Settings Manage and customize your product experience with settings, add-ons, and more. In English Make Firefox your default browser on Windows Add-on Badges Firefox Page Info window Firefox options, preferences and settings Thunderbird and Junk / Spam Messages Manage local site storage settings Customize items on your Firefox New Tab page Connection settings in Firefox Access AI chatbots in Firefox Customize Firefox controls, buttons and toolbars Web Push notifications in Firefox Firefox Translation Automatically fill in credit card and payment method data on Web forms Sponsored shortcuts on the New Tab page Refresh Firefox - reset add-ons and settings Firefox Password Manager - Alerts for breached websites Make Firefox your default browser Personalized extension recommendations How to manage your camera and microphone permissions with Firefox Firefox's performance settings Watch DRM content on Firefox Recover lost or missing Bookmarks Back up and restore information in Firefox profiles Manage marketing data settings in Firefox for Android Restore the Menu bar in Firefox Import data from another browser Pop-up blocker settings, exceptions and troubleshooting Filelink for Large Attachments Global Privacy Control Automatically fill in your address on web forms Firefox translation for Android Multi-Account Containers Export Firefox bookmarks to an HTML file to back up or transfer bookmarks Thunderbird and Gmail Change your default search settings in Firefox Tips for assessing the safety of an extension Restore bookmarks from backup or move them to another computer How to set the home page Bookmarks Toolbar - Display your favorite websites at the top of the Firefox window How to set up Firefox Sync in Firefox for Android Compacting folders Manage my default search engines in Firefox for Android Use Firefox in another language Import bookmarks and other data from Google Chrome Import settings and data into Thunderbird Restore previous session - Configure when Firefox shows your most recent tabs and windows Allow or block media autoplay in Firefox JavaScript settings and preferences for interactive web pages Turn picture-in-picture mode controls on and off Sync bookmarks, tabs, history and passwords on Android Thunderbird add-ons - frequently asked questions Use the Firefox Sidebar to access bookmarks, history and synced tabs Message threading in Thunderbird - keep messages grouped by conversation Recommendations from Firefox Profile Manager - Create and remove Thunderbird profiles Customize your wallpapers Manage your extensions using the extensions button in the toolbar Add-ons in Firefox for iOS Use Firefox in Full Screen mode Add the Search bar to your Firefox toolbar Scan QR codes in Firefox for iOS Font size and zoom - increase the size of web pages Add or remove a search engine in Firefox Switch from Chrome to Firefox How to change the Thunderbird layout Manage optional permissions for Firefox extensions Setting Firefox as the default browser does not work - What to do How to disable the Enterprise Roots preference How do I restore my tabs from last time? Import settings and data into Thunderbird for Android Signatures Control whether Firefox automatically fills in forms Customize your New Tab page to hide or display content About Picture-in-Picture in Firefox Manage notifications in Firefox for Android Compact mode workaround in Firefox Customize Date and Time formats in Thunderbird Open Firefox automatically when you start your computer Import Bookmarks from an HTML file Getting Started with the Thunderbird main window (Supernova and newer) An extension changed my New Tab page or home page How do I use the Firefox spell checker? The difference between IMAP and POP3 Usernames and passwords are not saved Manage file types and download actions in Firefox Legacy browser support extension for Windows Gmail and Thunderbird for Android Disable or re-enable Pocket for Firefox Choose your preferred PDF viewer in Firefox Get started with the Mozilla VPN extension Use multiple profiles in Thunderbird Switch from POP to IMAP account Use the sidebar to access tools and vertical tabs Cannot remove an add-on (extension or theme) Quick actions in the Firefox search bar How do I change my DNS settings? 