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

Table Of Contents

• How to disable extensions and plugins
• How to uninstall extensions and themes
• How to uninstall plugins
• Troubleshooting

How to disable extensions and plugins

Disabling an add-on will turn it off without uninstalling it:

1. At the top of the Firefox windowOn the menu bar, click on the Tools menu and select Add-ons. The Add-ons window will appear.
2. In the Add-ons window, select the Extensions panel or Plugins panel.
3. Select the add-on you wish to disable.
4. Click the Disable button.
   
   
   
5. If prompted, click Restart Firefox to finish disabling the add-on.

To re-enable the add-on, find it in the list of Add-ons and click Enable, then restart Firefox.

How to uninstall extensions and themes

1. At the top of the Firefox windowOn the menu bar, click on the Tools menu and select Add-ons. The Add-ons window will appear.
2. In the Add-ons window, select the Extensions panel or Themes panel.
3. Select the add-on you wish to uninstall.
4. Click the Uninstall button. When prompted, click Uninstall to confirm.
   
   
   
5. If prompted, click Restart Firefox to finish uninstalling the add-on.

How to uninstall plugins

Most plugins come with their own uninstallation utilities. For help uninstalling a certain plugin, go to the list of plugins articles and select the article for the plugin you want to uninstall.

Troubleshooting

• For help diagnosing problems caused by extensions and themes, see Troubleshooting extensions and themes.
• For help diagnosing problems caused by plugins, see Troubleshooting plugins.
• If you are not able to uninstall an extension, see Cannot uninstall an add-on.
• If you are not able to uninstall a plugin, see Manually uninstalling a plugin.