Rated 5 out of 5 stars

Thanks, very useful. I have a few sites I love but I hate the plain favicon. This addon actually chooses favicons that match the sites color scheme (I hope this was intentional and not just a coincidence). I also love that it does it's job automatically for sites without a favicon. Anyway, thanks a lot, I needed this.

This review is for a previous version of the add-on (0.3). 

Coincidence

I'm glad you like it. I'm afraid the choice of color is a coincidence, since all aspects of the icon are chosen pseudo-randomly based on the site's domain name. In this case, it seems the site's name and its color scheme harmonize :-)