Hi,
Here is a recent piece by TheRegister you may enjoy:
https://www.theregister.com/2024/07/22/mozilla_thunderbird_ffix/
The fix was developed by Mozilla Thunderbird software engineers Heather Ellsworth and Ikey Doherty. Doherty in patch details said that the system tray icon proved difficult to support for x86 (32-bit) builds, and thus at the moment requires a 64-bit build of Thunderbird.
