Update 'user.js'

✅ Synced with Desktop version
✅ Synced all the buildIDs with Tor's ones
✅ Sanitized app.releaseNotesURL
⛔️ Disabled Firefox Developer Tools
⛔️ Disabled search suggestions prompt "blue" bar
⛔️ Disabled ping to Mozilla for Man-in-the-Middle detection
⛔️ Disabled deprecated TLS versions
⛔️ Disabled all the WebAssembly remaining prefs
⛔️ Disabled more telemetry | FF71+
ℹ️ Remove all the timeout prefs 
ℹ️ Reordered and renamed some prefs with better criteria
ℹ️ Moved some preferences from FF70+ into deprecated section (keeping them active for ESR68.x)

user.js

@@ -146,7 +146,6 @@ user_pref("services.sync.prefs.sync.browser.formfill.enable", false); // [DESKTO
 user_pref("services.sync.prefs.sync.browser.link.open_newwindow", false); // [DESKTOP]
 user_pref("services.sync.prefs.sync.browser.newtabpage.enabled", false); // [DESKTOP]
 user_pref("services.sync.prefs.sync.browser.newtabpage.pinned", false); // [DESKTOP]
-user_pref("services.sync.prefs.sync.browser.offline-apps.notify", false); // [DESKTOP]
 user_pref("services.sync.prefs.sync.browser.search.update", false); // [DESKTOP]
 user_pref("services.sync.prefs.sync.browser.startup.homepage", false); // [DESKTOP]
 user_pref("services.sync.prefs.sync.browser.startup.page", false); // [DESKTOP]
@@ -242,8 +241,6 @@ user_pref("services.sync.prefs.sync.privacy.fuzzyfox.clockgrainus", false); // [
 user_pref("services.sync.prefs.sync.privacy.fuzzyfox.enabled", false); // [DESKTOP]
 user_pref("services.sync.prefs.sync.signon.rememberSignons", false); // [DESKTOP]
 user_pref("services.sync.serverURL", ""); // [DESKTOP]
-user_pref("services.sync.fxa.privacyURL", ""); // [DESKTOP]
-user_pref("services.sync.fxa.termsURL", ""); // [DESKTOP]
 user_pref("services.sync.lastversion", ""); // [DESKTOP]
 user_pref("sync.serverURL", ""); // [DEPRECATED] // [DESKTOP]
 user_pref("sync.jpake.serverURL", ""); // [DEPRECATED] // [DESKTOP]
@@ -259,7 +256,6 @@ user_pref("services.sync.prefs.sync.extensions.activeThemeID", false);
 // https://support.mozilla.org/en-US/kb/how-stop-firefox-making-automatic-connections#w_auto-update-checking
 user_pref("browser.search.update", false);
 user_pref("browser.search.update.log", false);
-// user_pref("browser.search.update.interval", 0);
 // -------------------------------------
 // Pref : Tell the search service that we don't really expose the "current engine"
 user_pref("browser.search.noCurrentEngine", true); // [DEFAULT: true] // [FENNEC]
@@ -304,6 +300,7 @@ user_pref("toolkit.telemetry.ecosystemtelemetry.enabled", false); // [DESKTOP]
 user_pref("security.protectionspopup.recordEventTelemetry", false); // [DESKTOP]
 user_pref("toolkit.telemetry.geckoview.streaming", false);
 user_pref("toolkit.telemetry.isGeckoViewMode", false);
+user_pref("toolkit.telemetry.testing.overrideProductsCheck", false);
 // -------------------------------------
 // Pref : Disable Telemetry Coverage
 // https://blog.mozilla.org/data/2018/08/20/effectively-measuring-search-in-firefox/
@@ -370,7 +367,6 @@ user_pref("lightweightThemes.persisted.footerURL", false); // [DESKTOP]
 user_pref("lightweightThemes.recommendedThemes", ""); // [DESKTOP]
 // -------------------------------------
 // Pref : Disable Studies and SHIELD
-// [NOTE] This pref has no effect when Health Reports are disabled
 user_pref("app.shield.optoutstudies.enabled", false); // [DESKTOP]
 // -------------------------------------
 // Pref : Disable backlogged Crash Reports
@@ -389,10 +385,13 @@ user_pref("extensions.getAddons.discovery.api_url", ""); // [DESKTOP]
 user_pref("extensions.recommendations.privacyPolicyUrl", "");
 user_pref("extensions.recommendations.themeRecommendationUrl", "");
 // -------------------------------------
-// Pref : Disable report extension option in about:addons
+// Pref : Disable extension's report option in about:addons
 user_pref("extensions.htmlaboutaddons.enabled", false);
 user_pref("extensions.abuseReport.enabled", false);
 user_pref("extensions.abuseReport.url", "");
