Firefox Custom user.js

/* disable about:config warning */
user_pref("browser.aboutConfig.showWarning", false);

/*** STARTUP ***/
/* disable default browser check */
user_pref("browser.shell.checkDefaultBrowser", false);
/* disable Activity Stream telemetry */
user_pref("browser.newtabpage.activity-stream.feeds.telemetry", false);
user_pref("browser.newtabpage.activity-stream.telemetry", false);
/* disable Activity Stream Snippets */
user_pref("browser.newtabpage.activity-stream.feeds.snippets", false);
/* disable Activity Stream Top Stories, Pocket-based and/or sponsored content */
user_pref("browser.newtabpage.activity-stream.feeds.section.topstories", false);
user_pref("browser.newtabpage.activity-stream.improvesearch.topSiteSearchShortcuts", false);
user_pref("browser.newtabpage.activity-stream.improvesearch.topSiteSearchShortcuts.havePinned", "");
user_pref("browser.newtabpage.activity-stream.section.highlights.includePocket", false);
user_pref("browser.newtabpage.activity-stream.showSponsored", false);
user_pref("browser.newtabpage.activity-stream.showSponsoredTopSites", false);
user_pref("browser.newtabpage.activity-stream.feeds.discoverystreamfeed", false);
/* clear default topsites */
user_pref("browser.newtabpage.activity-stream.default.sites", "");

/*** GEOLOCATION / LANGUAGE / LOCALE ***/
/** GEOLOCATION **/
/* disable using the OS's geolocation service */
user_pref("geo.provider.ms-windows-location", false);
/* disable region updates */
user_pref("browser.region.network.url", "");
user_pref("browser.region.update.enabled", false);
/* set search region */
user_pref("browser.search.region", "US");
/** LANGUAGE / LOCALE **/
/* set preferred language for displaying web pages */
user_pref("intl.accept_languages", "en-US, en");

/*** QUIET FOX ***/
/* disable sending Flash crash reports */
user_pref("dom.ipc.plugins.flash.subprocess.crashreporter.enabled", false);
/* disable sending the URL of the website where a plugin crashed */
user_pref("dom.ipc.plugins.reportCrashURL", false);
/* disable about:addons' Recommendations pane (uses Google Analytics) */
user_pref("extensions.getAddons.showPane", false);
/* disable recommendations in about:addons' Extensions and Themes panes */
user_pref("extensions.htmlaboutaddons.recommendations.enabled", false);
/* disable telemetry */
user_pref("toolkit.telemetry.unified", false);
user_pref("toolkit.telemetry.enabled", false);
user_pref("toolkit.telemetry.server", "data:,");
user_pref("toolkit.telemetry.archive.enabled", false);
user_pref("toolkit.telemetry.newProfilePing.enabled", false);
user_pref("toolkit.telemetry.shutdownPingSender.enabled", false);
user_pref("toolkit.telemetry.updatePing.enabled", false);
user_pref("toolkit.telemetry.bhrPing.enabled", false);
user_pref("toolkit.telemetry.firstShutdownPing.enabled", false);
/* disable Telemetry Coverage */
user_pref("toolkit.telemetry.coverage.opt-out", true);
user_pref("toolkit.coverage.opt-out", true);
user_pref("toolkit.coverage.endpoint.base", "");
/* disable Health Reports */
user_pref("datareporting.healthreport.uploadEnabled", false);
/* disable new data submission, master kill switch */
user_pref("datareporting.policy.dataSubmissionEnabled", false);
/* disable Studies */
user_pref("app.shield.optoutstudies.enabled", false);
/* disable Crash Reports */
user_pref("breakpad.reportURL", "");
user_pref("browser.tabs.crashReporting.sendReport", false);

