Topic title is the concise summary, I apologize for such a long post below to add more details.
I'd already posted a topic on Thunderbird's primary forum and was referred here. Here's a link to that topic but all info in it is reposted here on this Portableapps topic:
I've been using 32bit Thunderbird portable on a Win7SP1+ x64 system for years, running off a Sandisk Extreme Pro USB flash drive (essentially a USB bridged SSD, not a slow storage media at all). It has plenty of free space and no other issues I'm aware of, running other apps though seldom do any others, update if ever.
For quite a while, a simple version update, say a ~5MB download, takes a long time, like over a minute. This is a minute after it's downloaded successfully, closed, and T'Bird relaunched, then little update box takes that long to finish. I eventually just decided it's quicker/safer to copy the T'Bird portable folder over to an SSD, run T'Bird from that to do the update, then copy it back to the Sandisk Extreme Pro. That seems really odd and if anyone knows what's up with that, I'd gladly like to know.
However now, the past update (I always update to latest version) and this update, something strange happens. It states an update available, or i put it off and later click Help>About Thunderbird to click the update button, and it downloads it, then I click "Restart to update thunderbird", and it closes, and a very brief updating window box is present (states Thunderbird is installing the update, or something to that effect), with the update bar not moving at all, so within about a second, that update box closes and T'Bird starts, and has not updated, still on (as of right now), version 102.9.1.
If I then repeat the above, clicking Help>About Thunderbird, it again presents the button to click "Restart to update Thunderbird", so I click it, and same as above, keeps failing to update. There is no error message. I've repeated this process multiple times and it won't update to 102.10 that it had already downloaded.
I also tried toggling the setting "Use a background service to install updates", to turned on (was turned off by default?), but every time I restart T'Bird, it's off, uncheckmarked again. Attached is that update box with the bar that never moves, just appears for a second then T'Bird is running without having updated.
The extreme slowness updating running T'Bird from the flash drive has been ongoing for a long time but this failing to update at all is something new for the last 2-3 versions at most (AFAICT).
To clarify, I can't get 102.9.1 to update from either the USB flash drive and/or the copy on an SSD, both fail to apply the update, which this exact same configuration has worked fine for years besides the last version or two. I wish I remembered if there was something special I did to get it to update to the 102.9.1 but I don't recall anything besides just clicking the restart button again which doesn't work this time.
Okay it gets weirder still. Doing nothing differently, except waiting the amount of time between my first post and now (almost 3 hours), the version update worked normally as expected by just launching T'Bird, except as initially mentioned, that it takes a strange/excessive amount of time to merely upgrade a 5MB update file to a USB flash drive capable of near SSD speed. Running same copy from SSD now also updates fine ~3 hrs later and updates very fasat.
To clarify, this USB bridged SSD flash drive is very fast. It has never been a problem running any other more intensive portable /other apps, nor T'Bird day to day for years.
Is the takeaway that if I want to version update this config, I have to wait hours to run T'Bird again? Failing any other solution, that seems to be the case.
Thanks for your reply!