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I get a "JavaScript Application - Reference Error: XPCSafeJSObjectWrapper is not defined" error every time I try to open a new tab.

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  • 58 have this problem
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  • Last reply by PumaMania

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Like the Title says, every time I open a new blank tab on Firefox 4 Beta, I get an error that says "JavaScript Application - Reference Error: XPCSafeJSObjectWrapper is not defined" This never happened to me before upgrading a new version of the Firefox Beta some time ago...is there any way to fix this?

Chosen solution

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).

  • Don't make any changes on the Safe mode start window.

See:

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Chosen Solution

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the add-ons is causing the problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).

  • Don't make any changes on the Safe mode start window.

See:

more options

Thanks, it worked!