Plugins are Firefox add-ons that manage Internet content that Firefox is not designed to process. This article describes how to use and manage plugins in Firefox.
A plugin is a piece of software that manages Internet content that Firefox is not designed to process. These usually include patented formats for video, audio, online games, presentations, and more. Plugins are created and distributed by other companies.
For instructions of how to install, use, and troubleshoot plugins in Firefox, see these articles:
Plugins involve using code written by third-parties, so it is critically important to keep your plugins up-to-date. A security vulnerability in a plugin you have installed could compromise your privacy.
To check if any of your installed plugins are out of date, visit Mozilla's Plugin Check & Updates page.
To see what plugins you have installed:
Click the menu button and choose Add-ons. The Add-ons Manager tab will open.
To disable a plugin, select a plugin in the list, then select Never Activate. Disabling a plugin will turn it off without uninstalling it. To re-enable it, select Always Activate.
If you have problems with Firefox, they may be caused by a plugin or combination of plugins. For help on how to diagnose plugin problems, see Troubleshoot issues with plugins like Flash or Java to fix common Firefox problems.