How to
- Block deceptive content and dangerous downloads in Firefox Redirect 1
- Blocking a sender
- Blocking cookies
- Block links from opening in external apps
- Block or load images over WiFi on Firefox for Android
- Block trackers with Firefox Focus for iOS
- Block websites from storing cookies and site data in Firefox
- Block websites from storing site preferences or login status in Firefox
- Bookmark a page in Firefox Reality
- Bookmark folders
- Bookmark pages in Firefox for Android
- Bookmark pages in Firefox Lite
- Bookmark pages in Firefox Rocket
- Bookmarks
- Bookmarks in Firefox
- Bookmarks Toolbar
- Bookmarks Toolbar - Display your favorite websites at the top of the Firefox window
- Bookmarks won't sync on Firefox for iOS
- Bookmark Tags
- Bookmark Tags - Categorize bookmarks to make them easy to find
- Browse faster by blocking images in Firefox Lite
- Browse faster by blocking images in Firefox Rocket
- Browse the Web on the Firefox OS mobile browser
- Browse web pages together on Firefox Hello
- Browsing basics
- Browsing history in Firefox - View the websites you have visited
- Browsing history in Firefox - View the websites you have visited
- Bugzilla - Managing account data
- Built-in themes in Firefox - alternative to complete themes
- Bulk Editing in Pocket on your computer
- Buttons for switching folder pane view
- Calendar integration into Thunderbird
- Calls and voicemail
- Canary domain - use-application-dns.net
- Canceling your Pocket Premium subscription
- Can I choose or change my IP address?
- Can I choose or change my IP address on Firefox Private Network?
- Can I use my screen reader with the new Firefox?
- Can I use the Firefox Private Network VPN outside of the U.S?
- Can I use the Mozilla VPN outside of the U.S?
- Capture screenshots using Firefox Lite
- Capture screenshots using Firefox Rocket
- Capture screenshots using Firefox Rocket Redirect 1
- "Certificate cannot be trusted" warning in Kazakhstan
- Certificate Pinning Reports
- Certificates
- Certificate warnings in Firefox for iOS
- Change color themes in Firefox for iOS
- Change Firefox Lite themes
- Change Firefox Lite to Night Mode
- Change primary email address on Firefox Accounts
- Change primary email address on Mozilla account
- Change primary email address on Mozilla accounts
- Change ringer, sound and vibration settings
- Changes affecting Adobe Flash on Firefox for Mac
- Change site permissions in Firefox Focus for Android
- Change site permissions in Firefox Klar for Android
- Changes to how file downloads are handled in Firefox version 98
- Changes to the Tab context menu in Firefox 78
- Change the default email program in Firefox for iOS
- Change the Default Language
- Change the default language for Firefox on Android
- Change the default language for Firefox Preview
- Change the default language in Firefox for Android Beta
- Change the default language of Firefox for Android
- Change the default language of Firefox for mobile
- Change the default language on Firefox for iOS
- Change the Default Language on Firefox OS
- Change the default search in Firefox Focus
- Change the default search in Firefox Focus on iOS
- Change the default search in Firefox Klar on iOS
- Change the fonts and colors websites use
- Change the Homepage to a specific page
- Change the keyboard feedback and layout on Firefox OS
- Change the look of Firefox for Android using themes
- Change themes in Firefox for iOS
- Change the primary email address on your Mozilla account
- Change the program used to open email links
- Change the tab list view in Firefox for iOS
- Change the wallpaper
- Change the wallpaper on Firefox OS
- Change the wallpaper on the lock screen and home screen
- Change to desktop view on Firefox Focus for iOS
- Change to desktop view on Firefox for Fire TV
- Change to desktop view on Firefox Klar for Android
- Change to desktop view on Firefox Klar for iOS
- Change web appearance settings in Firefox
- Change website appearance settings in Firefox
- Change what Firefox does when you click on a link or download a file
- Change what Firefox does when you click on or download a file
- Change your default search engine in Firefox for iOS
- Change your default search on Firefox Focus for Android
- Change your default search on Firefox Klar for Android
- Change your default search settings in Firefox
- Change your Firefox Accounts password
- Change your Firefox search settings on Windows 10
- Change your Mozilla account password
- Change your Mozilla accounts password
- Change your New Tab settings
- Change your theme in Firefox Focus for Android