+user_pref("extensions.abuseReport.amoDetailsURL", "");
+user_pref("extensions.abuseReport.amWebAPI.enabled", false);
+user_pref("extensions.abuseReport.openDialog", false);
 // -------------------------------------
 // Pref : Disable Firefox Hello metrics collection
 // https://groups.google.com/d/topic/mozilla.dev.platform/nyVkCx-_sFw/discussion
@@ -410,15 +409,21 @@ user_pref("browser.contentblocking.report.manage_devices.url", ""); // [DESKTOP]
 user_pref("browser.contentblocking.report.monitor.enabled", false); // [DESKTOP]
 user_pref("browser.contentblocking.report.monitor.how_it_works.url", ""); // [DESKTOP]
 user_pref("browser.contentblocking.report.monitor.sign_in_url", ""); // [DESKTOP]
+user_pref("browser.contentblocking.report.monitor.url", ""); // [DESKTOP]
 user_pref("browser.contentblocking.report.proxy.enabled", false); // [DESKTOP]
 user_pref("browser.contentblocking.report.proxy_extension.url", ""); // [DESKTOP]
 user_pref("browser.contentblocking.report.social.url", ""); // [DESKTOP]
 user_pref("browser.contentblocking.report.tracker.url", ""); // [DESKTOP]
+user_pref("browser.contentblocking.allowlist.annotations.enabled", false); // [FENNEC]
+user_pref("browser.contentblocking.allowlist.storage.enabled", false); // [FENNEC]
 // -------------------------------------
 // Pref : Disable send content blocking log to about:protections
 // https://bugzilla.mozilla.org/show_bug.cgi?id=1549832
 user_pref("browser.contentblocking.database.enabled", false);
 // -------------------------------------
+// Pref : Disable celebrating milestone toast when certain numbers of trackers are blocked
+user_pref("browser.contentblocking.cfr-milestone.enabled", false); // [DESKTOP]
+// -------------------------------------
 // Pref : Onboarding tour disable because of included telemetry
 // [NOTE] This setting is just in case it comeback
 user_pref("browser.onboarding.notification.finished", true); // [DESKTOP] // [DEPRECATED]
@@ -446,8 +451,8 @@ user_pref("extensions.screenshots.upload-disabled", true); // [DESKTOP]
 // https://support.mozilla.org/en-US/kb/how-do-i-use-firefox-spell-checker
 user_pref("layout.spellcheckDefault", 0); // [DESKTOP]
 // -------------------------------------
-// Pref : Disable Firefox internal page warnings
+// Pref : Enable Firefox internal pages and disable the related warnings
-user_pref("network.warnOnAboutNetworking", false);
+user_pref("general.aboutConfig.enable", true);
 user_pref("general.warnOnAboutConfig", false);
 user_pref("browser.aboutConfig.showWarning", false);  // [DESKTOP]
 // -------------------------------------
@@ -469,6 +474,10 @@ user_pref("full-screen-api.warning.timeout", 0);
 // https://git.sny.no/gecko/commit/?id=5701a142f2a5e89b1b716e0edec0f18d5e513678
 user_pref("media.webvtt.debug.logging", false);
 user_pref("media.webvtt.testing.events", false);
+// -------------------------------------
+// Pref : Disable Firefox Developer Tools
+// https://developer.mozilla.org/en-US/docs/Tools
+user_pref("devtools.enabled", false);
 //
 // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
 // Section : IJWY To Shut Up   
@@ -481,7 +490,7 @@ user_pref("app.channelURL", ""); // [FENNEC]
 user_pref("app.creditsURL", ""); // [FENNEC]
 user_pref("app.faqURL", ""); // [FENNEC]
 user_pref("app.privacyURL", ""); // [FENNEC]
-user_pref("app.releaseNotesURL", "");
+user_pref("app.releaseNotesURL", "https://www.mozilla.org/en-US/firefox/%VERSION%/releasenotes/?utm_source=firefox-browser&utm_medium=firefox-browser&utm_campaign=whatsnew"); // [URL SANITIZED]
 user_pref("app.support.baseURL", "");
 user_pref("app.supportURL", ""); // [FENNEC]
 user_pref("app.vendorURL", ""); // [DESKTOP]
@@ -502,6 +511,7 @@ user_pref("extensions.getAddons.themes.browseURL", ""); // [DESKTOP]
 user_pref("security.content.signature.root_hash", "");
 user_pref("identity.mobilepromo.android", ""); // [DESKTOP]
 user_pref("identity.mobilepromo.ios", ""); // [DESKTOP]
+user_pref("identity.sendtabpromo.url", ""); // [DESKTOP]
 user_pref("toolkit.datacollection.infoURL", ""); // [DESKTOP]
