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Add-on Badges

Firefox Page Info window

Thunderbird and Junk / Spam Messages

Manage local site storage settings

Firefox options, preferences and settings

Customize Firefox controls, buttons and toolbars

Make Firefox your default browser on Windows

Automatically fill in credit card and payment method data on Web forms

Multi-Account Containers

Connection settings in Firefox

Automatically fill in your address on web forms

Pop-up blocker settings, exceptions and troubleshooting

Firefox translation for Android

Compacting folders

Restore the Menu bar in Firefox

Global Privacy Control

Firefox's performance settings

Personalized extension recommendations

Make Firefox your default browser

Filelink for Large Attachments

Message threading in Thunderbird - keep messages grouped by conversation

Tab context menu

Back up and restore information in Firefox profiles

Add-ons in Firefox for iOS

Change the primary email address on your Mozilla account

Open Firefox automatically when you start your computer

Bookmarks Toolbar - Display your favorite websites at the top of the Firefox window

Manage your extensions using the extensions button in the toolbar

How to set the home page

How to manage your camera and microphone permissions with Firefox

Export your Thunderbird Profile

Import settings and data into Thunderbird

Restore previous session - Configure when Firefox shows your most recent tabs and windows

Change your default search settings in Firefox

Allow or block media autoplay in Firefox

Config Editor

Add the Search bar to your Firefox toolbar

Tips for assessing the safety of an extension

Recover lost or missing Bookmarks

Switching from Chrome to Firefox

Recommendations from Firefox

An extension changed my New Tab page or home page

Add or remove a search engine in Firefox

Compact mode workaround in Firefox

Search with the Firefox address bar

Archived Messages

Signatures

Recovering important data from an old profile

Manage file types and download actions in Firefox

How do I restore my tabs from last time?

Use the Firefox Sidebar to access bookmarks, history and synced tabs

What if I'm locked out of Two-Step Authentication?

How to opt out of studies on Firefox for Android

Accessibility features in Firefox - Make Firefox and web content work for all users

Manage my default search engines in Firefox for Android

How to disable the Enterprise Roots preference

Turn picture-in-picture mode controls on and off

Customize Date and Time formats in Thunderbird

Setting Firefox as the default browser does not work - What to do

Tab preferences and settings

Using Multiple Profiles

Legacy browser support extension for Windows

Secure Firefox passwords with device sign-in

Manage notifications in Firefox for Android

Font size and zoom - increase the size of web pages

JavaScript settings and preferences for interactive web pages

Move the navigation bar to the top or bottom of the app in Firefox for Android

About Picture-in-Picture in Firefox

Auto-close open tabs in Firefox for Android

Manage optional permissions for Firefox extensions

Use bookmark folders to organize your bookmarks

Cannot remove an add-on (extension or theme)

Disable or re-enable Pocket for Firefox

Installing an Add-on in Thunderbird

Manage saved passwords in Firefox for iOS

Control audio or video playback with your keyboard

Usernames and passwords are not saved

Customize your New Tab page to hide or display content

Change the program used to open email links

Share data with Mozilla to help improve Firefox

Configuration Options for Accounts

Display the Thunderbird menus and toolbar

Print simplified, clutter-free pages in Firefox

View PDF files using Firefox’s built-in viewer

Use Firefox in another language

How to create and use mailing lists on Thunderbird

Voice input in Firefox for Android

Customizing Firefox Using Group Policy (Windows)

How to set up Firefox Sync in Firefox for Android

Turn on/off saved logins, login sync and login autofill in Firefox for Android

How to restore a browsing session from backup

Upgrading from an older version of Thunderbird

Find and install extensions on Firefox for Android

Using Dark Theme in Firefox for Android

How do I quit Firefox for Android?

Thunderbird add-ons - frequently asked questions

How to Install and Use another Language in the Dictionary on Thunderbird

Customize the Firefox home screen

Install themes to change the look of Thunderbird

Choose display languages for multilingual web pages

Changes to toolbars and window sizes are not saved

How do I use the Firefox spell checker?

