Troubleshooting
- New tabs do not appear to the right of the last tab
- No Internet while using Mozilla VPN on public WiFi
- No programs can load websites
- Norton Toolbar won't work with Firefox version 41
- No sound in Firefox
- No sound in Firefox 59 on Linux in some configurations
- Old versions of Java have been blocked - update and unblock Java
- Old versions of Websense cause startup crashes in Firefox
- OpenPGP Recipient Alias Configuration
- Pages appear small when I print or view them in Print Preview
- Pages appear tiny when I print or view them in Print Preview
- Pages fail to load after updating to Firefox 70
- Pages that use the Flash plugin crash on Mac
- PDF files are blank and can't be downloaded on Mac
- PDF files are blank or cause an error message on Mac
- Personas disappear from the Add-ons window
- Personas do not work with Themes
- Placeholder2
- Placeholder Firefox Android
- Playing 4K (Ultra-High Definition) YouTube videos in Firefox
- Plugin crash reports
- Plugin Crash Reports TB
- Pocket for Mac no longer available - FAQ
- Pocket Premium: Manage Billing and Subscription Preferences
- Pocket's top feature requests
- Pocket Transition to Firefox Accounts - FAQ
- Pocket Transition to Firefox Accounts - FAQ Redirect 1
- Pogo.com and other Java pages don't work
- Pre-8.1 versions of Websense cause startup crashes in Firefox
- Preferences are not saved
- Pressing Enter does not work in the Location bar
- Pressing Tab key does not select menus or buttons
- Primary Password is replacing Master Password in Thunderbird
- Privacy Policy
- Problems logging in to online bank account on Firefox
- Problems Sending and Receiving Messages
- Problems using Facebook in Firefox
- Problems with email and how to find help
- profile manager create and remove thunderbird profiles Redirect 1
- Profiling Thunderbird Performance
- Quick find bar opens when typing in text fields
- Quick fixes if your Firefox slows down
- Quickly access previously generated masks
- RCS messaging and Mozilla VPN
- Rebuilding Global Database
- Rebuilding the Global Database
- Receive notifications in MDN Plus
- Receive only important emails sent through your masks with Firefox Relay Premium
- Receive only important emails sent to your masks with Firefox Relay Premium
- Recover lost or missing Bookmarks
- Recover user data missing after Firefox update
- Re-enable add-ons that were disabled when updating Firefox
- Re-enable add-ons that were disabled when updating Firefox Redirect 1
- Register your own domain with Firefox Relay Premium
- Relay Phone Masking FAQ
- Remove a toolbar that has taken over your Firefox search or home page
- Remove a toolbar that has taken over your Firefox search or home page Redirect 1
- Remove the Other Bookmarks folder from the Bookmarks Toolbar
- Removing Comcast from Firefox Windows 7
- Removing the Search Helper Extension and Bing Bar
- Replace your Sync information
- Reply Above or Below Quoted Text
- Report issues with Marketplace apps
- Report Site Issues on Firefox for iOS
- Reset your Master Password if you've forgotten it
- Reset your Primary Password if you've forgotten it
- Resolve breaches with Firefox Monitor
- Resolve breaches with Mozilla Monitor
- Resolve “The installation seems to be incomplete/corrupt” error in Firefox on Windows
- Restore the default Smart Bookmarks Folders
- Restore the default Smart Bookmarks Folders Redirect 1
- Retrieving a Pocket Crash Log on Android
- Right-clicking does not work
- Running Windows as Administrator with Launcher Process Enabled Causes Drag and Drop Errors - How to Fix
- Running Windows as Administrator with Launcher Process enabled in Firefox causes Drag and Drop errors - How to Fix
- Screen resolution changes when starting Firefox
- Scrolling issue on Firefox after upgrading to OS X Mavericks
- Scrolling issues on Firefox after upgrading to OS X Mavericks
- Searches are redirected to another site
- Secure Connection Failed
- Secure connection failed and Firefox did not connect
- Securing a New Partner for Monitor Plus
- Send plugin crash reports to help Mozilla improve Firefox
- Server not found
- Server Not Found - Troubleshoot connection problems
- Set Firefox as your default browser from the notification panel
- Set Firefox as your default browser from the notification panel on Android
- Set Firefox as your default browser from the notification pane on Android
- Set Firefox as your default browser from the notification pane on Androidl
- Set Screen timeout
- Set Screen timeout on Firefox OS
- Setting Firefox as the default browser does not work
- Setting Firefox as the default browser does not work Redirect 1
- Setting Firefox as the default browser does not work - What to do
- Setting Up Roaming Users Profiles
- Small Resolution Screens
- Software Update Failed
- Software Update Failed TB
- Solutions for "Can not create temp folder archive" error when installing Firefox (Windows 10)
- Some 3D videos don't work in fullscreen