Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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

Ever since I upgraded to Foxfire 9.0,I now have a Javascript error,Why?

  • 3 replies
  • 2 have this problem
  • 1 view
  • Last reply by Vivek

more options

TypeError: Components.classes [cid] is undefined

TypeError: Components.classes [cid] is undefined

Chosen solution

Hi,

Please check if this happens in Safe Mode.

Read this answer in context 👍 0

All Replies (3)

more options

Chosen Solution

Hi,

Please check if this happens in Safe Mode.

more options

Didn't seem to make any difference, restarting in safe mode with add- ons disabled or not

more options

Is it still repeating?