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.

I get a pop-up error message when I try to open Firefox

  • 1 reply
  • 1 has this problem
  • 3 views
  • Last reply by Hasan

Lumenpro
Lumenpro
more options

Whenever I try to open Firefox (latest version installed today), I get a pop-up error message that reads: TypeError: Componentsclasses['@mozilla.org/gmailnotifier;'] is undefined. When I click the OK button, Firefox opens and operates fine. How do I get rid of that?

Whenever I try to open Firefox (latest version installed today), I get a pop-up error message that reads: TypeError: Componentsclasses['@mozilla.org/gmailnotifier;'] is undefined. When I click the OK button, Firefox opens and operates fine. How do I get rid of that?

All Replies (1)

Hasan
Hasan
more options

Troubleshooting extensions and themes

Check and tell if its working.