 user_pref("dom.keyboardevent.keypress.hack.dispatch_non_printable_keys", "");
 user_pref("dom.keyboardevent.keypress.hack.use_legacy_keycode_and_charcode", "");
@@ -538,7 +548,6 @@ user_pref("browser.translation.ui.show", false); // [DESKTOP]
 // -------------------------------------
 // Pref : Disable useragent updates and site specific overrides
 user_pref("general.useragent.updates.enabled", false); // [FENNEC]
-user_pref("general.useragent.site_specific_overrides", false); // [DESKTOP]
 user_pref("general.useragent.updates.url", ""); // [FENNEC]
 // -------------------------------------
 // Pref : Decrease vendor useragent info leakage to Mozilla
@@ -555,6 +564,10 @@ user_pref("mailnews.mx_service_url", ""); // [DESKTOP]
 user_pref("browser.newtabpage.activity-stream.default.sites", ""); // [DESKTOP]
 user_pref("browser.newtabpage.activity-stream.improvesearch.topSiteSearchShortcuts.havePinned", ""); // [DESKTOP]
 user_pref("browser.newtabpage.activity-stream.improvesearch.topSiteSearchShortcuts.searchEngines", ""); // [DESKTOP]
+// -------------------------------------
+// Pref : Disable report browser errors in Nightly to Mozilla
+// https://bugzilla.mozilla.org/show_bug.cgi?id=1426482
+user_pref("browser.chrome.errorReporter.infoURL", "");
 //
 // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
 // Section : Miscellaneous
@@ -671,16 +684,12 @@ user_pref("gfx.font_rendering.opentype_svg.enabled", false);
 // Pref : Ensure you have a security delay when installing add-ons (milliseconds)
 user_pref("security.dialog_enable_delay", 700);
 // -------------------------------------
-// Pref : Disable WebIDE to prevent remote debugging and ADB extension download
+// Pref : Disable ADB extension download
 // https://developer.mozilla.org/docs/Tools/WebIDE
 // https://trac.torproject.org/projects/tor/ticket/16222
 user_pref("devtools.debugger.remote-enabled", false);
-user_pref("devtools.webide.enabled", false); // [DESKTOP]
-user_pref("devtools.webide.autoinstallADBExtension", false); // [DESKTOP]
 user_pref("devtools.remote.adb.extensionURL", ""); // [DESKTOP]
 user_pref("devtools.remote.adb.extensionID", ""); // [DESKTOP]
-user_pref("devtools.webide.adaptersAddonURL", ""); // [DESKTOP]
-user_pref("devtools.webide.templatesURL", ""); // [DESKTOP]
 // -------------------------------------
 // Pref : Force local debugging
 // https://developer.mozilla.org/en-US/docs/Tools/Remote_Debugging/Debugging_Firefox_Desktop
@@ -724,12 +733,14 @@ user_pref("webchannel.allowObject.urlWhitelist", "");
 // [NOTE] May cause black on black for elements with undefined colors
 // https://bugzilla.mozilla.org/buglist.cgi?bug_id=232227,1330876
 // user_pref("ui.use_native_colors", true);
+// -------------------------------------
 // Pref : Discourage downloading to desktop (0=desktop 1=downloads 2=last used)
 user_pref("browser.download.folderList", 2);
 // -------------------------------------
-// Pref : Enforce user interaction for security by always asking the user where to download
+// Pref : Enforce user interaction, for security, by always asking the user where to download and then forget
-// [FENNEC] Fix for images not downloading
+// [FENNEC] Fix for downloading issues
-user_pref("browser.download.useDownloadDir", true);
+// user_pref("browser.download.useDownloadDir", false);
+user_pref("browser.download.lastDir", ""); // [DESKTOP]
 // -------------------------------------
 // Pref : Disable adding downloads to the system's "recent documents" list
 user_pref("browser.download.manager.addToRecentDocs", false);
@@ -750,7 +761,8 @@ user_pref("extensions.autoDisableScopes", 15); // [DEFAULT: 15]
 // Pref : Enable warning when websites try to install add-ons
 user_pref("xpinstall.whitelist.required", true); // [DEFAULT: true]
 // -------------------------------------
-// Pref : Enable CSP (Content Security Policy)
+// Pref : Enforce CSP (Content Security Policy)
+// [WARNING] CSP is a very important and widespread security feature. Don't disable it!
