Z 5 z 5 gwězdkow pógódnośony

wót Sina Momken dnja Dec. 29, 2012 · trajny wótkaz

I wonder why Thunderbird doesn't have this feature by default. I saw "import" under "tools" menu, but don't expect that it only be able to import address-books.
But using this addon we can also import/export mails/folders as mbox, eml and other formats.