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When opening Firefox I get this message: Type Error: Components. classes ['@software.ru/skype/skypeFfentension;1'] is undefined. I have reinstalled Skype still have issue, Skype will not load, Firefox will ??

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  • 13 have this problem
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  • Last reply by lin52

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I started having this issue when I went to open Skype and it would not react and gave the message below. Then when I went back to firefox I got the above error message, which dissappears when I click OK and firefox will open. Skype still will not open.

I started having this issue when I went to open Skype and it would not react and gave the message below. Then when I went back to firefox I got the above error message, which dissappears when I click OK and firefox will open. Skype still will not open.

All Replies (2)

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That is a problem with the Skype extension.
You will have to disable (uninstall) that extension if it isn't working properly.

See:

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I installed the September 2011 Click to Call and that stopped me getting that message.