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Get started with Firefox - An overview of the main features 1,856,461
Insecure password warning in Firefox 1,186,289
Review Needed
How to change your default browser in Windows 10 1,020,170
Update Firefox to the latest release 954,139
What do the security warning codes mean? 865,090
Refresh Firefox - reset add-ons and settings 499,494
Customize the Firefox Homepage 348,367
Review Needed
New in Thunderbird 60 271,061
Important - Firefox has ended support for Windows XP and Vista 240,952
Why do I have to click to activate plugins? 210,707
Web Push notifications in Firefox 177,386
Firefox options, preferences and settings 152,976
Firefox Page Info window 148,612
Customize Firefox controls, buttons and toolbars 126,556
How to troubleshoot security error codes on secure websites 125,106
Cookies - Information that websites store on your computer 96,974
Install Firefox on Linux 92,456
Permission request messages for Firefox extensions 85,649
Recommended Extensions program 84,141
Enable and disable cookies that websites use to track your preferences 75,206
Content blocking 71,130
How to troubleshoot time related errors on secure websites 69,167
Mixed content blocking in Firefox 62,302
How to set the home page 56,548
Watch DRM content on Firefox 55,615
Keyboard shortcuts - Perform common Firefox tasks quickly 55,328
How to clear the Firefox cache 53,422
Profiles - Where Firefox stores your bookmarks, passwords and other user data 51,540
Firefox's performance settings 46,648
Fix "The bookmarks and history system will not be functional" error message 46,269
Manage local site storage settings 46,151
Add-on signing in Firefox 44,125
Snippets in Firefox FAQ 42,967
Install the Flash plugin to view videos, animations and games 39,833
Private Browsing - Use Firefox without saving history 39,745
Understanding the risks of installing self-hosted extensions 38,887
Review Needed
How to download and install Firefox on Windows 38,878
Review Needed
Does Firefox share my location with websites? 38,322
Fix passwords disappearing due to AVG security software 38,039
Connection settings in Firefox 37,402
Install an older version of Firefox 36,824
Delete browsing, search and download history on Firefox 36,410
Profile Manager - Create, remove, or switch Firefox profiles 36,137
Personalized extension recommendations 35,645
New in Thunderbird 52.0 35,232
Review Needed
Make Firefox the default browser on Android 34,536
Filelink for Large Attachments 34,017
Firefox Monitor - Frequently asked questions 33,041
Find what version of Firefox you are using 32,956
Clear cookies and site data in Firefox 32,786
What is the Accessibility Service Indicator? 32,492
How do I turn on the Do Not Track feature? 31,488
Make Firefox your default browser 30,285
Private Browsing on Firefox for Android 28,535
Pop-up blocker settings, exceptions and troubleshooting 28,457
Review Needed
Update to the latest version of Firefox for Android 28,219
Review Needed
The Flash plugin is blocked on some sites by default 27,691
New in Thunderbird 45.0 26,890
Export Firefox bookmarks to an HTML file to back up or transfer bookmarks 26,532
How to download and install Firefox on Mac 26,419
Review Needed
Password Manager - Remember, delete, change and import saved passwords in Firefox 26,132
Disable or remove Add-ons 25,418
Extensions in Private Browsing 25,281
About the New Tab page 24,749
Find and install add-ons to add features to Firefox 23,840
Back up and restore information in Firefox profiles 23,600
Secure connection failed and Firefox did not connect 23,265
Import bookmarks from Google Chrome 21,929
Change your default search settings in Firefox 21,703
Private Browsing in Firefox for iOS 21,574
Fix video and audio playback problems on Firefox for Windows 21,254
How does built-in Phishing and Malware Protection work? 20,826
Review Needed
Firefox can't load websites but other browsers can 20,103
Flash Plugin - Keep it up to date and troubleshoot problems 19,613
Restore bookmarks from backup or move them to another computer 19,525
Review Needed
Recovering important data from an old profile 18,883
Use Firefox in another language 18,218
Review Needed
Recover lost or missing Bookmarks 17,814
Tracking Protection in Firefox for Android 16,523
Review Needed
Why do Java, Silverlight, Adobe Acrobat and other plugins no longer work? 16,218
Enhanced Tracking Protection in Firefox for iOS 15,939
Review Needed
Moving Thunderbird Data to a New Computer 15,709
Firefox uses too much memory or CPU resources - How to fix 15,685
What happened to my Live Bookmarks? 15,590
Bookmarks Toolbar - Display your favorite websites at the top of the Firefox window 15,584
How do I set up Sync on my computer? 15,458
Recommendations from Firefox 15,076
Troubleshoot Firefox issues using Safe Mode 15,068
Websites don't load - troubleshoot and fix error messages 14,989
An extension changed my home page 14,947
Review Needed
Bookmarks in Firefox 14,895
Profiles - Where Thunderbird stores your messages and other user data 14,035
Allow or block media autoplay in Firefox 14,019
Firefox Screenshots 13,636
Choose display languages for multilingual web pages 13,317
Ignoring threads 13,145
Import Internet Explorer Favorites from another computer 13,070
Send plugin crash reports to help Mozilla improve Firefox 12,039
What's new in Firefox for iOS 17 11,916
Fix common audio and video issues 11,656
Firefox menu icon is missing on Android - how to access the menu 11,496
