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 and how to fix this problem. firefox3.6.6 TypeError: Components.classes[cid] is undefined

  • 1 resposta
  • 27 have this problem
  • 5 views
  • Last reply by xr417

more options

When I open Firefox I get this message.

       TypeError: Components.classes[cid] is undefined 

Why is this happening and how do I correct it?

When I open Firefox I get this message. '''TypeError: Components.classes[cid] is undefined ''' Why is this happening and how do I correct it?

All Replies (1)

more options

xr417 modificouno o