It needs Palemoon Rated 4 out of 5 stars
I understand that the author doesn't want to get too deeply involved but the FF family should include Palemoon. I am going to disable it and request that one addition. However, 4 stars seems fair for a comparatively good user agent switcher.
Actually I've been exclusively using Palemoon myself for the last 3 years, ever since I discovered it -- much better for the heavy non-trendy users than FF. The reason I didn't include PM's UA strings (other than being lazy) is that IMO you never actually _need_ to differentiate from FF in the eyes of websites. Plus, I prefer to hide in the crowd...
But I might add the PM strings very soon, and also do some mopping around the other menus. Cross your fingers.