Restore previous session - Configure when Firefox shows your most recent tabs and windows 11,457
Rate your Firefox experience, surveys and out of date messages (Heartbeat) 11,266
Troubleshoot and diagnose Firefox problems 11,255
Automatically fill in your address on web forms 11,249
How to add translate feature to Firefox 10,860
New in Thunderbird 38.0 10,719
Firefox hangs or is not responding - How to fix 10,637
Change what Firefox does when you click on or download a file 10,616
Configuration Editor for Firefox 10,320
I'm having problems with my Firefox Account 10,197
Change primary email address on Firefox Accounts 10,110
Review Needed
Import Bookmarks and personal data from another browser 9,820
Where to find and manage downloaded files in Firefox 9,768
Use Firefox for Android to send videos to your Roku 9,496
Review Needed
What happened to Tracking Protection? 9,346
Import Bookmarks from an HTML file 9,263
Usernames and passwords are not saved 9,166
Review Needed
Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems 9,008
Send usage data on Firefox mobile browsers 8,925
Address bar autocomplete in Firefox - Search your bookmarks, history and tabs 8,840
Secure your Firefox Account with two-step authentication 8,828
Create a desktop shortcut to a website 8,713
Managing devices using Firefox Accounts 8,627
Install Firefox on your iPad, iPhone or iPod 8,567
Thunderbird and Gmail 8,556
Fix printing problems in Firefox 8,545
View PDF files in Firefox 8,461
Mixed content blocker in Firefox for Android 8,419
Add-ons disabled or fail to install on Firefox 8,390
Customizing Firefox Using Group Policy (Windows) 8,334
Uninstall Firefox from your computer 8,299
Fix login issues on websites that require a username and password 8,195
Upgrade your graphics drivers to use hardware acceleration and WebGL 8,120
Troubleshoot Firefox issues caused by malware 8,104
Websites say cookies are blocked - Unblock them 8,027
Restore the Menu bar in Firefox 7,954
Firefox add-on technology is modernizing 7,693
Firefox won't start - find solutions 7,649
Add or remove a search engine in Firefox 7,594
What's new in Firefox for iOS version 14 7,592
Search the Web on Firefox 7,461
Deploy Firefox with MSI installers 7,457
Review Needed
What to do if Firefox won't play any sounds 7,402
Configuring Networks to Disable DNS over HTTPS 7,368
Firefox DNS-over-HTTPS 7,353
Switching from Chrome to Firefox 7,304
How to run Firefox when your profile is missing or inaccessible 7,271
Access Mozilla Services with Firefox Account 7,265
Review Needed
Unable to install add-ons (extensions or themes) in Thunderbird 7,233
Firefox support has ended for Mac OS X 10.6, 10.7 and 10.8 7,174
Multi-Account Containers 7,169
Recover user data missing after Firefox update 7,147
Install Firefox on your phone or tablet 7,135
Review Needed
Change the Homepage to a specific page 7,117
Use the Troubleshooting Information page to help fix Firefox issues 7,104
How do I tell if my connection to a website is secure? 7,051
Reset your Firefox Account password with Recovery Keys 6,937
Warning Unresponsive script - What it means and how to fix it 6,887
Quick fixes if your Firefox slows down 6,815
Fix problems that cause images to not show 6,664
Can't add, change or save bookmarks - How to fix 6,597
Install Firefox on an Android device using Google Play 6,563
Review Needed
Font size and zoom - increase the size of web pages 6,372
What to do if you can't download or save files 6,353
Import Bookmarks from Internet Explorer or Microsoft Edge 6,285
Control Center - manage site privacy and security controls 6,284
Signatures 6,215
Disable third-party cookies in Firefox to stop some types of tracking by advertisers 5,994
What's new in Firefox for iOS 16 5,929
How to disable the built-in PDF viewer and use another viewer 5,878
Will Firefox work on my mobile device? 5,847
Control whether Firefox automatically fills in forms 5,801
Firefox crashes - Troubleshoot, prevent and get help fixing crashes 5,788
JavaScript settings and preferences for interactive web pages 5,786
Using Lightning with Google Calendar 5,760
Reset Firefox preferences to troubleshoot and fix problems 5,631
Manual Account Configuration 5,604
Change the fonts and colors websites use 5,292
Configure Windows Firewall to allow Firefox access to the Internet 5,270
Search suggestions in Firefox 5,151
Facebook Container - Prevent Facebook from tracking you on other websites 5,120
Cannot send messages 5,056
Configure firewalls so that Firefox can access the Internet 5,046
Sync bookmarks, tabs, history and passwords on Android 5,043
Use themes to change the look of Firefox 4,970
Updating Thunderbird 4,950
Sync logins in Firefox for Android 4,900
Clear your browsing history and other personal data on Firefox for Android 4,870
Review Needed
Adobe Flash protected mode in Firefox 4,795
Customize the New Tab page 4,775
Installing Thunderbird on Windows 4,692
Password Manager - Remember, delete and change passwords in Thunderbird 4,665
"Firefox is already running but is not responding" error message - How to fix it 4,643
Switching to Thunderbird 4,617
Remote Content in Messages 4,596
What is Firefox Focus? 4,566
Review Needed
What's new in Firefox for iOS (version 15) 4,539
Review Needed
Firefox and other browsers can't load websites 4,524
My sign in was “blocked for security reasons” on Firefox Accounts 4,471
Secure Website Certificate 4,382
How do I restore my tabs from last time? 4,311
