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Preferences->Files & Attachments is set but I keep getting prompted

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Thunderbird 91.2.0 on a Mac running Big Sur 11.6

When I select "Do this automatically for files like this from now on", I still get prompted the next time with the same message.

The file type and action are specified, but I still get prompted each time I try to open an attachment.

This seems like a simple bg to fix.

Thunderbird 91.2.0 on a Mac running Big Sur 11.6 When I select "Do this automatically for files like this from now on", I still get prompted the next time with the same message. The file type and action are specified, but I still get prompted each time I try to open an attachment. This seems like a simple bg to fix.
Attached screenshots

Chosen solution

Thanks for the prompt feedback. Interesting... it is sad when you are handcuffed like this. Not the worst bug though. I have mixed feelings about v91.*.

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All Replies (4)

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Modified by sfhowes

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But this did not appear in the previous release of Thunderbird I was using, which was v68 or something like that. It just appeared when I upgraded to 91.2.0.

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Yes, it's a new, unwelcome bug in 91, thanks to unanticipated changes in the Firefox code that TB relies on.

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Chosen Solution

Thanks for the prompt feedback. Interesting... it is sad when you are handcuffed like this. Not the worst bug though. I have mixed feelings about v91.*.