Most Visited

Article Visits Status
Get started with Firefox - An overview of the main features 3,020,475
What does "Your connection is not secure" mean? 1,136,337
Cookies - Information that websites store on your computer 1,098,614
New in Thunderbird 45.0 1,094,837
Refresh Firefox - reset add-ons and settings 1,041,795
Update Firefox to the latest version 984,255
How does built-in Phishing and Malware Protection work? 496,624
Page Info window - View technical details about the page you are on 429,278
Add-on signing in Firefox 422,394
What's New in Firefox for iOS (version 5.0) 364,088
How to troubleshoot the error code "SEC_ERROR_UNKNOWN_ISSUER" on secure websites 276,629
Web Push notifications in Firefox 192,444
Startup, home page, tabs, and download settings 167,707
About Tiles in New Tab 167,533
New in Thunderbird 38.0 153,028
Mixed content blocking in Firefox 139,032
Find and install add-ons to add features to Firefox 137,347
Make Firefox the default browser on Android 129,275
Why do I have to click to activate plugins? 124,069
Send plugin crash reports to help Mozilla improve Firefox 121,103
Install the Flash plugin to view videos, animations and games 106,556
Install Firefox on Linux 103,783
Watch DRM content on Firefox 99,205
How to download and install Firefox on Windows 98,512
Install an older version of Firefox 89,203
Pop-up blocker settings, exceptions and troubleshooting 86,440
How to set the home page 85,234
Troubleshoot the "Secure Connection Failed" error message 82,147
Private Browsing - Use Firefox without saving history 79,237
Keyboard shortcuts - Perform common Firefox tasks quickly 78,283
Review Needed
Advanced panel - Accessibility, browsing, network, updates, and other advanced settings in Firefox 76,357
Profiles - Where Firefox stores your bookmarks, passwords and other user data 71,621
How to clear the Firefox cache 70,152
Enable and disable cookies that websites use to track your preferences 68,752
Search suggestions in Firefox 64,662
Tracking Protection in Private Browsing 58,634
How to download and install Firefox on Mac 56,479
Filelink for Large Attachments 53,517
Settings for web content, pop-ups, fonts, and languages 52,488
Flash Plugin - Keep it up to date and troubleshoot problems 51,783
Support for Hello discontinued in Firefox 49 51,546
Delete cookies to remove the information websites have stored on your computer 48,679
Password Manager - Remember, delete, change and import saved passwords in Firefox 47,231
Restore bookmarks from backup or move them to another computer 43,613
Make Firefox your default browser 43,576
Adobe Flash protected mode in Firefox 43,117
Delete browsing, search and download history on Firefox 42,486
Firefox hangs or is not responding - How to fix 42,018
Customize the New Tab page 41,284
Change your default search settings in Firefox 41,011
Use the Java plugin to view interactive content on websites 40,496
Warning Unresponsive script - What it means and how to fix it 40,244
Use the Profile Manager to create and remove Firefox profiles 39,893
Disable or remove Add-ons 38,441
Troubleshoot Firefox issues using Safe Mode 37,887
Firefox is slow - How to make it faster 37,835
How do I set up Sync on my computer? 37,292
Review Needed
Private Browsing in Firefox for iOS 36,205
Find what version of Firefox you are using 36,107
Integration into Thunderbird 35,720
Update to the latest version of Firefox for Android 34,586
Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems 34,242
Adobe Flash plugin has crashed - Prevent it from happening again 31,611
What's new in Firefox for iOS (version 4.0) 30,858
Firefox crashes - Troubleshoot, prevent and get help fixing crashes 29,150
Reset Firefox preferences to troubleshoot and fix problems 27,875
Troubleshoot and diagnose Firefox problems 27,028
How do I tell if my connection to a website is secure? 25,807
Recovering important data from an old profile 25,023
Customize Firefox controls, buttons and toolbars 24,969
Websites don't load - troubleshoot and fix error messages 24,905
