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