78-beta

Co-authored-by: rusty-snake

scratchpad-scripts/troubleshooter.js

@@ -1,5 +1,5 @@
 
-/*** ghacks-user.js troubleshooter.js v1.6.0 ***/
+/*** ghacks-user.js troubleshooter.js v1.6.1 ***/
 
 (function() {
 
@@ -107,7 +107,7 @@
   ]
 
   // any runtime-set pref that everyone will have and that can be safely reset
-  const oFILLER = { type: 64, name: 'extensions.blocklist.pingCountTotal', value: -1 };
+  const oFILLER = { type: 64, name: 'app.update.lastUpdateTime.browser-cleanup-thumbnails', value: 1580000000 };
 
   function getMyList(arr) {
     const aRet = [];

updater.sh

@@ -2,7 +2,7 @@
 
 ## ghacks-user.js updater for macOS and Linux
 
-## version: 2.5
+## version: 2.6
 ## Author: Pat Johnson (@overdodactyl)
 ## Additional contributors: @earthlng, @ema-pe, @claustromaniac
 
@@ -313,8 +313,10 @@ update_userjs () {
 
   # apply overrides
   if [ "$SKIPOVERRIDE" = false ]; then
-    while IFS=',' read -ra FILE; do
+    while IFS=',' read -ra FILES; do
-      add_override "$FILE"
+      for FILE in "${FILES[@]}"; do
+        add_override "$FILE"
+      done
     done <<< "$OVERRIDE"
   fi
 

user.js

@@ -1,7 +1,7 @@
 /******
 * name: ghacks user.js
-* date: 15 April 2020
+* date: 20 Jul 2020
-* version 75-beta
+* version 78-beta
 * authors: v52+ github | v51- www.ghacks.net
 * url: https://github.com/ghacksuserjs/ghacks-user.js
 * license: MIT: https://github.com/ghacksuserjs/ghacks-user.js/blob/master/LICENSE.txt
@@ -125,6 +125,9 @@ user_pref("browser.newtabpage.activity-stream.showSponsored", false);
 user_pref("browser.newtabpage.activity-stream.feeds.discoverystreamfeed", false); // [FF66+]
 /* 0105d: disable Activity Stream recent Highlights in the Library [FF57+] ***/
    // user_pref("browser.library.activity-stream.enabled", false);
+/* 0105e: clear default topsites
+ * [NOTE] This does not block you from adding your own ***/
+user_pref("browser.newtabpage.activity-stream.default.sites", "");
 /* 0110: start Firefox in PB (Private Browsing) mode
  * [NOTE] In this mode *all* windows are "private windows" and the PB mode icon is not displayed
  * [WARNING] The P in PB mode is misleading: it means no "persistent" disk storage such as history,
@@ -168,14 +171,16 @@ user_pref("browser.search.geoSpecificDefaults.url", "");
  * [TEST] https://addons.mozilla.org/about ***/
 user_pref("intl.accept_languages", "en-US, en");
 /* 0211: enforce US English locale regardless of the system locale
- * [1] https://bugzilla.mozilla.org/867501 ***/
+ * [SETUP-WEB] May break some input methods e.g xim/ibus for CJK languages, see [2]
+ * [1] https://bugzilla.mozilla.org/867501
+ * [2] https://bugzilla.mozilla.org/1629630 ***/
 user_pref("javascript.use_us_english_locale", true); // [HIDDEN PREF]
 /* 0212: enforce fallback text encoding to match en-US
  * When the content or server doesn't declare a charset the browser will
  * fallback to the "Current locale" based on your application language
- * [SETTING] General>Language and Appearance>Fonts and Colors>Advanced>Text Encoding for Legacy Content
+ * [SETTING] General>Language and Appearance>Fonts and Colors>Advanced>Text Encoding for Legacy Content (FF72-)
  * [TEST] https://hsivonen.com/test/moz/check-charset.htm
- * [1] https://trac.torproject.org/projects/tor/ticket/20025 ***/
+ * [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/20025 ***/
 user_pref("intl.charset.fallback.override", "windows-1252");
 