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IMAP Synchronization Manage saved passwords in Firefox for Android Advanced panel - System, network, updates, and other advanced settings in Thunderbird Add search engines in Firefox Focus for iOS Print simplified, clutter-free pages in Firefox Customize Firefox using Group Policy (Windows) Assign shortcuts to search engines Collections in Firefox Move the navigation bar to the top or bottom of the app in Firefox for Android Pocket sponsored stories on new tabs Turn on/off saved logins, login sync and login autofill in Firefox for Android How to pin and unpin Firefox from the taskbar on Windows 10 and Windows 11 Manage Firefox with Microsoft Endpoint Manager (Intune) Automatically fill in credit card information on Firefox for Android How to configure Close Tab warnings in Firefox Recommended Firefox privacy and security settings for families How do I change my Privacy features? Install the Pocket extension in your browser Firefox Suggest for Mobile Notifications in Thunderbird A program on your computer interferes with the Mozilla VPN extension Orbit Frequently Asked Questions Change the fonts and colors websites use Why does Mozilla disable some add-ons from running in Firefox? Changes to toolbars and window sizes are not saved HTML5 audio and video in Firefox How to disable or change the Thunderbird start page Config Editor Instant Messaging and Chat How to Customize Toolbars Access your add-ons with a Mozilla account Built-in themes in Firefox - alternative to complete themes Add a search engine to Firefox Focus for Android Security panel - Junk, scam, antivirus, and password settings in Thunderbird Privacy panel - Remote content and cookie settings in Thunderbird Feed reader replacements for Firefox Drag and Drop errors with Firefox Launcher Process enabled and Windows UAC disabled - How to Fix Playing videos in Firefox for Android Add a Firefox widget to your Home screen Control audio or video playback with your keyboard OpenPGP Recipient Alias Configuration Choose your opening screen for Firefox for iOS My default search engine changed after updating Firefox Receive only important emails sent through your masks with Firefox Relay Premium What languages is Mozilla VPN available in? Enabling the Pocket Share extension in iOS New in Thunderbird for Android version 8 Manage your Monitor notifications Firefox doesn't save web form entries Using Dark Theme in Firefox for Android Creating a Newsgroup Account Make Thunderbird the Default Mail Client Configuration Options for Attachments How to Install and Use another Language in the Dictionary on Thunderbird How to Customize the New Mail Sound Maildir in Thunderbird Enable or disable search engines on Firefox for iOS Change the default language on Firefox for iOS Set Firefox as the default browser for iOS Manage saved passwords in Firefox for iOS Set Firefox Lite as your default browser Remove a search engine in Firefox Focus for Android How to add the translate add-on to Firefox Firefox starts automatically when I restart Windows Search suggestions in Firefox Focus for iOS Getting started with the Thunderbird main window Disable high contrast mode in Firefox See active policies on Firefox for Enterprise Firefox Browser welcome pages - helping you get more from Firefox products and services Customize Firefox on macOS using configuration profiles Tab context menu Auto-close open tabs in Firefox for Android Text Encoding no longer available in the Firefox menu panel Change your theme in Firefox Focus for Android How to move the search bar in Firefox for iOS Change your wallpaper in Firefox for iOS Change website appearance settings in Firefox How to disable the Firefox Relay autofill icon on online fields and websites Unified Toolbar Keyboard shortcuts in Pocket for Web Global Privacy Control in Firefox for Android Enable or disable Local Network Access on iOS Thunderbird Mobile Telemetry Manage the VPN extension preferences Restore the default Smart Bookmarks Folders Change the default language of Firefox for Android Share data with Mozilla to help improve Firefox Closing multiple Tabs - option to disable warning How to disable the built-in PDF viewer and use another viewer How do I quit Firefox for Android? Names but no Email Addresses are Displayed Configuration Options for Identity Configuration Options for Tags Certificates Block a sender Installing Thunderbird on Ubuntu Linux Add Search Engine to Open Search How to Subscribe to News Feeds and Blogs Installing and Using another Language in the Dictionary Get help with Firefox Developer Edition Uninstall Firefox for Android extensions Thunderbird and Logjam Save passwords in Firefox for Android Voice input in Firefox for Android Add