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.
Manage credit card autofill settings in Firefox version 81 and above.
You can customize Firefox in many ways. This article explains how to customize Firefox controls, buttons and toolbars.
How to enable or block sites from accessing your camera and microphone on your desktop or mobile device.
This article describes the new extensions button and how to manage your extensions and their permissions directly from the Firefox toolbar.
Firefox prevents media from playing automatically on websites you visit, unless you grant permission. Learn more about this feature.
The Pocket feature is included with Firefox by default. Learn how to disable or remove Pocket from Firefox and how to re-enable it.
How to disable the Enterprise Roots preference to fix TLS connection errors caused by antivirus software, without compromising security.
Different Firefox installations now use a separate profile to store your bookmarks, passwords and other settings. Learn more.
This article explains how to block websites or filter website content in Firefox that may be offensive or inappropriate for children.
How to enable sync for logins and passwords on Firefox desktop
This article explains Firefox's virtual reality features and how to manage permissions for websites that ask to access your VR devices.
Manage your add-on shortcuts through the Manage Preferences menu in about:addons.
Snippets are brief messages from Firefox and Mozilla, displayed by default on the New Tab page in Firefox version 88 and below. Learn more.
When you open Firefox after reaching a certain user milestone, you’re shown a Firefox Browser welcome page in a new tab. Learn more.
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.
Sites can ask to install permission add-ons that modify Firefox’s default security behavior to give them extra privileges. Learn more.
Firefox can handle audio and video content on web pages and can open some media files. Learn about supported formats and managing playback.
If Firefox was open when Windows shut down, Firefox may reopen automatically the next time you start Windows. You can disable this feature.
Firefox's built-in support for web feeds and Live Bookmarks ended in December 2018 with version 64. Learn more and find alternatives.
How to disable high contrast mode if it's causing problems on some web pages.
Learn how you can manage optional permissions for extensions in the Firefox Add-ons Manager.
How to make Web links open in Firefox automatically by setting it as the default browser on your computer.
Reviewing the extensions you have installed periodically can make it harder for malicious extensions to put your security and privacy at risk.
If your Custom settings match the settings in Standard, you will be switched back to Standard. This will not affect your settings.
Enable Full Disk Access on macOS version 10.14 (Mojave) or higher, so that you can import data from your Safari browser into Firefox.
Learn more about this Firefox anti-snooping feature designed to protect your logins and passwords from unauthorized access.
Starting in Firefox version 78, the Tab context menu has been changed to add a new "Close Multiple Tabs" submenu.
Learn more about the discontinuation of Firefox Notes on November 1, 2020.
This article describes changes to how downloads are handled in Firefox 98 and above and answers some frequently asked questions.