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Make Firefox your default browser on Windows

Firefox settings, preferences and other options

View site information with Page Info

Thunderbird and Junk / Spam Messages

Web Push notifications in Firefox

Access AI chatbots in Firefox

Manage local site storage settings

Firefox Password Manager - Alerts for breached websites

Manage marketing data settings in Firefox for Android

Customize Firefox controls, buttons and toolbars

Watch DRM content on Firefox

Compacting folders

Make Firefox your default browser

Refresh Firefox - reset add-ons and settings

Import data from another browser

Firefox translations

Sponsors on the home page and New Tab page

Control AI features in Firefox for Android

Global Privacy Control

Pop-up blocker settings, exceptions and troubleshooting

JavaScript settings and preferences for interactive web pages

Block generative AI features with Firefox AI controls

How to manage your camera and microphone permissions with Firefox

Firefox translation for Android

How to set up Firefox Sync in Firefox for Android

Manage my default search engines in Firefox for Android

Connection settings in Firefox

Recover lost or missing Bookmarks

Allow or block media autoplay in Firefox

Automatically fill in your address on web forms

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

Quick actions in the Firefox search bar

Restore bookmarks from backup or move them to another computer

Personalized extension recommendations

Manually back up and restore Firefox profile data

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

Filelink for Large Attachments

Firefox's performance settings

Find and install extensions on Firefox for Android

Signatures

Control AI features in Firefox for iOS

How to set the home page

Restore the Menu bar in Firefox

Customize items on your Firefox New Tab page

Switch from Chrome to Firefox

How do I use the Firefox spell checker?

Import settings and data into Thunderbird

Multi-Account Containers

Import bookmarks and other data from Google Chrome

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

Extension data collection

Font size and zoom - increase the size of web pages

Gmail and Thunderbird for Android

Manage Firefox search settings

Choose your preferred PDF viewer in Firefox

Reset Firefox preferences to troubleshoot and fix problems

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

Add-ons in Firefox for iOS

An extension changed my New Tab page or home page

Profile Manager - Create and remove Thunderbird profiles

How to opt out of studies on Firefox for Android

Enable Compact mode in Firefox

Get started with the Mozilla VPN extension

Control whether Firefox automatically fills in forms

Import login and password data from a file

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

Customize keyboard shortcuts in Firefox

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

How do I restore my tabs from last time?

Thunderbird and Gmail

Recommendations from Firefox

Use Firefox in Full Screen mode

Thunderbird add-ons - frequently asked questions

Message threading in Thunderbird - keep messages grouped by conversation

How to change the Thunderbird layout

Manage optional permissions for Firefox extensions

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

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

Manage Enhanced Tracking Protection exceptions

Cannot remove an add-on (extension or theme)

Usernames and passwords are not saved

Thunderbird and Microsoft email (Office365, Hotmail, outlook.com, etc)

How to disable the Enterprise Roots preference

Turn picture-in-picture mode controls on and off

Customize Date and Time formats in Thunderbird

Add alt text to images in your PDFs using Firefox

Configure push email for Thunderbird for Android

Manage file types and download actions in Firefox

Use Firefox in another language

Add a search engine to Firefox Focus for Android

Set Firefox for Android to open links in native apps

Import settings and data into Thunderbird for Android

Import Bookmarks from an HTML file

Use multiple profiles in Thunderbird

Switch from POP to IMAP account

Tips for assessing the safety of an extension

Control audio or video playback with your keyboard

HTTPS-Only Mode in Firefox Focus for Android

Get started with Thunderbird

Use the sidebar to access tools and vertical tabs

Use bookmark folders to organize your bookmarks

Tab preferences and settings

IMAP Synchronization

Add the Search bar to your Firefox toolbar

Firefox starts automatically when I restart Windows

How to restore a browsing session from backup

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

Manage your extensions using the extensions button in the toolbar

Open Firefox automatically when you start your computer

Firefox Suggest for Mobile

Change your default browser

Change the fonts and colors websites use

Configuration Options for Accounts

Display the Thunderbird menus and toolbar

Customize the Firefox home screen

Scan QR codes in Firefox for Android

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

Dedicated profiles per Firefox installation

Manage Firefox with Microsoft Endpoint Manager (Intune)

Site Permission Add-ons

Thunderbird and Microsoft protocols (Exchange and Graph)

Using Dark Theme in Firefox for Android

FAQ Changing IMAP to POP

Thunderbird makes unrequested connections

Installing an Add-on in Thunderbird

Enable or disable search engines on Firefox for iOS

Customize Firefox Home on iOS

Voice input in Firefox for Android

Manage saved passwords in Firefox for iOS

Set Firefox Focus as default browser on Android

Privacy panel - Remote content and cookie settings in Thunderbird

Customize Firefox using Group Policy (Windows)

