Bugzilla

(In reply to craigslistforsale01@gmail.com from comment #66)
> (In reply to craigslistforsale01@gmail.com from comment #64)
> > 115.10.1 seems to fix it for me too, and I was one of the first to notice this bug. Running Win 11, Intel i9.
> > 
> > I've closed and re-opened multiple times, monitoring Task manager, and I have not yet seen the Thunderbird process move to the background.
> 
> Update: while this is still true, now I notice (with 115.10.1) that Thunderbird no longer checks for new mail while running. It will do it exactly once when it's started, but nothing further after that unless I shut it down and restart it.
> 
> Verified server settings for "check mail" are correct.

Make sure you have "Allow immediate server notifications when new messages arrive" turn on

(In reply to craigslistforsale01@gmail.com from comment #66)
> (In reply to craigslistforsale01@gmail.com from comment #64)
> > 115.10.1 seems to fix it for me too, and I was one of the first to notice this bug. Running Win 11, Intel i9.
> > 
> > I've closed and re-opened multiple times, monitoring Task manager, and I have not yet seen the Thunderbird process move to the background.
> 
> Update: while this is still true, now I notice (with 115.10.1) that Thunderbird no longer checks for new mail while running. It will do it exactly once when it's started, but nothing further after that unless I shut it down and restart it.
> 
> Verified server settings for "check mail" are correct.

Make sure you have "Allow immediate server notifications when new messages arrive" turned on.