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

Has anyone seen this before,what happened:TypeError: Components.classes['@mozilla.org/extensions/manager;1'] is undefined . This comes on my laptop when I turn it on. Does anybody know what it means? Please email me if you know what this means.

  • 3 respostas
  • 1 has this problem
  • 9 views
  • Last reply by Xircal

more options

what happened:TypeError: Components.classes['@mozilla.org/extensions/manager;1'] is undefined

what happened:TypeError: Components.classes['@mozilla.org/extensions/manager;1'] is undefined

Chosen solution

This is an indication that you have an add-on installed which is incompatible with Firefox 5.0.x

To determine which one it is start Firefox in Safe Mode. See this article which explains the procedure: http://kb.mozillazine.org/Safe_Mode

If you have the Ask Toolbar installed, remove it by clicking the orange Firefox button, go to Add-ons, then Extensions.


If this answers your question, please click the Solved it button next to this post after you log in into the forum. This will help others searching for a solution to the same subject.

Thanks.

Ler a resposta no contexto 👍 0

All Replies (3)

more options

Chosen Solution

This is an indication that you have an add-on installed which is incompatible with Firefox 5.0.x

To determine which one it is start Firefox in Safe Mode. See this article which explains the procedure: http://kb.mozillazine.org/Safe_Mode

If you have the Ask Toolbar installed, remove it by clicking the orange Firefox button, go to Add-ons, then Extensions.


If this answers your question, please click the Solved it button next to this post after you log in into the forum. This will help others searching for a solution to the same subject.

Thanks.

Xircal modificouno o

more options

Thanks so much Xircal. You solved my problem. Thanks again for the help.

more options

You're welcome.