You need to export the profile and re-import on each machine. If you make any changes on one machine you want to see it reflected on the others. The profile im

You need to export the profile and re-import on each machine. If you make any changes on one machine you want to see it reflected on the others. The profile import is a bit iffy and there was some odd issues with downloading profiles over 2GB IIRC, the last time I did it (which was over 2 years ago). There seems to be a lot of focus on features that IMO that I couldn't care less about and some outright stupid UI decisions like the context menus being changed after 20 years for god knows what reasons. The result was that I just gave up and use Thunderbird on one machine and web-mail on all the others. I suspect I will just drop Thunderbird as a result.