diff --git a/user.js b/user.js
index 5d65bb8..92d0d2f 100644
--- a/user.js
+++ b/user.js
@@ -1,6 +1,6 @@
 /******
 * name: thunderbird user.js
-* date: 21 August 2024
+* date: 31 August 2024
 * version: v128.0-beta1
 * url: https://github.com/HorlogeSkynet/thunderbird-user.js
 * license: MIT (https://github.com/HorlogeSkynet/thunderbird-user.js/blob/master/LICENSE)
@@ -27,16 +27,21 @@
          [SETUP-CHROME] changes how Thunderbird itself behaves (i.e. not directly website related)
 
 * RELEASES: https://github.com/HorlogeSkynet/thunderbird-user.js/releases
-   * It is best to use the release that is optimized for and matches your Thunderbird version
-   * ESR102
-     - If you are not using thunderbird-user.js v102-1... (not a definitive list)
-       - 2815: clearOnShutdown cookies + offlineApps should be false
-       - 9999: switch the appropriate deprecated section(s) back on
+
+  * Use the thunderbird-user.js release that matches your Thunderbird version
+    - DON'T wait for thunderbird-user.js to update Thunderbird, nothing major changes these days
+  * Each release
+    - run prefsCleaner to reset prefs made inactive, including deprecated (9999)
+  * If you use a previous ESR
+    - 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 (thunderbird-user.js is already past that release)
+    - If you decide to keep updating, then the onus is on you - also see section 9999
 
 * INDEX:
 
   0100: STARTUP
-  0200: GEOLOCATION / LANGUAGE / LOCALE
+  0200: GEOLOCATION
   0300: QUIETER BIRD
   0400: SAFE BROWSING
   0600: BLOCK IMPLICIT OUTBOUND
@@ -45,7 +50,6 @@
   0900: PASSWORDS
   1000: DISK AVOIDANCE
   1200: HTTPS (SSL/TLS / OCSP / CERTS / HPKP)
-  1400: FONTS
   1600: REFERERS
   1700: CONTAINERS
   2000: PLUGINS / MEDIA / WEBRTC
@@ -53,7 +57,8 @@
   2600: MISCELLANEOUS
   2700: ETP (ENHANCED TRACKING PROTECTION)
   2800: SHUTDOWN & SANITIZING
-  4500: RFP (RESIST FINGERPRINTING)
+  4000: FPP (fingerprintingProtection)
+  4500: OPTIONAL RFP (resistFingerprinting)
   5000: OPTIONAL OPSEC
   5500: OPTIONAL HARDENING
   6000: DON'T TOUCH
@@ -64,7 +69,7 @@
   9200: EMAIL COMPOSITION (ENCODING / FORMAT / VIEW)
   9300: OTHER THUNDERBIRD COMPONENTS (CHAT / CALENDAR / RSS)
   9400: THUNDERBIRD ENCRYPTION (OPENPGP / GNUPG)
-  9999: DEPRECATED / REMOVED / LEGACY / RENAMED
+  9999: DEPRECATED / RENAMED
 
 ******/
 
@@ -87,27 +92,12 @@ user_pref("_user.js.parrot", "0100 syntax error: the parrot's dead!");
  * true=? (default), false=blank page ***/
 user_pref("browser.newtabpage.enabled", false);
 
-/*** [SECTION 0200]: GEOLOCATION / LANGUAGE / LOCALE ***/
+/*** [SECTION 0200]: GEOLOCATION ***/
 user_pref("_user.js.parrot", "0200 syntax error: the parrot's definitely deceased!");
-/* 0201: use Mozilla geolocation service instead of Google if permission is granted [FF74+]
- * Optionally enable logging to the console (defaults to false) ***/
-user_pref("geo.provider.network.url", "https://location.services.mozilla.com/v1/geolocate?key=%MOZILLA_API_KEY%");
-   // user_pref("geo.provider.network.logging.enabled", true); // [HIDDEN PREF]
 /* 0202: disable using the OS's geolocation service ***/
 user_pref("geo.provider.ms-windows-location", false); // [WINDOWS]
 user_pref("geo.provider.use_corelocation", false); // [MAC]
-user_pref("geo.provider.use_gpsd", false); // [LINUX]
 user_pref("geo.provider.use_geoclue", false); // [FF102+] [LINUX]
-/* 0210: set preferred language for displaying pages
- * [SETTING] General > Language & Appearance > Language > Choose the language used to display...
- * [TEST] https://addons.mozilla.org/about ***/
-user_pref("intl.accept_languages", "en-US, en");
-/* 0210b: Set dictionary to US ***/
-user_pref("spellchecker.dictionary", "en-US");
-/* 0211: use en-US locale regardless of the system or region locale
- * [SETUP-WEB] May break some input methods e.g xim/ibus for CJK languages [1]
- * [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=867501,1629630 ***/
-user_pref("javascript.use_us_english_locale", true); // [HIDDEN PREF]
 
 /*** [SECTION 0300]: QUIETER BIRD ***/
 user_pref("_user.js.parrot", "0300 syntax error: the parrot's not pinin' for the fjords!");
@@ -116,6 +106,13 @@ user_pref("_user.js.parrot", "0300 syntax error: the parrot's not pinin' for the
 user_pref("extensions.getAddons.showPane", false); // [HIDDEN PREF]
 /* 0321: disable recommendations in about:addons' Extensions and Themes panes [FF68+] ***/
 user_pref("extensions.htmlaboutaddons.recommendations.enabled", false);
+/* 0322: disable personalized Extension Recommendations in about:addons and AMO [FF65+]
+ * [NOTE] This pref has no effect when Health Reports (0331) are disabled
+ * [1] https://support.mozilla.org/kb/personalized-extension-recommendations ***/
+user_pref("browser.discovery.enabled", false);
+/* 0323: disable shopping experience [FF116+]
+ * [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1840156#c0 ***/
+user_pref("browser.shopping.experience2023.enabled", false); // [DEFAULT: false]
 
 /** TELEMETRY ***/
 /* 0330: disable new data submission [FF41+]
@@ -148,9 +145,6 @@ 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);
 
