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error message <window <="" id="messengerWindow" p=""></window>

alan149

Firefox has just crashed on my mac. running 78.8.1. Completely removed it and started with a new profile and it works. Tried reinstalling my backup profile and it crashes with the little message box.

Firefox has just crashed on my mac. running 78.8.1. Completely removed it and started with a new profile and it works. Tried reinstalling my backup profile and it crashes with the little message box.

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Hi The error I am getting is attached. Recently updated to Big Sur and the problems started then.

That screenshot seems to be about Thunderbird, so is your question about Thunderbird or about Firefox ?

If this is about Thunderbird then we can move the thread to Thunderbird Support.

Sorry - It is thunderbird that is the problem. Must be old age!

I've moved the question to Thunderbird support.