Review for Compose for Thunderbird by lz
Rated 4 out of 5 stars
I wish it didn't deviate so severely from the OS theme. I'm not sure if that was intentional or just easier because it's a proof of concept. Really I'd just like the normal composition window to be a tab, but the GMail-like address fields are nice.
To create your own collections, you must have a Mozilla Add-ons account.