 /** STUDIES ***/
 /* 0340: disable Studies
@@ -263,7 +257,7 @@ user_pref("network.prefetch-next", false);
 /* 0602: disable DNS prefetching
  * [1] https://developer.mozilla.org/docs/Web/HTTP/Headers/X-DNS-Prefetch-Control ***/
 user_pref("network.dns.disablePrefetch", true);
-   // user_pref("network.dns.disablePrefetchFromHTTPS", true); // [DEFAULT: true]
+user_pref("network.dns.disablePrefetchFromHTTPS", true);
 /* 0603: disable predictor / prefetching ***/
 user_pref("network.predictor.enabled", false);
 user_pref("network.predictor.enable-prefetch", false); // [FF48+] [DEFAULT: false]
@@ -286,15 +280,15 @@ user_pref("_user.js.parrot", "0700 syntax error: the parrot's given up the ghost
 user_pref("network.proxy.socks_remote_dns", true);
 /* 0703: disable using UNC (Uniform Naming Convention) paths [FF61+]
  * [SETUP-CHROME] Can break extensions for profiles on network shares
- * [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/26424 ***/
+ * [1] https://bugzilla.mozilla.org/1413868 ***/
 user_pref("network.file.disable_unc_paths", true); // [HIDDEN PREF]
 /* 0704: disable GIO as a potential proxy bypass vector [FF60+]
  * Gvfs/GIO has a set of supported protocols like obex, network, archive, computer,
- * dav, cdda, gphoto2, trash, etc. By default only sftp is accepted (FF87+)
+ * dav, cdda, gphoto2, trash, etc. From FF87-117, by default only sftp was accepted
  * [1] https://bugzilla.mozilla.org/1433507
  * [2] https://en.wikipedia.org/wiki/GVfs
  * [3] https://en.wikipedia.org/wiki/GIO_(software) ***/
-user_pref("network.gio.supported-protocols", ""); // [HIDDEN PREF]
+user_pref("network.gio.supported-protocols", ""); // [HIDDEN PREF] [DEFAULT: "" FF118+]
 /* 0705: disable proxy direct failover for system requests [FF91+]
  * [WARNING] Default true is a security feature against malicious extensions [1]
  * [SETUP-CHROME] If you use a proxy and you trust your extensions
@@ -306,41 +300,59 @@ user_pref("network.gio.supported-protocols", ""); // [HIDDEN PREF]
  * [SETUP-CHROME] If you use a proxy and you understand the security impact
  * [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1732792,1733994,1733481 ***/
    // user_pref("network.proxy.allow_bypass", false);
-/* 0710: disable DNS-over-HTTPS (DoH) rollout [FF60+]
- * 0=default, 2=increased (TRR (Trusted Recursive Resolver) first), 3=max (TRR only), 5=off
+/* 0710: enable DNS-over-HTTPS (DoH) [FF60+]
+ * 0=default, 2=increased (TRR (Trusted Recursive Resolver) first), 3=max (TRR only), 5=off (no rollout)
  * see "doh-rollout.home-region": USA 2019, Canada 2021, Russia/Ukraine 2022 [3]
- * [SETTING] General > Network & Disk Space > Connection > Settings... > Enable DNS over HTTPS
+ * [SETTING] Privacy & Security>DNS over HTTPS
  * [1] https://hacks.mozilla.org/2018/05/a-cartoon-intro-to-dns-over-https/
  * [2] https://wiki.mozilla.org/Security/DOH-resolver-policy
- // * [3] https://support.mozilla.org/en-US/kb/firefox-dns-over-https
+ * [3] https://support.mozilla.org/kb/firefox-dns-over-https
  * [4] https://www.eff.org/deeplinks/2020/12/dns-doh-and-odoh-oh-my-year-review-2020 ***/
-   // user_pref("network.trr.mode", 5);
-/* 0706: disable proxy direct failover for system requests [FF91+]
- * [WARNING] Default true is a security feature against malicious extensions [1]
- * [SETUP-CHROME] If you use a proxy and you trust your extensions
- * [1] https://blog.mozilla.org/security/2021/10/25/securing-the-proxy-api-for-firefox-add-ons/ ***/
-   // user_pref("network.proxy.failover_direct", false);
+   // user_pref("network.trr.mode", 3);
+/* 0712: set DoH provider
+ * The custom uri is the value shown when you "Choose provider>Custom>"
+ * [NOTE] If you USE custom then "network.trr.uri" should be set the same
+ * [SETTING] Privacy & Security>DNS over HTTPS>Increased/Max>Choose provider ***/
+   // user_pref("network.trr.uri", "https://example.dns");
+   // user_pref("network.trr.custom_uri", "https://example.dns");
 
 /*** [SECTION 0800]: LOCATION BAR / SEARCH BAR / SUGGESTIONS / HISTORY / FORMS ***/
 user_pref("_user.js.parrot", "0800 syntax error: the parrot's ceased to be!");
-/* 0802: disable location bar domain guessing
- * domain guessing intercepts DNS "hostname not found errors" and resends a
- * request (e.g. by adding www or .com). This is inconsistent use (e.g. FQDNs), does not work
- * via Proxy Servers (different error), is a flawed use of DNS (TLDs: why treat .com
- * as the 411 for DNS errors?), privacy issues (why connect to sites you didn't
- * intend to), can leak sensitive data (e.g. query strings: e.g. Princeton attack),
- * and is a security risk (e.g. common typos & malicious sites set up to exploit this) ***/
-user_pref("browser.fixup.alternate.enabled", false); // [DEFAULT: false FF104+]
-/* 0804: disable live search suggestions
- * [NOTE] Both must be true for the location bar to work
+/* 0801: disable location bar making speculative connections [FF56+]
+ * [1] https://bugzilla.mozilla.org/1348275 ***/
+user_pref("browser.urlbar.speculativeConnect.enabled", false);
+/* 0802: disable location bar contextual suggestions
+ * [NOTE] The UI is controlled by the .enabled pref
+ * [1] https://blog.mozilla.org/data/2021/09/15/data-and-firefox-suggest/ ***/
+user_pref("browser.urlbar.quicksuggest.enabled", false); // [FF92+]
+user_pref("browser.urlbar.suggest.quicksuggest.nonsponsored", false); // [FF95+]
+user_pref("browser.urlbar.suggest.quicksuggest.sponsored", false); // [FF92+]
+/* 0803: disable live search suggestions
+ * [NOTE] Both must be true for live search to work in the location bar
  * [SETUP-CHROME] Override this if you trust and use a privacy respecting search engine ***/
 user_pref("browser.search.suggest.enabled", false);
+user_pref("browser.urlbar.suggest.searches", false);
+/* 0805: disable urlbar trending search suggestions [FF118+] ***/
+user_pref("browser.urlbar.trending.featureGate", false);
+/* 0806: disable urlbar suggestions ***/
+user_pref("browser.urlbar.addons.featureGate", false); // [FF115+]
+user_pref("browser.urlbar.mdn.featureGate", false); // [FF117+] [HIDDEN PREF]
+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);
+/* 0808: disable recent searches [FF120+]
+ * [NOTE] Recent searches are cleared with history (2811)
+ * [1] https://support.mozilla.org/kb/search-suggestions-firefox ***/
+   // user_pref("browser.urlbar.recentsearches.featureGate", false);
 /* 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)
+ * [SETUP-WEB] Be aware that autocomplete form data can be read by third parties [1][2]
  * [1] https://blog.mindedsecurity.com/2011/10/autocompleteagain.html
  * [2] https://bugzilla.mozilla.org/381681 ***/
 user_pref("browser.formfill.enable", false);
+/* 0815: disable tab-to-search [FF85+] ***/
+user_pref("browser.urlbar.suggest.engines", false);
 /* 0820: disable coloring of visited links
  * Bulk rapid history sniffing was mitigated in 2010 [1][2]. Slower and more expensive
  * redraw timing attacks were largely mitigated in FF77+ [3]. Using RFP (4501) further hampers timing
@@ -352,6 +364,9 @@ user_pref("browser.formfill.enable", false);
  * [4] https://earthlng.github.io/testpages/visited_links.html (see github wiki APPENDIX A on how to use)
  * [5] https://lcamtuf.blogspot.com/2016/08/css-mix-blend-mode-is-bad-for-keeping.html ***/
 user_pref("layout.css.visited_links_enabled", false);
+/* 0830: enable separate default search engine in Private Windows and its UI setting ***/
+user_pref("browser.search.separatePrivateDefault", true); // [FF70+]
+user_pref("browser.search.separatePrivateDefault.ui.enabled", true); // [FF71+]
 