 // https://developer.mozilla.org/docs/Web/HTTP/CSP
 user_pref("security.csp.enable", true); // [DEFAULT: true]
 // -------------------------------------
@@ -938,6 +950,12 @@ user_pref("javascript.options.native_regexp", false);
 // https://en.wikipedia.org/wiki/WebAssembly
 // https://trac.torproject.org/projects/tor/ticket/21549
 user_pref("javascript.options.wasm", false);
+user_pref("javascript.options.wasm_baselinejit", false);
+user_pref("javascript.options.wasm_cranelift", false);
+user_pref("javascript.options.wasm_gc", false);
+user_pref("javascript.options.wasm_ionjit", false);
+user_pref("javascript.options.wasm_trustedprincipals", false);
+user_pref("javascript.options.wasm_verbose", false);
 // -------------------------------------
 // Pref : Disable Intersection Observer API
 // Almost a year to complete, three versions late to stable (as default false), number #1 cause of crashes in nightly numerous times, and is (primarily) an ad network API for "ad viewability checks" down to a pixel level
@@ -959,8 +977,8 @@ user_pref("dom.targetBlankNoOpener.enabled", true); // [DEFAULT: false]
 // Value taken from Tor Browser for Android
 // https://bugzilla.mozilla.org/show_bug.cgi?id=583181
 user_pref("browser.startup.homepage_override.buildID", "20100101");
-user_pref("extensions.lastAppBuildId", "20190402010101");
+user_pref("extensions.lastAppBuildId", "20190402030101");
-user_pref("media.gmp-manager.buildID", "20190402010101");
+user_pref("media.gmp-manager.buildID", "20190402030101");
 user_pref("browser.sessionstore.upgradeBackup.latestBuildID", ""); // [DESKTOP]
 user_pref("general.buildID.override", "20100101");
 // -------------------------------------
@@ -1068,7 +1086,9 @@ user_pref("browser.sessionhistory.max_entries", 20); // [DEFAULT: 50]
 user_pref("layout.css.visited_links_enabled", false);
 // -------------------------------------
 // Pref : Disable search suggestions in the search bar
-user_pref("browser.search.suggest.enabled", false); // [DESKTOP]
+user_pref("browser.search.suggest.enabled", false);
+user_pref("browser.search.suggest.enabled.private", false);
+user_pref("browser.search.suggest.prompted", true); // [FENNEC]
 // -------------------------------------
 // Pref : Disable "Show search suggestions in location bar results"
 user_pref("browser.urlbar.suggest.searches", false); // [DESKTOP]
@@ -1218,6 +1238,14 @@ user_pref("toolkit.startup.max_resumed_crashes", -1); // [DESKTOP]
 // Pref : Force Encrypted Server Name Indication (eSNI) for TLS 1.3 if TRR/DoH is enabled
 // [NOTE] I don't encourage DoH (but it is a useful and valid mechanism for those who need it)
 user_pref("network.security.esni.enabled", true);
+// -------------------------------------
+// Pref : Disable ping to Mozilla for Man-in-the-Middle detection
+// https://blog.torproject.org/new-release-tor-browser-901
+user_pref("security.certerrors.mitm.priming.enabled", false); // [DESKTOP]
+user_pref("security.certerrors.mitm.priming.endpoint", ""); // [DESKTOP]
+user_pref("security.pki.mitm_canary_issuer", "");
+user_pref("security.pki.mitm_canary_issuer.enabled", false);