 /*** [SECTION 0300]: QUIET FOX
@@ -203,7 +208,7 @@ user_pref("app.update.auto", false);
    // user_pref("extensions.getAddons.cache.enabled", false);
 /* 0308: disable search engine updates (e.g. OpenSearch)
  * [NOTE] This does not affect Mozilla's built-in or Web Extension search engines
- * [SETTING] General>Firefox Updates>Automatically update search engines ***/
+ * [SETTING] General>Firefox Updates>Automatically update search engines (FF72-) ***/
 user_pref("browser.search.update", false);
 /* 0309: disable sending Flash crash reports ***/
 user_pref("dom.ipc.plugins.flash.subprocess.crashreporter.enabled", false);
@@ -270,12 +275,10 @@ user_pref("network.connectivity-service.enabled", false);
 /*** [SECTION 0400]: BLOCKLISTS / SAFE BROWSING (SB) ***/
 user_pref("_user.js.parrot", "0400 syntax error: the parrot's passed on!");
 /** BLOCKLISTS ***/
-/* 0401: enforce Firefox blocklist, but sanitize blocklist url
+/* 0401: enforce Firefox blocklist
  * [NOTE] It includes updates for "revoked certificates"
- * [1] https://blog.mozilla.org/security/2015/03/03/revoking-intermediate-certificates-introducing-onecrl/
+ * [1] https://blog.mozilla.org/security/2015/03/03/revoking-intermediate-certificates-introducing-onecrl/ ***/
- * [2] https://trac.torproject.org/projects/tor/ticket/16931 ***/
 user_pref("extensions.blocklist.enabled", true); // [DEFAULT: true]
-user_pref("extensions.blocklist.url", "https://blocklists.settings.services.mozilla.com/v1/blocklist/3/%APP_ID%/%APP_VERSION%/");
 
 /** SAFE BROWSING (SB)
     Safe Browsing has taken many steps to preserve privacy. *IF* required, a full url is never
@@ -390,7 +393,7 @@ user_pref("_user.js.parrot", "0700 syntax error: the parrot's given up the ghost
 /* 0701: disable IPv6
  * IPv6 can be abused, especially regarding MAC addresses. They also do not play nice
  * with VPNs. That's even assuming your ISP and/or router and/or website can handle it.
- * Firefox telemetry (April 2019) shows only 5% of all connections are IPv6
+ * [STATS] Firefox telemetry (June 2020) shows only 5% of all connections are IPv6
  * [NOTE] This is just an application level fallback. Disabling IPv6 is best done at an
  * OS/network level, and/or configured properly in VPN setups. If you are not masking your IP,
  * then this won't make much difference. If you are masking your IP, then it can only help.
@@ -430,17 +433,22 @@ user_pref("network.proxy.socks_remote_dns", true);
    // user_pref("network.ftp.enabled", false);
 /* 0709: disable using UNC (Uniform Naming Convention) paths [FF61+]
  * [SETUP-CHROME] Can break extensions for profiles on network shares
- * [1] https://trac.torproject.org/projects/tor/ticket/26424 ***/
+ * [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/26424 ***/
 user_pref("network.file.disable_unc_paths", true); // [HIDDEN PREF]
 /* 0710: disable GIO as a potential proxy bypass vector
  * Gvfs/GIO has a set of supported protocols like obex, network, archive, computer, dav, cdda,
  * gphoto2, trash, etc. By default only smb and sftp protocols are accepted so far (as of FF64)
  * [1] https://bugzilla.mozilla.org/1433507
- * [2] https://trac.torproject.org/23044
+ * [2] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/23044
  * [3] https://en.wikipedia.org/wiki/GVfs
  * [4] https://en.wikipedia.org/wiki/GIO_(software) ***/
 user_pref("network.gio.supported-protocols", ""); // [HIDDEN PREF]
 