 /*** [SECTION 0900]: PASSWORDS
    [1] https://support.mozilla.org/kb/use-primary-password-protect-stored-logins-and-pas
@@ -387,8 +402,8 @@ user_pref("network.auth.subresource-http-auth-allow", 1);
 /*** [SECTION 1000]: DISK AVOIDANCE ***/
 user_pref("_user.js.parrot", "1000 syntax error: the parrot's gone to meet 'is maker!");
 /* 1001: disable disk cache
- * [SETUP-CHROME] If you think disk cache helps perf, then feel free to override this
- * [NOTE] We also clear cache on exit (2811) ***/
+ * [NOTE] We also clear cache on exit (2811)
+ * [SETUP-CHROME] If you think disk cache helps perf, then feel free to override this ***/
 user_pref("browser.cache.disk.enable", false);
 /* 1002: disable media cache from writing to disk in Private Browsing
  * [NOTE] MSE (Media Source Extensions) are already stored in-memory in PB ***/
@@ -398,6 +413,14 @@ user_pref("media.memory_cache_max_size", 65536);
  * define on which sites to save extra session data such as form content, cookies and POST data
  * 0=everywhere, 1=unencrypted sites, 2=nowhere ***/
 user_pref("browser.sessionstore.privacy_level", 2);
+/* 1005: disable automatic Thunderbird start and session restore after reboot [FF62+] [WINDOWS]
+ * [1] https://bugzilla.mozilla.org/603903 ***/
+user_pref("toolkit.winRegisterApplicationRestart", false);
+/* 1006: disable favicons in shortcuts [WINDOWS]
+ * URL shortcuts use a cached randomly named .ico file which is stored in your
+ * profile/shortcutCache directory. The .ico remains after the shortcut is deleted
+ * If set to false then the shortcuts use a generic Firefox icon ***/
+user_pref("browser.shell.shortcutFavicons", false);
 /* 1901: disable disk cache for messages not in offline store */
 user_pref("mail.imap.use_disk_cache2", false);
 
@@ -416,7 +439,7 @@ 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 (Feb 2023) reports over 99.3% of top sites have secure renegotiation [4]
+ * [STATS] SSL Labs (May 2024) reports over 99.7% 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
@@ -453,12 +476,6 @@ user_pref("security.OCSP.enabled", 1); // [DEFAULT: 1]
 user_pref("security.OCSP.require", true);
 
 /** CERTS / HPKP (HTTP Public Key Pinning) ***/
-/* 1221: disable Windows 8.1's Microsoft Family Safety cert [FF50+] [WINDOWS]
- * 0=disable detecting Family Safety mode and importing the root
- * 1=only attempt to detect Family Safety mode (don't import the root)
- * 2=detect Family Safety mode and import the root
- * [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/21686 ***/
-user_pref("security.family_safety.mode", 0);
 /* 1223: enable strict PKP (Public Key Pinning)
  * 0=disabled, 1=allow user MiTM (default; such as your antivirus), 2=strict
  * [SETUP-WEB] MOZILLA_PKIX_ERROR_KEY_PINNING_FAILURE
@@ -468,7 +485,7 @@ user_pref("security.cert_pinning.enforcement_level", 2);
  * 0 = disabled
  * 1 = consult CRLite but only collect telemetry
  * 2 = consult CRLite and enforce both "Revoked" and "Not Revoked" results
- * 3 = consult CRLite and enforce "Not Revoked" results, but defer to OCSP for "Revoked" (FF99+, default FF100+)
+ * 3 = consult CRLite and enforce "Not Revoked" results, but defer to OCSP for "Revoked" (default)
  * [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);
@@ -481,7 +498,7 @@ user_pref("security.pki.crlite_mode", 2);
 /** MIXED CONTENT ***/
 /* 1241: disable insecure passive content (such as images) on https pages ***/
 user_pref("security.mixed_content.block_display_content", true); // Defense-in-depth (see 1244)
-/* 1244: enable HTTPS-Only mode in all windows [FF76+]
+/* 1244: enable HTTPS-Only mode in all windows
  * When the top-level is HTTPS, insecure subresources are also upgraded (silent fail)
  * [TEST] http://example.com [upgrade]
  * [TEST] http://httpforever.com/ | http://http.rip [no upgrade] ***/
@@ -512,18 +529,6 @@ user_pref("security.warn_entering_weak", true);
 user_pref("security.warn_leaving_secure", true);
 user_pref("security.warn_viewing_mixed", true);
 
-/*** [SECTION 1400]: FONTS ***/
-user_pref("_user.js.parrot", "1400 syntax error: the parrot's bereft of life!");
-/* 1402: limit font visibility (Windows, Mac, some Linux) [FF94+]
- * Uses hardcoded lists with two parts: kBaseFonts + kLangPackFonts [1], bundled fonts are auto-allowed
- * In normal windows: uses the first applicable: RFP (4506) over TP over Standard
- * In Private Browsing windows: uses the most restrictive between normal and private
- * 1=only base system fonts, 2=also fonts from optional language packs, 3=also user-installed fonts
- * [1] https://searchfox.org/mozilla-central/search?path=StandardFonts*.inc ***/
-   // user_pref("layout.css.font-visibility.private", 1);
-   // user_pref("layout.css.font-visibility.standard", 1);
-   // user_pref("layout.css.font-visibility.trackingprotection", 1);
-
 /*** [SECTION 1600]: REFERERS
                   full URI: https://example.com:8888/foo/bar.html?id=1234
      scheme+host+port+path: https://example.com:8888/foo/bar.html
@@ -541,6 +546,12 @@ user_pref("_user.js.parrot", "1700 syntax error: the parrot's bit the dust!");
  * https://wiki.mozilla.org/Security/Contextual_Identity_Project/Containers ***/
 user_pref("privacy.userContext.enabled", true);
 user_pref("privacy.userContext.ui.enabled", true);
+/* 1703: set external links to open in site-specific containers [FF123+]
+ * [SETUP-WEB] Depending on your container extension(s) and their settings
+ * true=Firefox will not choose a container (so your extension can)
+ * false=Firefox will choose the container/no-container (default)
+ * [1] https://bugzilla.mozilla.org/1874599 ***/
+   // user_pref("browser.link.force_default_user_context_id_for_external_opens", true);
 