+user_pref("security.pki.mitm_detected", false);
 //
 // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
 // Section : Block Implicit Outbound
@@ -1230,7 +1258,7 @@ user_pref("network.prefetch-next", false);
 // Pref : Disable DNS prefetching
 // https://developer.mozilla.org/en-US/docs/Web/HTTP/Controlling_DNS_prefetching
 user_pref("network.dns.disablePrefetch", true);
-user_pref("network.dns.disablePrefetchFromHTTPS", true); // [HIDDEN PREF]
+user_pref("network.dns.disablePrefetchFromHTTPS", true); // [HIDDEN PREF ESR] [DEFAULT: true]
 // -------------------------------------
 // Pref : Disable pinging URIs specified in HTML <a> ping= attributes
 user_pref("browser.send_pings", false);
@@ -1315,19 +1343,19 @@ user_pref("network.negotiate-auth.allow-insecure-ntlm-v1", false); // [DESKTOP]
 // Section : HTTPS (SSL/TLS / OCSP / Certs / HPKP / Ciphers)
 // >>>>>>>>>>>>>>>>>>>>
 // Pref : Disable old SSL/TLS "insecure" renegotiation (vulnerable to a MiTM attack)
-// [SETUP-WEB] <2% of secure sites do NOT support the newer "secure" renegotiation
 // https://wiki.mozilla.org/Security:Renegotiation
-// https://www.ssllabs.com/ssl-pulse/
 user_pref("security.ssl.require_safe_negotiation", true);
 // -------------------------------------
 // Pref : Control TLS versions with min and max
 // 1=TLS 1.0, 2=TLS 1.1, 3=TLS 1.2, 4=TLS 1.3
 // [NOTE] Jul-2017: Telemetry indicates approx 2% of TLS web traffic uses 1.0 or 1.1
-// https://www.ssl.com/how-to/turn-off-ssl-3-0-and-tls-1-0-in-your-browser/
+// https://www.ssllabs.com/ssl-pulse/
-// archived: https://archive.is/hY2Mm
 user_pref("security.tls.version.min", 3);
 user_pref("security.tls.version.max", 4);
 // -------------------------------------
+// Pref : Disable deprecated TLS versions
+user_pref("security.tls.version.enable-deprecated", false);
+// -------------------------------------
 // Pref : Disable SSL Error Reporting
 // https://firefox-source-docs.mozilla.org/browser/base/sslerrorreport/preferences.html
 user_pref("security.ssl.errorReporting.enabled", false);
@@ -1595,6 +1623,7 @@ user_pref("security.password_lifetime", 1); // [DEFAULT: 30]
 // NOTE] Username & password is still available when you enter the field
 user_pref("signon.autofillForms", false);
 user_pref("signon.autofillForms.autocompleteOff", true);
+user_pref("signon.showAutoCompleteOrigins", false);
 // -------------------------------------
 // Pref : Disable websites autocomplete
 // Don't let sites dictate use of saved logins and passwords. 
@@ -1680,7 +1709,7 @@ user_pref("browser.cache.disk.smart_size.first_run", false);
 // -------------------------------------
 // Pref : Disable memory cache
 // user_pref("browser.cache.memory.enable", false);
-// user_pref("browser.cache.memory.capacity", 0);
+// user_pref("browser.cache.memory.capacity", 0); // [HIDDEN PREF ESR]
 // -------------------------------------
 // Pref : Disable fastback cache
 // To improve performance when pressing back/forward Firefox stores visited pages so they don't have to be re-parsed. This is not the same as memory cache.
