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

If you are not able to remove an extension or theme, see Cannot remove an add-on (extension or theme).

Disabling and removing extensions

Disabling extensions

Disabling an extension will turn it off without removing it.

1. Click the menu button , click Add-ons and themes and select Extensions.
2. Scroll through the list of extensions.
3. Click the ellipsis (3-dot) icon for the corresponding extension and select Disable.the blue toggle for the corresponding toggle.

   

   

To re-enable the extension, find it in the list of extensions and click the toggle for the corresponding extension. The toggle turns blue when enabled. , click the ellipsis (3-dot) icon and select Enable (restart Firefox if required).

To disable extensions that have changed your New Tab, New Window or home page, see An extension changed my home page.

Removing extensions

1. Click the menu button , click Add-ons and themes and select Extensions.
2. Scroll through the list of extensions.
3. Click the ellipsis (3-dot) icon for the corresponding extension and select Remove.

   

   

Disabling and removing themes

For additional information about disabling and removing themes, see Use themes to change the look of Firefox.

Disabling plugins

Disabling a plugin will turn it off without removing it:

1. Click the menu button , click Add-ons and themes and select Plugins.
2. Scroll through the list of plugins.
3. Click the ellipsis (3-dot) icon and select Never Activate from the drop-down menu for the corresponding extension.

To re-enable the plugin, find it in the list of Plugins, click the ellipsis (3-dot) icon and select Always Activate or Ask to Activate in the drop-down menu.

Uninstalling plugins

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

• If you are not able to uninstall a plugin, see Manually uninstalling a plugin.

Troubleshooting

• If you are not able to remove an extension or a theme, see Cannot remove an add-on (extension or theme).
• For help diagnosing problems caused by extensions and themes, see Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems.
• For help diagnosing problems with the Flash plugin, see Flash Plugin - Keep it up to date and troubleshoot problems.

  See Troubleshooting add-ons for more help.