After a few days of using the x64 DE, though, I'm much less rosy about it. On many of the sites I visit suddenly I'm getting a bunch of script errors on the pages I visit (major news sites, etc.) that often crash the browser! I didn't see this much if at all in FF x86--now it is almost predictable despite the build getting updated daily. If it happens again today, I'm going to reinstall x86.