+/*** [SECTION 0709]: HOTFIX for FF77, FIXED in FF78 ***/
+/* 0709: disabling UNC can cause extension storage to fail
+ * [1] https://github.com/ghacksuserjs/ghacks-user.js/issues/923 ***/
+user_pref("network.file.disable_unc_paths", false); // [HIDDEN PREF]
+
 /*** [SECTION 0800]: LOCATION BAR / SEARCH BAR / SUGGESTIONS / HISTORY / FORMS
      Change items 0850 and above to suit for privacy vs convenience and functionality. Consider
      your environment (no unwanted eyeballs), your device (restricted access), your device's
@@ -453,9 +461,8 @@ user_pref("_user.js.parrot", "0800 syntax error: the parrot's ceased to be!");
 /* 0801: disable location bar using search
  * Don't leak URL typos to a search engine, give an error message instead.
  * Examples: "secretplace,com", "secretplace/com", "secretplace com", "secret place.com"
- * [NOTE] Search buttons in the dropdown work, but hitting 'enter' in the location bar will fail
+ * [NOTE] This does **not** affect explicit user action such as using search buttons in the
- * [TIP] You can add keywords to search engines in options (e.g. 'd' for DuckDuckGo) and
+ * dropdown, or using keyword search shortcuts you configure in options (e.g. 'd' for DuckDuckGo)
- * the dropdown will now auto-select it and you can then hit 'enter' and it will work
  * [SETUP-CHROME] If you don't, or rarely, type URLs, or you use a default search
  * engine that respects privacy, then you probably don't need this ***/
 user_pref("keyword.enabled", false);
@@ -489,12 +496,17 @@ user_pref("browser.urlbar.usepreloadedtopurls.enabled", false);
 /* 0810: disable location bar making speculative connections [FF56+]
  * [1] https://bugzilla.mozilla.org/1348275 ***/
 user_pref("browser.urlbar.speculativeConnect.enabled", false);
+/* 0811: disable location bar leaking single words to a DNS provider **after searching** [FF78+]
+ * 0=never resolve single words, 1=heuristic (default), 2=always resolve
+ * [NOTE] For FF78 value 1 and 2 are the same and always resolve but that will change in future versions
+ * [1] https://bugzilla.mozilla.org/1642623 ***/
+user_pref("browser.urlbar.dnsResolveSingleWordsAfterSearch", 0);
 /* 0850a: disable location bar suggestion types
- * If all three suggestion types are false, search engine keywords are disabled
  * [SETTING] Privacy & Security>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);
+   // user_pref("browser.urlbar.suggest.topsites", false); // [FF78+]
 /* 0850c: disable location bar dropdown
  * This value controls the total number of entries to appear in the location bar dropdown
  * [NOTE] Items (bookmarks/history/openpages) with a high "frecency"/"bonus" will always
@@ -506,9 +518,6 @@ user_pref("browser.urlbar.speculativeConnect.enabled", false);
 /* 0850d: disable location bar autofill
  * [1] https://support.mozilla.org/en-US/kb/address-bar-autocomplete-firefox#w_url-autocomplete ***/
    // user_pref("browser.urlbar.autoFill", false);
-/* 0850e: disable location bar one-off searches [FF51+]
- * [1] https://www.ghacks.net/2016/08/09/firefox-one-off-searches-address-bar/ ***/
-   // user_pref("browser.urlbar.oneOffSearches", false);
 /* 0860: disable search and form history
  * [SETUP-WEB] Be aware thet autocomplete form data can be read by third parties, see [1] [2]
  * [NOTE] We also clear formdata on exit (see 2803)
@@ -635,6 +644,8 @@ user_pref("browser.shell.shortcutFavicons", false);
 /*** [SECTION 1200]: HTTPS (SSL/TLS / OCSP / CERTS / HPKP / CIPHERS)
    Your cipher and other settings can be used in server side fingerprinting
    [TEST] https://www.ssllabs.com/ssltest/viewMyClient.html
+   [TEST] https://browserleaks.com/ssl
+   [TEST] https://ja3er.com/
    [1] https://www.securityartwork.es/2017/02/02/tls-client-fingerprinting-with-bro/
 ***/
 user_pref("_user.js.parrot", "1200 syntax error: the parrot's a stiff!");
@@ -651,10 +662,10 @@ user_pref("_user.js.parrot", "1200 syntax error: the parrot's a stiff!");
 user_pref("security.ssl.require_safe_negotiation", true);
 /* 1202: control TLS versions with min and max
  * 1=TLS 1.0, 2=TLS 1.1, 3=TLS 1.2, 4=TLS 1.3
+ * [STATS] Firefox telemetry (June 2020) shows only 0.16% of SSL handshakes use 1.0 or 1.1
  * [WARNING] Leave these at default, otherwise you alter your TLS fingerprint.
- * Firefox telemetry (April 2020) shows only 0.25% of TLS web traffic uses 1.0 or 1.1
  * [1] https://www.ssllabs.com/ssl-pulse/ ***/
-   // user_pref("security.tls.version.min", 3);
+   // user_pref("security.tls.version.min", 3); // [DEFAULT: 3 FF78+]
    // user_pref("security.tls.version.max", 4);
 /* 1203: enforce TLS 1.0 and 1.1 downgrades as session only */
 user_pref("security.tls.version.enable-deprecated", false);
@@ -713,7 +724,7 @@ user_pref("security.pki.sha1_enforcement_level", 1);
  * 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://trac.torproject.org/projects/tor/ticket/21686 ***/
+ * [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/21686 ***/
 user_pref("security.family_safety.mode", 0);
 /* 1222: disable intermediate certificate caching (fingerprinting attack vector) [FF41+] [RESTART]
  * [NOTE] This affects login/cert/key dbs. The effect is all credentials are session-only.
@@ -724,41 +735,55 @@ user_pref("security.family_safety.mode", 0);
  * PKP (Public Key Pinning) 0=disabled 1=allow user MiTM (such as your antivirus), 2=strict
  * [SETUP-WEB] If you rely on an AV (antivirus) to protect your web browsing
  * by inspecting ALL your web traffic, then leave at current default=1
- * [1] https://trac.torproject.org/projects/tor/ticket/16206 ***/
+ * [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/16206 ***/
 user_pref("security.cert_pinning.enforcement_level", 2);
 
