Update mozilla.cfg

✅ Added missing prefs (for prevention) in already disabled prefs
✅ Locked FF to display long lines in view-source page
⛔️ Locked FF warnings (about:config/networking)
⛔️ Locked pinned sites from searchbar
⛔️ Locked all sensors
⛔️ Disabled dark theme on forms (usefull with system dark theme e.g. Linux)
⛔️ Locked ctrl+tab back to the old one
ℹ️ Set FF to “don’t read add-ons from the user’s directory or the system.” (usefull for portable versions)
ℹ️ Disabled RFP-letterboxing (for now, let's see if FF will implement this pref in resistFingerprinting)

config/mozilla.cfg

@@ -85,6 +85,9 @@ lockPref("browser.newtabpage.activity-stream.showSearch", false); // [DESKTOP]
 lockPref("browser.newtabpage.activity-stream.showTopSites", false); // [DESKTOP]
 lockPref("browser.newtabpage.activity-stream.tippyTop.service.endpoint", ""); // [DESKTOP]
 lockPref("browser.newtabpage.activity-stream.discoverystream.config", ""); // [DESKTOP]
+lockPref("browser.newtabpage.activity-stream.section.highlights.includeBookmarks", false); // [DESKTOP]
+lockPref("browser.newtabpage.activity-stream.section.highlights.includeDownloads", false); // [DESKTOP]
+lockPref("browser.newtabpage.activity-stream.section.highlights.includeVisited", false); // [DESKTOP]
 // -------------------------------------
 // Pref : Disable new tab tile ads & preload
 // http://www.thewindowsclub.com/disable-remove-ad-tiles-from-firefox
@@ -175,6 +178,22 @@ lockPref("services.sync.prefs.sync.browser.urlbar.suggest.history", false); // [
 lockPref("services.sync.prefs.sync.browser.urlbar.suggest.history.onlyTyped", false); // [DESKTOP]
 lockPref("services.sync.prefs.sync.browser.urlbar.suggest.openpage", false); // [DESKTOP]
 lockPref("services.sync.prefs.sync.browser.urlbar.suggest.searches", false); // [DESKTOP]
+lockPref("services.sync.prefs.sync.browser.contentblocking.category", false); // [DESKTOP]
+lockPref("services.sync.prefs.sync.browser.contentblocking.introCount", false); // [DESKTOP]
+lockPref("services.sync.prefs.sync.browser.crashReports.unsubmittedCheck.autoSubmit2", false); // [DESKTOP]
+lockPref("services.sync.prefs.sync.browser.newtabpage.activity-stream.feeds.section.highlights", false); // [DESKTOP]
+lockPref("services.sync.prefs.sync.browser.newtabpage.activity-stream.feeds.section.topstories", false); // [DESKTOP]
+lockPref("services.sync.prefs.sync.browser.newtabpage.activity-stream.feeds.snippets", false); // [DESKTOP]
+lockPref("services.sync.prefs.sync.browser.newtabpage.activity-stream.feeds.topsites", false); // [DESKTOP]
+lockPref("services.sync.prefs.sync.browser.newtabpage.activity-stream.section.highlights.includeBookmarks", false); // [DESKTOP]
+lockPref("services.sync.prefs.sync.browser.newtabpage.activity-stream.section.highlights.includeDownloads", false); // [DESKTOP]
+lockPref("services.sync.prefs.sync.browser.newtabpage.activity-stream.section.highlights.includePocket", false); // [DESKTOP]
+lockPref("services.sync.prefs.sync.browser.newtabpage.activity-stream.section.highlights.includeVisited", false); // [DESKTOP]
+lockPref("services.sync.prefs.sync.browser.newtabpage.activity-stream.section.highlights.rows", false); // [DESKTOP]
+lockPref("services.sync.prefs.sync.browser.newtabpage.activity-stream.section.topstories.rows", false); // [DESKTOP]
+lockPref("services.sync.prefs.sync.browser.newtabpage.activity-stream.showSearch", false); // [DESKTOP]
+lockPref("services.sync.prefs.sync.browser.newtabpage.activity-stream.topSitesRows", false); // [DESKTOP]
+lockPref("services.sync.prefs.sync.browser.taskbar.previews.enable", false); // [DESKTOP]
 lockPref("services.sync.prefs.sync.dom.disable_open_during_load", false); // [DESKTOP]
 lockPref("services.sync.prefs.sync.dom.disable_window_flip", false); // [DESKTOP]
 lockPref("services.sync.prefs.sync.dom.disable_window_move_resize", false); // [DESKTOP]
@@ -439,6 +458,10 @@ lockPref("shield.savant.enabled", false); // [DESKTOP]
 lockPref("social.directories", ""); // [DEPRECATED] // [DESKTOP]
 lockPref("social.remote-install.enabled", false); // [DEPRECATED] // [DESKTOP]
 lockPref("social.whitelist", ""); // [DEPRECATED] // [DESKTOP]
+// -------------------------------------
+// Pref : Disable Firefox warnings
+lockPref("network.warnOnAboutNetworking", false);
+lockPref("general.warnOnAboutConfig", false);
 //
 // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
 // Section : IJWY To Shut Up   
