Review for Forward by polzin
Rated 5 out of 5 stars
Thanks! I have been looking for this, very long.
Just one problem: Thunderbird 2.0.0.23 claims that version 0.6 from https://addons.mozilla.org/ is incompatible. Version 0.7 from http://forward.mozdev.org/ works!
To create your own collections, you must have a Mozilla Add-ons account.