Best IE Emulator Rated 4 out of 5 stars

I have tried all 3 IE emulators: IE Tab v2+, IE Tab Plus v1.2+ and this add-on, IE Tab 2 v4.1+. This is the best by far. In FF 13, IE Tab Plus and IE Tab 2 both bring up explorer tabs but only IE Tab 2 is recognized as an Internet Explorer browser by websites like, which ONLY codes for IE. IE Tab doesn't work at all in FF 13.

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