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Manage and customize your product experience with settings, add-ons, and more.

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Make Firefox your default browser on Windows

About Add-on Badges

Close to tray starting in 154

Thunderbird and Junk / Spam Messages

View site information with Page Info

Manage local site storage settings

Access AI chatbots in Firefox

Customize Firefox controls, buttons and toolbars

Web Push notifications in Firefox

Firefox Translations

Sponsors on the home page and New Tab page

Refresh Firefox - reset add-ons and settings

Pop-up blocker settings, exceptions and troubleshooting

Firefox Password Manager - Alerts for breached websites

Block generative AI features with Firefox AI controls

Change Firefox options, preferences and settings

Automatically fill in credit and debit card payment methods data on web forms

How to manage your camera and microphone permissions with Firefox

How to set up Firefox Sync in Firefox for Android

Watch DRM content on Firefox

Firefox's performance settings

Scan QR codes in Firefox for iOS

Customize items on your Firefox New Tab page

Recover lost or missing Bookmarks

Personalized extension recommendations

Control AI features in Firefox for Android

Import data from another browser

Make Firefox your default browser

Filelink for Large Attachments

Compacting folders

Automatically fill in your address on web forms

Manage marketing data settings in Firefox for Android

Firefox translation for Android

Connection settings in Firefox

JavaScript settings and preferences for interactive web pages

Export Firefox bookmarks to an HTML file to back up or transfer bookmarks

Restore bookmarks from backup or move them to another computer

Restore the Menu bar in Firefox

On-device AI models in Firefox

How to set the home page

Allow or block media autoplay in Firefox

Global Privacy Control

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

Import settings and data into Thunderbird

Find and install extensions on Firefox for Android

Manually back up and restore Firefox profile data

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

Thunderbird and Gmail

Manage my default search engines in Firefox for Android

Manage Firefox search settings

Recommendations from Firefox

Control AI features in Firefox for iOS

How do I use the Firefox spell checker?

Quick actions in the Firefox search bar

Open Firefox automatically when you start your computer

Import bookmarks and other data from Google Chrome

Font size and zoom - increase the size of web pages

Switch from Chrome to Firefox

Control whether Firefox automatically fills in forms

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

How do I restore my tabs from last time?

Add alt text to images in your PDFs using Firefox

Manage Enhanced Tracking Protection exceptions

Why does Mozilla disable some add-ons from running in Firefox?

Add the Search bar to your Firefox toolbar

Signatures

Add-ons in Firefox for iOS

Message threading in Thunderbird - keep messages grouped by conversation

An extension changed my New Tab page or home page

Profile Manager - Create and remove Thunderbird profiles

Customize keyboard shortcuts in Firefox

Control audio or video playback with your keyboard

Manage optional permissions for Firefox extensions

Manage your extensions using the extensions button in the toolbar

Appearance Panel - Layout, Message List, Card View, Table View, Sorting and Threading settings

How to disable the Enterprise Roots preference

Manage notifications in Firefox for Android

Thunderbird add-ons - frequently asked questions

Extension data collection

IMAP Synchronization

Tips for assessing the safety of an extension

How to opt out of studies on Firefox for Android

Cannot remove an add-on (extension or theme)

OAuth2 Authentication for Yahoo, AOL and ATT

Import Bookmarks from an HTML file

Import Bookmarks and other data from Microsoft Edge

Display the Thunderbird menus and toolbar

Use Firefox in another language

Manage Firefox updates

How to change the Thunderbird layout

Manage extension shortcuts in Firefox

Customize Date and Time formats in Thunderbird

Import settings and data into Thunderbird for Android

Get started with the Mozilla VPN extension

Getting Started with Thunderbird Pro

Use bookmark folders to organize your bookmarks

Manage file types and download actions in Firefox

Use Firefox in Full Screen mode

Use multiple profiles in Thunderbird

Customize Firefox Home on iOS

Compact mode workaround in Firefox

Use the sidebar to access tools and vertical tabs

Usernames and passwords are not saved

Audio and video files in Firefox

Tab preferences and settings

Configuration Options for Accounts

Add or remove a search engine in Firefox

How to pin and unpin Firefox from the taskbar on Windows 10 and Windows 11

Import login and password data from a file

How do I change my DNS settings?