Server Not Found - Troubleshoot connection problems 4,286
How to Manage Your Camera and Microphone Permissions with Firefox 4,248
Review Needed
Block websites from storing cookies and site data in Firefox 4,108
Remove websites from the address bar suggestions 4,077
HTML5 audio and video in Firefox 4,044
Installing Thunderbird on Linux 4,002
Use Firefox for Android to send videos to Chromecast 3,989
Review Needed
How to print web pages in Firefox 3,905
Fix problems with Facebook games, chat and more 3,816
Cannot receive messages 3,789
Using Multiple Profiles 3,778
Forget button - quickly delete your browsing history on Firefox 3,765
Tab preferences and settings 3,738
How do I delete a bookmark? 3,722
Setting Up Certificate Authorities (CAs) in Firefox 3,703
How to stop Firefox from making automatic connections 3,666
Review Needed
Use a Master Password to protect stored logins and passwords 3,555
Review Needed
Switch to Firefox Extended Support Release (ESR) for personal use 3,546
How to make Firefox and websites go full screen 3,456
Firefox Reader View for clutter-free web pages 3,454
How to fix preferences that won't save 3,443
Trackers and scripts Firefox blocks in Enhanced Tracking Protection 3,409
How do I watch Flash videos with Firefox for Android? 3,401
Firefox does not work - Common fixes to get you back up and running 3,361
New in Thunderbird 68.0 3,304
Firefox repeatedly opens empty tabs or windows after you click on a link 3,303
Installing Thunderbird on Mac 3,294
Automatic Account Configuration 3,243
I'm having problems confirming my new Firefox Account 3,232
Firefox keeps crashing at startup 3,211
Switch from POP to IMAP account 3,196
Task Manager - see what tabs or extensions are slowing down Firefox 3,153
Firefox takes a long time to start up 3,134
Hide or display content in New Tab 3,129
Firefox starts automatically when I restart Windows 3,128
Keyboard Shortcuts TB 3,118
Firefox ESR release cycle 3,074
How to Silently Install/Uninstall Firefox for Enterprise 2,987
Clear recent searches from the Search bar 2,939
Block and unblock websites with parental controls on Firefox 2,935
Use bookmark folders to organize your bookmarks 2,930
Share browser windows or your screen with sites you trust 2,906
Thunderbird and Junk / Spam Messages 2,895
Add the Search bar to your Firefox toolbar 2,870
Clear browsing history in Firefox for iOS 2,837
Change the program used to open email links 2,834
How to create and use mailing lists on Thunderbird 2,826
Websites look wrong or appear differently than they should 2,820
Fix problems connecting to websites after updating Firefox 2,772
Disable or re-enable Pocket for Firefox 2,759
Cannot remove an add-on (extension or theme) 2,735
Remove a toolbar that has taken over your Firefox search or home page 2,713
Accessibility features in Firefox - Make Firefox and web content work for all users 2,690
How do I copy and paste text on Android? 2,686
Common Myths about Private Browsing 2,681
Firefox for Fire TV 2,637
Organize Your Messages by Using Filters 2,613
Where are my logins stored? 2,612
Choosing a Firefox update channel 2,607
Review Needed
Calendar updates issues with Thunderbird 2,591
How do I use the Firefox spell checker? 2,582
Add-ons in Firefox for iOS 2,572
Archived Messages 2,535
IMAP Synchronization 2,520
Blocking a sender 2,500
Unable to install add-ons (extensions or themes) 2,483
Review Needed
Display the Thunderbird menus and toolbar 2,480
Unable to set Firefox as the default browser for iOS 2,478
Digitally Signing and Encrypting Messages 2,445
Tips for assessing the safety of an extension 2,445
Firefox Monitor 2,436
Which version of Firefox am I using? 2,393
Share data with Mozilla to help improve Firefox 2,385
Hardware acceleration and WindowBlinds causes Firefox to crash 2,364
Websites show a spinning wheel and never finish loading 2,362
Reset your Master Password if you've forgotten it 2,346
Export bookmarks to Internet Explorer 2,322
Review Needed
Tracking Protection on Firefox Focus for iOS 2,270
Add-ons that cause stability or security issues are put on a blocklist 2,264
Managing Account Data 2,259
Custom installation of Firefox on Windows 2,239
Pinned Tabs - keep favorite websites open and just a click away 2,211
Review Needed
Message threading in Thunderbird - keep messages grouped by conversation 2,164
Installing an Add-on in Thunderbird 2,157
View Virtual Reality with Firefox WebVR 2,146
Send text or multimedia messages from Firefox for Android 2,114
Add a secondary email address to Firefox Accounts 2,112
How to search the contents of the current page for text or links 2,089
How does Firefox for Android use the permissions it requests? 2,086
Review Needed
Install themes to change the look of Thunderbird 2,079
Adobe Flash plugin has crashed - Prevent it from happening again 2,054
Setting Firefox as the default browser does not work - What to do 2,015
Firefox Sync troubleshooting and tips 2,007
Review Needed
I've lost my Firefox Sync account information - What to do 2,001
Manage saved passwords in Firefox for Android 1,978
Running Windows as Administrator with Launcher Process enabled in Firefox causes Drag and Drop errors - How to Fix 1,965
Add a search engine to Firefox Focus for Android 1,961
Review Needed
Autocomplete web addresses in the URL bar in Firefox Focus for iOS 1,957
Add-on signing in Firefox for Android 1,953
Sort your bookmarks to quickly find the ones you want 1,937
Dedicated profiles per Firefox installation 1,923
