Extensions and themes are types of add-ons for Firefox. This article explains how you can disable or remove these add-ons.

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.
   • The Add-ons Manager Manage Your Extensions page will open in a new tab.
2. Scroll through the list of extensions.
3. Click the blue toggle for the extension you wish to disable.

   

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.

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

Removing extensions

1. Click the menu button , click Add-ons and themes and select Extensions.
   • The Add-ons Manager Manage Your Extensions page will open in a new tab.
2. Scroll through the list of extensions.
3. Click the ellipsis (3-dot) icon for the extension you wish to remove and select Remove.

   

Disabling and removing themes

Firefox comes with a default System theme and optional Colorways, Light, Dark, and Alpenglow themes, but you can add new themes to Firefox. For additional information, see Use themes to change the look of Firefox.

Disabling themes

Click the menu button , click Add-ons and themes and select Themes.

• The Add-ons Manager Manage Your Themes page will open in a new tab.

You will see one Enabled theme and a list of DisabledSaved themes.

When the Enabled theme is not the default System theme, you can disable it by clicking Disable.

This will enable the System theme.

Removing themes

You cannot remove themes that come with Firefox ( Colorways, System, Light, Dark and Alpenglow themes) but you can remove themes you've added to Firefox. To remove an added theme:

1. Click the menu button , click Add-ons and themes and select Themes.
   • The Add-ons Manager Manage Your Themes page will open in a new tab.
2. Click the ellipsis (3-dot) icon that displays for the theme that you want to remove, and then select Remove.

   

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.
• See Troubleshooting add-ons for more help.