 /*** [SECTION 2000]: PLUGINS / MEDIA / WEBRTC ***/
 user_pref("_user.js.parrot", "2000 syntax error: the parrot's snuffed it!");
@@ -548,7 +559,7 @@ user_pref("_user.js.parrot", "2000 syntax error: the parrot's snuffed it!");
 user_pref("media.peerconnection.ice.proxy_only_if_behind_proxy", true);
 /* 2003: force a single network interface for ICE candidates generation [FF42+]
  * When using a system-wide proxy, it uses the proxy interface
- * [1] https://developer.mozilla.org/en-US/docs/Web/API/RTCIceCandidate
+ * [1] https://developer.mozilla.org/docs/Web/API/RTCIceCandidate
  * [2] https://wiki.mozilla.org/Media/WebRTC/Privacy ***/
 user_pref("media.peerconnection.ice.default_address_only", true);
 /* 2004: force exclusion of private IPs from ICE candidates [FF51+]
@@ -566,12 +577,9 @@ user_pref("dom.disable_window_move_resize", true);
 
 /*** [SECTION 2600]: MISCELLANEOUS ***/
 user_pref("_user.js.parrot", "2600 syntax error: the parrot's run down the curtain!");
-/* 2601: prevent accessibility services from accessing your browser [RESTART]
- * [1] https://support.mozilla.org/kb/accessibility-services ***/
-user_pref("accessibility.force_disabled", 1);
-/* 2603: remove temp files opened with an external application
- * [1] https://bugzilla.mozilla.org/302433 ***/
-user_pref("browser.helperApps.deleteTempFileOnExit", true);
+/* 2603: remove temp files opened from non-PB windows with an external application
+ * [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=302433,1738574 ***/
+user_pref("browser.download.start_downloads_in_tmp_dir", true); // [FF102+]
 /* 2606: disable UITour backend so there is no chance that a remote page can use it ***/
 user_pref("browser.uitour.enabled", false);
 user_pref("browser.uitour.url", ""); // Defense-in-depth
@@ -603,14 +611,15 @@ user_pref("network.IDN_show_punycode", true);
  * [1] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=pdf.js+firefox ***/
 user_pref("pdfjs.disabled", false); // [DEFAULT: false]
 user_pref("pdfjs.enableScripting", false); // [FF86+]
-/* 2623: disable permissions delegation [FF73+]
- * Currently applies to cross-origin geolocation, camera, mic and screen-sharing
- * permissions, and fullscreen requests. Disabling delegation means any prompts
- * for these will show/use their correct 3rd party origin
- * [1] https://groups.google.com/forum/#!topic/mozilla.dev.platform/BdFOMAuCGW8/discussion ***/
-user_pref("permissions.delegation.enabled", false);
 /* 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.
+ * 0=Block all requests, 1=Warn on all requests (which lets the user decide), 2=Allow all requests
+ * [1] https://github.com/chromium/content_analysis_sdk */
+user_pref("browser.contentanalysis.enabled", false); // [FF121+] [DEFAULT: false]
+user_pref("browser.contentanalysis.default_result", 0); // [FF127+] [DEFAULT: 0]
 
 /** DOWNLOADS ***/
 /* 2651: enable user interaction for security by always asking where to download
@@ -622,13 +631,13 @@ user_pref("browser.download.manager.addToRecentDocs", false);
 user_pref("browser.download.always_ask_before_handling_new_types", true);
 
 /** EXTENSIONS ***/
-/* 2660: lock down allowed extension directories
- * [SETUP-CHROME] This will break extensions, language packs, themes and any other
- * XPI files which are installed outside of profile and application directories
- * [1] https://mike.kaply.com/2012/02/21/understanding-add-on-scopes/
- * [1] https://archive.is/DYjAM (archived) ***/
+/* 2660: limit allowed extension directories
+ * 1=profile, 2=user, 4=application, 8=system, 16=temporary, 31=all
+ * The pref value represents the sum: e.g. 5 would be profile and application directories
+ * [SETUP-CHROME] Breaks usage of files which are installed outside allowed directories
+ * [1] https://archive.is/DYjAM ***/
 user_pref("extensions.enabledScopes", 5); // [HIDDEN PREF]
-user_pref("extensions.autoDisableScopes", 15); // [DEFAULT: 15]
+   // user_pref("extensions.autoDisableScopes", 15); // [DEFAULT: 15]
 /* 2662: disable webextension restrictions on certain mozilla domains (you also need 4503) [FF60+]
  * [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1384330,1406795,1415644,1453988 ***/
    // user_pref("extensions.webextensions.restrictedDomains", "");
@@ -640,86 +649,132 @@ user_pref("_user.js.parrot", "2700 syntax error: the parrot's joined the bleedin
  * Opener and redirect heuristics are granted for 30 days, see [3]
  * [1] https://blog.mozilla.org/security/2021/07/13/smartblock-v2/
  * [2] https://hg.mozilla.org/mozilla-central/rev/e5483fd469ab#l4.12
- * [3] https://developer.mozilla.org/en-US/docs/Web/Privacy/State_Partitioning#storage_access_heuristics ***/
+ * [3] https://developer.mozilla.org/docs/Web/Privacy/State_Partitioning#storage_access_heuristics ***/
    // user_pref("privacy.antitracking.enableWebcompat", false);
-/* 2710: enable state partitioning of service workers [FF96+] ***/
-user_pref("privacy.partition.serviceWorkers", true); // [DEFAULT: true FF105+]
-/* 2720: enable APS (Always Partitioning Storage) ***/
-user_pref("privacy.partition.always_partition_third_party_non_cookie_storage", true); // [FF104+] [DEFAULT: true FF109+]
-user_pref("privacy.partition.always_partition_third_party_non_cookie_storage.exempt_sessionstorage", false); // [FF105+] [DEFAULT: false FF109+]
 
 /*** [SECTION 2800]: SHUTDOWN & SANITIZING ***/
 user_pref("_user.js.parrot", "2800 syntax error: the parrot's bleedin' demised!");
-/* 2810: enable Thunderbird to clear items on shutdown ***/
+/* 2810: enable Thunderbird to clear items on shutdown
+ * [NOTE] In FF129+ clearing "siteSettings" on shutdown (2811), or manually via site data (2820) and
+ * via history (2830), will no longer remove sanitize on shutdown "cookie and site data" site exceptions (2815) ***/
 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] Exceptions: A "cookie" permission also controls "offlineApps" (see note below). 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 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 SITE DATA: IGNORES "ALLOW" SITE EXCEPTIONS ***/
+/* 2820: set manual "Clear Data" items [SETUP-CHROME] [FF128+]
+ * Thunderbird remembers your last choices. This will reset them when you start Thunderbird
+ * [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 HISTORY: IGNORES "ALLOW" SITE EXCEPTIONS | clearHistory migration is FF128+ ***/
+/* 2830: set manual "Clear History" items, also via Ctrl-Shift-Del [SETUP-CHROME]
  * Thunderbird remembers your last choices. This will reset them when you start Thunderbird
  * [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" ***/
 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", true); // [DEFAULT: false]
-user_pref("privacy.cpd.cookies", true);
-   // 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)
  * Thunderbird remembers your last choice. This will reset the value when you start Thunderbird
  * 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,
  * which will display a blank value, and are not guaranteed to work ***/
 user_pref("privacy.sanitize.timeSpan", 0);
 
