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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.

How to disable extensions and themes

Disabling an extension or theme will turn it off without removing it:

  1. Click the menu button New Fx Menu and choose Add-ons. The Add-ons Manager tab will open.

  2. In the Add-ons Manager tab, select the Extensions or Appearance panel.
  3. Select the add-on you wish to disable.
  4. Click its Disable button.
  5. Click Restart now if it pops up. Your tabs will be saved and restored after the restart.

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

How to disable plugins

Support will end for all NPAPI plugins except for Flash in March 2017, when Firefox version 52 is released. See this compatibility document and this article for details.

Beginning with Firefox version 52, support has ended for all NPAPI plugins except for Adobe Flash. See this compatibility document and this article for details.

Disabling a plugin will turn it off without removing it:

  1. Click the menu button New Fx Menu and choose Add-ons. The Add-ons Manager tab will open.

  2. In the Add-ons Manager tab, select the Plugins panel.
  3. Select the plugin you wish to disable.
  4. Select Never Activate in its drop-down menu.

To re-enable the plugin, find it in the list of Plugins and select Always Activate in its drop-down menu.

How to remove extensions and themes

  1. Click the menu button New Fx Menu and choose Add-ons. The Add-ons Manager tab will open.

  2. In the Add-ons Manager tab, select the Extensions or Appearance panel.
  3. Select the add-on you wish to remove.
  4. Click the Remove button.
  5. Click Restart now if it pops up. Your tabs will be saved and restored after the restart.

How to uninstall 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.

Troubleshooting

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Comments

For related discussion about this article, see:

/forums/knowledge-base-articles/706357

I replaced the way to open the AOM, fixed a broken link, make screenshots only for fx35, added a summary and keywords. It needs review.

Michael Verdi made a small edit to your revision and approved it:

Revision id: 16726
Created: Aug 26, 2011 2:45:49 PM
Creator: Verdi
Reviewed: Yes
Ready for localization: No
Reviewed: Aug 26, 2011 2:46:17 PM
Reviewed by: Verdi
Is approved? Yes
Is current revision? Yes
Cheilith

Hello,

The existing article is as follows: How to disable extensions and themes

Disabling an extension or theme will turn it off without removing it:

   "At the top of the Firefox window, click on the Firefox button, and then click Add-ons. The Add-ons Manager tab will open."

There isn't a Firefox button. The current procedure is: 1. Click on Help In the Menus toolbar (at the top) 2. In the drop-down menu click on Restart Firefox with Add-ons Disabled...

EOF

Hi!

That instruction is listed for Windows 7/Vista as most Firefox browsers installed on that OS has the Firefox button. If you are using Windows XP, Mac or Linux, you will see the instructions to use Tools to get the add-ons manager.