Rated 3 out of 5 stars

It doesn't work for me, damn! I use TB 3.0.4 (i get the latest version thanks to the Ubuntuzilla script) and Docky 2.1.0 (bzr docky r1472 ppa, activated through Ubuntu Tweak). I thought that maybe the problem was that I modified the "thunderbird.desktop" file (inside /usr/share/applications/) in order to intergrate TB with Ubuntu 10.04's MeMenù, but I restored the original file and nothing happened. Any idea? Thanks a lot!

This review is for a previous version of the add-on (0.4). 

Hey,
If you are using Docky 2.1.0, please try Version 0.4, which is still in experimental phase, as it's waiting to be accepted by Mozilla.
In Docky 2.1.x DBus API has changed, so you have to use this new addon.
Best regards,
Lukasz