Firefox uses too much memory (RAM) - How to fix 24,855
Configuration Editor for Firefox 23,770
Export Firefox bookmarks to an HTML file to back up or transfer bookmarks 23,564
Control Center - manage site privacy and security controls 23,374
Bookmarks Toolbar - Display your favorite websites at the top of the Firefox window 23,183
Back up and restore information in Firefox profiles 22,905
Firefox uses too many CPU resources - How to fix 22,446
Moving Thunderbird Data to a New Computer 21,848
Security and passwords settings 21,831
Troubleshoot Firefox issues caused by malware 21,686
Private Browsing on Firefox for Android 21,386
Uninstall Firefox from your computer 21,161
Use plugins to play audio, video, games and more 21,042
Upgrade your graphics drivers to use hardware acceleration and WebGL 20,823
How to run Firefox when your profile is missing or inaccessible 19,914
Firefox won't start - find solutions 19,863
Settings for privacy, browsing history and do-not-track 19,792
Create bookmarks to save your favorite webpages 19,190
Fix common audio and video issues 18,785
Review Needed
Awesome Bar - Search your Firefox bookmarks, history and tabs from the address bar 18,744
Hide or display Tiles in New Tab 18,558
Server Not Found - Troubleshoot connection problems 18,538
Forget button - quickly delete your browsing history on Firefox 18,523
Tracking Protection in Firefox for Android 18,497
Firefox can't load websites but other browsers can 18,090
Import bookmarks from Google Chrome 17,913
Restore previous session - Configure when Firefox shows your most recent tabs and windows 17,794
How do I watch Flash videos with Firefox for Android? 17,678
Font size and zoom - increase the size of web pages 17,541
Recover lost or missing Bookmarks 17,515
Create a desktop shortcut to a website 17,407
Save web pages to your Reading List on Firefox for Android 17,307
Use themes to change the look of Firefox 17,066
Clear your browsing history and other personal data on Firefox for Android 16,939
Applications panel - Set how Firefox handles different types of files 16,935
Websites say cookies are blocked - Unblock them 15,765
Ignoring threads 15,512
Troubleshoot issues with plugins like Flash or Java to fix common Firefox problems 15,099
"This Connection is Untrusted" error message appears - What to do 14,645
JavaScript settings and preferences for interactive web pages 14,577
Fix problems that cause images to not show 14,358
Firefox support has ended for Mac OS X 10.6, 10.7 and 10.8 14,231
What happened to the File, Edit, and View menus? 13,649
Change what Firefox does when you click on or download a file 13,631
Use the Troubleshooting Information page to help fix Firefox issues 13,608
Review Needed
Fix printing problems in Firefox 13,553
Manual Account Configuration 13,516
Import Bookmarks from Internet Explorer 13,471
What to do if you can't download or save files 13,253
Use the Adobe Reader plugin to view or download PDF files 13,161
How to allow Java on trusted sites 13,145
Use the QuickTime plugin to play audio and video 13,069
View PDF files in Firefox 12,781
Will Firefox work on my mobile device? 12,522
Use the Search bar in Firefox 12,183
Signatures 12,170
Play Windows Media files in Firefox with the Windows Media plugin 12,169
Add-ons that cause stability or security issues are put on a blocklist 12,065
Thunderbird and Gmail 12,043
Firefox Health Report - understand your browser performance 11,961
Install Firefox on an Android device using Google Play 11,815
Install Firefox on your iPad, iPhone or iPod 11,673
Remove a toolbar that has taken over your Firefox search or home page 11,431
Configure Windows Firewall to allow Firefox access to the Internet 11,297
What do the SSLv3 error messages mean on Firefox? 11,233
Send anonymous usage data from Firefox on mobile devices 11,199
Block and unblock websites with parental controls on Firefox 11,105
Where to find and manage downloaded files in Firefox 11,080