Gmail and Thunderbird for Android

Change the fonts and colors websites use

Dedicated profiles per Firefox installation

Set up Certificate Authorities (CAs) in Firefox

Protect your container tabs with Mozilla VPN

Turn picture-in-picture mode controls on and off

About Picture-in-Picture in Firefox

Add a Firefox widget to your Home screen

HTTPS-Only Mode in Firefox Focus for Android

Getting Started with the Thunderbird main window (Supernova and newer)

Choose your preferred PDF viewer in Firefox

Block and unblock websites with parental controls on Firefox

Change the program used to open email links

How do I change to the desktop view in Firefox for Android?

Built-in themes in Firefox - alternative to complete themes

The difference between IMAP and POP3

Importing Safari data into Firefox

Manage Firefox with Microsoft Endpoint Manager (Intune)

Multi-Hop - Encrypt your data twice for enhanced security while using Mozilla VPN

Change website appearance settings in Firefox

Setup your email account for using End-To-End Encryption

Recommended Firefox privacy and security settings for families

Get started with Thunderbird

Thunderbird for Desktop and Thundermail

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

Export bookmarks to Safari

FAQ Changing IMAP to POP

How to disable or change the Thunderbird start page

Switch from POP to IMAP account

Customize the Firefox home screen

Autocomplete settings in the Firefox Focus address bar

Autocomplete web addresses in the URL bar in Firefox Focus for iOS

Access hidden tabs in Firefox

Add trusted websites to your allow list in Firefox Focus

Firefox for Enterprise Kiosk mode

Use Web Apps with Firefox for Android

How to configure Close Tab warnings in Firefox

How to restore a browsing session from backup

Upgrading from an older version of Thunderbird

Getting started with Thunderbird for Android

Disable Mozilla VPN protection for a specific website

Change your location for a specific website

How to fix preferences that won't save

How do I quit Firefox for Android?

Message List Columns

Uninstall Firefox for Android extensions

Installing an Add-on in Thunderbird

Manage saved passwords in Firefox for Android

Voice input in Firefox for Android

Set Firefox as the default browser for iOS

Manage saved passwords in Firefox for iOS

Multi-Account Containers

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

Add search engines in Firefox Focus for iOS

How to add the translate add-on to Firefox

Change your two-step authentication device for your Mozilla account

View bookmarks on your home screen

How file downloads are handled in Firefox

My default search engine changed after updating Firefox

Change your wallpaper in Firefox for Android

Enable light or dark mode in MDN

Site Permission Add-ons

Firefox Suggest for Mobile

Configure push email for Thunderbird for Android

Thunderbird and Exchange

Change your default browser

How to search IMDB, Wikipedia and more from the address bar

Reset Firefox preferences to troubleshoot and fix problems

Firefox doesn't save web form entries

Config Editor

How to Customize the New Mail Sound

How to Subscribe to News Feeds and Blogs

How to reset the default user agent on Firefox

Scan QR codes in Firefox for Android

Change the default language on Firefox for iOS

Access your add-ons with a Mozilla account

Turn search suggestions on or off on Firefox for iOS

Add a search engine to Firefox Focus for Android

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

How is Facebook Container different from Multi-account Containers?

Customize Firefox using AutoConfig

Customize Firefox using Group Policy (Windows)

Install themes to change the look of Thunderbird

Assign shortcuts to search engines

Choose display languages for multilingual web pages

Getting started with the Thunderbird main window

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

Review installed extensions

Dangerous directories

Playing videos in Firefox for Android

Turn push notifications on or off in Firefox for iOS

Grant camera access to Firefox for Android

Set Firefox for Android to open links in native apps

Remove the Other Bookmarks folder from the Bookmarks Toolbar

View and control data collected by Mozilla VPN

How to opt out of studies on Firefox for iOS

Change your theme in Firefox Focus for Android

Install the Firefox Relay extension on Firefox for desktop

Change your wallpaper in Firefox for iOS

Change site permissions in Firefox Focus for Android

How do I block phone calls or texts to my Relay Phone mask?

