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

Buscar en Ayuda

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

Este tema ha sido archivado. Haz una nueva pregunta si necesitas ayuda.

Firefox 4 JavaScritpt Error when I open it

  • 3 respuestas
  • 52 tienen este problema
  • 1 visita
  • Última respuesta de the-edmeister

frybart
frybart
more options

When I open Firefox 4.0

Javascript Error TypeError: Components.classes[cid] is undefined

When I open Firefox 4.0 Javascript Error TypeError: Components.classes[cid] is undefined

Todas las respuestas (3)

TonyE
TonyE
  • Moderator
more options

That indicates that an add-on you have is not compatible, to troubleshoot this follow the procedure in this link - https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes

Navi
Navi
more options

Hi Tony E,

Thx for your link.

I have removed the Ask Tool bar from Add-ons, after which the problem got resolved.

Hope this solution is useful to others too.

Thx/Rgds

Navi

Modificadas por Navi el

the-edmeister
the-edmeister
  • Moderator
more options

Please click the Helpful button next to the answer that solved your Firefox support issue, when you are logged in, so this thread gets marked as Solved.