I am trying to move a Thunderbird profile from Windows 10 to Ubuntu 20.04.1. I have followed Mozilla's instructions several times, but they don't work. When I open Thunderbird after copying the profile folders, one of two things happens:

1. Either I am greeted by a "new installation" screen showing none of my folders or e-mail and inviting me to set up a new e-mail account.
2. Or I am greeted by this version-conflict error message saying "A newer version of Thunderbird may have made changes to your profile which are no longer compatible with this older version" and a link to this page.

I'm not sure what version of Thunderbird I had running on Windows 10, but it was reasonably current. The version on Ubuntu is 68.10.0.

Either way, I am prevented from importing the profile or the thousands of locally stored e-mails in the profile. Any ideas how I can get this done?

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1 Answer

Copying and renaming did not work at all for me as well. It's kind of a regression of Thunderbird I'd say.

I finally managed to import all my Thunderbird profiles successfully in one go using the Addon ImportExportTools NG.

You can add it under Addons in Thunderbird:

• Under Windows Thunderbird export your profiles under Tools -> ImportExportTools NG -> Export Profile -> to a folder you can access from Ubuntu.

• In Ubuntu Thunderbird import it from Tools -> ImportExportTools NG -> Import Profile -> select the folder and follow the instructions. In case there is no menu by default like in my case, hit Alt key and it will show.

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