My favourite new Firefox theme: iAqua
(click on it for a better view)
Check out those beautiful toolbars! You can get iAqua here: https://addons.mozilla.org/en-US/firefox/addon/5327. iAqua is another mac theme (obviously), but instead of using the rather ugly Safari/Finder buttons, it uses the lozenges from Mail.app. Sometimes people complain about Mail.app not having a common interface with the rest of the Mac, but I think it is rather beautiful. Anyway, I love this theme. The one thing I would change about it is the ugly bold text in the Bookmarks toolbar. Also, I would eradicate the favicons; they kind of get in the way in this type of setup.
Now, in order to get rid of the menu, you will want my other favourite Firefox extension, Hide Menubar: https://addons.mozilla.org/en-US/firefox/addon/4762. Unlike other similar addons, it actually hides the menu toolbar, so that you don't have to move all your navigation buttons into the menu toolbar. This is important especially for iAqua, because the neat gradient in the toolbar is only present for real, live Navigation Toolbars. When you press the ALT key, the menu temporarily appears.