How to fix preferences that won't save 11,022
How to change your default browser in Windows 10 10,797
Firefox menu icon is missing on Android - how to access the menu 10,787
Firefox keeps crashing at startup 10,701
Configure firewalls so that Firefox can access the Internet 10,511
Usernames and passwords are not saved 10,444
How do I delete a bookmark? 10,097
Import Bookmarks from an HTML file 10,009
How do I turn on the Do Not Track feature? 9,833
Tab preferences and settings 9,637
Unable to install add-ons (extensions or themes) 9,562
Sync bookmarks, tabs, history and passwords on Android 9,538
Firefox does not work - Common fixes to get you back up and running 9,289
Use the Silverlight plugin to play audio and video 9,186
Import Bookmarks and personal data from another browser 9,133
Switching to Thunderbird 9,069
Review Needed
Change the Default Language 8,952
Firefox takes a long time to start up 8,850
Control whether Firefox automatically fills in forms 8,634
Use Firefox for Android to send videos to your Roku 8,603
Firefox repeatedly opens empty tabs or windows after you click on a link 8,298
Installing Thunderbird on Windows 8,293
Wrong home page opens when I start Firefox - How to fix 8,282
How to print web pages in Firefox 8,205
Using Lightning with Google Calendar 8,075
Warning Unresponsive plugin - What it means and how to fix it 8,067
Use Firefox for Android to send videos to Chromecast 7,972
What's new in Firefox for iOS (version 3.0) 7,920
Mixed content blocker in Firefox for Android 7,737
"Firefox is already running but is not responding" error message - How to fix it 7,688
What to do if Firefox won't play any sounds 7,616
Fix video and audio playback problems on Firefox for Windows 7,605
Fix login issues on websites that require a username and password 7,593
Add or remove a search engine in Firefox 7,543
How do I restore my tabs from last time? 7,512
Automatic Account Configuration 7,353
Websites look wrong or appear differently than they should 7,195
Remote Content in Messages 7,170
How do I tell if I have the 32-bit or 64-bit Firefox? 6,937
Set Adobe Flash to "click to play" on Firefox 6,838
Fix problems with Facebook games, chat and more 6,837
How to make Firefox and websites go full screen 6,794
How to troubleshoot time related errors on secure websites 6,773
Review Needed
Firefox and other browsers can't load websites 6,769
Review Needed
Import Internet Explorer Favorites from another computer 6,741
Use bookmark folders to organize your bookmarks 6,734
Installing Thunderbird 6,667
HTML5 audio and video in Firefox 6,626
Installing Firefox for Android on an Amazon Kindle Fire 6,544
Use the Firefox interface in other languages with language packs 6,453
Set a home page on Firefox for Android 6,426
Installing Thunderbird on Linux 6,394
How do I copy and paste text on Android? 6,344
Can't add, change or save bookmarks - How to fix 6,297
Firefox's default home page has quick links to common features 6,230
How to disable the built-in PDF viewer and use another viewer 6,023
Using Multiple Profiles 6,007
Avoid crashes - Tips and tricks 5,930
Fix problems connecting to websites after updating Firefox 5,839
Change the program used to open email links 5,735
Cannot receive messages 5,725
Disable third-party cookies in Firefox to stop some types of tracking by advertisers 5,707
Setting Firefox as the default browser does not work - What to do 5,702
Websites show a spinning wheel and never finish loading 5,645
What is plugin-container 5,413
Where are my logins stored? 5,333
How do I change my Mac Security Settings so I can open Firefox Marketplace apps? 5,331
How to search the contents of the current page for text or links 5,275
Cannot send messages 5,274
I'm having problems confirming my new Firefox Account 5,110
Cannot remove an add-on (extension or theme) 5,064
Firefox Sync troubleshooting and tips 4,966
Clear recent searches from the Search bar 4,909
Set a homepage in Firefox for iOS 4,903
How do I use the Firefox spell checker? 4,801
