How to Uninstall an addon in Firefox

September 17, 2007 at 8:23 am 24 comments

Firefox extensionsQuestion: How do I uninstall an add-on in Firefox?

Answer: You can uninstall an add-on in Firefox by doing the following:

1) Click on ‘Tools‘ located in the top menu bar of Firefox.
2) In the drop-down menu, click ‘Add-on‘.
3) In the small pop-up window, click on the add-on on you want to uninstall and then click on the ‘Uninstall‘ button.

Note: You will need to restart Firefox to complete the process. (if you just want to pause/stop the add-on for a while, please click on ‘Disable‘ rather than ‘Uninstall’.


Entry filed under: add-ons, Firefox, Tune up, web browser.

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24 Comments Add your own

  • 1. Hmmm...  |  November 15, 2007 at 6:13 pm

    And what if the add-on grays-out the Uninstall button so you can’t click it (disabled or not)?? For instance, RealPlayer Browser Record Plugin. The bastards..

  • 2. 88michael  |  November 16, 2007 at 11:48 pm

    If the Uninstall button grays out, then it is just one of those worst scenarios. There should be a way to manually delete the plugin via Windows Explorer or you can reinstall Firefox. I will update the post.

  • 3. Victor  |  November 22, 2007 at 9:51 pm

    Hi, i have a problem with extensions…
    I have installed a “java2script library” add-on and now i can`t uninstall it, it always returns back when i restart Firefox…
    Can anyone help me with this ? Can it be deleted manually ?

  • 4. 88michael  |  November 23, 2007 at 10:20 am

    You could first try to uninstall the addon in Firefox Safe Mode. I previously had your problem and I managed to uninstall it in safe mode. Also, before doing this, please make sure that you restart Firefox (don’t click the cancel button of your Addons pop-up window) exit it by clicking on the X – how you normally close a window.

    If this problem still occurs, please let me know and I will help you to uninstall it manually or another and probably the best is to reinstall firefox.

    • 5. Helene  |  June 23, 2009 at 8:44 am

      HELP!!!! I have done it all – spent the entire weekend. If I reinstall Firefox will I lose my bookmarks? what a mess!

      • 6. 88michael  |  June 25, 2009 at 10:21 am

        @Helene – Firefox managed to restore all my bookmarks when I reinstalled. But to me sure, export your bookmarks (using the built in exporting tool in Firefox bookmarks). And import those bookmarks when you reinstall Firefox (using the built in importing tool in Firefox bookmarks). If Firefox managed to restore your bookmarks automatically then you won’t need to import.

  • 7. Matthew  |  December 18, 2007 at 2:57 pm

    This doesn’t work with the abysmal ThinkVantage Password Manager Firefox add-on. It’s a bit of cruft Leveno Thinkpad owners find forced upon them if they install Firefox before uninstalling all the Leveno related “Password manager” and “Security Center” crap. It’s installed in Firefox and whole you can “disable” it there’s no uninstall button. Apparently leveno engineers didn’t think Firefox users should have the option to unistal their garbage.

  • […] And click Continue in Safe Mode, your FireFox browser should be opened again. Now you can proceed to the normal procedure of "disable add-ons in FireFox" (the following steps copied from How to Uninstall an addon in Firefox) […]

  • 9. Kathy Triggs  |  September 7, 2008 at 3:47 pm

    I have a brand new macbook – cannot uninstall split browser which I hate.

  • 10. 88michael  |  September 10, 2008 at 6:55 am

    @Kathy Triggs Best solution is to reinstall Firefox.

  • 11. hm  |  September 24, 2008 at 5:48 pm

    same here, I wish I could uninstall the Lenovo Thingvantage Password manager as well… I already uninstalled the whole crap from system, but it still “stays” in mozilla firefox….

  • 12. hm  |  September 24, 2008 at 6:12 pm

    for matthew – here you have the solution how to uninstall the ThinkVantage Password Manager from Firefox –

  • 13. 88michael  |  September 28, 2008 at 11:37 am

    @hm – Thanks for the link 🙂

    Have you tried manually deleting the addon files?

  • 14. Ann  |  March 11, 2009 at 6:03 pm

    Hello, I am trying to remove specific extensions in a silent manor. Does anyone know how to do this?

    • 15. 88michael  |  March 13, 2009 at 8:08 am

      @Ann – What do you mean ‘in a silent manor’?

  • 16. Anthony  |  March 21, 2009 at 10:24 am

    I’ve installed many add-ons with my firefox, but I couldn’t uninstall some of them which are unusable for me, how could I uninstall them ? (there is no point to enable or uninstall in add-ons), I could’nt either run from firefox -safe-mode …, thanks 4 anybody help

  • 17. 88michael  |  March 30, 2009 at 5:49 am

    @Anthony – What do you by unusable for you? Installing too many addons is not a good idea. The best way to solve these issues is to reinstall the browser.

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