Settings

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

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About Add-on Badges

Pop-up blocker settings, exceptions and troubleshooting

Access AI chatbots in Firefox

Block generative AI features with Firefox AI controls

Web Push notifications in Firefox

Global Privacy Control

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

How to manage your camera and microphone permissions with Firefox

View site information with Page Info

Sponsors on the home page and New Tab page

Firefox translation for Android

Firefox Password Manager - Alerts for breached websites

Control AI features in Firefox for Android

Manage marketing data settings in Firefox for Android

Allow or block media autoplay in Firefox

Thunderbird and Junk / Spam Messages

JavaScript settings and preferences for interactive web pages

Compacting folders

Recommendations from Firefox

Firefox Translations

Manage my default search engines in Firefox for Android

Manually back up and restore Firefox profile data

How to set up Firefox Sync in Firefox for Android

Make Firefox your default browser

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

Watch DRM content on Firefox

Import settings and data into Thunderbird

Control AI features in Firefox for iOS

Find and install extensions on Firefox for Android

Recover lost or missing Bookmarks

Multi-Account Containers

Signatures

Import data from another browser

Quick actions in the Firefox search bar

Extension data collection

Firefox settings, preferences and other options

Automatically fill in your address on web forms

Add-ons in Firefox for iOS

How to change the Thunderbird layout

How to disable the Enterprise Roots preference

Profile Manager - Create and remove Thunderbird profiles

Use Firefox in Full Screen mode

Connection settings in Firefox

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

Thunderbird add-ons - frequently asked questions

Add alt text to images in your PDFs using Firefox

Use the sidebar to access tools and vertical tabs

Manage Enhanced Tracking Protection exceptions

Restore bookmarks from backup or move them to another computer

Customize items on your Firefox New Tab page

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

Gmail and Thunderbird for Android

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

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

OAuth2 Authentication for Yahoo, AOL and ATT

Message threading in Thunderbird - keep messages grouped by conversation

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

Control audio or video playback with your keyboard

Get started with Thunderbird

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

Use multiple profiles in Thunderbird

Display the Thunderbird menus and toolbar

How to opt out of studies on Firefox for Android

Customize Date and Time formats in Thunderbird

How to set the home page

FAQ Changing IMAP to POP

Add a search engine to Firefox Focus for Android

Import login and password data from a file

HTTPS-Only Mode in Firefox Focus for Android

Configure push email for Thunderbird for Android

IMAP Synchronization

Installing an Add-on in Thunderbird

Site Permission Add-ons

Use bookmark folders to organize your bookmarks

Control whether Firefox automatically fills in forms

Reset Firefox preferences to troubleshoot and fix problems

Configuration Options for Accounts

Scan QR codes in Firefox for Android

Manage saved passwords in Firefox for iOS

Manage Firefox updates

Dedicated profiles per Firefox installation

Collections in Firefox

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

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

Choose your preferred PDF viewer in Firefox

Change the fonts and colors websites use

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

Cannot remove an add-on (extension or theme)

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

Audio and video files in Firefox

Switch from POP to IMAP account

Customize Firefox Home on iOS

Voice input in Firefox for Android

Switch from Chrome to Firefox

Protect your container tabs with Mozilla VPN

Automatically fill in credit card information on Firefox for Android

Global Privacy Control in Firefox for Android

Change your default browser

Close to tray starting in 154

Import bookmarks and other data from Google Chrome

Import Bookmarks from an HTML file

How do I use the Firefox spell checker?

Customize Firefox controls, buttons and toolbars

How to disable or change the Thunderbird start page

Thunderbird makes unrequested connections

Config Editor

Add or remove a search engine in Firefox

Enable or disable search engines on Firefox for iOS

Customize the Firefox home screen

Set Firefox as the default browser for iOS

Set Firefox Focus as default browser on Android

An extension changed my New Tab page or home page

Customize Firefox using AutoConfig

Customize Firefox using Group Policy (Windows)

Customize Firefox using policies.json

Access hidden tabs in Firefox

The difference between IMAP and POP3

Firefox starts automatically when I restart Windows

Feed reader replacements for Firefox

Change your two-step authentication device for your Mozilla account

About Picture-in-Picture in Firefox

Manage Firefox with Microsoft Endpoint Manager (Intune)

Manage notifications in Firefox for Android

Set Firefox for Android to open links in native apps

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

Recommended Firefox privacy and security settings for families

X-Mouse Button Control in Firefox 110

How do I change my DNS settings?

Thunderbird Matrix Chat FAQ

Firefox Suggest for Mobile

Thunderbird Mobile Telemetry

Getting started with Thunderbird for Android

Block and unblock websites with parental controls on Firefox

Import Bookmarks and other data from Microsoft Edge

Manage file types and download actions in Firefox

Export bookmarks to Safari

Font size and zoom - increase the size of web pages

Using Dark Theme in Firefox for Android

Message List Columns

How to Customize Toolbars

How to reset the default user agent on Firefox

Uninstall Firefox for Android extensions

Change the default language on Firefox for iOS

Set a homepage in Firefox for iOS

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

Autocomplete settings in the Firefox Focus address bar

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

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

How is Facebook Container different from Multi-account Containers?