 /** MIXED CONTENT ***/
 /* 1240: disable insecure active content on https pages
- * [1] https://trac.torproject.org/projects/tor/ticket/21323 ***/
+ * [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/21323 ***/
 user_pref("security.mixed_content.block_active_content", true); // [DEFAULT: true]
 /* 1241: disable insecure passive content (such as images) on https pages [SETUP-WEB] ***/
 user_pref("security.mixed_content.block_display_content", true);
 /* 1243: block unencrypted requests from Flash on encrypted pages to mitigate MitM attacks [FF59+]
  * [1] https://bugzilla.mozilla.org/1190623 ***/
 user_pref("security.mixed_content.block_object_subrequest", true);
+/* 1244: enable https-only-mode [FF76+]
+ * [NOTE] This is experimental
+ * [1] https://bugzilla.mozilla.org/1613063 */
+   // user_pref("dom.security.https_only_mode", true); // [FF76+]
+   // user_pref("dom.security.https_only_mode.upgrade_local", true); // [FF77+]
 
-/** CIPHERS [WARNING: do not meddle with your cipher suite: see the section 1200 intro] ***/
+/** CIPHERS [WARNING: do not meddle with your cipher suite: see the section 1200 intro]
-/* 1261: disable 3DES (effective key size < 128)
+ * These are all the ciphers still using SHA-1 and CBC which are weaker than the available alternatives. (see "Cipher Suites" in [1])
+ * Additionally some have other weaknesses like key sizes of 128 (or lower) [2] and/or no Perfect Forward Secrecy [3].
+ * [1] https://browserleaks.com/ssl
+ * [2] https://en.wikipedia.org/wiki/Key_size
+ * [3] https://en.wikipedia.org/wiki/Forward_secrecy
+ ***/
+/* 1261: disable 3DES (effective key size < 128 and no PFS)
  * [1] https://en.wikipedia.org/wiki/3des#Security
  * [2] https://en.wikipedia.org/wiki/Meet-in-the-middle_attack
  * [3] https://www-archive.mozilla.org/projects/security/pki/nss/ssl/fips-ssl-ciphersuites.html ***/
    // user_pref("security.ssl3.rsa_des_ede3_sha", false);
-/* 1262: disable 128 bits ***/
-   // user_pref("security.ssl3.ecdhe_ecdsa_aes_128_sha", false);
-   // user_pref("security.ssl3.ecdhe_rsa_aes_128_sha", false);
 /* 1263: disable DHE (Diffie-Hellman Key Exchange)
  * [1] https://www.eff.org/deeplinks/2015/10/how-to-protect-yourself-from-nsa-attacks-1024-bit-DH ***/
-   // user_pref("security.ssl3.dhe_rsa_aes_128_sha", false);
+   // user_pref("security.ssl3.dhe_rsa_aes_128_sha", false); // [DEFAULT: false FF78+]
-   // user_pref("security.ssl3.dhe_rsa_aes_256_sha", false);
+   // user_pref("security.ssl3.dhe_rsa_aes_256_sha", false); // [DEFAULT: false FF78+]
-/* 1264: disable the remaining non-modern cipher suites as of FF52 ***/
+/* 1264: disable the remaining non-modern cipher suites as of FF78 (in order of preferred by FF) ***/
-   // user_pref("security.ssl3.rsa_aes_128_sha", false);
+   // user_pref("security.ssl3.ecdhe_ecdsa_aes_256_sha", false);
-   // user_pref("security.ssl3.rsa_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_sha", false); // no PFS
+   // user_pref("security.ssl3.rsa_aes_256_sha", false); // no PFS
 
