Extend Firefox with add-ons to add new features. Learn about the different types available and how to find and install them.
How to display Firefox in a different language.
Facebook Container is an add-on that you can install on Firefox to prevent Facebook from tracking your activity on other websites.
A theme is a type of add-on which changes the visual appearance of Firefox. Learn how to find, install, and manage themes in Firefox.
Extensions, themes and plugins are all types of add-ons for Firefox. This article describes how to disable and remove add-ons in Firefox.
Many websites require the Adobe Flash Player plugin to display videos and games. Learn how to install the Flash plugin for Firefox.
This article explains how to update your Firefox add-ons from the Extensions panel in the Add-ons Manager.
This article describes how to add a page translator feature to Firefox with add-ons.
Firefox automatically blocks the Flash plugin on some websites that may cause problems but you have the option to turn this block on or off.
Firefox comes with the OpenH264 add-on to support WebRTC or video communication.
Reviewing the extensions you have installed periodically can make it harder for malicious extensions to put your security and privacy at risk.
Learn how you can manage optional permissions for extensions in the Firefox Add-ons Manager.
Firefox runs plugins, like Adobe Flash, in a "plugin-container" to prevent Firefox from crashing. Learn more about how this works.
The Adobe Flash plugin lets you view video and animated content in Firefox. Learn how to install and update Flash and fix problems with it.