Firefox to the Today view on your iOS device Re-enable multi-process support disabled by Windows utilities Set a homepage in Firefox for iOS Change the default email program in Firefox for iOS Turn search suggestions on or off on Firefox for iOS New Tab settings in Firefox for iOS File system paths on Linux are always treated as UTF-8 How to replace Google Assistant with a Firefox search Add shortcuts to websites on your home screen Facebook Container isn't working How is Facebook Container different from Multi-account Containers? Block cookies in Firefox Focus for Android Change themes in Firefox for iOS Firefox Focus main Menu How to use collections on addons.mozilla.org Debugging policy issues Unable to install add-ons (extensions or themes) in Thunderbird Change Firefox Lite to Night Mode Add trusted websites to your allow list in Firefox Focus Manage Firefox updates Manage policies on macOS desktops Privacy settings in Firefox for Enterprise Enforce policies on Firefox for Enterprise Where can I find a list of policies for Firefox for Enterprise? Managing policies on Linux desktops Will policies I set work if users already installed Firefox? Make Firefox for Enterprise the default browser Review installed extensions How to fix Pocket login issues Enable auto-fill on your iPhone or iPad Set Firefox as your default browser on Lockwise for iOS Enable auto-fill on your Android devices Dangerous directories Using Dark Theme in Firefox for iOS My privacy settings were changed from Custom to Standard Change Firefox Lite themes Edit top sites on Firefox Lite home screen Firefox Lite enhanced search with Awesome bar What's new in Firefox Lite (version 2.5) Turn push notifications on or off in Firefox for iOS Use Web Apps with Firefox for Android End of support for Adobe Flash Mozilla Voice Server Proxy Retiring What information does Mozilla VPN collect? Unable to uninstall add-ons (extensions or themes) Set Firefox as your default browser from the notification panel on Android Exclude applications from Mozilla VPN protection Set Firefox Focus as the default browser for iOS View recently saved bookmarks from your homepage on Firefox for iOS View bookmarks on your home screen View articles recommended by Pocket on your Firefox for Android homepage Change your theme in Firefox Focus for iOS Personalize Firefox with colorways The language of the websites I visit changes when I turn Mozilla VPN on - What to do Install the Firefox Relay extension on Firefox for desktop View articles recommended by Pocket on your Firefox for iOS homepage Add a search engine to Firefox klar for Android Remove a search engine in Firefox Klar for Android Autocomplete settings in the Firefox Klar address bar How file downloads are handled in Firefox Change your wallpaper in Firefox for Android Enable light or dark mode in MDN Change site permissions in Firefox Focus for Android Change site permissions in Firefox Klar for Android Automatically fill in your address on web forms in Firefox for Android Manage your Mozilla account newsletter and email preferences How do I block phone calls or texts to my Relay Phone mask? Mozilla VPN message center Site Permission Add-ons What should I do if I'm redirected to the Firefox Relay FAQ when clicking a link within an email? Domains to allow for Firefox X-Mouse Button Control in Firefox 110 Install the Firefox Relay extension in Firefox for Android Turn off ads on MDN Plus How to automatically label your new email masks Why aren’t my add-ons working on some websites? Autofill Credit Cards in Firefox for iOS userChrome.css and .js and userContent are unsupported In what languages is Firefox Relay available in? Getting started with Pocket for iOS Customizing your reading settings in Pocket Change your language in Pocket Importing your links into Pocket Adding a shortcut to Pocket on your Windows desktop What permissions does Pocket for Android require and why? Customize your reading experience in Pocket Premium Thunderbird Matrix Chat FAQ How to delete an email mask Address autofill on Firefox Multiwindow support on iPad for Firefox Choose which browser opens Pocket web content on your Android Disable VPN protection for a specific website Change your location for a specific website How will DNS work when using the VPN extension? What to do if another extension interferes with the Mozilla VPN extension Customize your Firefox app icon on iOS Wrong home page opens when I start Firefox - How to fix Make Firefox the default browser on Android