Rated 5 out of 5 stars

I'd like to thank Strim for fixing this extension and putting it online, as it appears to work perfectly now! (at least, in Thunderbird 24 and Xubuntu 12.04)
Weirdly, editing the colorfolders.js file as Strim suggested it wouldn't work my case (I even performed a diff showing me the same exact differences as Strim's ones but it still wouldn't work), so that link to a fixed version is more than welcome.

This review is for a previous version of the add-on (1.0).