Developer reply by H.Ogi
Rated 5 out of 5 stars
unfortunately doesnt work with TB 3b yet.. i'm waiting to find this wonderful tool updated...
This review is for a previous version of the add-on (0.7.80).Please visit my blog and join the TB3 compatibility testing. http://hogiblog.blogspot.com/2009/03/thunderbird3-compatibility-testing.html
To create your own collections, you must have a Mozilla Add-ons account.