Hyperlinks in Messages Not Working

Customize Firefox Home on iOS

Scan QR codes in Firefox for Android

Customizing Firefox Using policies.json

Assign shortcuts to search engines

Manage extension shortcuts in Firefox

Protect your container tabs with Mozilla VPN

Firefox Enterprise Kiosk mode

Add a Firefox widget to your Home screen

Set Firefox for Android to open links in native apps

Change website appearance settings in Firefox

Thunderbird Android Telemetry

Import settings and data into Thunderbird for Android

Change the fonts and colors websites use

HTML5 audio and video in Firefox

Change the default language of Firefox for Android

Set Firefox as the default browser for iOS

Change your Mozilla account password

Feed reader replacements for Firefox

Will policies I set work if users already installed Firefox?

Collections in Firefox

Playing videos in Firefox for Android

Importing Safari data into Firefox

End of support for Adobe Flash

Global Privacy Control in Firefox for Android

Address autofill on Firefox

Block links from opening in external apps

Choose your preferred PDF viewer in Firefox

Block and unblock websites with parental controls on Firefox

Firefox doesn't save web form entries

FAQ Changing IMAP to POP

How to disable or change the Thunderbird start page

Message List Columns

Open Search

How to Customize the New Mail Sound

How to Customize Toolbars

Manage saved passwords in Firefox for Android

Change the default language on Firefox for iOS

Access your add-ons with a Mozilla account

Set a homepage in Firefox for iOS

Built-in themes in Firefox - alternative to complete themes

How to replace Google Assistant with a Firefox search

Change themes in Firefox for iOS

Debugging policy issues

Managing Firefox Updates

Dedicated profiles per Firefox installation

Make Firefox for Enterprise the Default Browser

How to fix Pocket login issues

Sync logins in Firefox desktop

Configuring Networks to Disable DNS over HTTPS

Managing Firefox with Microsoft Endpoint Manager (Intune)

Use Web Apps with Firefox for Android

Remove the Other Bookmarks folder from the Bookmarks Toolbar

View bookmarks on your home screen

Personalize Firefox with colorways

Change your wallpaper in Firefox for iOS

New in Thunderbird 102

Unified Toolbar

Firefox Suggest for Mobile

Multiwindow support on iPad for Firefox

Add alt text to images in your PDFs using Firefox

Restore the default Smart Bookmarks Folders

How to fix preferences that won't save

What to do if you can't download or save files

Closing multiple Tabs - option to disable warning

How to disable the built-in PDF viewer and use another viewer

Creating a Newsgroup Account

Names but no Email Addresses are Displayed

Configuration Options for Identity

Configuration Options for Tags

Configuration Options for Attachments

Certificates

Block a sender

Installing Thunderbird on Ubuntu Linux

How to Subscribe to News Feeds and Blogs

Instant Messaging and Chat

Installing and Using another Language in the Dictionary

Uninstall Firefox for Android extensions

Enable or disable search engines on Firefox for iOS

Save passwords in Firefox for Android

Add Firefox to the Today view on your iOS device

Change the default email program in Firefox for iOS

Advanced panel - System, network, updates, and other advanced settings in Thunderbird

Scan QR codes in Firefox for iOS

Cliqz Recommendations in Firefox

Turn search suggestions on or off on Firefox for iOS

New Tab settings in Firefox for iOS

Security panel - Junk, scam, antivirus, and password settings in Thunderbird

Privacy panel - Remote content and cookie settings in Thunderbird

How is Facebook Container different from Multi-account Containers?

Customizing Firefox Using AutoConfig

Access hidden tabs in Firefox

Firefox starts automatically when I restart Windows

How to use collections on addons.mozilla.org

Unable to install add-ons (extensions or themes) in Thunderbird

Managing policies on macOS desktops

Disable high contrast mode in Firefox

Privacy settings in Firefox for Enterprise

Enforcing policies on Firefox for Enterprise

See active policies on Firefox for Enterprise

Where can I find a list of policies for Firefox for Enterprise?

Managing policies on Linux desktops

Setting Up Certificate Authorities (CAs) in Firefox

Drag and Drop errors with Firefox Launcher Process enabled and Windows UAC disabled - How to Fix

Review installed extensions

Firefox Browser welcome pages - helping you get more from Firefox products and services

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