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When I click on Firefox I get a pop-up that says: Java Script Application TypeError:Components.Classics[cid] is undefined. IS THIS DANGEROUS?

  • 1 reply
  • 1 has this problem
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  • Last reply by cor-el

Hawaiiham
Hawaiiham
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Java Script Application X

! Type Error:Components.classics[cid] is undefined 

                                     OK
Java Script Application X ! Type Error:Components.classics[cid] is undefined OK

All Replies (1)

cor-el
cor-el
  • Top 25 Contributor
  • Moderator
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This issue can be caused by an extension that isn't working properly.

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).