Comment 1 for bug 50902

I had the same problem, but now I only use Evolution and for me there is not need anymore to import E-mails.

But I've just found some ways to import mails from Evolution to Thunderbird:

http://forums.mozillazine.org/viewtopic.php?t=395122&highlight=import+evolution
http://forums.mozillazine.org/viewtopic.php?t=334394&highlight=import+evolution

Or just search in the forum if this links don't help you.

You should report this directly to the Thunderbird developers (at https://bugzilla.mozilla.org/ I think).

Thomas