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.
When you open the Firefox Browser after reaching a certain user milestone, you’re shown a Firefox Browser welcome page in a new tab.
Firefox is easy to customize. Put your favorite features right where you want them. We'll show you how.
Make web links open in Firefox automatically by setting it as the default browser on your computer. This article explains how to do that.
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.
Learn what information Firefox sends to web sites about your location and how to use and manage location-aware features of your browser.
How to enable sync for logins and passwords on Firefox desktop
Firefox prevents media from playing automatically on websites you visit, unless you grant permission. Learn more about this feature.
Since Firefox version 67, different Firefox installations have separate profiles. Learn more.
This article explains how to block websites or filter website content in Firefox that may be offensive or inappropriate for children.
Manage your add-on shortcuts through the Manage Preferences menu in about:addons.
How to disable high contrast mode if it's causing problems on some web pages.
How sandboxing affects Adobe Flash applets.
How to disable the Enterprise Roots preference to fix TLS connection errors caused by antivirus software, without compromising security.
If Firefox was open when Windows shut down, Firefox may reopen automatically the next time you start Windows. You can disable this feature.
If your Custom settings match the settings in Standard, you will be switched back to Standard. This will not affect your settings.
Firefox can play HTML5 audio and video content on web pages. Learn about the supported media formats and how to manage them.
Reviewing the extensions you have installed periodically can make it harder for malicious extensions to put your security and privacy at risk.
Firefox's built-in support for web feeds and Live Bookmarks ended in December 2018 with version 64. Learn more and find alternatives.
The Pocket feature is included with Firefox by default. Learn how to disable or remove Pocket from Firefox and how to re-enable it.
This article explains Firefox's virtual reality features and how to manage permissions for websites that ask to access your VR devices.
How to enable or block sites from accessing your camera and microphone on your desktop or mobile device.
Starting in Firefox version 78, the Tab context menu has been changed to add a new "Close Multiple Tabs" submenu.
Learn more about this anti-snooping feature designed to protect your logins from unauthorized access.
Learn how to enable and disable full disk access on macOS version 10.14 or higher, so that you import Safari browser data into Firefox.
Manage credit card autofill settings in Firefox version 81 and above.