 /** UI (User Interface) ***/
 /* 1270: display warning on the padlock for "broken security" (if 1201 is false)
  * Bug: warning padlock not indicated for subresources on a secure page! [2]
+ * [STATS] SSL Labs (June 2020) reports 98.8% of sites have secure renegotiation [3]
  * [1] https://wiki.mozilla.org/Security:Renegotiation
- * [2] https://bugzilla.mozilla.org/1353705 ***/
+ * [2] https://bugzilla.mozilla.org/1353705
+ * [3] https://www.ssllabs.com/ssl-pulse/ ***/
 user_pref("security.ssl.treat_unsafe_negotiation_as_broken", true);
 /* 1271: control "Add Security Exception" dialog on SSL warnings
  * 0=do neither 1=pre-populate url 2=pre-populate url + pre-fetch cert (default)
@@ -777,12 +802,12 @@ user_pref("security.insecure_connection_text.enabled", true); // [FF60+]
 user_pref("_user.js.parrot", "1400 syntax error: the parrot's bereft of life!");
 /* 1401: disable websites choosing fonts (0=block, 1=allow)
  * This can limit most (but not all) JS font enumeration which is a high entropy fingerprinting vector
- * [SETUP-WEB] Disabling fonts can uglify the web a fair bit.
+ * [SETUP-WEB] Can break some PDFs (missing text). Limiting to default fonts can "uglify" the web
  * [SETTING] General>Language and Appearance>Fonts & Colors>Advanced>Allow pages to choose... ***/
 user_pref("browser.display.use_document_fonts", 0);
 /* 1403: disable icon fonts (glyphs) and local fallback rendering
  * [1] https://bugzilla.mozilla.org/789788
- * [2] https://trac.torproject.org/projects/tor/ticket/8455 ***/
+ * [2] https://gitlab.torproject.org/legacy/trac/-/issues/8455 ***/
    // user_pref("gfx.downloadable_fonts.enabled", false); // [FF41+]
    // user_pref("gfx.downloadable_fonts.fallback_delay", -1);
 /* 1404: disable rendering of SVG OpenType fonts
@@ -934,8 +959,11 @@ user_pref("media.getusermedia.audiocapture.enabled", false);
  * [NOTE] You can set exceptions under site permissions
  * [SETTING] Privacy & Security>Permissions>Autoplay>Settings>Default for all websites ***/
    // user_pref("media.autoplay.default", 5);
-/* 2031: disable autoplay of HTML5 media if you interacted with the site [FF66+] ***/
+/* 2031: disable autoplay of HTML5 media if you interacted with the site [FF78+]
-user_pref("media.autoplay.enabled.user-gestures-needed", false);
+ * 0=sticky (default), 1=transient, 2=user
+ * [NOTE] If you have trouble with some video sites, then add an exception (see 2030)
+ * [1] https://html.spec.whatwg.org/multipage/interaction.html#sticky-activation ***/
+user_pref("media.autoplay.blocking_policy", 2);
 
 /*** [SECTION 2200]: WINDOW MEDDLING & LEAKS / POPUPS ***/
 user_pref("_user.js.parrot", "2200 syntax error: the parrot's 'istory!");
@@ -955,7 +983,7 @@ user_pref("dom.disable_window_move_resize", true);
  * This stops malicious window sizes and some screen resolution leaks.
  * You can still right-click a link and open in a new window.
  * [TEST] https://ghacksuserjs.github.io/TorZillaPrint/TorZillaPrint.html#screen
- * [1] https://trac.torproject.org/projects/tor/ticket/9881 ***/
+ * [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/9881 ***/
 user_pref("browser.link.open_newwindow", 3);
 user_pref("browser.link.open_newwindow.restriction", 0);
 /* 2204: disable Fullscreen API (requires user interaction) to prevent screen-resolution leaks
@@ -1071,7 +1099,7 @@ user_pref("javascript.options.wasm", false);
    // user_pref("dom.IntersectionObserver.enabled", false);
 /* 2429: enable (limited but sufficient) window.opener protection [FF65+]
  * Makes rel=noopener implicit for target=_blank in anchor and area elements when no rel attribute is set ***/
-user_pref("dom.targetBlankNoOpener.enabled", true);
+user_pref("dom.targetBlankNoOpener.enabled", true); // [DEFAULT: true FF78+]
 
