It has all that in the latest Firefox Nightly. Chrome only has the black back/forward animations. Firefox Nightly's animation is exactly like Safari, although

It has all that in the latest Firefox Nightly. Chrome only has the black back/forward animations. Firefox Nightly's animation is exactly like Safari, although you has to enable them specifically for now in about:config. It also has ML-style scrollbars where they enlarge when you mouse over them. So OS X integration has certainly improved.