Windows 10 S won't let me install Firefox 1,883
How to Install and Use another Language in the Dictionary on Thunderbird 1,881
Sending and Receiving Messages on Thunderbird 1,854
How to save a web page 1,835
Live Bookmarks - Subscribe to a web page for news and updates 1,786
Feed reader replacements for Firefox 1,705
Review Needed
Scan QR codes in Firefox for Android 1,664
Review Needed
What is the winmail.dat attachment? 1,661
Get started with Firefox for Android 1,641
New Email Address 1,633
Thunderbird add-ons - frequently asked questions 1,625
How to switch from 32-bit to 64-bit Firefox 1,605
Customizing Firefox Using AutoConfig 1,594
Review Needed
Customizing Firefox Using policies.json 1,562
Review Needed
Enhanced Tracking Protection in Firefox for desktop 1,527
Compacting folders 1,516
Copy a saved password in Firefox for Android 1,501
Add search engines in Firefox Focus for iOS 1,482
Review Needed
I can't play videos or audio on Firefox for Android 5.0 (Lollipop) 1,476
Review Needed
Get started with Firefox Lite 1,474
How do I tell if I have the 32-bit or 64-bit Firefox? 1,467
Remove a synced device from Firefox Accounts 1,463
What is the Mozilla Maintenance Service? 1,460
How to add, remove, edit and move bookmarks in Firefox for iOS 1,456
How to change the Thunderbird layout 1,440
Save web pages for later with Pocket for Firefox 1,433
Voice input in Firefox for Android 1,412
Add, delete and view bookmarked webpages in Firefox for Android 1,411
Review Needed
Use the Firefox Sidebar to access bookmarks, history and synced tabs 1,401
How to disable the Enterprise Roots preference 1,384
Review Needed
What do the SSLv3 error messages mean on Firefox? 1,379
Configuration Options for Accounts 1,357
How do I choose what types of information to sync on Firefox? 1,335
Vacation Response 1,314
Improve Mozilla Location Services by turning on Location Services in the Firefox for Android Settings 1,312
How to Use Find in Page for Firefox for Android 1,308
How do I create a screenshot of my problem? 1,298
Review Needed
Wrong home page opens when I start Firefox - How to fix 1,294
Add trusted websites to your allow list in Firefox Focus 1,277
Review Needed
Thunderbird and Yahoo 1,264
About Studies 1,263
I found a fake Firefox update 1,251
Export bookmarks to Safari 1,250
Automatically close Private Tabs when leaving Private Browsing 1,245
View synced tabs from other devices 1,235
Uninstall Firefox for Android 1,231
How to Subscribe to News Feeds and Blogs 1,220
Hyperlinks in Messages Not Working 1,218
Make Thunderbird the Default Mail Client 1,217
Search suggestions in Firefox Focus for iOS 1,212
Review Needed
Changes to toolbars and window sizes are not saved 1,205
Use mouse shortcuts to perform common tasks in Firefox 1,187
Review Needed
Sync your Firefox bookmarks and browsing history in iOS 1,182
Find and install Add-ons on Firefox for Android 1,174
Review Needed
Thunderbird and Hotmail 1,171
Change the look of Firefox for Android using themes 1,161
Review Needed
Firefox Health Report - understand your Android browser performance 1,125
Mozilla Crash Reporter 1,111
Problems with email and how to find help 1,108
How do I delete my Firefox Account? 1,096
Firefox for Android displays blank web pages 1,077
Viewing Desktop Sites on Firefox iOS 1,075
Review Needed
Manage bookmark folders in Firefox for Android 1,070
Config Editor 1,056
Rebuilding the Global Database 1,053
Change your Firefox Accounts password 1,005
Firefox Accounts - Managing account data 1,001
Information for EU, EEA, and Swiss users 992
Review Needed
Add web page shortcuts to your Home screen 979
What's new in Firefox Preview 979
How do I change to the desktop view in Firefox for Android? 971
Set Firefox Focus as default browser on Android 948
Firefox doesn't save web form entries 947
Some videos won't play in background 939
What is plugin-container 938
Bookmark Tags - Categorize bookmarks to make them easy to find 933
Keyboard Shortcuts for Searching 919
Download photos and files on Firefox for iOS 917
Use tabs to organize lots of websites in a single window 915
Use bookmarklets to quickly perform common web page tasks 905
Thunderbird FAQ 899
About Firefox Desktop Attribution 898
Firefox for Android no longer automatically downloads the Cisco OpenH264 plugin as of version 68 896
What if I'm locked out of Two-Step Authentication? 896
Add the Firefox Search widget to your home screen 888
Review Needed
Built-in themes in Firefox - alternative to complete themes 880
Manage my default search engines in Firefox for Android 880
Review Needed
Using Tabs on Firefox for Android 875
Configuration Options for Attachments 871
Deploying Firefox on Windows 864
Safe Mode Thunderbird 854
How to reset the default user agent on Firefox 853
Open a new tab in Firefox Focus for Android 850
Review Needed
Deploying Firefox with extensions 845
How to manage bookmarks in Firefox Preview 840
Switching the folder pane view 833
Play videos full screen on Firefox for Android 813
How to Use Attachments 804
Instant Messaging and Chat 803
Autocomplete settings in the Firefox Focus address bar 798
Review Needed
Accessibility not available during multi-process support 790
Save web pages to your Reading List on Firefox for Android 788
Open links in the background for later viewing with Firefox for Android 787
Review Needed
Reporting extensions and themes for abuse 764
Using a master password with Sync 763
Exporting and sharing a calendar 759
