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Just updated firefox, every time I open it I get a message about a java script application

  • 4 replies
  • 6 have this problem
  • 17 views
  • Last reply by chloe_am

chloe_am
chloe_am
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The message says

[Java Script Application] can't create mcaffee plug-in object. TypeError: Components.classes[cid] is undefined

The message says [Java Script Application] can't create mcaffee plug-in object. TypeError: Components.classes[cid] is undefined

All Replies (4)

DanHerlihy74
DanHerlihy74
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I have the same problem running in Windows 7 when I launch Firefox 4. The slightly different message I get is - [Java Script Application] TypeError: Components.classes[c] is undefined

DanHerlihy74
DanHerlihy74
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Correction - the message I get is - TypeError: Components.classes[c] is undefined

TonyE
TonyE
  • Moderator
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That indicates that you are using an add-on that is not compatible with Firefox 4. For details of how to troubleshoot this to find out what one is causing the problem see https://support.mozilla.com/kb/Troubleshooting+extensions+and+themes

For chloe_am it indicates the version of McAfee add-on is not compatible.

Modified by TonyE

chloe_am
chloe_am Question owner
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Thanks! I just disabled the add on and the message hasn't returned.