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I keep getting error messages - "what happened:TypeError: Components.classes['@mozilla.org/extensions/manager;1'] is undefined." Anyone know how I can get rid of it? I have reinstalled Firefox a couple of times and that hasn't worked.

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  • Seneste svar af Xircal

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Every time I log on, I get repeated error messages -

"what happened:TypeError: Components.classes['@mozilla.org/extensions/manager;1'] is undefined

I've tried deleting then reinstalling Firefox, and even bought a SpeedMaxPC thing which is meant to clean up my register (whatever that is) but the error messages continue.

Thanks for any assistance.

Valgt løsning

This is an indication that you have an add-on installed which is incompatible with Firefox 5.0.x

To determine which one it is start Firefox in Safe Mode. See this article which explains the procedure: http://kb.mozillazine.org/Safe_Mode

If you have the Ask Toolbar installed, remove it by clicking the orange Firefox button, go to Add-ons, then Extensions.

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Valgt løsning

This is an indication that you have an add-on installed which is incompatible with Firefox 5.0.x

To determine which one it is start Firefox in Safe Mode. See this article which explains the procedure: http://kb.mozillazine.org/Safe_Mode

If you have the Ask Toolbar installed, remove it by clicking the orange Firefox button, go to Add-ons, then Extensions.

Ændret af Xircal den

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Brilliant. It worked. Thanks very much.

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You're welcome.