Protect your container tabs with Mozilla VPN

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

Importing Safari data into Firefox

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

Add a Firefox widget to your Home screen

OpenPGP Recipient Alias Configuration

How to configure Close Tab warnings in Firefox

Exclude applications from Mozilla VPN protection

Recommended Firefox privacy and security settings for families

Disable Mozilla VPN protection for a specific website

Thunderbird for Desktop and Thundermail

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

Import Bookmarks and other data from Microsoft Edge

Change the program used to open email links

Audio and video files in Firefox

OAuth2 Authentication for Yahoo, AOL and ATT

Config Editor

How to Subscribe to News Feeds and Blogs

How to reset the default user agent on Firefox

Maildir in Thunderbird

Manage saved passwords in Firefox for Android

Set Firefox as the default browser for iOS

Access your add-ons with a Mozilla account

The difference between IMAP and POP3

Choose display languages for multilingual web pages

Manage extension shortcuts in Firefox

About Picture-in-Picture in Firefox

My default search engine changed after updating Firefox

Change website appearance settings in Firefox

Manage your Mozilla account newsletter and email preferences

Upgrading from an older version of Thunderbird

How do I change my DNS settings?

Change your location for a specific website

Customize your Firefox app icon on iOS

Getting Started with Thunderbird Pro

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

Export bookmarks to Safari

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

How to disable or change the Thunderbird start page

Make Thunderbird the Default Mail Client

Message List Columns

Configuration Options for Identity

How to Customize Toolbars

Get help with Firefox Developer Edition

Uninstall Firefox for Android extensions

Add or remove a search engine in Firefox

Change the default language on Firefox for iOS

Autocomplete settings in the Firefox Focus address bar

Add search engines in Firefox Focus for iOS

Print simplified, clutter-free pages in Firefox

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

Change themes in Firefox for iOS

Feed reader replacements for Firefox

Install themes to change the look of Thunderbird

Search suggestions in Firefox Focus for iOS

Add trusted websites to your allow list in Firefox Focus

Manage Firefox updates

Getting started with the Thunderbird main window

Set up Certificate Authorities (CAs) in Firefox

Collections in Firefox

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

Change your two-step authentication device for your Mozilla account

Playing videos in Firefox for Android

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

Manage notifications in Firefox for Android

Use Web Apps with Firefox for Android

End of support for Adobe Flash

Text Encoding no longer available in the Firefox menu panel

Automatically fill in credit card information on Firefox for Android

View recently saved bookmarks from your homepage on Firefox for iOS

Change your theme in Firefox Focus for iOS

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

Choose your opening screen for Firefox for iOS

Change your wallpaper in Firefox for iOS

Enable light or dark mode in MDN

What languages is Mozilla VPN available in?

Thunderbird Matrix Chat FAQ

Getting started with Thunderbird for Android

A program on your computer interferes with the Mozilla VPN extension

Manage your Monitor notifications

On-device AI models in Firefox

Use Lockdown mode in Firefox Enterprise

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

Restore the default Smart Bookmarks Folders

Block and unblock websites with parental controls on Firefox

How to fix preferences that won't save

Changes to toolbars and window sizes are not saved

Firefox doesn't save web form entries

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

Creating a Newsgroup Account

Names but no Email Addresses are Displayed

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

How to Customize the New Mail Sound

Instant Messaging and Chat

Installing and Using another Language in the Dictionary

Thunderbird and Logjam

Customize your New Tab page to hide or display content

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

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

Built-in themes in Firefox - alternative to complete themes

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

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

Facebook Container isn't working

How is Facebook Container different from Multi-account Containers?

Block cookies in Firefox Focus for Android

Customize Firefox using AutoConfig

Customize Firefox using policies.json

Access hidden tabs in Firefox

Firefox Focus main Menu

How to use collections on addons.mozilla.org

Debugging policy issues

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

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

Dangerous directories

Customize Firefox on macOS using configuration profiles

Firefox for Enterprise Kiosk mode

Using Dark Theme in Firefox for iOS

My privacy settings were changed from Custom to Standard

Tab context menu

Turn push notifications on or off in Firefox for iOS

Grant camera access to Firefox for Android

Auto-close open tabs in Firefox for Android

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)

How to opt out of studies on Firefox for iOS

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

Set Firefox Focus as the default browser for iOS

View bookmarks on your home screen

Change your theme in Firefox Focus for Android

Personalize Firefox with colorways

Install the Firefox Relay extension on Firefox for desktop

View articles recommended by Pocket on your Firefox for iOS homepage

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

How to move the address bar in Firefox for iOS

Change your wallpaper in Firefox for Android

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

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

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

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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