Join us and the lead editor of IRL, Mozilla's multi-award-winning podcast, for a behind-the-scenes look at the pod and to contribute your ideas for the next season, themed: "AI and ME." Mark your calendar and join our Community Call on Wednesday, Aug 7, 17:00–17:45 UTC. See you there!

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 reinstalled hoping it would get rid of the error message that pops up each time i open it TypeError: Components.classes[cid] is undefined

  • 1 பதிலளி
  • 2 இந்த பிரச்னைகள் உள்ளது
  • 13 views
  • Last reply by TonyE

Luche
Luche
more options

When I open up Mozilla i get this error message--TypeError: Components.classes[cid] is undefined also when i am working on my real estate web site and pull up a name i get the same messag. At the top it always says-- Java Script Application

When I open up Mozilla i get this error message--TypeError: Components.classes[cid] is undefined also when i am working on my real estate web site and pull up a name i get the same messag. At the top it always says-- Java Script Application

All Replies (1)

TonyE
TonyE
  • Moderator
more options

That error is caused by an incompatible/malfunctioning add-on. To identify the culprit follow the procedure in the troubleshooting extensions and themes article. One add-on that has caused this error for some is AVG safe search.