Are you running 64-bit? I wonder if the size difference is due to that. I've heard 64-bit processes are bigger, due to larger pointers and longs, but I wouldn

Are you running 64-bit? I wonder if the size difference is due to that. I've heard 64-bit processes are bigger, due to larger pointers and longs, but I wouldn't expect things to be so amazingly huge. I certainly couldn't have survived on 512MB if my computer were using memory the way yours is. Also, have you tried using webkit nightlies? I found that they were much more memory-friendly than safari, especially with flash disabled.