Thunderbird Community Forum

I just deleted the folder C:\Users\alan\AppData\Roaming\Thunderbird and replaced it with a backup I made a few days ago. To my surprise, when I opened Thunderbird, I could see messages that I'd downloaded today. What is going on?

I tried transferring TB to new computer, nothing has worked. w11 TB148. Manually didn't work, tried coping from Troubleshooting Information/profiles. I don't know why there are 2 TB's? Under local and roaming but I tried. The video is out of date. It's a new install of TB so it opens with create account, both computers W11 and TG148! Please somebody tell me what I'm doing wrong? Thanks.