/*** BLOCKLISTS / SAFE BROWSING (SB) ***/
/** SAFE BROWSING (SB) **/
/* disable SB (Safe Browsing) */
user_pref("browser.safebrowsing.malware.enabled", false);
user_pref("browser.safebrowsing.phishing.enabled", false);
/* disable SB checks for downloads (both local lookups + remote) */
user_pref("browser.safebrowsing.downloads.enabled", false);
/* disable SB checks for downloads (remote) */
user_pref("browser.safebrowsing.downloads.remote.enabled", false);
user_pref("browser.safebrowsing.downloads.remote.url", "");
/* disable SB checks for unwanted software */
user_pref("browser.safebrowsing.downloads.remote.block_potentially_unwanted", false);
user_pref("browser.safebrowsing.downloads.remote.block_uncommon", false);
/* disable 'ignore this warning' on SB warnings */
user_pref("browser.safebrowsing.allowOverride", false);
/* disable update safebrowsing lists */
user_pref("browser.safebrowsing.provider.mozilla.lists", "");
/*** SYSTEM ADD-ONS / EXPERIMENTS ***/
/* disable Normandy/Shield */
user_pref("app.normandy.enabled", false);
user_pref("app.normandy.api_url", "");
/* disable Form Autofill */
user_pref("extensions.formautofill.addresses.enabled", false);
user_pref("extensions.formautofill.available", "off");
user_pref("extensions.formautofill.creditCards.available", false);
user_pref("extensions.formautofill.creditCards.enabled", false);
user_pref("extensions.formautofill.heuristics.enabled", false);

/*** LOCATION BAR / SEARCH BAR / SUGGESTIONS / HISTORY / FORMS ***/
/* disable Windows jumplist */
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);

/*** PASSWORDS ***/
/* disable saving passwords */
user_pref("signon.rememberSignons", false);
/* disable auto-filling username & password form fields */
user_pref("signon.autofillForms", false);

/*** CACHE / SESSION (RE)STORE / FAVICONS ***/
/** SESSIONS & SESSION RESTORE **/
/* disable storing extra session data */
user_pref("browser.sessionstore.privacy_level", 2);
/* set the minimum interval between session save operations */
user_pref("browser.sessionstore.interval", 1800000);
/* disable automatic Firefox start and session restore after reboot */
user_pref("toolkit.winRegisterApplicationRestart", false);

/*** MISCELLANEOUS ***/
/* disable sending additional analytics to web servers */
user_pref("beacon.enabled", false);
/* 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", "");

/*** EXTENSIONS ***/
user_pref("extensions.webextensions.restrictedDomains", "");

/*** RFP (RESIST FINGERPRINTING) ***/
user_pref("privacy.resistFingerprinting.block_mozAddonManager", true);

/*** PERSONAL ***/
/** WELCOME & WHAT's NEW NOTICES **/
user_pref("browser.startup.homepage_override.mstone", "ignore");
user_pref("startup.homepage_welcome_url", "");
user_pref("startup.homepage_welcome_url.additional", "");
user_pref("startup.homepage_override_url", "");
/** WARNINGS **/
user_pref("browser.tabs.warnOnClose", false);
user_pref("browser.tabs.warnOnCloseOtherTabs", false);
user_pref("browser.tabs.warnOnOpen", false);
/** APPEARANCE **/
user_pref("toolkit.legacyUserProfileCustomizations.stylesheets", true);
/** UX BEHAVIOR **/
user_pref("browser.backspace_action", 2);
user_pref("browser.urlbar.decodeURLsOnCopy", true);
user_pref("layout.word_select.eat_space_to_next_word", false);
user_pref("middlemouse.scrollbarPosition", true);
/** UX FEATURES: disable and hide the icons and menus **/
user_pref("browser.messaging-system.whatsNewPanel.enabled", false);
user_pref("extensions.pocket.enabled", false);
user_pref("identity.fxaccounts.enabled", false);
/** OTHER **/
user_pref("browser.bookmarks.max_backups", 0);
user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.addons", false);
user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features", false);
user_pref("xpinstall.signatures.required", false);