Turn off ads on MDN Plus

What languages is Mozilla VPN available in?

In what languages is Firefox Relay available in?

Enable or disable Local Network Access on iOS

Thunderbird Mobile Telemetry

A program on your computer interferes with the Mozilla VPN extension

Manage the Mozilla VPN extension preferences

Stop screen brightness from dimming in Thunderbird for Android

Translate webpages in Firefox for iOS

Install the Thunderbird Pro Add-on in Thunderbird Desktop

Restore the default Smart Bookmarks Folders

Changes to toolbars and window sizes are not saved

Change the default language of Firefox for Android

Share data with Mozilla to help improve Firefox

Closing multiple Tabs - option to disable warning

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

Using Dark Theme in Firefox for Android

Creating a Newsgroup Account

Names but no Email Addresses are Displayed

Make Thunderbird the Default Mail Client

Configuration Options for Identity

Configuration Options for Tags

Configuration Options for Attachments

Thunderbird makes unrequested connections

Certificates

Block a sender

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

Installing Thunderbird on Ubuntu Linux

Add Search Engine to Open Search

Instant Messaging and Chat

Installing and Using another Language in the Dictionary

How to Customize Toolbars

Get help with Firefox Developer Edition

Maildir in Thunderbird

Thunderbird and Logjam

Customize your New Tab page to hide or display content

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

Re-enable multi-process support disabled by Windows utilities

Set a homepage in Firefox for iOS

Change the default email program in Firefox for iOS

Set Firefox Focus as default browser on Android

New Tab settings in Firefox for iOS

Remove a search engine in Firefox Focus for Android

Print simplified, clutter-free pages in Firefox

File system paths on Linux are always treated as UTF-8

Privacy panel - Remote content and cookie settings in Thunderbird

How to replace Google Assistant with a Firefox search

Facebook Container isn't working

Block cookies in Firefox Focus for Android

Customize Firefox using policies.json

Change themes in Firefox for iOS

Firefox starts automatically when I restart Windows

Feed reader replacements for Firefox

Firefox Focus main Menu

How to use collections on addons.mozilla.org

Debugging policy issues

Search suggestions in Firefox Focus for iOS

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

Manage policies on macOS desktops

Disable high contrast mode in Firefox

Privacy settings in Firefox for Enterprise

Enforce 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

Will policies I set work if users already installed Firefox?

Make Firefox for Enterprise the default browser

Legacy browser support extension for Windows

Collections in Firefox

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

Customize Firefox on macOS using configuration profiles

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

Using Dark Theme in Firefox for iOS

My privacy settings were changed from Custom to Standard

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

Tab context menu

Auto-close open tabs in Firefox for Android

End of support for Adobe Flash

Mozilla Voice Server Proxy Retiring

Unable to uninstall add-ons (extensions or themes)

Text Encoding no longer available in the Firefox menu panel

Automatically fill in credit card information on Firefox for Android

OpenPGP Recipient Alias Configuration

Set Firefox as your default browser from the notification panel on Android

Exclude applications from Mozilla VPN protection

Set Firefox Focus as the default browser for iOS

View recently saved bookmarks from your homepage on Firefox for iOS

Change your theme in Firefox Focus for iOS

Personalize Firefox with colorways

The language of the websites I visit changes when I turn Mozilla VPN on - What to do

View articles recommended by Pocket on your Firefox for iOS homepage

Choose your opening screen for Firefox for iOS

Add a search engine to Firefox klar for Android

Remove a search engine in Firefox Klar for Android

Autocomplete settings in the Firefox Klar address bar

How to move the address bar in Firefox for iOS

Receive only important emails sent through your masks with Firefox Relay Premium

Change site permissions in Firefox Klar for Android

Automatically fill in your address on web forms in Firefox for Android

Manage your Mozilla account newsletter and email preferences

Mozilla VPN message center

How to disable the Firefox Relay autofill icon on online fields and websites

What should I do if I'm redirected to the Firefox Relay FAQ when clicking a link within an email?

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