How to Customize Toolbars 757
Addressing an Email 749
Protect your Thunderbird passwords with a Master Password 748
Review Needed
Sign up for Pocket with your Firefox Account 746
Firefox Lite Turbo Mode 743
Re-enable add-ons that were disabled when updating Firefox 737
Cannot delete messages 733
How to update add-ons 730
Creating New Calendars 729
Review Needed
Avoid and report Mozilla tech support scams 724
Home page with pipe character opens extra tabs when Firefox starts 718
How to search IMDB, Wikipedia and more from the address bar 718
Where to find release notes for Firefox for Enterprise 716
Review Needed
Certificate Pinning Reports 706
Global Search 705
The difference between IMAP and POP3 704
Review Needed
Enable Wi-Fi on Firefox for Android 702
Certificate contains the same serial number as another certificate 697
Configuring Lightning 697
Firefox family-friendly browsing in a restricted profile 697
How to fix the Update Failed error message when updating Firefox 694
Search Firefox instantly on your Android home screen 691
Create secure passwords to keep your identity safe 689
How is Firefox Enterprise different from normal Firefox? 689
Review Needed
FAQ Changing IMAP to POP 684
Message Tags - Categorize your email in Thunderbird 684
How can I send a large attachment? 679
Control notifications in Firefox for Android 664
Review Needed
Firefox Marketplace Apps Stop Working on Firefox 47+ for Android 660
Firefox is no longer available for download in the T-Store 653
Manage logins on Firefox Lockwise on desktop 649
Review Needed
How do I install X-Ray Goggles? 630
Firefox Simplify Page for clutter-free printing 621
Firefox is stuck in Safe Mode 620
How can I get the latest version of Thunderbird on Windows XP or Vista? 619
Install Firefox Reality 619
Review Needed
Save passwords in Firefox for Android 618
What to do when searches take you to the wrong search website 618
Getting started with the Firefox for Android tablet browser 613
Is Firefox available for iPhone or iPad in my language? 612
Why is there an OpenH264 plugin in Firefox? 609
Quick Filter Toolbar 601
Thunderbird Software Update Failed 590
Firefox Focus for Android - Frequently asked questions 588
How do I know the status of my sync? 587
Playing 4K (Ultra-High Definition) YouTube videos in Firefox 585
Message List Columns 584
Advanced panel - System, network, updates, and other advanced settings in Thunderbird 579
Sync logins in Firefox desktop 578
Mute sound in Firefox tabs 565
Flash videos won't play full screen 562
Firefox says it's just updated every time it starts - how to fix 559
Review Needed
Log in to Pocket with your Firefox Account 557
How to use a Virtual Card (vCard) 554
How to add a shortcut to a website on Android 553
Review Needed
Uninstall Thunderbird from your computer 547
Set Firefox Lite as your default browser 543
Find what version of Thunderbird you are using 541
Changing calendar preferences 538
Send Tab from Firefox desktop to other devices 535
Review Needed
Switch to desktop view on Firefox Focus for Android 529
Review Needed
Changing IMAP to POP 521
Firefox ScreenshotGo - capture and organize screenshots 521
Change the default language of Firefox for Android 517
Firefox release notes - What's new and known issues 506
Customize Firefox Home on iOS 501
Maildir in Thunderbird 501
Share pages with Firefox from other browsers 501
Restore the default Smart Bookmarks Folders 492
Search open tabs in Firefox 490
Make Firefox for Enterprise the Default Browser 479
Creating a new event or task 478
Your hardware is no longer supported 476
Manage passwords on Firefox desktop with Firefox Lockwise 475
Review Needed
Assign shortcuts to search engines 471
unable launch older version on profile 461
Thunderbird support has ended for Mac OS X 10.6, 10.7 and 10.8 460
Access hidden tabs in Firefox 455
What's new in Firefox Klar for iOS (version 8) 455
Review Needed
Full screen browsing on Android 454
Legacy browser support extension for Windows 453
Access your add-ons with Firefox Accounts 449
How to Customize the New Mail Sound 447
Save to (or bookmark) and remove links from your home screen 444
Review Needed
Firefox keeps asking me for master password 443
Using Master Password on Firefox for Android 440
Disable Firefox Sync on a lost phone or tablet 437
Repackaging the Windows Installer 437
Manage extension shortcuts in Firefox 434
How to remove the Babylon toolbar, home page and search engine 432
Tables - Format messages with rows and columns 430
Mobile Accessibility Features 429
Unify your POP email accounts with a global inbox 429
Clear your search history in Firefox Search 422
How to disable or change the Thunderbird start page 419
How do I share Firefox between people on a computer? 415
Managing Firefox Updates 414
Send files to anyone securely with Firefox Send 414
Sync logins in Firefox for iOS 411
Lightning User Interface 410
Avoid crashes - Tips and tricks 408
How to install/uninstall Firefox Private Network 404
How to stay safe on the web 404
How do I use Do-not-track on Firefox for Android? 403
Thunderbird end of Support for XP and Vista 400
Ad blocking in Firefox Focus for Android 396
Firefox Lockwise - Managing account data 396
Review Needed
The thumbnails on the New Tab page are missing - how to get them back 396
Print a web page from Firefox for Android 393
Security panel - Junk, scam, antivirus, and password settings in Thunderbird 387
Manage saved passwords in Firefox for iOS 385
Uninstall Firefox for iOS 382
