Settings Manage and customize your product experience with settings, add-ons, and more. In English Add-on Badges Make Firefox your default browser on Windows Firefox Page Info window Thunderbird and Junk / Spam Messages Manage local site storage settings Customize Firefox controls, buttons and toolbars Firefox options, preferences and settings Automatically fill in credit card and payment method data on Web forms Back up and restore information in Firefox profiles Firefox's performance settings Pop-up blocker settings, exceptions and troubleshooting Automatically fill in your address on web forms Firefox translation for Android Personalized extension recommendations Multi-Account Containers Manage my default search engines in Firefox for Android Global Privacy Control Add-ons in Firefox for iOS Restore the Menu bar in Firefox Tips for assessing the safety of an extension Change your default search settings in Firefox Export your Thunderbird Profile Add the Search bar to your Firefox toolbar How to manage your camera and microphone permissions with Firefox Notifications in Thunderbird How to set the home page Message threading in Thunderbird - keep messages grouped by conversation Switch from Chrome to Firefox Connection settings in Firefox Allow or block media autoplay in Firefox Recover lost or missing Bookmarks Compact mode workaround in Firefox Turn picture-in-picture mode controls on and off Open Firefox automatically when you start your computer Import settings and data into Thunderbird for Android JavaScript settings and preferences for interactive web pages Manage optional permissions for Firefox extensions Restore previous session - Configure when Firefox shows your most recent tabs and windows Import settings and data into Thunderbird Bookmarks Toolbar - Display your favorite websites at the top of the Firefox window Compacting folders How to set up Firefox Sync in Firefox for Android Archived Messages How to create and use mailing lists on Thunderbird Make Firefox your default browser Legacy browser support extension for Windows About Picture-in-Picture in Firefox Use the Firefox Sidebar to access bookmarks, history and synced tabs How to disable the Enterprise Roots preference Configure push email for Thunderbird for Android Signatures Use multiple profiles in Thunderbird Filelink for Large Attachments Customize Date and Time formats in Thunderbird Font size and zoom - increase the size of web pages Add or remove a search engine in Firefox Manage notifications in Firefox for Android How to opt out of studies on Firefox for Android How do I restore my tabs from last time? Display the Thunderbird menus and toolbar Disable or re-enable Pocket for Firefox Manage file types and download actions in Firefox An extension changed my New Tab page or home page Control audio or video playback with your keyboard How to restore a browsing session from backup Manage your extensions using the extensions button in the toolbar Usernames and passwords are not saved How do I use the Firefox spell checker? Use Firefox in another language Customize the Firefox home screen Change the fonts and colors websites use Tab preferences and settings Set up Certificate Authorities (CAs) in Firefox View PDF files using Firefox’s built-in viewer Recommendations from Firefox Manage extension shortcuts in Firefox Collections in Firefox Secure Firefox passwords with device sign-in Auto-close open tabs in Firefox for Android Change website appearance settings in Firefox Gmail and Thunderbird for Android Search with the Firefox address bar Change the program used to open email links Setting Firefox as the default browser does not work - What to do Share data with Mozilla to help improve Firefox How to Subscribe to News Feeds and Blogs Manage saved passwords in Firefox for iOS Customize Firefox using AutoConfig Choose display languages for multilingual web pages Move the navigation bar to the top or bottom of the app in Firefox for Android Thunderbird Android Telemetry Use bookmark folders to organize your bookmarks HTML5 audio and video in Firefox Find and install extensions on Firefox for Android FAQ Changing IMAP to POP Thunderbird add-ons - frequently asked questions Configuration Options for Accounts Config Editor Installing an Add-on in Thunderbird Manage Firefox updates Turn on/off saved logins, login sync and login autofill in Firefox for Android Manage Firefox with Microsoft Endpoint Manager (Intune) Set Firefox for Android to open links in native apps Choose your opening screen for Firefox for iOS Change your wallpaper in Firefox for Android New in Thunderbird for Android version 8 Cannot remove an add-on (extension or theme) Using Dark Theme in Firefox for Android Message List Columns Customize Firefox using policies.json Assign shortcuts to search engines Dedicated profiles per Firefox installation Drag and Drop errors with Firefox Launcher Process enabled and Windows UAC disabled - How to Fix Firefox for Enterprise Kiosk mode Importing Safari data into Firefox Firefox Suggest for Mobile Global Privacy Control in Firefox for Android Add alt text to images in your PDFs using Firefox How to fix preferences that won't save What to do if you can't download or save