I've lost my Firefox Sync account information - What to do 4,797
How to switch from 32-bit to 64-bit Firefox 4,784
How to save a web page 4,721
Accessibility not available during multi-process support 4,698
I found a fake Firefox update 4,683
What's new in Firefox for iOS 2.0 4,613
Re-enable add-ons that were disabled when updating Firefox 4,596
Organize Your Messages by Using Filters 4,497
How to stop Firefox from making automatic connections 4,415
Change the fonts and colors websites use 4,400
Firefox Marketplace Apps Stop Working on Firefox 48+ for Windows, Mac, and Linux 4,385
Blocking a sender 4,331
What is the Mozilla Maintenance Service? 4,319
Add-on signing in Firefox for Android 4,252
Mozilla Crash Reporter 4,232
Secure Website Certificate 4,125
IMAP Synchronization 4,109
Use a Master Password to protect stored logins and passwords 4,071
Navigation buttons like back, home, bookmarks and reload are missing 4,018
Search the web from the address bar 3,915
Firefox Reader View for clutter-free web pages 3,840
What happened to the Add-on Bar? 3,781
Reset your Master Password if you've forgotten it 3,778
Clear browsing history and cookies 3,776
Firefox no longer works with some versions of Windows XP 3,755
Thunderbird and Junk / Spam Messages 3,753
Updating Thunderbird 3,741
Access Mozilla Services with Firefox Accounts 3,702
Keyboard Shortcuts TB 3,702
Which version of Firefox am I using? 3,701
Profiles - Where Thunderbird stores your messages and other user data 3,598
What is the winmail.dat attachment? 3,591
Thunderbird and Hotmail 3,532
Installing Thunderbird on Mac 3,486
How to create and use mailing lists on Thunderbird 3,446
Addressing an Email 3,427
Configuration Options for Viewing Messages 3,422
How to remove the Babylon toolbar, home page and search engine 3,385
View synced tabs from other devices 3,346
Flash videos won't play full screen 3,293
Digitally Signing and Encrypting Messages 3,246
Hyperlinks in Messages Not Working 3,184
Export bookmarks to Internet Explorer 3,147
How to fix the Update Failed error message when updating Firefox 3,117
Remove websites from the Awesome Bar suggestions 3,115
Sending and Receiving Messages on Thunderbird 3,069
Review Needed
Pinned Tabs - keep favorite websites open and just a click away 3,063
Sort your bookmarks to quickly find the ones you want 3,035
I'm having problems with my Firefox Account 2,990
Archived Messages 2,963
Clear browsing history in Firefox for iOS 2,932
Firefox no longer works with Mac OS X 10.5 2,897
Live Bookmarks - Subscribe to a web page for news and updates 2,896
Vacation Response 2,890
Using the Lightning Calendar Add-on 2,879
Firefox Health Report says your browser is running slower than usual 2,821
Avoiding Quota Limits on Mail Servers 2,737
Add, delete and view bookmarked webpages in Firefox for Android 2,717
Unable to access secure (HTTPS) sites in Firefox 43 2,622
Fix "The bookmarks and history system will not be functional" error message 2,583
Sync your Firefox bookmarks and browsing history in iOS 2,559
Block websites from storing site preferences or login status in Firefox 2,557
How does Firefox for Android use the permissions it requests? 2,542
Manage your Top Sites in Firefox for Android 2,494
Add Security Exception 2,488
What happened to the Status Bar? 2,482
Make Thunderbird the Default Mail Client 2,475
Send text or multimedia messages from Firefox for Android 2,418
Accessibility features in Firefox - Make Firefox and web content work for all users 2,410
Where is the "Pocket for Firefox" button? 2,386
Switch from POP to IMAP account 2,362
Configuration Options for Folders 2,268
Standalone address book 2,268
Protect your Thunderbird passwords with a Master Password 2,261
How to turn off Java applets 2,202
New Email Address 2,177
How to Subscribe to News Feeds and Blogs 2,161
The Add-on Bar gives you quick access to add-on features 2,146
Marketplace apps for Firefox Desktop 2,121
Display the Thunderbird menus and toolbar 2,056
How to reset the default user agent on Firefox 2,055
