// These settings will get applied on Firefox startup, overriding
// settings configured with about:config
// Load userChrome.css and userContent.css
user_pref("toolkit.legacyUserProfileCustomizations.stylesheets", true);
// Disable about:config warning
user_pref("browser.aboutConfig.showWarning", false);
// Use bookmarks toolbar as default location
user_pref("browser.bookmarks.defaultLocation", "toolbar_____");
// Enable compact mode
user_pref("browser.compactmode.show", true);
user_pref("browser.uidensity", 1);
// Custom content blocking
user_pref("browser.contentblocking.category", "custom");
// Always ask where to save downloads
user_pref("browser.download.useDownloadDir", false);
// Let Tabliss override the new tab window
user_pref("browser.newtab.extensionControlled", true);
// Always show bookmarks toolbar
user_pref("browser.toolbars.bookmarks.visibility", "always");
// Disable Picture-in-Picture tutorial
user_pref("media.videocontrols.picture-in-picture.video-toggle.has-used", true);
// Use system's file browser
user_pref("widget.use-xdg-desktop-portal", true);
// Don't autoplay videos
user_pref("media.autoplay.default", 5);
user_pref("media.autoplay.blocking_policy", 2);
user_pref("media.autoplay.allow-extension-background-pages", false);
user_pref("media.autoplay.block-event.enabled", true);
// Tracking protection
user_pref("privacy.trackingprotection.enabled", true);
// No telemetry
user_pref("toolkit.telemetry.cachedClientID", "blank");
// Don't send pings to other sites
user_pref("browser.send_pings.require_same_host", true);
// Don't allow websites to read my battery level
user_pref("dom.battery.enabled", false);
// Block third party cookies
user_pref("network.cookie.cookieBehavior", 1);
// No link prefetching
user_pref("network.predictor.enabled", false);
user_pref("network.dns.disablePrefetch", true);
user_pref("network.prefetch-next", false);
// Also on hover
user_pref("network.http.speculative-parallel-limit", 0);
// Disable pocket
user_pref("extensions.pocket.enabled", false);
user_pref("extensions.pocket.oAuthConsumerKey", "blank");
user_pref("extensions.pocket.api", "blank");
// Faster animations
user_pref("layout.frame_rate.precise", true);
// Hardware acceleration
user_pref("webgl.force-enabled", true);
user_pref("layers.acceleration.force-enabled", true);
user_pref("layers.offmainthreadcomposition.enabled", true);
user_pref("layers.offmainthreadcomposition.async-animations", true);
user_pref("layers.async-video.enabled", true);
user_pref("html5.offmainthread", true);
// Send "do not track" signal
user_pref("privacy.donottrackheader.enabled", true);
// Enable the titlebar which is then removed by the WM. Otherwise, the
// close button would be displayed on the tab bar
user_pref("browser.tabs.inTitlebar", 0);
// Disable controlling videos with media keys
user_pref("media.hardwaremediakeys.enabled", false);
// Disable the welcome screen
user_pref("browser.aboutwelcome.enabled", false);
// Disable Firefox view
user_pref("browser.tabs.firefox-view", false);
user_pref("browser.tabs.firefox-view-next", false);
// Disable password saving
user_pref("signon.rememberSignons", false);/*** Hide Tab Close buttons ***/
.tabbrowser-tab .tab-close-button {
visibility: collapse !important;
}