The only working one for 3.6 Rated 4 out of 5 stars

I tried some of the other button combiners and they all failed miserably while this one simply worked. There only are a couple of flaws with this one though. I noticed when it installed it immediately activated my Foxlingo toolbar that I normally toggle and it hasn't been updated since 2007 so it probably is abandoned. FF4 and up already combine these buttons but I recommend running 3.6 until Mozilla releases a version of 5+ that isn't a buggy nightmare. 3.6 is still the best browser on the planet...