it certainly reduce's the amount of ram it use's. I cant tell if it increase's performance (speed wise). I'm swaying to not using it though as firefox has always ran pretty quick even with umpteen tabs open.
Also i cant find much info about it which makes me weary.
I'm not one of those... If its using 100mb+ chances are i'm not in a game which is the only time I'd need all my ram.. If i'm in a game then i'll close firefox. Simple.
Already deleted it... It may be perfectly fine and dandy but I've never had any problems with Firefox as is so it shall stay as it has been. Plus the program itself takes up a couple of meg ram