-/*** [SECTION 4500]: RFP (RESIST FINGERPRINTING)
-   RFP covers a wide range of ongoing fingerprinting solutions.
-   It is an all-or-nothing buy in: you cannot pick and choose what parts you want
+/*** [SECTION 4000]: FPP (fingerprintingProtection)
+   RFP (4501) overrides FPP
+   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 (4004).
+   https://searchfox.org/mozilla-central/source/toolkit/components/resistfingerprinting/RFPTargetsDefault.inc
+
+   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", "4000 syntax error: the parrot's bereft of life!");
+/* 4001: enable FPP in PB mode [FF114+]
+ * [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+]
+ * uses "RFPTargets" [1] which despite the name these are not used by RFP
+ * e.g. "+AllTargets,-CSSPrefersColorScheme,-JSDateTimeUTC" = all targets but allow prefers-color-scheme and do not change timezone
+ * e.g. "-AllTargets,+CanvasRandomization,+JSDateTimeUTC" = no targets but do use FPP canvas and change timezone
+ * [NOTE] Not supported by arkenfox. Either use RFP or FPP at defaults
+ * [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: set granular FPP overrides
+ * JSON format: e.g."[{\"firstPartyDomain\": \"netflix.com\", \"overrides\": \"-CanvasRandomization,-FrameRate,\"}]"
+ * [NOTE] Not supported by arkenfox. Either use RFP or FPP at defaults ***/
+   // user_pref("privacy.fingerprintingProtection.granularOverrides", "");
+/* 4004: disable remote FPP overrides [FF127+] ***/
+   // user_pref("privacy.fingerprintingProtection.remoteOverrides.enabled", false);
+
+/*** [SECTION 4500]: OPTIONAL RFP (resistFingerprinting)
+   RFP overrides FPP (4000)
+
+   FF128+ Arkenfox by default uses FPP (automatically enabled with ETP Strict). For most people
+   this is all you need. To use RFP instead, add RFP (4501) to your overrides, and optionally
+   add letterboxing (4504), spoof_english (4506), and webgl (4520).
+   RFP is an all-or-nothing buy in: you cannot pick and choose what parts you want
    [TEST] https://arkenfox.github.io/TZP/tzp.html
 
    [WARNING] DO NOT USE extensions to alter RFP protected metrics
 
     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)
    1217238 - reduce precision of time exposed by javascript (FF55)
  FF56
-   1369303 - spoof/disable performance API
    1333651 - spoof User Agent & Navigator API
-      version: android version spoofed as ESR
+      version: android version spoofed as ESR (FF119 or lower)
       OS: JS spoofed as Windows 10, OS 10.15, Android 10, or Linux | HTTP Headers spoofed as Windows or Android
    1369319 - disable device sensor API
    1369357 - disable site specific zoom
@@ -730,13 +785,12 @@ user_pref("privacy.sanitize.timeSpan", 0);
    1369309 - spoof media statistics
    1382499 - reduce screen co-ordinate fingerprinting in Touch API
    1217290 & 1409677 - enable some fingerprinting resistance for WebGL
-   1382545 - reduce fingerprinting in Animation API
    1354633 - limit MediaError.message to a whitelist
  FF58+
    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.
@@ -755,20 +809,22 @@ user_pref("privacy.sanitize.timeSpan", 0);
    1653987 - limit font visibility to bundled and "Base Fonts" (Windows, Mac, some Linux) (FF80)
    1461454 - spoof smooth=true and powerEfficient=false for supported media in MediaCapabilities (FF82)
     531915 - use fdlibm's sin, cos and tan in jsmath (FF93, ESR91.1)
-   1756280 - enforce navigator.pdfViewerEnabled as true and plugins/mimeTypes as hard-coded values (FF100)
+   1756280 - enforce navigator.pdfViewerEnabled as true and plugins/mimeTypes as hard-coded values (FF100-115)
    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 privacy.resistFingerprinting
- * [SETUP-WEB] RFP can cause some website breakage: mainly canvas, use a site exception via the urlbar
- * RFP also has a few side effects: mainly timezone is UTC0, and websites will prefer light theme
+/* 4501: enable RFP
  * [NOTE] pbmode applies if true and the original pref is false
- * [1] https://bugzilla.mozilla.org/418986 ***/
-user_pref("privacy.resistFingerprinting", true); // [FF41+]
+ * [SETUP-WEB] RFP can cause some website breakage: mainly canvas, use a canvas site exception via the urlbar.
+ * RFP also has a few side effects: mainly that timezone is GMT, and websites will prefer light theme ***/
+   // user_pref("privacy.resistFingerprinting", true); // [FF41+]
    // user_pref("privacy.resistFingerprinting.pbmode", true); // [FF114+]
-/* 4502: set new window size rounding max values [FF55+]
+/* 4502: set RFP new window size max rounded values [FF55+]
  * [SETUP-CHROME] sizes round down in hundreds: width to 200s and height to 100s, to fit your screen
  * [1] https://bugzilla.mozilla.org/1330882 ***/
 user_pref("privacy.window.maxInnerWidth", 1600);
@@ -776,8 +832,8 @@ user_pref("privacy.window.maxInnerHeight", 900);
 /* 4503: disable mozAddonManager Web API [FF57+]
  * [NOTE] To allow extensions to work on AMO, you also need 2662 and 4505
  * [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1384330,1406795,1415644,1453988 ***/
-user_pref("privacy.resistFingerprinting.block_mozAddonManager", true); // [HIDDEN PREF FF57-108]
-/* 4504: enable RFP letterboxing [FF67+]
+user_pref("privacy.resistFingerprinting.block_mozAddonManager", true);
+/* 4504: enable letterboxing [FF67+]
  * Dynamically resizes the inner window by applying margins in stepped ranges [2]
  * If you use the dimension pref, then it will only apply those resolutions.
  * The format is "width1xheight1, width2xheight2, ..." (e.g. "800x600, 1000x1000")
@@ -786,24 +842,19 @@ user_pref("privacy.resistFingerprinting.block_mozAddonManager", true); // [HIDDE
  * [WARNING] DO NOT USE: the dimension pref is only meant for testing
  * [1] https://bugzilla.mozilla.org/1407366
  * [2] https://hg.mozilla.org/mozilla-central/rev/6d2d7856e468#l2.32 ***/
-user_pref("privacy.resistFingerprinting.letterboxing", true); // [HIDDEN PREF]
+   // user_pref("privacy.resistFingerprinting.letterboxing", true); // [HIDDEN PREF]
    // user_pref("privacy.resistFingerprinting.letterboxing.dimensions", ""); // [HIDDEN PREF]
-/* 4505: experimental RFP [FF91+]
- * List of domains exempted from RFP (comma-separated).
- * [WARNING] DO NOT USE unless testing, see [1] comment 12
- * [1] https://bugzilla.mozilla.org/1635603 ***/
+/* 4505: disable RFP by domain (comma-separated) [FF91+] ***/
    // user_pref("privacy.resistFingerprinting.exemptedDomains", "addons.thunderbird.net");
-/* 4506: set RFP's font visibility level (1402) [FF94+] ***/
-   // user_pref("layout.css.font-visibility.resistFingerprinting", 1); // [DEFAULT: 1]
+/* 4506: disable RFP spoof english prompt [FF59+]
+ * 0=prompt, 1=disabled, 2=enabled
+ * [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]
-/* 4511: enforce non-native widget theme
- * Security: removes/reduces system API calls, e.g. win32k API [1]
- * Fingerprinting: provides a uniform look and feel across platforms [2]
- * [1] https://bugzilla.mozilla.org/1381938
- * [2] https://bugzilla.mozilla.org/1411425 ***/
-user_pref("widget.non-native-theme.enabled", true); // [DEFAULT: true]
 /* 4512: enforce links targeting new windows to open in a new tab instead
  * 1=most recent window or tab, 2=new window, 3=new tab
  * Stops malicious window sizes and some screen resolution leaks.
@@ -818,8 +869,7 @@ user_pref("browser.link.open_newwindow", 3); // [DEFAULT: 3]
  * [1] https://searchfox.org/mozilla-central/source/dom/tests/browser/browser_test_new_window_from_content.js
  * [2] https://searchfox.org/comm-esr102/source/mail/app/profile/all-thunderbird.js#730 ***/
 user_pref("browser.link.open_newwindow.restriction", 0);
-/* 4520: disable WebGL (Web Graphics Library)
- * [SETUP-WEB] If you need it then override it. RFP still randomizes canvas for naive scripts ***/
+/* 4520: disable WebGL (Web Graphics Library) ***/
 user_pref("webgl.disabled", true);
 
