I don't use Thunderbird myself, but those things I do use, I just copy the .<whatever> hidden directory from one installation to the next, or keep a single .<whatever> directory on a separate partition, and replace the new .<whatever> directory with a link to the one shared by all my installations, then when I open the application for the first time, on the new installation, all my settings and preferences are exactly the same as the original installation.
Posted on: Today at 08:18:49
It's called .thunderbird ( as in dot-thunderbird )OP
, I think before
you copy or link, you have to open the freshly installed Thunderbird once and then exit immediately.
Then I just delete that one (.thunderbird in /home/<name> ) and replace it with my saved .thunderbird.
If I don't open it once as said above, there seems to be some problem.
Now, what I just said was valid more than a year ago, so, I guess it's the same now
Right now I keep my mail in a totally separate partition
I am on a 12Gb / partition now.
--installed pclos2012-2 KDE4
--installed an extra 41 packages + dependencies
--installed libreoffice clipart
It's now 7.2 Gb full
Hope this helps