It's a know problem and it will be fixed in TB Daily soon. The fix will then also land in one of the next 105 betas. The good news is, this problem doesn't seem to do any harm, i.e. messages marked as junk are not being moved to the Junk folder.

Can roll back to stable condition?

What exactly does this mean? In general rolling back to an older version usually is problematic, and not recommended, unless you did create a full backup of your Thunderbird profile while still running the older version. Also, beta versions are intended for testing purposes, not for production. If you're not prepared for dealing with problems in betas, why are you running a beta version in the first place? Also see https://support.mozilla.org/en-US/kb/thunderbird-beta

I seem to have two images of Thunderbird installed!!!

What does this mean exactly?

here is the image of the control panel. that will show two installations of Thunderbird

Repeated question regarding I am runningThunderbird 105.0b1 (32bit). Mail in Yahoo inbox is marked as "JUNK", I can not change the marking of "Junk". HOW can I fix it? https://support.mozilla.org/en-US/questions/1387769

Copied info also in this question to maintain continuity. This has been flagged up,

• https://thunderbird.topicbox.com/groups/beta/T13083d00a76588af-M0c7fba04e696b1cd2851cc8b

Bugzilla Bug report - note this has already been worked on and due to be fixed in 106. So hang in there, it should get sorted soon.

• https://bugzilla.mozilla.org/show_bug.cgi?id=1782719

Thanks for the information. I just purchased a new computer and would like to install thunderbird. I would like to install a stable version and move my eMails from 107.ob3 to the new stable version 102.4.2 on the new computer. is this possible?

I would like to install a stable version and move my eMails from 107.ob3 to the new stable version 102.4.2 on the new computer.

I'd suggest you start a new topic for this.