Keyboard Shortcuts for Searching 2,054
Add social features to the Firefox sidebar 2,046
Tab Groups feature discontinued 2,037
Export bookmarks to Safari 2,030
How do I choose what types of information to sync on Firefox? 2,014
How do I create a screenshot of my problem? 1,963
Save web pages for later with Pocket for Firefox 1,905
Enable or disable search engines on Firefox for iOS 1,880
Share telemetry data with Mozilla to help improve Firefox 1,880
Use popular search suggestions in the Firefox Search bar 1,853
Find and install Add-ons on Firefox for Android 1,817
Manage my default search engines in Firefox for Android 1,794
View articles in Reader View on Firefox for Android 1,794
Focus by Firefox 1,768
Cannot delete messages 1,765
Changes to toolbars and window sizes are not saved 1,746
Firefox is stuck in Safe Mode 1,741
Download music, photos and videos 1,739
Get started with Firefox for Android 1,731
Access your add-ons with Firefox Accounts 1,700
WhatsApp alternatives - Firefox OS 1,670
FAQ Changing IMAP to POP 1,630
Use bookmarklets to quickly perform common web page tasks 1,571
Uninstall Firefox for Android 1,568
Copy a saved password in Firefox for Android 1,567
Problems with email and how to find help 1,548
Rebuilding the Global Database 1,524
Getting started with the Firefox for Android tablet browser 1,522
Windows Media or other plugins stopped working after Firefox update 1,510
How can I send a large attachment? 1,509
Use tabs to organize lots of websites in a single window 1,509
Creating New Calendars 1,492
Firefox Health Report - understand your Android browser performance 1,483
Installing Lightning into Thunderbird 1,482
Safe Mode Thunderbird 1,467
Review Needed
Voice input in Firefox for Android 1,467
Tips to protect your online privacy 1,460
Compacting folders 1,444
Open links in the background for later viewing with Firefox for Android 1,440
How to sync your add-ons with another copy of Firefox 1,415
Firefox crashes at startup after Symantec (Norton) update 1,406
Disable Firefox Sync on a lost phone or tablet 1,394
Exporting and sharing a calendar 1,391
Is Firefox available for iPhone or iPad in my language? 1,371
How to Customize Toolbars 1,353
Change the default language of Firefox for Android 1,347
Add search engines to Firefox for iOS 1,333
Installing apps 1,317
Firefox doesn't save web form entries 1,315
Open Search 1,315
Instant Messaging and Chat 1,302
How to add and remove bookmarks in Firefox for iOS 1,300
Config Editor 1,291
View all Hotmail or Outlook emails 1,290
ISP Configuration Settings 1,285
How to use a Virtual Card (vCard) 1,252
Avoid and report Mozilla tech support scams 1,247
Configuration Options for Updates 1,245
Configuration Options for Security 1,244
Your hardware is no longer supported 1,232
How can I get the latest version of Thunderbird on Windows XP or Vista? 1,231
Firefox release notes - What's New and Known Issues 1,209
Use the Firefox sidebar to access bookmarks, history and social features 1,184
Reply Above or Below Quoted Text 1,180
Configuring Lightning 1,175
What to do when searches take you to the wrong search website 1,137
The thumbnails on the New Tab page are missing - how to get them back 1,124
Insecure password warning in Firefox 1,110
Create secure passwords to keep your identity safe 1,097
Add email accounts 1,091
How to stay safe on the web 1,063
Installing an Add-on in Thunderbird 1,053
PDF files are blank or cause an error message on Mac 1,040
Configuring Email Aliases 1,032
How do I install X-Ray Goggles? 1,028
Using Tabs on Firefox for Android 1,020
I can't play videos or audio on Firefox for Android 5.0 (Lollipop) 1,017
Thunderbird FAQ 1,013
Firefox for Android displays blank web pages 1,007
How to Use Attachments 998
Unable to set Firefox as the default browser for iOS 985
Recalling an Email 983
Global Search 975
Thunderbird and Yahoo 959
Mute sound in Firefox tabs 950
Share a webpage through Firefox Share 949
Change your Firefox search settings on Windows 10 948