 /*** [SECTION 5000]: OPTIONAL OPSEC
@@ -866,6 +916,26 @@ user_pref("browser.sessionstore.max_tabs_undo", 0);
  * Application data isolation [1]
  * [1] https://bugzilla.mozilla.org/1281959 ***/
    // user_pref("browser.download.forbid_open_with", true);
+/* 5010: disable location bar suggestion types ***/
+user_pref("browser.urlbar.suggest.history", false);
+user_pref("browser.urlbar.suggest.bookmark", false);
+user_pref("browser.urlbar.suggest.openpage", false);
+user_pref("browser.urlbar.suggest.topsites", false); // [FF78+]
+/* 5011: disable location bar dropdown
+ * This value controls the total number of entries to appear in the location bar dropdown ***/
+user_pref("browser.urlbar.maxRichResults", 0);
+/* 5012: disable location bar autofill
+ * [1] https://support.mozilla.org/kb/address-bar-autocomplete-firefox#w_url-autocomplete ***/
+user_pref("browser.urlbar.autoFill", false);
+/* 5013: disable browsing and download history
+ * [NOTE] We also clear history and downloads on exit (2811)
+ * [SETTING] Privacy & Security>History>Custom Settings>Remember browsing and download history ***/
+user_pref("places.history.enabled", false);
+/* 5014: disable Windows jumplist [WINDOWS] ***/
+user_pref("browser.taskbar.lists.enabled", false);
+user_pref("browser.taskbar.lists.frequent.enabled", false);
+user_pref("browser.taskbar.lists.recent.enabled", false);
+user_pref("browser.taskbar.lists.tasks.enabled", false);
 /* 5013: disable browsing and download history
  * [NOTE] We also clear history and downloads on exit (2811) ***/
 user_pref("places.history.enabled", false);
@@ -876,8 +946,8 @@ user_pref("places.history.enabled", false);
  * If .supportedCountries includes your region (browser.search.region) and .supported
  * is "detect" (default), then the UI will show. Stored data is not secure, uses JSON
  * [1] https://wiki.mozilla.org/Firefox/Features/Form_Autofill ***/
- user_pref("extensions.formautofill.addresses.enabled", false); // [FF55+]
- user_pref("extensions.formautofill.creditCards.enabled", false); // [FF56+]
+user_pref("extensions.formautofill.addresses.enabled", false); // [FF55+]
+user_pref("extensions.formautofill.creditCards.enabled", false); // [FF56+]
 /* 5018: limit events that can cause a pop-up ***/
 user_pref("dom.popup_allowed_events", "click dblclick mousedown pointerdown");
 /* 5019: disable page thumbnail collection ***/
@@ -911,7 +981,7 @@ user_pref("gfx.font_rendering.graphite.enabled", false);
  * [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);
-/* 5505: disable Ion and baseline JIT to harden against JS exploits
+/* 5505: disable Ion and baseline JIT to harden against JS exploits [RESTART]
  * [NOTE] When both Ion and JIT are disabled, and trustedprincipals
  * is enabled, then Ion can still be used by extensions (1599226)
  * [1] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=firefox+jit
@@ -923,7 +993,7 @@ user_pref("javascript.options.jit_trustedprincipals", true); // [FF75+] [HIDDEN
  * 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 crytomining / malvertising [2][3]
+ * [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 ***/
@@ -939,8 +1009,8 @@ user_pref("browser.eme.ui.enabled", false);
 /* 5509: disable IPv6 if using a VPN
  * This is an application level fallback. Disabling IPv6 is best done at an OS/network
  * level, and/or configured properly in system wide VPN setups.
- * If you see PR_CONNECT_RESET_ERROR, this pref *might* be the cause
  * [NOTE] PHP defaults to IPv6 with "localhost". Use "php -S 127.0.0.1:PORT"
+ * [SETUP-WEB] PR_CONNECT_RESET_ERROR
  * [TEST] https://ipleak.org/
  * [1] https://www.internetsociety.org/tag/ipv6-security/ (Myths 2,4,5,6) ***/
    // user_pref("network.dns.disableIPv6", true);
@@ -948,6 +1018,11 @@ user_pref("browser.eme.ui.enabled", false);
  * 0=always (default), 1=only if base domains match, 2=only if hosts match
  * [NOTE] Will cause breakage: older modems/routers and some sites e.g banks, vimeo, icloud, instagram ***/
 user_pref("network.http.referer.XOriginPolicy", 2);
+/* 5511: set DoH bootstrap address [FF89+]
+ * Thunderbird uses the system DNS to initially resolve the IP address of your DoH server.
+ * When set to a valid, working value that matches your "network.trr.uri" (0712) Thunderbird
+ * won't use the system DNS. If the IP doesn't match then DoH won't work ***/
+   // user_pref("network.trr.bootstrapAddr", "10.0.0.1"); // [HIDDEN PREF]
 /* 5590: show a prompt when opening a link in external applications ***/
 user_pref("security.external_protocol_requires_permission", true);
 
