This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Why doesn't restarting FF4 remove extensions

  • 3 respostas
  • 4 have this problem
  • 4 views
  • Last reply by Darkness

more options

I want to remove an extension. So I open the Add-on manager and click remove. I'm told to restart firefox to remove them. I restart and what do you know they are still there. Can some one please tell me how I can forcibly remove them?

I want to remove an extension. So I open the Add-on manager and click remove. I'm told to restart firefox to remove them. I restart and what do you know they are still there. Can some one please tell me how I can forcibly remove them?

Darkness modificouno o

All Replies (3)

more options

Try disabling it first, then remove it.

What's it called?

more options

This can be a problem with the file(s) that store the extensions registry.

Delete the files extensions.* (extensions.sqlite, extensions.rdf, extensions.cache, extensions.ini) and compatibility.ini in the Firefox profile folder to reset the extensions registry. New files will be created when required.

See "Corrupt extension files": http://kb.mozillazine.org/Unable_to_install_themes_or_extensions

If you see disabled, not compatible, extensions in "Tools > Add-ons > Extensions" then click the Tools button at the left side of the Search Bar (or click the "Find Updates" button in older Firefox versions) to do a compatibility check or see if there is an update.


Extensions that are installed by other programs (Java, RealPlayer) need to be removed from the settings in those programs.

more options

Thank you I have noww removed most of the extensions and I am just left with an incompatible divx HQ 2.1.1.94 and Divx Plus Webplayer Html 5 2.1.1.94 that I can't seem to remove without completly uninstalling divx Plus, and I can't do that a I use it with Internet Explorer. Any sugestions?