Rated 5 out of 5 stars
Brilliant! This is just what I was looking for. Now a gmail-like conversations interface for Thunderbird. I really wanted this in a desktop email client with offline email access. (And Postbox is too much $$ for my budget.)
It's working well for me so far. (w/ TB 3.2) Looks like lots of good things ahead for this plug-in as well! So good to see!