 /*** [SECTION 2500]: HARDWARE FINGERPRINTING ***/
 user_pref("_user.js.parrot", "2500 syntax error: the parrot's shuffled off 'is mortal coil!");
@@ -1127,10 +1155,6 @@ user_pref("browser.helperApps.deleteTempFileOnExit", true);
 /* 2604: disable page thumbnail collection
  * look in profile/thumbnails directory - you may want to clean that out ***/
 user_pref("browser.pagethumbnails.capturing_disabled", true); // [HIDDEN PREF]
-/* 2605: block web content in file processes [FF55+]
- * [SETUP-WEB] You may want to disable this for corporate or developer environments
- * [1] https://bugzilla.mozilla.org/1343184 ***/
-user_pref("browser.tabs.remote.allowLinkedWebInFileUriProcess", false);
 /* 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", "");
@@ -1139,8 +1163,8 @@ user_pref("browser.uitour.url", "");
  * [1] https://github.com/pyllyukko/user.js/issues/179#issuecomment-246468676 ***/
 user_pref("devtools.chrome.enabled", false);
 /* 2608: disable remote debugging
- * [1] https://trac.torproject.org/projects/tor/ticket/16222 ***/
+ * [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/16222 ***/
-user_pref("devtools.debugger.remote-enabled", false);
+user_pref("devtools.debugger.remote-enabled", false); // [DEFAULT: false]
 /* 2609: disable MathML (Mathematical Markup Language) [FF51+] [SETUP-HARDEN]
  * [TEST] https://ghacksuserjs.github.io/TorZillaPrint/TorZillaPrint.html#misc
  * [1] https://bugzilla.mozilla.org/1173199 ***/
@@ -1151,7 +1175,7 @@ user_pref("devtools.debugger.remote-enabled", false);
  * [1] https://bugzilla.mozilla.org/1216893 ***/
    // user_pref("svg.disabled", true);
 /* 2611: disable middle mouse click opening links from clipboard
- * [1] https://trac.torproject.org/projects/tor/ticket/10089 ***/
+ * [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/10089 ***/
 user_pref("middlemouse.contentLoadURL", false);
 /* 2614: limit HTTP redirects (this does not control redirects with HTML meta tags or JS)
  * [NOTE] A low setting of 5 or under will probably break some sites (e.g. gmail logins)
@@ -1408,12 +1432,13 @@ user_pref("privacy.firstparty.isolate", true);
       This spoof *shouldn't* affect core chrome/Firefox performance
  ** 1217238 - reduce precision of time exposed by javascript (FF55+)
  ** 1369303 - spoof/disable performance API (see 2410-deprecated, 4602, 4603) (FF56+)
- ** 1333651 & 1383495 & 1396468 - spoof Navigator API (see section 4700) (FF56+)
+ ** 1333651 & 1383495 & 1396468 - spoof User Agent & Navigator API (see section 4700) (FF56+)
-      FF56: The version number will be rounded down to the nearest multiple of 10
+      FF56: Version: rounded down to the nearest multiple of 10
-      FF57: The version number will match current ESR (1393283, 1418672, 1418162, 1511763)
+      FF57: Version: match current ESR (1393283, 1418672, 1418162, 1511763)
-      FF59: The OS will be reported as Windows, OSX, Android, or Linux (to reduce breakage) (1404608)
+      FF59: OS: Windows, OSX, Android, or Linux (to reduce breakage) (1404608)
-      FF66: The OS in HTTP Headers will be reduced to Windows or Android (1509829)
+      FF66: OS: HTTP Headers reduced to Windows or Android (1509829)
-      FF68: Reported OS versions updated to Windows 10, OS 10.14, and Adnroid 8.1 (1511434)
+      FF68: OS: updated to Windows 10, OS 10.14, and Android 8.1 (1511434)
+      FF78: OS: updated to OS 10.15 and Android 9.0 (1635011)
  ** 1369319 - disable device sensor API (see 4604) (FF56+)
  ** 1369357 - disable site specific zoom (see 4605) (FF56+)
  ** 1337161 - hide gamepads from content (see 4606) (FF56+)
@@ -1427,7 +1452,7 @@ user_pref("privacy.firstparty.isolate", true);
  ** 1354633 - limit MediaError.message to a whitelist (FF57+)
  ** 1382533 - enable fingerprinting resistance for Presentation API (FF57+)
       This blocks exposure of local IP Addresses via mDNS (Multicast DNS)
- **  967895 - enable site permission prompt before allowing canvas data extraction (FF58+)
+ **  967895 - spoof canvas and enable site permission prompt before allowing canvas data extraction (FF58+)
       FF59: Added to site permissions panel (1413780) Only prompt when triggered by user input (1376865)
  ** 1372073 - spoof/block fingerprinting in MediaDevices API (FF59+)
       Spoof: enumerate devices reports one "Internal Camera" and one "Internal Microphone" if
@@ -1440,7 +1465,7 @@ user_pref("privacy.firstparty.isolate", true);
       FF60: Fix keydown/keyup events (1438795)
  ** 1337157 - disable WebGL debug renderer info (see 4613) (FF60+)
  ** 1459089 - disable OS locale in HTTP Accept-Language headers (ANDROID) (FF62+)
- ** 1479239 - return "no-preference" with prefers-reduced-motion (FF63+)
+ ** 1479239 - return "no-preference" with prefers-reduced-motion (see 4617) (FF63+)
  ** 1363508 - spoof/suppress Pointer Events (see 4614) (FF64+)
       FF65: pointerEvent.pointerid (1492766)
  ** 1485266 - disable exposure of system colors to CSS or canvas (see 4615) (FF67+)
@@ -1450,6 +1475,7 @@ user_pref("privacy.firstparty.isolate", true);
  ** 1564422 - spoof audioContext outputLatency (FF70+)
  ** 1595823 - spoof audioContext sampleRate (FF72+)
  ** 1607316 - spoof pointer as coarse and hover as none (ANDROID) (FF74+)
+ ** 1621433 - randomize canvas (previously FF58+ returned an all-white canvas) (FF78+)
 ***/
 user_pref("_user.js.parrot", "4500 syntax error: the parrot's popped 'is clogs");
 /* 4501: enable privacy.resistFingerprinting [FF41+]
@@ -1484,6 +1510,9 @@ user_pref("privacy.resistFingerprinting.letterboxing", true); // [HIDDEN PREF]
  * When default true (FF62+) this no longer masks the RFP chrome resizing activity
  * [1] https://bugzilla.mozilla.org/1448423 ***/
 user_pref("browser.startup.blankWindow", false);
+/* 4520: disable chrome animations [FF77+] [RESTART]
+ * [NOTE] pref added in FF63, but applied to chrome in FF77. RFP spoofs this for web content ***/
+user_pref("ui.prefersReducedMotion", 1); // [HIDDEN PREF]
 
