Disable or remove Add-ons
Extensions and themes are types of add-ons for Firefox. This article describes how to disable and remove add-ons in Firefox.
Last updated: 01/23/2023
Find and install add-ons to add features to Firefox
You can install different types of add-ons, such as extensions to add features to Firefox and themes to change its appearance. Learn more.
Last updated: 11/22/2022
Manage optional permissions for Firefox extensions
Learn how you can manage optional permissions for extensions in the Firefox Add-ons Manager.
Last updated: 03/30/2024
Use Firefox in another language
How to display Firefox in a different language.
Last updated: 01/08/2023
Use themes to change the look of Firefox
A theme is a type of add-on that changes the visual appearance of Firefox. Learn how to find, install, and manage themes in Firefox.
Last updated: 12/04/2023
Facebook Container - Prevent Facebook from tracking you on other websites
Facebook Container is an add-on that you can install on Firefox to prevent Facebook from tracking your activity on other websites.
Last updated: 07/09/2022
Why do Java, Silverlight, Adobe Acrobat and other plugins no longer work?
Since the release of Firefox version 52 in March 2017, NPAPI plugins no longer load, except for Adobe Flash. Learn more about this change.
Last updated: 11/16/2020
How to add the translate add-on to Firefox
Seamlessly translate webpages in Firefox.
Last updated: 02/16/2024
Why is there an OpenH264 plugin in Firefox?
Firefox comes with the OpenH264 add-on to support WebRTC or video communication.
Last updated: 11/16/2020
How to update add-ons
This article explains how to update your Firefox add-ons from the Extensions panel in the Add-ons Manager.
Last updated: 07/25/2019
Flash-based videos and sound do not play correctly
Just a redirect.
Created: 12/14/2011
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.
Last updated: 07/01/2019
Firefox Translations Add-on
Translate web pages in Firefox when you visit a site that's in another language, without using the cloud.
Last updated: 02/16/2024
Why aren’t my add-ons working on some websites?
Learn why some Firefox extensions have been disabled on certain websites, how to manage these limits, and explore alternative solutions.
Last updated: 07/09/2023
