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

Am not able to install any add-ons in Firefox 11 and the suggested fixes here don't seem to work. Any suggestions?

  • 2 பதிலளிப்புகள்
  • 11 இந்த பிரச்னைகள் உள்ளது
  • 1 view
  • Last reply by cor-el

Installed Firefox 11 and no add-ons display. Tried to install Autofill Forms and I get the message "There was an error installing AutoFill Forms. Try Again" Same for any other add-on. Also running Norton 360V6 and can't even see Norton Toolbar. Have uninstalled and reinstalled both Firefox and 360 (the latter using Norton Removal Tool). Do not have this problem with Internet Explorer or with Firefox 11 on my other computers. Just this one. Plugins from an earlier version of Firefox show up, but not any Add-Ons.

Installed Firefox 11 and no add-ons display. Tried to install Autofill Forms and I get the message "There was an error installing AutoFill Forms. Try Again" Same for any other add-on. Also running Norton 360V6 and can't even see Norton Toolbar. Have uninstalled and reinstalled both Firefox and 360 (the latter using Norton Removal Tool). Do not have this problem with Internet Explorer or with Firefox 11 on my other computers. Just this one. Plugins from an earlier version of Firefox show up, but not any Add-Ons.

தீர்வு தேர்ந்தெடுக்கப்பட்டது

It is possible that there is a problem with the file(s) that store the extensions registry.

Delete the files extensions.* (e.g. extensions.sqlite, extensions.ini, extensions.cache) and compatibility.ini in the Firefox profile folder to reset the extensions registry.

New files will be created when required.

See "Corrupt extension files":

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 a compatibility update available.

Read this answer in context 👍 1

All Replies (2)

Maybe try the Troubleshoot and diagnose Firefox problems article first?

தீர்வு தேர்ந்தெடுக்கப்பட்டது

It is possible that there is a problem with the file(s) that store the extensions registry.

Delete the files extensions.* (e.g. extensions.sqlite, extensions.ini, extensions.cache) and compatibility.ini in the Firefox profile folder to reset the extensions registry.

New files will be created when required.

See "Corrupt extension files":

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 a compatibility update available.