@@ -1719,7 +1748,7 @@ user_pref("browser.formfill.expire_days", 0);
 user_pref("browser.shell.shortcutFavicons", false); // [DESKTOP]
 // -------------------------------------
 // Pref : Display "insecure" icon and "Not Secure" text on HTTP sites
-user_pref("security.insecure_connection_icon.enabled", true); // [DESKTOP]
+user_pref("security.insecure_connection_icon.enabled", true); // [DESKTOP] [DEFAULT: true]
 user_pref("security.insecure_connection_text.enabled", true); // [DESKTOP]
 user_pref("security.insecure_connection_icon.pbmode.enabled", true); // [DESKTOP]
 user_pref("security.insecure_connection_text.pbmode.enabled", true); // [DESKTOP]
@@ -1841,6 +1870,7 @@ user_pref("media.gmp-manager.updateEnabled", false); // [DESKTOP]
 user_pref("media.gmp.trial-create.enabled", false); // [WINDOWS] // [DESKTOP]
 // -------------------------------------
 // Pref : Disable all DRM content (EME: Encryption Media Extension)
+// [NOTE] if you need CDM, e.g. Netflix, Amazon Prime, Hulu, whatever
 // https://www.eff.org/deeplinks/2017/10/drms-dead-canary-how-we-just-lost-web-what-we-learned-it-and-what-we-need-do-next
 user_pref("media.eme.enabled", false);
 // -------------------------------------
@@ -1851,6 +1881,7 @@ user_pref("media.gmp-gmpopenh264.autoupdate", false); // [DESKTOP]
 user_pref("media.gmp-gmpopenh264.visible", false);
 // -------------------------------------
 // Pref : Disable widevine CDM (Content Decryption Module)
+// [NOTE] if you need CDM, e.g. Netflix, Amazon Prime, Hulu, whatever
 user_pref("media.gmp-widevinecdm.enabled", false); // [DESKTOP]
 user_pref("media.gmp-widevinecdm.visible", false); // [DESKTOP]
 user_pref("media.mediadrm-widevinecdm.visible", false); // [DEFAULT: true] // [FENNEC]
@@ -1927,7 +1958,7 @@ user_pref("urlclassifier.trackingWhitelistTable", "");
 // -------------------------------------
 // Pref : Decrease system information leakage to Mozilla blocklist update servers
 // https://trac.torproject.org/projects/tor/ticket/16931
-// https://www.reddit.com/r/firefox/comments/9v5lue/firefox_tip_sanitize_firefox_blocklist_url_so_it/
+// https://old.reddit.com/r/firefox/comments/9v5lue/firefox_tip_sanitize_firefox_blocklist_url_so_it/
 user_pref("extensions.blocklist.url", ""); // [URL SANITIZED: https://blocklists.settings.services.mozilla.com/v1/blocklist/3/%20/%20/]
 // -------------------------------------
 // Pref : Opt-out of add-on metadata updates
@@ -1982,7 +2013,6 @@ user_pref("browser.safebrowsing.provider.mozilla.nextupdatetime", "");
 user_pref("browser.safebrowsing.provider.mozilla.pver", "");
 user_pref("browser.safebrowsing.provider.mozilla.updateURL", "");
 user_pref("browser.safebrowsing.reportPhishURL", "");
-// user_pref("browser.safebrowsing.downloads.remote.timeout_ms", 0);
 // -------------------------------------
 // Pref : Disable passive Tracking Protection
 // Passive TP annotates channels to lower the priority of network loads for resources on the tracking protection list.
@@ -2086,7 +2116,7 @@ user_pref("extensions.formautofill.heuristics.enabled", false); // [DESKTOP]
 // user_pref("network.cookie.lifetimePolicy", 2);
 // -------------------------------------
 // Pref : Disable 3rd-party cookies and site-data
-// 0=(Allow) cookies and site data, 1=(Block) All third-party cookies, 2=(Block) All cookies, 3=(Block) Cookies from unvisited sites, 4=(Block) Third-party trackers
+// 0=(Allow) cookies and site data, 1=(Block) All third-party cookies, 2=(Block) All cookies, 3=(Block) Cookies from unvisited websites, 4=(Block) Cross-site and social media trackers
 // [NOTE] Can breaks payment gateways
 user_pref("network.cookie.cookieBehavior", 1);
 // -------------------------------------
@@ -2122,16 +2152,10 @@ user_pref("network.cookie.same-site.enabled", true); // [DEFAULT: true]
 // user_pref("dom.indexedDB.enabled", false); // [DEFAULT: true]
 // -------------------------------------
 // Pref : Do not download URLs for the offline cache
+user_pref("browser.cache.offline.storage.enable", false);
 user_pref("browser.cache.offline.enable", false);
 user_pref("browser.cache.offline.capacity", 0);
 // -------------------------------------
-// Pref : Disable offline cache on insecure sites
-// https://blog.mozilla.org/security/2018/02/12/restricting-appcache-secure-contexts/ 
-user_pref("browser.cache.offline.insecure.enable", false);
-// -------------------------------------
