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.

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

add-ons fail to install even after browser restart

  • 4 replies
  • 10 have this problem
  • 2 views
  • Last reply by sash

sash
sash
more options

Add-ons like NoScript fail to install even after restarting the browser. Everytime I open the add-ons tab I get a message to restart firefox but subsequent restarts results in no effect. Please assist.

Add-ons like NoScript fail to install even after restarting the browser. Everytime I open the add-ons tab I get a message to restart firefox but subsequent restarts results in no effect. Please assist.

All Replies (4)

the-edmeister
the-edmeister
  • Moderator
more options

Try resetting the Extension Manager. With Firefox closed, delete the following files in your Profile folder':
extensions.cache
extensions.ini
extensions.rdf
and
compatibility.ini
They'll be re-created when you open Firefox.

Making sure Firefox closed:
http://kb.mozillazine.org/Kill_application

Profile location:
http://kb.mozillazine.org/Profile_folder

You may need to show hidden files to locate your profile (W2K & WinXP):
http://www.microsoft.com/windowsxp/us.../hiddenfiles.mspx

sash
sash Question owner
more options

Hello Sir, thank you for your response. I tried the instructions provided but the issue still exists.

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

You can also try "Reset all user preferences to Firefox defaults" on the Safe mode start window.

If you see disabled, not compatible, extensions in "Tools > Add-ons > Extensions" then click the "Find Updates" button (in Firefox 4: right-click the extension -> "Find Updates") to do a compatibility check.

sash
sash Question owner
more options

It's definitely compatible, it's strange that everytime I click on "Tools > Add-ons > Extensions", I get a message bar on top saying "Restart Firefox to complete your changes" and it keeps prompting me even if I restart 10 times...