Comment 6 for bug 1051152

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Chris Coulson (chrisccoulson) wrote : Re: Firefox 16 beta crash in nsIContent::SetAttr

The stacktrace shows clearly what happens. A menu is removing its menupopup in a popuphiding handler, which then causes a null ptr deref when we go to fire the popuphidden event. This should be a trivial fix.

If you scrub through all of the menus with the mouse, does a particular submenu cause the crash when it closes? I'd be interested to know which menu actually triggers this. I don't think anything in Firefox actually does it.