View articles in Reader View on Firefox for Android 382
Review Needed
Getting started with Firefox Lockwise 376
Thunderbird’s Scam Detection 374
Review Needed
Firefox crashes - asking for support 369
Set Firefox as your default browser on Lockwise for iOS 369
Send a tab from Firefox for iOS to another device 359
What is search hijacking? 358
Enable or disable cookies on Firefox for Android 355
Changes affecting Adobe Flash on Firefox for Mac 354
Inviting Other People to Events 348
View mobile bookmarks on your computer 348
Review Needed
Allow Firefox to load multiple tabs in the background 347
Review Needed
How do I turn Firefox Private Network on or off? 343
Zoom in and out of websites on Firefox for Android 337
Firefox Private Network - browse securely on public Wi-Fi 336
Adding a holiday calendar 335
Frequently asked questions - Firefox add-on technology is modernizing 335
Can I use my screen reader with the new Firefox? 333
Find my bookmarks, history and reading list on Firefox for iOS 332
Frequently Asked Questions 332
Life Feed - See the latest news Firefox Lite 332
Navigation bar in Firefox for iOS 332
Review Needed
How do you use Google Firebase in Firefox? 329
Review Needed
PDF files are blank or cause an error message on Mac 328
Review Needed
How to clear browsing history in Firefox Preview 325
I can’t play audio on a Remote Desktop Connection 325
How to add the Firefox Preview search widget to your home screen 322
Using Identities 320
Compact tabs - make your tabs smaller 319
Privacy settings in Firefox for Enterprise 318
Review Needed
How to set a default search engine in Firefox Preview 317
Why is there an OpenH264 plugin in Firefox for Android? 317
How to replace Google Assistant with a Firefox search 313
Thunderbird Crashes 311
Access toolbar functions using the keyboard 308
Suspicious activity on my Firefox Account 308
Names but no Email Addresses are Displayed 306
Set a homepage in Firefox for iOS 303
Set up a passcode and Touch ID in Firefox 302
New Tab settings in Firefox for iOS 301
What is Pocket? 298
Disable high contrast mode in Firefox 282
Open Search 278
Enhanced tracking protection in Firefox Preview 277
Web pages aren't displaying properly in Firefox for Android 276
Where to go for developer support 275
Review Needed
What’s the difference between Firefox Preview and Firefox for Android? 274
About Firefox Pioneer 271
Firefox for Echo Show 267
Identify noisy tabs in Firefox for Android 267
Install Firefox Lockwise on Android 262
Review Needed
Deploying Firefox Customizations on macOS 258
Best practices for installing and updating Firefox 257
Review Needed
Resize the Firefox Reality window to full screen or focus view 251
Review Needed
Enable auto-fill on your Android devices 249
Thunderbird and Logjam 249
Turn Turbo Mode off or on on Firefox for Fire TV 249
Mozilla Location Service in Firefox for Android 248
Review Needed
Search suggestions in Firefox Focus for Android 246
Glossary of Terms including types of Accounts 244
Enable email invitations for CalDAV servers configured to do serverside scheduling 243
Supported Platforms and System Requirements 242
Review Needed
Mozilla Crash Reporter TB 238
Setting Up Roaming Users Profiles 232
Use tabs in Firefox for iOS 232
Change to desktop view on Firefox for Fire TV 230
How do you use Leanplum in Firefox? 230
Review Needed
How to improve HKSCS localization on Firefox on Windows XP 228
How to enable password saving 224
Thunderbird Beta 224
Privacy panel - Remote content and cookie settings in Thunderbird 216
Change the default language on Firefox for iOS 215
Change color themes in Firefox for iOS 213
Enable or disable search engines on Firefox for iOS 211
Price Tracker is retiring 211
Creating a Newsgroup Account 209
Where can I find a list of policies for Firefox for Enterprise? 207
Review Needed
Add a login to Firefox Lockwise for desktop 205
Review Needed
Protecting Privacy while using Web Authentication 204
Uninstall Firefox for Android add-ons 203
Review Needed
Block or load images over WiFi on Firefox for Android 202
How to use TalkBack support in Firefox for Android for accessibility 202
Getting started with the Thunderbird main window 201
Review Needed
Clear cookies and site data in Firefox for Fire TV 200
Enforcing policies on Firefox for Enterprise 197
Firefox tab crashes with Quick Heal security software 197
See active policies on Firefox for Enterprise 196
Add web pages to your Reading List on Firefox for iOS 194
How do I submit a bug for Firefox Sync? 194
How to set up Firefox Sync in Firefox Preview 194
How is Facebook Container different from Multi-account Containers? 193
Search within a web page in Firefox for iOS 191
How to set Firefox Preview as your default browser on your Android device 190
Splash Accounts - Managing Account Data 188
Change your default search engine in Firefox for iOS 186
Using Saved Searches 184
How to install Firefox for Echo Show 178
Choosing a Firefox CPU architecture for Windows OS 177
How to set up a master password 174
Share your Android device with a Firefox Guest Session 171
Lastpass was disabled after updating Firefox 170
"Certificate cannot be trusted" warning in Kazakhstan 169
Changing the Date or Time of an Event 168
Facebook Container isn't working 166
How to save a page as a PDF on Firefox for Android 166
Night Mode in Firefox for iOS 166
Review Needed
Re-enable multi-process support disabled by Windows utilities 164
Enable auto-fill on your iPhone or iPad 162
