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I just upgraded to FireFox 22.0, and now I get a Javascript error (Error: Illegal operation on WrappedNative prototype object). What can I do?

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I just upgraded to FireFox 22.0, and am now getting a bunch of Javascript error pop-ups when I try to sue Gmail. The error message is: Error: Illegal operation on WrappedNative prototype object

I just upgraded to FireFox 22.0, and am now getting a bunch of Javascript error pop-ups when I try to sue Gmail. The error message is: Error: Illegal operation on WrappedNative prototype object

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'Disable your add-ons and add them one by one (each requiring a restart). If you have some sort of downloader add-on, this can be conflicting with your java/web browser. Hope this helps.'

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i had the same problem till i disable Avast plugin, after that everything went ok.

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