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error message when starting Firefox 8 that says: TypeError: Components.classes[TvtPwmComponent_CID] is undefined

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  • Last reply by cor-el

Gregonmaui
Gregonmaui
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error message when starting Firefox 8 that says: TypeError: Components.classes[TvtPwmComponent_CID] is undefined I am using Window 7 64 bit

error message when starting Firefox 8 that says: TypeError: Components.classes[TvtPwmComponent_CID] is undefined I am using Window 7 64 bit

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

If it does work in Safe-mode then disable all extensions and then try to find which is causing it by enabling one at a time until the problem reappears.

  • Use "Disable all add-ons" on the Safe mode start window to disable all extensions.
  • Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")