@@ -967,10 +1042,10 @@ user_pref("security.dialog_enable_delay", 1000); // [DEFAULT: 1000]
  * [WARNING] Replaced with network partitioning (FF85+) and TCP (2701), and enabling FPI
  * disables those. FPI is no longer maintained except at Tor Project for Tor Browser's config ***/
 user_pref("privacy.firstparty.isolate", false); // [DEFAULT: false]
-/* 6009: enforce SmartBlock shims [FF81+]
+/* 6009: enforce SmartBlock shims (about:compat) [FF81+]
  * In FF96+ these are listed in about:compat
  * [1] https://blog.mozilla.org/security/2021/03/23/introducing-smartblock/ ***/
-user_pref("extensions.webcompat.enable_shims", true); // [DEFAULT: true]
+user_pref("extensions.webcompat.enable_shims", true); // [HIDDEN PREF] [DEFAULT: true]
 /* 6010: enforce no TLS 1.0/1.1 downgrades
  * [TEST] https://tls-v1-1.badssl.com:1010/ ***/
 user_pref("security.tls.version.enable-deprecated", false); // [DEFAULT: false]
@@ -981,21 +1056,16 @@ user_pref("extensions.webcompat-reporter.enabled", false); // [DEFAULT: false]
 /* 6012: enforce Quarantined Domains [FF115+]
  * [WHY] https://support.mozilla.org/kb/quarantined-domains */
 user_pref("extensions.quarantinedDomains.enabled", true); // [DEFAULT: true]
-/* 6050: prefsCleaner: reset previously active items removed from arkenfox FF102+ ***/
-   // user_pref("beacon.enabled", "");
-   // user_pref("browser.region.network.url", "");
-   // user_pref("browser.region.update.enabled", "");
-   // user_pref("browser.ssl_override_behavior", "");
-   // user_pref("devtools.chrome.enabled", "");
-   // user_pref("dom.disable_beforeunload", "");
-   // user_pref("dom.disable_open_during_load", "");
-   // user_pref("extensions.formautofill.available", "");
-   // user_pref("extensions.formautofill.addresses.supported", "");
-   // user_pref("extensions.formautofill.creditCards.available", "");
-   // user_pref("extensions.formautofill.creditCards.supported", "");
-   // user_pref("middlemouse.contentLoadURL", "");
-/* 6051: prefsCleaner: reset previously active items removed from arkenfox FF115+ ***/
+/* 6050: prefsCleaner: previously active items removed from arkenfox 115-127 ***/
+   // user_pref("accessibility.force_disabled", "");
+   // user_pref("browser.urlbar.dnsResolveSingleWordsAfterSearch", "");
+   // user_pref("geo.provider.network.url", "");
+   // user_pref("geo.provider.network.logging.enabled", "");
+   // user_pref("geo.provider.use_gpsd", "");
    // user_pref("network.protocol-handler.external.ms-windows-store", "");
+   // user_pref("privacy.partition.always_partition_third_party_non_cookie_storage", "");
+   // user_pref("privacy.partition.always_partition_third_party_non_cookie_storage.exempt_sessionstorage", "");
+   // user_pref("privacy.partition.serviceWorkers", "");
 
 /*** [SECTION 7000]: DON'T BOTHER
    Thunderbird-User.JS maintainer here :
@@ -1012,8 +1082,8 @@ user_pref("full-screen-api.enabled", false);
 /* 7003: disable non-modern cipher suites [1]
  * [WHY] Passive fingerprinting. Minimal/non-existent threat of downgrade attacks
  * [1] https://browserleaks.com/ssl ***/
-   // user_pref("security.ssl3.ecdhe_ecdsa_aes_256_sha", false); // [DEFAULT: false FF109+]
-   // user_pref("security.ssl3.ecdhe_ecdsa_aes_128_sha", false); // [DEFAULT: false FF109+]
+   // user_pref("security.ssl3.ecdhe_ecdsa_aes_256_sha", false);
+   // user_pref("security.ssl3.ecdhe_ecdsa_aes_128_sha", false);
    // user_pref("security.ssl3.ecdhe_rsa_aes_128_sha", false);
    // user_pref("security.ssl3.ecdhe_rsa_aes_256_sha", false);
    // user_pref("security.ssl3.rsa_aes_128_gcm_sha256", false); // no PFS
@@ -1065,12 +1135,14 @@ user_pref("dom.event.clipboardevents.enabled", false);
  * [WHY] DNT is enforced with Tracking Protection which is used in ETP Strict (2701) ***/
    // user_pref("privacy.donottrackheader.enabled", true);
 /* 7016: customize ETP settings
+ * [NOTE] FPP (fingerprintingProtection) is ignored when RFP (4501) is enabled
  * [WHY] Arkenfox only supports strict (2701) which sets these at runtime ***/
-   // user_pref("network.cookie.cookieBehavior", 5); // [DEFAULT: 5 FF103+]
+   // user_pref("network.cookie.cookieBehavior", 5); // [DEFAULT: 5]
+   // user_pref("privacy.fingerprintingProtection", true); // [FF114+] [ETP FF119+]
    // user_pref("network.http.referer.disallowCrossSiteRelaxingDefault", true);
    // user_pref("network.http.referer.disallowCrossSiteRelaxingDefault.top_navigation", true); // [FF100+]
-   // user_pref("privacy.partition.network_state.ocsp_cache", true);
-   // user_pref("privacy.query_stripping.enabled", true); // [FF101+] [ETP FF102+]
+   // user_pref("privacy.partition.network_state.ocsp_cache", true); // [DEFAULT: true FF123+]
+   // user_pref("privacy.query_stripping.enabled", true); // [FF101+]
    // user_pref("privacy.trackingprotection.enabled", true);
    // user_pref("privacy.trackingprotection.socialtracking.enabled", true);
    // user_pref("privacy.trackingprotection.cryptomining.enabled", true); // [DEFAULT: true]
@@ -1078,13 +1150,12 @@ user_pref("dom.event.clipboardevents.enabled", false);
 /* 7017: disable service workers
  * [WHY] Already isolated with TCP (2701) behind a pref (2710) ***/
    // user_pref("dom.serviceWorkers.enabled", false);
-/* 7018: disable Web Notifications
+/* 7018: disable Web Notifications [FF22+]
  * [WHY] Web Notifications are behind a prompt (7002)
  * [1] https://blog.mozilla.org/en/products/firefox/block-notification-requests/ ***/
-   // user_pref("dom.webnotifications.enabled", false); // [FF22+]
-   // user_pref("dom.webnotifications.serviceworker.enabled", false); // [FF44+]
+   // 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);
@@ -1095,6 +1166,10 @@ user_pref("dom.event.clipboardevents.enabled", false);
  * [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
@@ -1129,7 +1204,10 @@ user_pref("_user.js.parrot", "8000 syntax error: the parrot's crossed the Jordan
 /*** [SECTION 9000]: NON-PROJECT RELATED ***/
 user_pref("_user.js.parrot", "9000 syntax error: the parrot's cashed in 'is chips!");
 /* 9001: disable welcome notices ***/
-user_pref("browser.startup.homepage_override.mstone", "ignore");
+user_pref("browser.startup.homepage_override.mstone", "ignore"); // [HIDDEN PREF]
+/* 9002: disable extensions/features recommendations as you browse [FF67+] ***/
+user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.addons", false);
+user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features", false);
 /* 9090: disable return receipt sending unconditionally ***/
    // user_pref("mail.mdn.report.enabled", false);
 /* 9099: e-mail custom headers (examples) ***/
@@ -1268,6 +1346,8 @@ user_pref("mail.sanitize_date_header", true);
 /* 9210: Check spelling before sending
  * [1] https://bugzilla.mozilla.org/show_bug.cgi?id=667133 ***/
    // user_pref("mail.SpellCheckBeforeSend", false);
+/* 9211: Set dictionary to US ***/
+user_pref("spellchecker.dictionary", "en-US");
 /* 9212: Compose email in plaintext unless expressly overridden
  * Sometimes HTML is useful especially when used with Markdown Here
  * [SETTING] Account Settings > Composition & Addressing > Composition > Compose messages in HTML format
@@ -1455,39 +1535,71 @@ user_pref("_user.js.parrot", "9400 syntax error: this parrot is talking in codes
  * [1] https://wiki.mozilla.org/Thunderbird:OpenPGP:Smartcards#Allow_the_use_of_external_GnuPG ***/
 user_pref("mail.openpgp.allow_external_gnupg", true);  // [HIDDEN PREF]
 