Bookmark Tags - Categorize bookmarks to make them easy to find 939
How to Install and Use another Language in the Dictionary on Thunderbird 935
Use mouse shortcuts to perform common tasks in Firefox 935
How to search IMDB, Wikipedia and more from the address bar 924
Why has my "Send" button been replaced with "Send Later" 908
Maildir in Thunderbird 906
Change your default search engine in Firefox for iOS 905
Firefox Marketplace Apps Stop Working on Firefox 47+ for Android 902
Home page with pipe character opens extra tabs when Firefox starts 898
Recommendations in Marketplace 897
Configuration Options for Attachments 896
How do I change to the desktop view in Firefox for Android? 894
How to Customize the New Mail Sound 893
Firefox says it's just updated every time it starts - how to fix 886
Configuration Options for Downloading Messages 875
Remove Top Sites from the Firefox for iOS home screen 875
Update to a new version 864
Thunderbird Accessibility Features 859
Calendar (Lightning and Sunbird) FAQ 848
Viewing Desktop Sites on Firefox iOS 847
Message List Columns 835
Enable or disable cookies on Firefox for Android 832
Disable Pocket for Firefox 823
Log in to Pocket with your Firefox Account 822
Customizing the Start Page 815
Automatically close Private Tabs when leaving Private Browsing 814
Allow Firefox to load multiple tabs in the background 807
Changing IMAP to POP 800
Firefox is no longer available for download in the T-Store 799
Save passwords in Firefox for Android 798
Frequently Asked Questions 795
Restore the default Smart Bookmarks Folders 794
Manage saved passwords in Firefox for Android 788
Switching the folder pane view 786
Quick Filter Toolbar 770
Certificate warnings in Firefox for iOS 767
Configuring Certificates 766
Enable Wi-Fi on Firefox for Android 744
Inviting Other People to Events 740
Firefox no longer works with Mac OS X 10.4 or PowerPC processors 734
Thunderbird Software Update Failed 728
Configuration Options for Sending Messages 726
Uninstall Firefox for iOS 707
Thunderbird and Logjam 700
Play videos full screen on Firefox for Android 661
Pages appear tiny when I print or view them in Print Preview 659
Changing calendar preferences 650
Creating a new event or task 650
Switch to a secure email provider 639
Share pages with Firefox from other browsers 634
Set up a passcode and Touch ID in Firefox 632
Get help with Webmaker for Android 626
Message Tabs 623
Use the Awesome Screen to search the web, bookmarks and more 620
Clear your search history in Firefox Search 582
Connect to Wi-Fi or data 579
Add the Firefox Search widget to your home screen 578
Where to go for developer support 574
Identify noisy tabs in Firefox for Android 573
Full screen browsing on Android 570
FAQ Thunderbird and Windows 7 561
Getting help with your Firefox OS-based Panasonic TV 557
How to hide the tab strip when you only have one tab 542
Lightning User Interface 533
Search Firefox instantly on your Android home screen 531
Firefox crashes - asking for support 524
Scan QR codes in Firefox for Android 506
Uninstall Thunderbird from your computer 502
Adding a holiday calendar 497
Firefox Sync upgrade - Frequently Asked Questions 493
Awesome Screen on iOS - access search and favorite sites in one place 492
How do I quit Firefox for Android? 492
Using Master Password on Firefox for Android 491
Sign up for Pocket with your Firefox Account 474
How can I use Thimble to teach myself to code? 471
Change your Firefox Accounts password 470
Why is there an OpenH264 plugin in Firefox? 466
What is my Firefox OS version? 465
Share your Android device with a Firefox Guest Session 459
Calls and voicemail 451
Names but no Email Addresses are Displayed 446
Change the tab list view in Firefox for iOS 444
Configuration Options for Accounts 431
Configure Origin Address for Multiple Gmail Accounts 428
Display name in message list and message pane 427
Print a web page from Firefox for Android 427
Change the look of Firefox for Android using themes 424
