This is open to a variety of solutions. To me, the only safe way to move a profile is to use the OS file copy facility. I cannot give details for Linux, other than offer these steps: - click help>troubleshootinginformation - scroll down to 'profile folder' and click 'open profile' - exit Thunderbird and click back one folder in the file view window so that you are looking at the profile folder itself, which probably ends in 'default' or 'default-release' - copy that folder to an external media - start thunderbird on the new computer - click tools>import>importfromanotherthunderbirdinstallation - follow the menus and select the exported profile to import

From my experience with a few prior posts, the import/export utility may be insufficient to this task.

Thanks, I did need the second set of eyes! instead of rsync of "Documents" I created a tarball of the user home directory. This picked up many of the missing pieces. However the look of Thunderbird is simply what it is. I'm guessing version 102.15 is not looking quite the same as version 115.6.1 (shame). The TB settings from the original box do not get transferred to the DR test box even after the import. And now I believe that Calendar is not part of export. Still looking at this, as my DR box is void of calendar entries.