Settings

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

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Make Firefox your default browser on Windows

Add-on Badges

Firefox options, preferences and settings

Firefox Page Info window

Thunderbird and Junk / Spam Messages

Connection settings in Firefox

Manage local site storage settings

Access AI chatbots in Firefox

Web Push notifications in Firefox

Use the sidebar to access tools and vertical tabs

Notifications in Thunderbird

Firefox Translation

Customize items on your Firefox New Tab page

Watch DRM content on Firefox

Firefox's performance settings

Personalized extension recommendations

Refresh Firefox - reset add-ons and settings

How to manage your camera and microphone permissions with Firefox

Make Firefox your default browser

Firefox Password Manager - Alerts for breached websites

Automatically fill in your address on web forms

Global Privacy Control

Pop-up blocker settings, exceptions and troubleshooting

Restore the Menu bar in Firefox

Multi-Account Containers

Back up and restore information in Firefox profiles

Import data from another browser

Filelink for Large Attachments

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

Change your default search settings in Firefox

Import bookmarks and other data from Google Chrome

Tips for assessing the safety of an extension

Firefox translation for Android

Turn picture-in-picture mode controls on and off

Use Firefox in another language

Recover lost or missing Bookmarks

Recommendations from Firefox

Manage my default search engines in Firefox for Android

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

Restore bookmarks from backup or move them to another computer

How to set the home page

Add-ons in Firefox for iOS

Message threading in Thunderbird - keep messages grouped by conversation

Allow or block media autoplay in Firefox

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

JavaScript settings and preferences for interactive web pages

Switch from Chrome to Firefox

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

How to set up Firefox Sync in Firefox for Android

Manage your extensions using the extensions button in the toolbar

Signatures

Import settings and data into Thunderbird

Thunderbird and Gmail

The difference between IMAP and POP3

Open Firefox automatically when you start your computer

Add the Search bar to your Firefox toolbar

Control audio or video playback with your keyboard

Legacy browser support extension for Windows

Use Firefox in Full Screen mode

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

Customize your wallpapers

Control whether Firefox automatically fills in forms

Customize Firefox controls, buttons and toolbars

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

Font size and zoom - increase the size of web pages

An extension changed my New Tab page or home page

Customize Date and Time formats in Thunderbird

How to disable the Enterprise Roots preference

Compact mode workaround in Firefox

How do I restore my tabs from last time?

Use multiple profiles in Thunderbird

Add or remove a search engine in Firefox

Manage optional permissions for Firefox extensions

About Picture-in-Picture in Firefox

Cannot remove an add-on (extension or theme)

Usernames and passwords are not saved

Disable or re-enable Pocket for Firefox

Configure push email for Thunderbird for Android

Gmail and Thunderbird for Android

Manage file types and download actions in Firefox

Get started with the Mozilla VPN extension

Installing an Add-on in Thunderbird

How to restore a browsing session from backup

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

Use bookmark folders to organize your bookmarks

Display the Thunderbird menus and toolbar

Add alt text to images in your PDFs using Firefox

Manage notifications in Firefox for Android

Dedicated profiles per Firefox installation

Get started with Thunderbird

Configuration Options for Accounts

How to change the Thunderbird layout

Change the fonts and colors websites use

FAQ Changing IMAP to POP

Thunderbird add-ons - frequently asked questions

Choose display languages for multilingual web pages

Manage extension shortcuts in Firefox

Import Bookmarks from an HTML file

Import Bookmarks and other data from Microsoft Edge

How do I use the Firefox spell checker?

Sync bookmarks, tabs, history and passwords on Android

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

Scan QR codes in Firefox for iOS

Change website appearance settings in Firefox

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

How do I change my DNS settings?

Choose your preferred PDF viewer in Firefox

Getting started with Thunderbird for Android

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

IMAP Synchronization

How to reset the default user agent on Firefox

Customize your New Tab page to hide or display content

Install themes to change the look of Thunderbird

Profile Manager - Create and remove Thunderbird profiles

HTTPS-Only Mode in Firefox Focus for Android

Change the program used to open email links

Export bookmarks to Safari

HTML5 audio and video in Firefox

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

Switch from POP to IMAP account

Scan QR codes in Firefox for Android

Set Firefox Focus as default browser on Android

Set Firefox for Android to open links in native apps

Manage marketing data settings in Firefox for Android

Reset Firefox preferences to troubleshoot and fix problems

Tab preferences and settings

How to disable or change the Thunderbird start page

Manage saved passwords in Firefox for iOS

Customize Firefox using policies.json

Protect your container tabs with Mozilla VPN

Collections in Firefox

Change your two-step authentication device for your Mozilla account

Importing Safari data into Firefox

Import login and password data from a file

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

Quick actions in the Firefox search bar

Find and install extensions on Firefox for Android

Make Thunderbird the Default Mail Client

Message List Columns

How to Subscribe to News Feeds and Blogs

Customize Firefox Home on iOS

Customize the Firefox home screen

Add search engines in Firefox Focus for iOS

Customize Firefox using Group Policy (Windows)