Configuration Options for Writing Messages 422
Configuration Options for Receiving Messages 416
How do I use Do-not-track on Firefox for Android? 415
Thunderbird Crashes 414
Firefox family-friendly browsing in a restricted profile 409
Configuration Options for Character Encoding 406
How do I share Firefox between people on a computer? 402
Mobile Accessibility Features 394
Improve Mozilla Location Services by turning on Location Services in the Firefox for Android Settings 382
Web pages aren't displaying properly in Firefox for Android 381
Manage saved passwords in Firefox for iOS 378
Add, manage and share contacts 375
Creating a Newsgroup Account 371
Menu Reference TB 370
Configuration Options for Filtering Messages 368
Tips for safe online shopping 363
How to add a shortcut to a website on Android 359
Norton Toolbar won't work with Firefox version 41 358
Add Firefox to the Today view on your iOS device 357
Set Date and Time 357
Manage photo and video gallery 354
Use tabs in Firefox for iOS 353
Glossary of Terms including types of Accounts 351
Zoom in and out of websites on Firefox for Android 351
Thunderbird and Comcast 347
Print List of Messages 340
Change the default language on Firefox for iOS 337
Suspicious activity on my Firefox Account 334
Thunderbird add-ons - frequently asked questions 327
Using Identities 320
Configuration Options for Tags 317
Navigation bar in Firefox for iOS 314
Uninstall apps 313
Why does Thunderbird warn me that my server doesn't use encryption? 313
What is Persona and how does it work? 309
How do I manage my Persona account? 306
Get started with Firefox OS 305
Thunderbird’s Scam Detection 305
Send and manage email 301
ISP Database 300
Uninstall Firefox for Android add-ons 300
Recover lost bookmarks on Firefox Developer Edition 296
Thunderbird and Windows 8 296
Search within a web page in Firefox for iOS 281
Configuration Options for Search 268
Test Pilot - try Firefox's experimental features 261
Viewing All Body Parts 256
Mobile-Optimized Websites in the Marketplace 251
Signing in using Persona 245
Add Search Engine to Open Search 244
Signing out using Persona 239
Using Saved Searches 238
Privacy and Security on Firefox OS 237
Dual SIM cards 235
New in Thunderbird 31.0 234
Search and discover content 233
Mozilla Crash Reporter TB 230
Thunderbird and AT&T 227
Add web pages to your Reading List on Firefox for iOS 225
Keyboard settings 221
How do I submit a bug for Firefox sync? 219
What is X-Ray Goggles? 218
Block or load images over WiFi on Firefox for Android 217
Troubleshoot Firefox OS 208
Share music, videos and photos 206
How to use TalkBack support in Firefox for Android for accessibility 205
How can I help by submitting mobile performance data? 204
Send messages 204
Email notifications and inbox sync 201
View data usage 201
FAQ AOL email Sent Folder 198
How do I inspect and edit my first web page? 195
Share your Internet connection 194
Turn off web fonts in Firefox for Android 194
What is Persona? 193
Configuration Options for Add-ons 191
Record Videos 191
Facebook import error on ZTE Open 190
How to save a page as a PDF on Firefox for Android 188
Play and manage music 184
Adding music 182
Using the Call Log 182
View web pages in Reader View 174
Scrollable tabs on the Firefox for Android home screen 173
Control notifications in Firefox for Android 170
Control screen brightness 169
Switch or quit apps 164
Setting the Screen Lock 163
Change the wallpaper 160
Find My Device for Firefox OS 160
Slow down Firefox for Android's scroll speed 154
Use gestures in Firefox for Android 152
Visit websites on Firefox OS 150
Thunderbird is stuck in Safe Mode 142
Navigating your Firefox OS phone 141
Set up a feed on Firefox for Android 138
Get help with Firefox Developer Edition 137
Working with events 136
Am I really hacking a web page? 135
Changing the Date or Time of an Event 135
What is a Mozilla Backpack? 135
Preview pages on your tab list with 3D Touch 132
Save battery power 125
Fix Gmail password errors 121
Thunderbird and Sympatico 121