-/*** [SECTION 9999]: DEPRECATED / REMOVED / LEGACY / RENAMED
-   Documentation denoted as [-]. Items deprecated prior to FF91 have been archived at [1]
-   [1] https://github.com/arkenfox/user.js/issues/123
-***/
+/*** [SECTION 9999]: DEPRECATED / RENAMED ***/
 user_pref("_user.js.parrot", "9999 syntax error: the parrot's shuffled off 'is mortal coil!");
-/* ESR102.x still uses all the following prefs
+/* ESR115.x still uses all the following prefs
 // [NOTE] replace the * with a slash in the line above to re-enable active ones
-// FF103
-// 2801: delete cookies and site data on exit - replaced by sanitizeOnShutdown* (2810)
-   // 0=keep until they expire (default), 2=keep until you close Thunderbird
-   // [-] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1681493,1681495,1681498,1759665,1764761
-user_pref("network.cookie.lifetimePolicy", 2);
-// 6012: disable SHA-1 certificates
-   // [-] https://bugzilla.mozilla.org/1766687
-   // user_pref("security.pki.sha1_enforcement_level", 1); // [DEFAULT: 1]
-// FF114
-// 2816: set cache to clear on exit [FF96+]
-   // [NOTE] We already disable disk cache (1001) and clear on exit (2811) which is more robust
-   // [1] https://bugzilla.mozilla.org/1671182
-   // [-] https://bugzilla.mozilla.org/1821651
-   // user_pref("privacy.clearsitedata.cache.enabled", true);
-// 4505: experimental RFP [FF91+]
-   // [-] https://bugzilla.mozilla.org/1824235
-   // user_pref("privacy.resistFingerprinting.testGranularityMask", 0);
-// 5017: disable Form Autofill heuristics
-   // Heuristics controls Form Autofill on forms without @autocomplete attributes
-   // [-] https://bugzilla.mozilla.org/1829670
-   // user_pref("extensions.formautofill.heuristics.enabled", false); // [FF55+]
-// FF115
-   // 7001: disable offline cache (appCache)
-   // [NOTE] appCache storage capability was removed in FF90
-   // [-] https://bugzilla.mozilla.org/1677718
-   // user_pref("browser.cache.offline.enable", false);
+// FF116
+// 4506: set RFP's font visibility level (1402) [FF94+]
+   // [-] https://bugzilla.mozilla.org/1838415
+   // user_pref("layout.css.font-visibility.resistFingerprinting", 1); // [DEFAULT: 1]
+// FF117
+// 1221: disable Windows Microsoft Family Safety cert [FF50+] [WINDOWS]
+   // 0=disable detecting Family Safety mode and importing the root
+   // 1=only attempt to detect Family Safety mode (don't import the root)
+   // 2=detect Family Safety mode and import the root
+   // [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/21686
+   // [-] https://bugzilla.mozilla.org/1844908
+user_pref("security.family_safety.mode", 0);
+// 7018: disable service worker Web Notifications [FF44+]
+   // [WHY] Web Notifications are behind a prompt (7002)
+   // [1] https://blog.mozilla.org/en/products/firefox/block-notification-requests/
+   // [-] https://bugzilla.mozilla.org/1842457
+   // user_pref("dom.webnotifications.serviceworker.enabled", false);
+// FF118
+// 1402: limit font visibility (Windows, Mac, some Linux) [FF94+]
+   // Uses hardcoded lists with two parts: kBaseFonts + kLangPackFonts [1], bundled fonts are auto-allowed
+   // In normal windows: uses the first applicable: RFP over TP over Standard
+   // In Private Browsing windows: uses the most restrictive between normal and private
+   // 1=only base system fonts, 2=also fonts from optional language packs, 3=also user-installed fonts
+   // [1] https://searchfox.org/mozilla-central/search?path=StandardFonts*.inc
+   // [-] https://bugzilla.mozilla.org/1847599
+   // user_pref("layout.css.font-visibility.private", 1);
+   // user_pref("layout.css.font-visibility.standard", 1);
+   // user_pref("layout.css.font-visibility.trackingprotection", 1);
+// 2623: disable permissions delegation [FF73+]
+   // Currently applies to cross-origin geolocation, camera, mic and screen-sharing
+   // permissions, and fullscreen requests. Disabling delegation means any prompts
+   // for these will show/use their correct 3rd party origin
+   // [1] https://groups.google.com/forum/#!topic/mozilla.dev.platform/BdFOMAuCGW8/discussion
+   // [-] https://bugzilla.mozilla.org/1697151
+   // user_pref("permissions.delegation.enabled", false);
+// FF119
+// 0211: use en-US locale regardless of the system or region locale
+   // [SETUP-WEB] May break some input methods e.g xim/ibus for CJK languages [1]
+   // [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=867501,1629630
+   // [-] https://bugzilla.mozilla.org/1846224
+   // user_pref("javascript.use_us_english_locale", true); // [HIDDEN PREF]
+// 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);
+// FF126
+// 9003: disable What's New toolbar icon [FF69+]
+   // [-] https://bugzilla.mozilla.org/1724300
+user_pref("browser.messaging-system.whatsNewPanel.enabled", false);
+// FF127
+  // 2630: disable content analysis by DLP (Data Loss Prevention) agents - replaced by default_result
+  // [-] https://bugzilla.mozilla.org/1880314
+user_pref("browser.contentanalysis.default_allow", false);
+// 4511: enforce non-native widget theme
+   // Security: removes/reduces system API calls, e.g. win32k API [1]
+   // Fingerprinting: provides a uniform look and feel across platforms [2]
+   // [1] https://bugzilla.mozilla.org/1381938
+   // [2] https://bugzilla.mozilla.org/1411425
+   // [-] https://bugzilla.mozilla.org/1848899
+user_pref("widget.non-native-theme.enabled", true); // [DEFAULT: true]
 // ***/
 
 /* END: internal custom pref to test for syntax errors ***/