Ars reviews the just-released Firefox 3.0 beta 3 and determines that Firefox 3 beta 3 polishes rough edges. Re-done interface (nice on the Mac), integrated download statusbar, way better memory use than Firefox 2.0, plus lots more. Hit the article up for some screenshots. I'm not too sure about the windows look to be honest, I'm just booting up VMWare to check out how it looks and feels.