 /*** [SECTION 4600]: RFP ALTERNATIVES
    * non-RFP users:
@@ -1502,8 +1531,8 @@ user_pref("_user.js.parrot", "4600 syntax error: the parrot's crossed the Jordan
 // 4601: [2514] spoof (or limit?) number of CPU cores [FF48+]
    // [NOTE] *may* affect core chrome/Firefox performance, will affect content.
    // [1] https://bugzilla.mozilla.org/1008453
-   // [2] https://trac.torproject.org/projects/tor/ticket/21675
+   // [2] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/21675
-   // [3] https://trac.torproject.org/projects/tor/ticket/22127
+   // [3] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/22127
    // [4] https://html.spec.whatwg.org/multipage/workers.html#navigator.hardwareconcurrency
    // user_pref("dom.maxHardwareConcurrency", 2);
 // * * * /
@@ -1515,7 +1544,7 @@ user_pref("dom.enable_resource_timing", false);
 user_pref("dom.enable_performance", false);
 // 4604: [2512] disable device sensor API
    // Optional protection depending on your device
-   // [1] https://trac.torproject.org/projects/tor/ticket/15758
+   // [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/15758
    // [2] https://blog.lukaszolejnik.com/stealing-sensitive-browser-data-with-the-w3c-ambient-light-sensor-api/
    // [3] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1357733,1292751
    // user_pref("device.sensors.enabled", false);
@@ -1526,7 +1555,7 @@ user_pref("dom.enable_performance", false);
 user_pref("browser.zoom.siteSpecific", false);
 // 4606: [2501] disable gamepad API - USB device ID enumeration
    // Optional protection depending on your connected devices
-   // [1] https://trac.torproject.org/projects/tor/ticket/13023
+   // [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/13023
    // user_pref("dom.gamepad.enabled", false);
 // 4607: [2503] disable giving away network info [FF31+]
    // e.g. bluetooth, cellular, ethernet, wifi, wimax, other, mixed, unknown, none
@@ -1542,7 +1571,7 @@ user_pref("media.webspeech.synth.enabled", false);
 // * * * /
 // FF57+
 // 4610: [2506] disable video statistics - JS performance fingerprinting [FF25+]
-   // [1] https://trac.torproject.org/projects/tor/ticket/15757
+   // [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/15757
    // [2] https://bugzilla.mozilla.org/654550
 user_pref("media.video_stats.enabled", false);
 // 4611: [2509] disable touch events
@@ -1550,7 +1579,7 @@ user_pref("media.video_stats.enabled", false);
    // 0=disabled, 1=enabled, 2=autodetect
    // Optional protection depending on your device
    // [1] https://developer.mozilla.org/docs/Web/API/Touch_events
-   // [2] https://trac.torproject.org/projects/tor/ticket/10286
+   // [2] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/10286
    // user_pref("dom.w3c_touch_events.enabled", 0);
 // * * * /
 // FF59+
@@ -1579,6 +1608,9 @@ user_pref("ui.use_standins_for_native_colors", true);
 // 4616: enforce prefers-color-scheme as light [FF67+]
    // 0=light, 1=dark : This overrides your OS value
 user_pref("ui.systemUsesDarkTheme", 0); // [HIDDEN PREF]
+// 4617: enforce prefers-reduced-motion as no-preference [FF63+] [RESTART]
+   // 0=no-preference, 1=reduce
+user_pref("ui.prefersReducedMotion", 0); // [HIDDEN PREF]
 // * * * /
 // ***/
 
