Loss of Thunderbird configuration after OS update

Tata_Audrey Posted messages 1 Registration date   Status Member Last intervention   -  
dubcek Posted messages 18627 Registration date   Status Contributor Last intervention   -

Hello,

I updated my Mac with the new OS Tahoe v26.2 and when I opened Thunderbird, the configuration was gone: I had to manually reconfigure the connection settings for my work email (outgoing/incoming server, etc.), which is not a problem.

Once connected, Thunderbird took 2 hours and 30 minutes to reload all my emails since I started my position. But I'm missing a crucial point: I had set up labels to visually (and by filter) sort my emails by projects/content/importance, I had about thirty labels that have ALL disappeared!!

Has anyone ever encountered this problem? And would know how to recover all the previous settings?

This represents 5 years of daily sorting where I take the time to add a label to EACH email!

Thank you for your help.

Audrey

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