Rated 5 out of 5 stars

Exactly what Firefox 16.0.2 needed on win 7 32 bit. Gave me some color back without changing any thing else. Perfect. I would love to have something similar for the new Thunderbird 17 which has gone all black and white and unreadable with its icons.

This review is for a previous version of the add-on (2.6.3). 

@Gary Britt

You may want to try my TB themes to alleviate the monochrome icons as well: