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On startup Thunderbird quickly flashes up a small window with "<window id=messengerWin" and then quits

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  • Last reply by Chris

Chris
Chris
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When I try to open Thunderbird a small window quickly flashes up with "<window id=messengerWin" and then quits. </p>

I can start Thunderbird in safe mode with my old profile no problems.

I've just moved my profile from a OSX El Capitan system to a new OSX Catalina machine.

When I try to open Thunderbird a small window quickly flashes up with "<window id=messengerWin" and then quits. I can start Thunderbird in safe mode with my old profile no problems. I've just moved my profile from a OSX El Capitan system to a new OSX Catalina machine.

Chosen solution

After using Thunderbird in Safe Mode the last few weeks, today it just downloaded an update and fixed itself. Hooray!

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Chris
Chris Question owner
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Chosen Solution

After using Thunderbird in Safe Mode the last few weeks, today it just downloaded an update and fixed itself. Hooray!