Im one of those guys that opens a new window, keeping the old ones open for reference when im working, while using FF or Safari. I prefer Firefox, however, FF always seems to run away with my processor. When i go to activity monitor its using 60-70 percent, the fans are up and the heat is high. Safari doesn't do this to me, not with the exact same web pages open. Is there a reason for this runaway? Some setting that needs to be tweaked or adjusted?