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typeError: components.calss[cid] is undefined

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

imfantasy
imfantasy
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typeError: components.calss[cid] is undefined

windows7 x64

typeError: components.calss[cid] is undefined windows7 x64

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
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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).