What is Thimble? 121
What's new in Firefox for Android 119
Firefox 3.6 is no longer supported 118
Listen to the radio 118
How can I insert a selfie into my Thimble project? 112
Set your SIM PIN 112
Lastpass was disabled after updating Firefox 110
Localization Dashboards 110
Help with Marketplace purchases 105
Share files using Bluetooth 105
Do not track on Firefox OS 103
Using the camera 103
New in Thunderbird 101
Hardware acceleration and WindowBlinds causes Firefox to crash 100
Firefox no longer works with Windows 2000 98
Configuration Options for Startup 97
Take screenshots 97
Where can I go for help and support? 94
Hide the back, forward, reload, bookmark button in the right click context menu 93
List of Configuration Options 91
Thunderbird makes unrequested connections 91
Creating a recurring event 90
No SMS after switching from iPhone 90
Ringer, sound and vibrate settings 90
Why do I see a message asking if I want to see the page hosted on HTTPS? 83
Rate your Firefox experience (Heartbeat) 78
Add and manage calendars 77
Plugin Crash Reports TB 71
How can I share my Thimble projects? 70
Contact Firefox OS carrier support 69
My Mac won't shut down after updating to Firefox version 45 69
Tracking protection in Firefox OS 69
Set alarm clock 66
Thunderbird can't be opened after you install it on a Mac - How to fix 66
Unable to log in to websites that use signText on Firefox 65
Do I need an account to publish a project using Thimble? 64
Small Resolution Screens 64
How do I share things from Firefox for Android? 60
Use Firefox Accounts to manage your Marketplace apps 60
Where can I go for support? 60
Where can I earn badges? 53
How can I get help with my Thimble project? 51
Configuration Options for System 50
How do I create a project with multiple files? 50
How do I embed a tutorial into my Thimble project? 50
Do I need an account to publish a project using X-Ray Goggles? 49
Thunderbird Enterprise Deployment 46
How can I use Thimble in my classroom or out-of-school learning environment? 42
Set Screen timeout 42
The Whats New or Migration Assistant tabs keep appearing 41
What is Mozilla BadgeKit? 40
Build number not displayed 38
Can I print a tip sheet with X-Ray Goggles shortcuts for an event? 38
How can I get help with my X-Ray Goggles project? 38
Can I create a single account for all of the students in my classroom to use? 37
Update Accuweather or Wikipedia 36
Send performance data to Mozilla 32
Configuration Options for Identity 30
How can I contribute to the Thimble project? 29
How to improve HKSCS localization on Firefox on Windows XP 29
The call log won't finish loading 29
Configuration Options for Certificates 28
How can I access projects I made with an older version of Thimble? 28
How do I add code comments to a Thimble project? 28
Turn on Airplane Mode 26
What is Mozilla's Open Badges project? 25
New in Thunderbird 24 23
What's new in the August 31, 2015 release? 23
Check the battery level 22
Get involved with the Open Badges Community 21
How can I personally display Open Badges? 20
How do I report a Thimble bug? 19
Klar - Content blocking app for Safari 19
What is a badge? 17
How do I share the badges I've earned? 16
Pre-8.1 versions of Websense cause startup crashes in Firefox 16
Open Badges Calls 14
Why Open Badges? 14
Fixing Flash issues in Firefox 12
Is there Open Badges research available? 11
Where can I find community research on Open Badges? 11
What is BadgeKit? 10
What is included in BadgeKit? 10
Who is BadgeKit for? 10
Who else is issuing Open Badges? 9
How does my organization become a displayer of Open Badges? 8
What is the Open Badges Infrastructure? 8
Are all my badges public? 7
Why did we create Mozilla BadgeKit? 7
Is BadgeKit ready now? 6
Where can I go for technical help? 5
How do I become an issuer? 4
Connect your Firefox OS device with a Computer 2
Flushing your DNS cache 2
How to Unsubscribe from a Mozilla newsletter, such as Firefox & You 2
Get Menubar Back 1
Where is technical documentation for BadgeKit? 1