Thunderbird Accessibility Features 160
Turn off web fonts in Firefox for Android 160
Review Needed
Clear your cache without clearing your browsing history 159
Working with events 157
Scan QR codes in Firefox for iOS 155
Review Needed
How to use collections on 154
Hide Images in Firefox for iOS 153
Using Voice Search in Firefox Reality 148
Review Needed
Page actions in Firefox Focus 147
Review Needed
Sync custom preferences 147
Private Mode in Firefox Reality 143
Review Needed
Add search engines to Firefox for iOS 142
Collections in Firefox Preview 142
Review Needed
64-bit Firefox crashes with Citrix's XenApp VM 139
Add shortcuts to websites on your home screen 138
Review installed extensions 138
Use gestures in Firefox for Android 137
View web pages in Reader View 137
Warning Unresponsive plugin - What it means and how to fix it 137
Reorder tabs from tab view 135
Use voice commands with Firefox for Echo Show 134
Safe browsing in Firefox Focus 129
Review Needed
What is a Mozilla Backpack? 127
How can I help by submitting mobile performance data? 124
How Firefox Sync keeps your data safe even if TLS fails 124
How to hide Pocket in your new Firefox tab 124
Remove a search engine in Firefox Focus for iOS 124
Review Needed
Change the default search in Firefox Focus on iOS 123
How to fix Pocket login issues 122
Use Face ID or Touch ID on Firefox Focus for iOS 117
Install system add-ons on Firefox for Enterprise 116
Firefox Reality for VR headsets 115
Review Needed
Logging in through Firefox Lockwise on desktop 115
AMO ( - Managing account data 114
Updating processor microcode 114
Surf and watch videos on Firefox for Fire TV 113
Slow down Firefox for Android's scroll speed 110
Firefox Subprocessor List 109
Change to desktop view on Firefox Focus for iOS 108
Change your default search on Firefox Focus for Android 108
Review Needed
Managing policies on Linux desktops 107
SUMO - Managing account data 105
Where can I go for support? 105
Will policies I set work if users already installed Firefox? 105
How to search in Firefox Preview 103
How do I know that Firefox Private Network is on? 102
Unable to log in to websites that use signText on Firefox 102
How to change themes in Firefox Preview 101
Thunderbird makes unrequested connections 101
Block cookies in Firefox Focus for Android 99
Review Needed
Edit or delete a login in Firefox Lockwise on desktop 99
Review Needed
Manage Flash in Firefox for Enterprise 96
Review Needed
Turn search suggestions on or off on Firefox for iOS 95
Drag and drop links and tabs to and from Firefox 94
How do you use Adjust in Firefox? 94
Install Firefox Lockwise on iOS 94
Bookmark a page in Firefox Reality 93
Common Voice Accounts - Managing Account Data 93
Remove a search engine in Firefox Focus for Android 92
Review Needed
Add Search Engine to Open Search 91
Unable to make video calls while Firefox Private Network is on 91
Block add-ons in Firefox for Enterprise 90
Review Needed
Disconnect your Firefox Account from Lockwise 90
Review Needed
I can't take screenshots of some websites on Firefox Lite 90
Using voice commands in Firefox for Amazon Fire TV 90
View articles in Reader Mode on Firefox Preview 90
Streaks, smeared lines or blurry web pages while scrolling on Firefox 88
File system paths on Linux are always treated as UTF-8 85
Private browsing in Firefox Preview 85
Send Tab from another mobile app to Firefox 85
Review Needed
Through the Looking Glass 85
Return to your Firefox for Fire TV home screen 84
Send a tab from Firefox Preview to another device 84
I can't find Firefox Focus in Germany, Austria or Switzerland 83
Thunderbird and AT&T 83
Creating a recurring event 81
Why is each open Firefox tab showing up in the Windows volume mixer? 81
How do I inspect and edit my first web page? 80
Review Needed
Firefox crashes on startup for users of Comodo security products after July 2017 Windows 10 update 79
How to cast YouTube videos on Firefox for Fire TV 79
Managing policies on OSX desktops 79
Get help with Firefox Developer Edition 78
Videos don't have sound on Citrix 78
Certificate warnings in Firefox for iOS 77
Review Needed
GeckoView in Firefox Focus 77
Open and switch between multiple websites (multi-tab) 77
Sign in to Firefox Accounts on Fire TV 77
Receive tabs on Firefox for Fire TV 76
Firefox Election Bundle 74
Screenshot categories in Firefox Lite 74
Where can I earn badges? 74
Am I really hacking a web page? 73
Firefox Preview - Your Rights 73
Disconnect your Firefox Account from Fire TV 72
What is Firefox Klar for Android? 72
Hubs - Managing account data 69
Bugzilla - Managing account data 68
DOM events changes introduced in Firefox 66 67
I can't install Facebook Container on Firefox 57+ 67
Firefox Focus in India, Indonesia, The Philippines and Thailand 65
Configuration Options for Identity 64
Add Firefox to the Today view on your iOS device 63
Private Browsing in Firefox Lite 62
Quick Action Bar - Share, Bookmark and Reader Mode 62
Will I have to sign in to Firefox Private Network with the same Firefox Account as my browser? 62
What is X-Ray Goggles? 61
Why do I see a message asking if I want to see the page hosted on HTTPS? 61
Add a home screen shortcut on Firefox Preview 60
Review Needed
Firefox Sync takes too long to sync or send pages from my iPhone or iPad 59
How do I share things from Firefox for Android? 59
Preview pages on your tab list with 3D Touch 59
I can’t watch YouTube videos fullscreen on Firefox Lite 58
Thunderbird and Comcast 58
