Customize controls, options and add-ons
Make Firefox yours by adding and managing the features that you want.
Firefox Page Info window
The Firefox “Page Info” window gives you details about the page you're on. You can also use it to change permissions for the website.
Automatically fill in credit card data on Web forms
Manage credit card autofill settings in Firefox version 81 and above.
Manage your extensions using the extensions button in the toolbar
This article describes the new extensions button and how to manage your extensions and their permissions directly from the Firefox toolbar.
Make Firefox your default browser
How to make Web links open in Firefox automatically by setting it as the default browser on your computer.
How to disable the Enterprise Roots preference
How to disable the Enterprise Roots preference to fix TLS connection errors caused by antivirus software, without compromising security.
Customize Firefox controls, buttons and toolbars
You can customize Firefox in many ways. This article explains how to customize Firefox controls, buttons and toolbars.
Allow or block media autoplay in Firefox
Firefox prevents media from playing automatically on websites you visit, unless you grant permission. Learn more about this feature.
Open Firefox automatically when you start your computer
Enable Firefox to launch automatically when Windows starts, providing quicker access to your browser and enhancing your browsing experience.
How to manage your camera and microphone permissions with Firefox
How to enable or block sites from accessing your camera and microphone on your desktop or mobile device.
Disable or re-enable Pocket for Firefox
The Pocket feature is included with Firefox by default. Learn how to disable or remove Pocket from Firefox and how to re-enable it.
About Picture-in-Picture in Firefox
The Picture-in-Picture feature allows you to pop videos out of their webpage, so you can watch while continuing to work in other tabs.
HTML5 audio and video in Firefox
Firefox can handle audio and video content on web pages and can open some media files. Learn about supported formats and managing playback.
Firefox starts automatically when I restart Windows
If Firefox was open when Windows shut down, Firefox may reopen automatically the next time you start Windows. You can disable this feature.
Sync logins in Firefox desktop
How to enable sync for logins and passwords on Firefox desktop
Dedicated profiles per Firefox installation
Different Firefox installations now use a separate profile to store your bookmarks, passwords and other settings. Learn more.
Firefox Browser welcome pages - helping you get more from Firefox products and services
When you open Firefox after reaching a certain user milestone, you’re shown a Firefox Browser welcome page in a new tab. Learn more.
Manage Optional Permissions for Extensions
Learn how you can manage optional permissions for extensions in the Firefox Add-ons Manager.
Block and unblock websites with parental controls on Firefox
This article explains how to block websites or filter website content in Firefox that may be offensive or inappropriate for children.
Feed reader replacements for Firefox
Firefox's built-in support for web feeds and Live Bookmarks ended in December 2018 with version 64. Learn more and find alternatives.
Manage extension shortcuts in Firefox
Manage your add-on shortcuts through the Manage Preferences menu in about:addons.
My privacy settings were changed from Custom to Standard
If your Custom settings match the settings in Standard, you will be switched back to Standard. This will not affect your settings.
WebXR Permission Info Page
This article explains Firefox's virtual reality features and how to manage permissions for websites that ask to access your VR devices.
Importing Safari data into Firefox
Import data from your Safari browser into Firefox. You must enable Full Disk Access on macOS version 10.14 (Mojave).
Disable high contrast mode in Firefox
How to disable high contrast mode if it's causing problems on some web pages.
Review installed extensions
Reviewing the extensions you have installed periodically can make it harder for malicious extensions to put your security and privacy at risk.
Snippets in Firefox FAQ
Snippets are brief messages from Firefox and Mozilla, displayed by default on the New Tab page in Firefox version 88 and below. Learn more.
Firefox asks for authentication (password, voice, face or fingerprint) when accessing passwords
Learn more about this Firefox anti-snooping feature designed to protect your logins and passwords from unauthorized access.
Firefox Notes status
Learn more about the discontinuation of Firefox Notes on November 1, 2020.
How file downloads are handled in Firefox version 98 and above
This article describes changes to how downloads are handled in Firefox 98 and above and answers some frequently asked questions.
Site Permission Add-ons
Sites can ask to install permission add-ons that modify Firefox’s default security behavior to give them extra privileges. Learn more.
