On 16/11/2021 16:21, Steve Green wrote:
> ok, using it, liking it.. but just realized I'm not backing it up.. 
> can't find the damn files anywhere on the laptop.. where are they? :-)

Try C:\users\...you...\AppData\Roaming\Thunderbird\Profiles\...

In there you should find one or more strange foldernames... And within 
each of them, you should find a Mail\ sub-folder, and then "Local 
Folders"... you should find your inboxes in there, and your sent 
folder(s)/files(s), etc.

Also, if the files are large, maybe run a Compact on them before backing 
up - to save some space. But, before running Compact, always take a 
backup!!!   ;-)

   - Mike