Change themes in Firefox for iOS

Firefox Focus main Menu

Add trusted websites to your allow list in Firefox Focus

Choose display languages for multilingual web pages

Getting started with the Thunderbird main window

Set up Certificate Authorities (CAs) in Firefox

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

Firefox for Enterprise Kiosk mode

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

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

Add a Firefox widget to your Home screen

How to opt out of studies on Firefox for iOS

Exclude applications from Mozilla VPN protection

View recently saved bookmarks from your homepage on Firefox for iOS

Change website appearance settings in Firefox

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

Upgrading from an older version of Thunderbird

How do I change my Privacy features?

Turn off ads on MDN Plus

What languages is Mozilla VPN available in?

Open Firefox automatically when you start your computer

Block links from opening in external apps

Multiwindow support on iPad for Firefox

Disable Mozilla VPN protection for a specific website

Change your location for a specific website

A program on your computer interferes with the Mozilla VPN extension

Customize your Firefox app icon on iOS

New in Thunderbird for Android

Translate webpages in Firefox for iOS

Customize keyboard shortcuts in Firefox

Install the Thunderbird Pro Add-on in Thunderbird Desktop

Thunderbird for Desktop and Thundermail

Getting Started with Thunderbird Pro

Harmful add-on protection

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

Restore the default Smart Bookmarks Folders

How to fix preferences that won't save

Changes to toolbars and window sizes are not saved

Usernames and passwords are not saved

Change the program used to open email links

Firefox doesn't save web form entries

Tab preferences and settings

How do I restore my tabs from last time?

Restore the Menu bar in Firefox

Refresh Firefox - reset add-ons and settings

Change the default language of Firefox for Android

Share data with Mozilla to help improve Firefox

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

Closing multiple Tabs - option to disable warning

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

Thunderbird and Gmail

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

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

Filelink for Large Attachments

How to Customize the New Mail Sound

How to Subscribe to News Feeds and Blogs

Instant Messaging and Chat

Installing and Using another Language in the Dictionary

Use Firefox in another language

Get help with Firefox Developer Edition

Maildir in Thunderbird

Make Firefox your default browser on Windows

Thunderbird and Logjam

Customize your New Tab page to hide or display content

Manage saved passwords in Firefox for Android

Manage Firefox search settings

Save passwords in Firefox for Android

Access your add-ons with a Mozilla account

Add Firefox to the Today view on your iOS device

Re-enable multi-process support disabled by Windows utilities

Change the default email program in Firefox for iOS

Firefox's performance settings

Manage local site storage settings

Built-in themes in Firefox - alternative to complete themes

Add the Search bar to your Firefox toolbar

Turn search suggestions on or off on Firefox for iOS

New Tab settings in Firefox for iOS

Remove a search engine in Firefox Focus for Android

Add search engines in Firefox Focus for iOS

Print simplified, clutter-free pages in Firefox

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

Tips for assessing the safety of an extension

Privacy panel - Remote content and cookie settings in Thunderbird

How to add the translate add-on to Firefox

How to replace Google Assistant with a Firefox search

Facebook Container isn't working

Block cookies in Firefox Focus for Android

How to use collections on addons.mozilla.org

Install themes to change the look of Thunderbird

Debugging policy issues

Search suggestions in Firefox Focus for iOS

Personalized extension recommendations

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

Assign shortcuts to search engines

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

Manage extension shortcuts in Firefox

Will policies I set work if users already installed Firefox?

Make Firefox for Enterprise the default browser

Legacy browser support extension for Windows

Review installed extensions

Turn picture-in-picture mode controls on and off

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

Dangerous directories

Playing videos in Firefox for Android

Customize Firefox on macOS using configuration profiles

Using Dark Theme in Firefox for iOS

My privacy settings were changed from Custom to Standard

Importing Safari data into Firefox

Tab context menu

Turn push notifications on or off in Firefox for iOS

Grant camera access to Firefox for Android

Use Web Apps with Firefox for Android

Auto-close open tabs in Firefox for Android

End of support for Adobe Flash

Manage optional permissions for Firefox extensions

Remove the Other Bookmarks folder from the Bookmarks Toolbar

Mozilla Voice Server Proxy Retiring

View and control data collected by Mozilla VPN

Unable to uninstall add-ons (extensions or themes)

Enable Compact mode in Firefox

Text Encoding no longer available in the Firefox menu panel

OpenPGP Recipient Alias Configuration

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

How to configure Close Tab warnings in Firefox

How to restore a browsing session from backup

Set Firefox Focus as the default browser for iOS

View bookmarks on your home screen

Change your theme in Firefox Focus for Android

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

Install the Firefox Relay extension on Firefox for desktop

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 file downloads are handled in Firefox

My default search engine changed after updating Firefox

How to move the address bar in Firefox for iOS

Change your wallpaper in Firefox for iOS

Change your wallpaper in Firefox for Android

Enable light or dark mode in MDN

Change site permissions in Firefox Focus for Android

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

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

Mozilla VPN message center

Manage your extensions using the extensions button in the toolbar

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

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