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