files Firefox doesn't save web form entries Accessibility features in Firefox - Make Firefox and web content work for all users Hyperlinks in Messages Not Working How to Install and Use another Language in the Dictionary on Thunderbird Instant Messaging and Chat How to Customize Toolbars Manage saved passwords in Firefox for Android Voice input in Firefox for Android Access your add-ons with a Mozilla account Advanced panel - System, network, updates, and other advanced settings in Thunderbird Scan QR codes in Firefox for iOS Built-in themes in Firefox - alternative to complete themes Security panel - Junk, scam, antivirus, and password settings in Thunderbird How is Facebook Container different from Multi-account Containers? Customize Firefox using Group Policy (Windows) Access hidden tabs in Firefox Firefox starts automatically when I restart Windows Install themes to change the look of Thunderbird Manage policies on macOS desktops Managing policies on Linux desktops Review installed extensions How to fix Pocket login issues Protect your container tabs with Mozilla VPN End of support for Adobe Flash Remove the Other Bookmarks folder from the Bookmarks Toolbar How to configure Close Tab warnings in Firefox How file downloads are handled in Firefox How to move the search bar in Firefox for iOS New in Thunderbird 102 Automatically fill in your address on web forms in Firefox for Android How to disable the Firefox Relay autofill icon on online fields and websites Upgrading from an older version of Thunderbird Multiwindow support on iPad for Firefox Choose your preferred PDF viewer in Firefox Restore the default Smart Bookmarks Folders Block and unblock websites with parental controls on Firefox Changes to toolbars and window sizes are not saved Change the default language of Firefox for Android 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? Creating a Newsgroup Account How to disable or change the Thunderbird start page Names but no Email Addresses are Displayed Configuration Options for Identity Configuration Options for Tags Configuration Options for Attachments Certificates Block a sender Installing Thunderbird on Ubuntu Linux Open Search How to Customize the New Mail Sound Installing and Using another Language in the Dictionary Uninstall Firefox for Android extensions Customize your New Tab page to hide or display content Enable or disable search engines on Firefox for iOS Customize Firefox Home on iOS Save passwords in Firefox for Android Scan QR codes in Firefox for Android Change the default language on Firefox for iOS Set Firefox as the default browser for iOS Add Firefox to the Today view on your iOS device 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 Print simplified, clutter-free pages in Firefox Privacy panel - Remote content and cookie settings in Thunderbird How to replace Google Assistant with a Firefox search Change themes in Firefox for iOS Feed reader replacements for Firefox How to use collections on addons.mozilla.org Debugging policy issues Unable to install add-ons (extensions or themes) in Thunderbird Disable high contrast mode in Firefox Privacy settings in Firefox for Enterprise Enforce policies on Firefox for Enterprise See active policies on Firefox for Enterprise Where can I find a list of policies for Firefox for Enterprise? Will policies I set work if users already installed Firefox? Make Firefox for Enterprise the default browser Firefox Browser welcome pages - helping you get more from Firefox products and services Dangerous directories Changing your two-step authentication device for your Mozilla account Playing videos in Firefox for Android Customize Firefox on macOS using configuration profiles Pocket sponsored stories on new tabs My privacy settings were changed from Custom to Standard Tab context menu Turn push notifications on or off in Firefox for iOS Add a Firefox widget to your Home screen Grant camera access to Firefox for Android Use Web Apps with Firefox for Android Primary Password is replacing Master Password in Thunderbird Mozilla Voice Server Proxy Retiring Unable to uninstall add-ons (extensions or themes) How to opt out of studies on Firefox for iOS View recent tabs on your Firefox for iOS homepage View recently saved bookmarks from your homepage on Firefox for iOS View bookmarks on your home screen View recent tabs on your Firefox for Android homepage View articles recommended by Pocket on your Firefox for Android homepage Personalize Firefox with colorways The language of the websites I visit changes when I turn Mozilla VPN on - What to do View articles recommended by Pocket on your Firefox for iOS homepage Change your wallpaper in Firefox for iOS Manage your Mozilla account newsletter and email preferences 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 New in Thunderbird 115 Supernova Unified Toolbar Autofill Credit Cards in Firefox for iOS Address autofill on Firefox Enable or disable Local Network Access on iOS Block links from opening in external apps Choose which browser opens Pocket web content on your Android Customize your wallpapers Manage your Monitor notifications Wrong home page opens when I start Firefox - How to fix Make Firefox the default browser on Android