When I opened my T-Bird email this morning the only folder it had was "Local Folders" - it no longer had my webmail accounts. I spent 3 hours trying to fix the situation by reviewing many internet help sites but nothing has worked - or the directions (for manually rebuilding a profile for example) were way too complex for me). I have to believe this is something fairly simple. I use Outlook from Microsoft 365. Last year I had to buy a service from Owl to work with Microsoft's system (they forced everyone to use Exchange I think). I'm still getting Outlook email and can access it through a web browser. My address book shows all of my contacts. Also, I can find my profile in File Explorer and see all of my inbox, sent, and other folders so I think my profile is in tact - it's just not being recognized by Thunderbird. Does anyone know how I can get my profile back?