Manage preferences and add-ons

Manage add-ons

Enhance Firefox's functionality and appearance with add-ons

Extensions in Private Browsing

You can set which Firefox extensions can run in private windows and which can't, when you install the extension or later on. Learn more.

Disable or remove Add-ons

Extensions, themes and plugins are all types of add-ons for Firefox. This article describes how to disable and remove add-ons in Firefox.

Add-on signing in Firefox

Learn about add-on signing and what to do if an extension you want to use could not be verified for use in Firefox.

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