Thunderbird and Sympatico 58
Where can I go for help and support? 57
What permissions does Firefox Private Network request? 55
Will location-aware browsing work with Firefox Private Network? 55
Change the default email program in Firefox for iOS 54
Browse faster by blocking images in Firefox Lite 53
Changing your two-step authentication device for your Firefox Account 53
Set up a feed on Firefox for Android 52
Which browsers work with Firefox Private Network? 48
Bookmark pages in Firefox Lite 47
In what countries will Firefox Private Network be available? 46
How to turn off data collection in Firefox Preview 45
MDN - Managing account data 45
Change Firefox Lite to Night Mode 44
Thimble - Managing account data 42
What is a badge? 42
Test versions of Firefox for your organization 41
Why do I need a Firefox account to use Firefox Private Network? 41
Clear my cookies on Firefox for Echo Show 38
What is Mozilla BadgeKit? 38
Discourse - Managing account data 37
Your hardware is no longer supported by Thunderbird 37
Can I choose or change my IP address on Firefox Private Network? 36
How do I sign out of Firefox Private Network? 34
Open a new tab in Firefox Klar 34
Review Needed
Cliqz Recommendations in Firefox 33
Capture screenshots using Firefox Lite 32
Drag links to and from Firefox Focus 32
How do I share the badges I've earned? 32
Use Face ID or Touch ID on Firefox Klar 31
Ad blocking in Firefox Klar for Android 30
Crash on Broadwell-U with old microcode 29
Is there Open Badges research available? 28
MozReps - Managing account data 28
Remove tiles from the Firefox for Echo Show home screen 28
Firefox Private Network crashes when I send files over an encrypted file transfer 27
Understanding in depth the profile per installation feature 27
What is Mozilla's Open Badges project? 27 - Managing account data 26
Does Firefox Private Network work on other browsers? 25
Find words on a page in Firefox Focus for iOS 25
Review Needed
Get involved with the Open Badges Community 25
What's new in Firefox for Android 25
How do I become an issuer? 24
Debugging policy issues 23
Review Needed
How can I personally display Open Badges? 22
Moderator - Managing account data 22
Do I need an account to publish a project using X-Ray Goggles? 21
What is Firefox Klar for iOS? 21
Help improve Firefox for Echo Show by sending usage data 19
Open Badges Calls 19
Find words on a page in Firefox Focus for Android 18
Review Needed
Firefox Nightly Error Collection 18
How can I share my Thimble projects? 17
What is the Open Badges Infrastructure? 17
Why Open Badges? 17
Find words on a page in Firefox Lite 16
I'm having problems with some websites when I use Firefox Private Network 15
Where can I go for technical help? 15
How to Unsubscribe from a Mozilla newsletter, such as Firefox & You 14
Pontoon - Managing account data 14
Firefox Klar for Android - Frequently asked questions 13
Review Needed
Add trusted sites to your allow list on Firefox Klar 12
Review Needed
Can I print a tip sheet with X-Ray Goggles shortcuts for an event? 12
Drag links to and from Firefox Klar 12
How do I embed a tutorial into my Thimble project? 12
What is Thimble? 12
Will Firefox Private Network slow down my browser? 11
Change your default search on Firefox Klar for Android 10
Crash reporting in Firefox Reality 10
How do I create a project with multiple files? 10
Snippets in Firefox - Frequently Asked Questions 10
Why did we create Mozilla BadgeKit? 10
3D Touch Shortcuts in Firefox for iOS 9
How can I get help with my Thimble project? 9
How can I get help with my X-Ray Goggles project? 9
How can I use Thimble to teach myself to code? 9
Block cookies in Firefox Klar for Android 8
Change to desktop view on Firefox Klar for iOS 8
Finding Firefox Preference Names 8
How can I insert a selfie into my Thimble project? 8
How can I use Thimble in my classroom or out-of-school learning environment? 8
Set Firefox Klar as your default browser 8
What is BadgeKit? 8
What's new in the August 31, 2015 release? 8
Can I create a single account for all of the students in my classroom to use? 7
Hide the back, forward, reload, bookmark button in the right click context menu 7
How can I contribute to the Thimble project? 7
Review Needed
How do I add code comments to a Thimble project? 7
I can't take screenshots on Firefox Klar 7
Review Needed
What is included in BadgeKit? 7
Where can I find community research on Open Badges? 7
Where is technical documentation for BadgeKit? 7
Who is BadgeKit for? 7
Change to desktop view on Firefox Klar for Android 6
Review Needed
Find words on a page in Firefox Klar for Android 6
Review Needed
Turning on Responsive Design Mode on Firefox 58+ 6
Change the default search in Firefox Klar on iOS 5
How can I access projects I made with an older version of Thimble? 5
What's new in Firefox Klar for Android (version 9) 5
Are all my badges public? 4
How do I report a Thimble bug? 4
Search suggestions in Firefox Klar for Android 4
Who else is issuing Open Badges? 4
Find words on a page in Firefox Klar for iOS 3
Review Needed
GeckoView in Firefox Klar 3
A full guide to keeping safe on the web 2
How does my organization become a displayer of Open Badges? 2
Is BadgeKit ready now? 2
Search suggestions in Firefox Klar for iOS 2
Review Needed
Autofill logins on Firefox 1
Customize your searches 1
Dangerous directories 1
Do I need an account to publish a project using Thimble?
Formatting problems caused by 8bit MIME
Managing Firefox Enterprise
Reader View for iOS