-// Pref : Display a notification bar when websites offer data for offline use
-user_pref("browser.offline-apps.notify", false); // [DEFAULT: true]
-// -------------------------------------
 // Pref : Disable service workers cache and cache storage
 // https://w3c.github.io/ServiceWorker/#privacy
 // user_pref("dom.caches.enabled", false);
@@ -2147,11 +2171,6 @@ user_pref("dom.storageManager.enabled", false);
 // https://developer.mozilla.org/en-US/docs/Web/API/Storage_Access_API
 user_pref("dom.storage_access.enabled", false);
 // -------------------------------------
-// Pref : Enforce websites to ask to store data for offline use
-// https://support.mozilla.org/questions/1098540
-// https://bugzilla.mozilla.org/959985
-user_pref("offline-apps.allow_by_default", false); // [DEFAULT: true]
-// -------------------------------------
 // Pref : Disable download history
 user_pref("browser.download.manager.retention", 0); // [DESKTOP]
 // -------------------------------------
@@ -2396,7 +2415,7 @@ user_pref("dom.network.enabled", false); // [DESKTOP]
 // Section : UI (User Interface)
 // >>>>>>>>>>>>>>>>>>>>>
 // Pref : Disable third-party cookie UI
-// user_pref("browser.contentblocking.rejecttrackers.ui.enabled", false); // [DESKTOP]
+user_pref("browser.contentblocking.rejecttrackers.ui.enabled", false);
 // -------------------------------------
 // Pref : Disable tracking protection UI list editing under preferences
 // user_pref("browser.contentblocking.trackingprotection.ui.enabled", false); // [DESKTOP]
@@ -2546,3 +2565,53 @@ user_pref("signon.management.page.feedbackURL", "");
 // Pref : Use APP locale over OS locale in regional preferences
 // https://bugzilla.mozilla.org/buglist.cgi?bug_id=1379420,1364789
 // user_pref("intl.regional_prefs.use_os_locales", false);
+// -------------------------------------
+// FF71+
+// -------------------------------------
+// Pref : Display a notification bar when websites offer data for offline use
+// https://bugzilla.mozilla.org/show_bug.cgi?id=1574480
+// https://hg.mozilla.org/mozilla-central/rev/9fedd8400ab2
+user_pref("browser.offline-apps.notify", false);
+user_pref("services.sync.prefs.sync.browser.offline-apps.notify", false);
+// -------------------------------------
+// Pref : Disable useragent updates and site specific overrides
+// https://bugzilla.mozilla.org/show_bug.cgi?id=1513574
+// https://hg.mozilla.org/mozilla-central/rev/59d191ed3f5b
+user_pref("general.useragent.site_specific_overrides", false);
+// -------------------------------------
+// Pref : Enable / Disable Firefox internal page, and related warnings
+// https://bugzilla.mozilla.org/show_bug.cgi?id=1589387
+// https://hg.mozilla.org/integration/autoland/rev/2379847488eb
+user_pref("network.warnOnAboutNetworking", false);
+// -------------------------------------
+// Pref : Enforce websites to ask to store data for offline use
+// https://bugzilla.mozilla.org/show_bug.cgi?id=1574480
+// https://hg.mozilla.org/mozilla-central/rev/9fedd8400ab2
+user_pref("offline-apps.allow_by_default", false);
+// -------------------------------------
+// Pref : Disable other sync settings (by prevention)
+// https://bugzilla.mozilla.org/show_bug.cgi?id=1570567
+// https://hg.mozilla.org/mozilla-central/rev/38ae84bb1ca3
+user_pref("services.sync.fxa.privacyURL", "");
+user_pref("services.sync.fxa.termsURL", "");
+// -------------------------------------
+// Pref : Disable offline cache on insecure sites
+// https://bugzilla.mozilla.org/show_bug.cgi?id=1237782
+// https://hg.mozilla.org/mozilla-central/rev/d52a0108ed8e
+user_pref("browser.cache.offline.insecure.enable", false);
+// -------------------------------------
+// Pref : Disable WebIDE to prevent remote debugging
+// https://bugzilla.mozilla.org/show_bug.cgi?id=1539462
+// https://hg.mozilla.org/integration/autoland/rev/eaa523b98e72
+user_pref("devtools.webide.enabled", false);
+user_pref("devtools.webide.autoinstallADBExtension", false);
+user_pref("devtools.webide.templatesURL", "");
+user_pref("devtools.webide.adaptersAddonURL", "");
+// -------------------------------------
+// Pref : Disable social trackingprotection notification
+// https://bugzilla.mozilla.org/show_bug.cgi?id=1570631
+// https://hg.mozilla.org/mozilla-central/rev/94c10676584a
+user_pref("privacy.socialtracking.notification.enabled", false);
+// -------------------------------------
+// FF72+
+// -------------------------------------