Ummm folks, This debate has been going on since the dawn of the internet. And it's not relevent anymore. As I've said before. The technology now exists to image your entire system in one mouse click. Therefore.... There is no reason to worry about what people are dumping on to your system. Or what browser is safer than another. Instead of defraging your HD once a week. Re-load it from a saved imgage. Chances are. It will actually be faster than defragging. When the web monster has no teeth. You won't mind getting bit. :-)