displaying pages and 'en-US' as locale.
+ * [SETTING] General>Language>Choose your preferred language for displaying pages>Choose>Request English... ***/
+user_pref("privacy.spoof_english", 1);
 /* 4510: disable using system colors
  * [SETTING] General>Language and Appearance>Fonts and Colors>Colors>Use system colors ***/
 user_pref("browser.display.use_system_colors", false); // [DEFAULT: false NON-WINDOWS]
@@ -867,7 +901,7 @@ user_pref("_user.js.parrot", "5000 syntax error: the parrot's taken 'is last bow
  * [1] https://bugzilla.mozilla.org/1281959 ***/
    // user_pref("browser.download.forbid_open_with", true);
 /* 5010: disable location bar suggestion types
- * [SETTING] Privacy & Security>Address Bar>When using the address bar, suggest ***/
+ * [SETTING] Search>Address Bar>When using the address bar, suggest ***/
    // user_pref("browser.urlbar.suggest.history", false);
    // user_pref("browser.urlbar.suggest.bookmark", false);
    // user_pref("browser.urlbar.suggest.openpage", false);
@@ -1108,7 +1142,7 @@ user_pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies
  * [1] https://blog.mozilla.org/en/products/firefox/block-notification-requests/ ***/
    // user_pref("dom.webnotifications.enabled", false);
 /* 7019: disable Push Notifications [FF44+]
- * [WHY] Push requires subscription
+ * [WHY] Website "push" requires subscription, and the API is required for CRLite (1224)
  * [NOTE] To remove all subscriptions, reset "dom.push.userAgentID"
  * [1] https://support.mozilla.org/kb/push-notifications-firefox ***/
    // user_pref("dom.push.enabled", false);
@@ -1119,6 +1153,10 @@ user_pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies
  * [1] https://groups.google.com/g/discuss-webrtc/c/6stQXi72BEU/m/2FwZd24UAQAJ
  * [2] https://datatracker.ietf.org/doc/html/draft-ietf-mmusic-mdns-ice-candidates#section-3.1.1 ***/
    // user_pref("media.peerconnection.enabled", false);
+/* 7021: enable GPC (Global Privacy Control) in non-PB windows
+ * [WHY] Passive and active fingerprinting. Mostly redundant with Tracking Protection
+ * in ETP Strict (2701) and sanitizing on close (2800s) ***/
+   // user_pref("privacy.globalprivacycontrol.enabled", true);
 
 /*** [SECTION 8000]: DON'T BOTHER: FINGERPRINTING
    [WHY] They are insufficient to help anti-fingerprinting and do more harm than good
@@ -1210,6 +1248,11 @@ user_pref("security.family_safety.mode", 0);
 // 0711: disable skipping DoH when parental controls are enabled [FF70+]
    // [-] https://bugzilla.mozilla.org/1586941
 user_pref("network.dns.skipTRR-when-parental-control-enabled", false);
+// FF123
+// 0334: disable PingCentre telemetry (used in several System Add-ons) [FF57+]
+   // Defense-in-depth: currently covered by 0331
+   // [-] https://bugzilla.mozilla.org/1868988
+user_pref("browser.ping-centre.telemetry", false);
 // ***/
 
 /* END: internal custom pref to test for syntax errors ***/