Firefox for Enterprise Kiosk mode

Firefox Suggest for Mobile

Thunderbird Android Telemetry

Import settings and data into Thunderbird for Android

New in Thunderbird for Android version 8

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

Block and unblock websites with parental controls on Firefox

Built-in themes in Firefox - alternative to complete themes

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

Manage Firefox updates

Hide Pocket in your Firefox New Tab page

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

Auto-close open tabs in Firefox for Android

End of support for Adobe Flash

OpenPGP Recipient Alias Configuration

How to move the search bar in Firefox for iOS

Change your wallpaper in Firefox for Android

Upgrading from an older version of Thunderbird

Block links from opening in external apps

Change your location for a specific website

A program on your computer interferes with the Mozilla VPN extension

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

Creating a Newsgroup Account

Thunderbird makes unrequested connections

Config Editor

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

How to Customize the New Mail Sound

Maildir in Thunderbird

Manage saved passwords in Firefox for Android

Voice input in Firefox for Android

Access your add-ons with a Mozilla account

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

Access hidden tabs in Firefox

Firefox starts automatically when I restart Windows

Feed reader replacements for Firefox

Assign shortcuts to search engines

Privacy settings in Firefox for Enterprise

Remove the Other Bookmarks folder from the Bookmarks Toolbar

What information does Mozilla VPN collect?

My default search engine changed after updating Firefox

Install the Firefox Relay extension on Google Chrome

Recommended Firefox privacy and security settings for families

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

How do I change my Privacy features?

Hide Pocket recommendations in Firefox

Install the Pocket extension in your browser

How to delete an email mask

Address autofill on Firefox

Disable VPN protection for a specific website

What to do if another extension interferes with the Mozilla VPN extension

Firefox doesn't save web form entries

How do I quit Firefox for Android?

How to Customize Toolbars

Add a search engine to Firefox Focus for Android

Print simplified, clutter-free pages in Firefox

Privacy panel - Remote content and cookie settings in Thunderbird

Facebook Container isn't working

Block cookies in Firefox Focus for Android

Customize Firefox using AutoConfig

Firefox Focus main Menu

How to use collections on addons.mozilla.org

Search suggestions in Firefox Focus for iOS

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

Add trusted websites to your allow list in Firefox Focus

Manage policies on macOS desktops

Getting started with the Thunderbird main window

Enforce policies on Firefox for Enterprise

See active policies on Firefox for Enterprise

Make Firefox for Enterprise the default browser

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

Review installed extensions

How to fix Pocket login issues

Playing videos in Firefox for Android

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

Manage Firefox with Microsoft Endpoint Manager (Intune)

Edit top sites on Firefox Lite home screen

Add a Firefox widget to your Home screen

Use Web Apps with Firefox for Android

Unable to uninstall add-ons (extensions or themes)

How to opt out of studies on Firefox for iOS

Automatically fill in credit card information on Firefox for Android

How to configure Close Tab warnings in Firefox

Exclude applications from Mozilla VPN protection

How file downloads are handled in Firefox

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

Enable light or dark mode in MDN

Site Permission Add-ons

X-Mouse Button Control in Firefox 110

Install the Firefox Relay extension in Firefox for Android

How to automatically label your new email masks

Why aren’t my add-ons working on some websites?

What languages is Mozilla VPN available in?

Autofill Credit Cards in Firefox for iOS

Thunderbird Matrix Chat FAQ

How will DNS work when using the VPN extension?

Manage your Monitor notifications

Restore the default Smart Bookmarks Folders

How to fix preferences that won't save

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

Compacting folders

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

Add Search Engine to Open Search

Instant Messaging and Chat

Installing and Using another Language in the Dictionary

Get help with Firefox Developer Edition

Uninstall Firefox for Android extensions

Thunderbird and Logjam

Enable or disable search engines on Firefox for iOS

Save passwords in Firefox for Android

Change the default language on Firefox for iOS

Set Firefox as the default browser for iOS

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 Lite as your default browser

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

Autocomplete settings in the Firefox Focus address bar

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

How to add the translate add-on to Firefox

How to replace Google Assistant with a Firefox search

Add shortcuts to websites on your home screen

How is Facebook Container different from Multi-account Containers?

Change themes in Firefox for iOS

Debugging policy issues

Change Firefox Lite to Night Mode

Disable high contrast mode in Firefox

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?

Set up Certificate Authorities (CAs) in Firefox

Enable auto-fill on your iPhone or iPad

Set Firefox as your default browser on Lockwise for iOS

Enable auto-fill on your Android devices

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

Dangerous directories

Customize Firefox on macOS using configuration profiles

Pocket sponsored stories on new tabs

Using Dark Theme in Firefox for iOS

My privacy settings were changed from Custom to Standard

Tab context menu

Change Firefox Lite themes

Firefox Lite enhanced search with Awesome bar

What's new in Firefox Lite (version 2.5)

Turn push notifications on or off in Firefox for iOS

Grant camera access to Firefox for Android

Mozilla Voice Server Proxy Retiring

Text Encoding no longer available in the Firefox menu panel

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

Set Firefox Focus as the default browser for iOS

View recently saved bookmarks from your homepage on Firefox for iOS

View bookmarks on your home screen

View articles recommended by Pocket on your Firefox for Android homepage

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

How to opt out of studies on Firefox Focus 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 opt out of studies on Firefox Focus for Android

Change your wallpaper in Firefox for iOS

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

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

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