@@ -465,7 +488,6 @@ lockPref("browser.geolocation.warning.infoURL", ""); // [DESKTOP]
 lockPref("browser.newtabpage.activity-stream.asrouter.providers.cfr", ""); // [DESKTOP]
 lockPref("browser.newtabpage.activity-stream.asrouter.providers.onboarding", ""); // [DESKTOP]
 lockPref("browser.newtabpage.activity-stream.fxaccounts.endpoint", ""); // [DESKTOP]
-lockPref("browser.newtabpage.activity-stream.improvesearch.topSiteSearchShortcuts.searchEngines", ""); // [DESKTOP]
 lockPref("browser.search.searchEnginesURL", ""); // [DESKTOP]
 lockPref("extensions.getAddons.themes.browseURL", ""); // [DESKTOP]
 lockPref("security.content.signature.root_hash", "");
@@ -517,6 +539,11 @@ lockPref("general.useragent.updates.url", ""); // [FENNEC]
 // Pref : Disable mailnews
 lockPref("mailnews.messageid_browser.url", ""); // [DESKTOP]
 lockPref("mailnews.mx_service_url", ""); // [DESKTOP]
+// -------------------------------------
+// Pref : Remove pinned sites from searchbar
+lockPref("browser.newtabpage.activity-stream.default.sites", ""); // [DESKTOP]
+lockPref("browser.newtabpage.activity-stream.improvesearch.topSiteSearchShortcuts.havePinned", ""); // [DESKTOP]
+lockPref("browser.newtabpage.activity-stream.improvesearch.topSiteSearchShortcuts.searchEngines", ""); // [DESKTOP]
 //
 // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
 // Section : Miscellaneous
@@ -702,7 +729,7 @@ lockPref("browser.download.forbid_open_with", true);
 // This will break extensions, language packs, themes and any other XPI files which are installed outside of profile directories
 // https://mike.kaply.com/2012/02/21/understanding-add-on-scopes/
 // archived: https://archive.is/DYjAM
-lockPref("extensions.enabledScopes", 1); // [DEFAULT: 1] // [HIDDEN PREF]
+lockPref("extensions.enabledScopes", 5); // [DEFAULT: 1] // [HIDDEN PREF]
 lockPref("extensions.autoDisableScopes", 15); // [DEFAULT: 15]
 // -------------------------------------
 // Pref : Enable warning when websites try to install add-ons
@@ -2137,7 +2164,7 @@ lockPref("privacy.resistFingerprinting.block_mozAddonManager", true); // [HIDDEN
 // Dynamically resizes the inner window by applying letterboxing, using dimensions which waste the least content area, If you use the dimension pref, then it will only apply those resolutions. The format is "width1xheight1, width2xheight2, ..." (e.g. "800x600, 1000x1000, 1600x900")
 // [WARNING] The dimension pref is only meant for testing, and we recommend you DO NOT USE it
 // https://bugzilla.mozilla.org/1407366
-lockPref("privacy.resistFingerprinting.letterboxing", true); // [HIDDEN PREF] // [DESKTOP]
+// lockPref("privacy.resistFingerprinting.letterboxing", true); // [HIDDEN PREF] // [DESKTOP]
 // lockPref("privacy.resistFingerprinting.letterboxing.dimensions", ""); // [HIDDEN PREF] // [DESKTOP]
 // -------------------------------------
 // Pref : Disable WebRTC, getUserMedia, screen sharing, audio capture, video capture
@@ -2172,6 +2199,9 @@ lockPref("dom.enable_performance_navigation_timing", false); // [DEFAULT: true]
 // https://bugzilla.mozilla.org/buglist.cgi?bug_id=1357733,1292751
 lockPref("device.sensors.enabled", false); // [DEFAULT: true]
 lockPref("device.sensors.ambientLight.enabled", false); // [DEFAULT: false]
+lockPref("device.sensors.motion.enabled", false); // [DEFAULT: true]
+lockPref("device.sensors.orientation.enabled", false); // [DEFAULT: true]
+lockPref("device.sensors.proximity.enabled", false); // [DEFAULT: false]
 // -------------------------------------
 // Pref : Disable gamepad API - USB device ID enumeration
 // Optional protection depending on your connected devices
@@ -2324,7 +2354,16 @@ defaultPref("browser.uidensity", 1); // [DEFAULT: 0] // [DESKTOP]
 lockPref("pref.general.disable_button.default_browser", true); // [DESKTOP]
 lockPref("pref.privacy.disable_button.view_passwords", true); // [DESKTOP]
 // -------------------------------------
-// Pref : Disable Reader mode by default
+// Pref : Disable Reader mode
 defaultPref("reader.parse-on-load.enabled", false);
+// -------------------------------------
+// Pref : Disable dark theme on forms
+defaultPref("widget.content.gtk-theme-override", "Adwaita"); // [DESKTOP]
+// -------------------------------------
+// Pref : Disable ctrl+tab back to the old one
+lockPref("browser.ctrlTab.recentlyUsedOrder", false); // [DESKTOP]
+// -------------------------------------
+// Pref : Display long lines in view-source page
+defaultPref("view_source.wrap_long_lines", true);
 //
 //