Rated 3 out of 5 stars
Love it! Adds color & shape where there wasn't before! Makes my favorite sites that don't have a favicon that much easier to identify in my favorites bar! love it!
... except when it randomly generated a swastika symbol as a favicon. I know it's random, but is there ANY way to block that shape or swap it for something else if that happens?
No easy detection
Detecting swastikas in general is not easy. I added some code to block the generation of certain shapes that look like swastikas, but other combinations might also result a similar shape. Besides, except for the most trivial cases, what in your opinion "looks like a swastika" might not look like one at all for others. In my opinion, for example, it is pretty far fetched to say that your link resembles a nazi swastika. (Not any more than it resembles a green cross.) Anyway, if you don't like the icon for a particular site for any reason, you can always add that site to your exception list in the add-on preferences.