Rated 4 out of 5 stars

Από τον/την Markus Gaugusch στις Ιούλ. 13, 2010 · μόνιμος σύνδεσμος

Great thing! I'd like to report one bug, though:
I'm using the unified inbox feature, and when I install extra folder columns on thunderbird 3.1, all my Inboxes are named "Inbox", which is quite confusing ... without e.c.f. installed, they are named after the account they belong to.