There is one small isue but still not solved after many years of firefox dev, so that's why i post it today. When i open firefox by default the google home page open up (and i like it that ways) But firefox open in about 0.2sec, and google open in about 1.5sec, so everytime i start firefox and start typing in the url bar, the " https://www.google.fr/ " text appear after my search, and that's dissapointing.