@@ -1587,8 +1619,8 @@ user_pref("ui.systemUsesDarkTheme", 0); // [HIDDEN PREF]
      to use RFP (4500) or an extension, in which case they become POINTLESS.
      (a) Many of the components that make up your UA can be derived by other means.
          And when those values differ, you provide more bits and raise entropy.
-         Examples of leaks include navigator objects, date locale/formats, iframes,
+         Examples of leaks include workers, navigator objects, date locale/formats,
-         headers, tcp/ip attributes, feature detection, and **many** more.
+         iframes, headers, tcp/ip attributes, feature detection, and **many** more.
      ALL values below intentionally left blank - use RFP, or get a vetted, tested
          extension and mimic RFP values to *lower* entropy, or randomize to *raise* it
 ***/
@@ -1625,7 +1657,6 @@ user_pref("_user.js.parrot", "5000 syntax error: this is an ex-parrot!");
    // user_pref("full-screen-api.warning.timeout", 0);
 /* APPEARANCE ***/
    // user_pref("browser.download.autohideButton", false); // [FF57+]
-   // user_pref("toolkit.cosmeticAnimations.enabled", false); // [FF55+]
    // user_pref("toolkit.legacyUserProfileCustomizations.stylesheets", true); // [FF68+] allow userChrome/userContent
 /* CONTENT BEHAVIOR ***/
    // user_pref("accessibility.typeaheadfind", true); // enable "Find As You Type"
@@ -1716,6 +1747,31 @@ user_pref("privacy.userContext.longPressBehavior", 2);
    // [-] https://bugzilla.mozilla.org/1477756
 user_pref("webgl.disable-extensions", true);
 // * * * /
+// FF76
+// 0401: sanitize blocklist url
+   // [2] https://trac.torproject.org/projects/tor/ticket/16931
+   // [-] https://bugzilla.mozilla.org/1618188
+user_pref("extensions.blocklist.url", "https://blocklists.settings.services.mozilla.com/v1/blocklist/3/%APP_ID%/%APP_VERSION%/");
+// * * * /
+// FF77
+// 0850e: disable location bar one-off searches [FF51+]
+   // [1] https://www.ghacks.net/2016/08/09/firefox-one-off-searches-address-bar/
+   // [-] https://bugzilla.mozilla.org/1628926
+   // user_pref("browser.urlbar.oneOffSearches", false);
+// 2605: block web content in file processes [FF55+]
+   // [SETUP-WEB] You may want to disable this for corporate or developer environments
+   // [1] https://bugzilla.mozilla.org/1343184
+   // [-] https://bugzilla.mozilla.org/1603007
+user_pref("browser.tabs.remote.allowLinkedWebInFileUriProcess", false);
+// * * * /
+// FF78
+// 2031: disable autoplay of HTML5 media if you interacted with the site [FF66+] - replaced by 'media.autoplay.blocking_policy'
+   // [-] https://bugzilla.mozilla.org/1509933
+user_pref("media.autoplay.enabled.user-gestures-needed", false);
+// 5000's: disable chrome animations - replaced FF77+ by 'ui.prefersReducedMotion' (4520)
+   // [-] https://bugzilla.mozilla.org/1640501
+   // user_pref("toolkit.cosmeticAnimations.enabled", false); // [FF55+]
+// * * * /
 // ***/
 
 /* END: internal custom pref to test for syntax errors ***/