A Selection of the best themes avalaible for Firefox. Includes IE, Chrome, Safari, Opera and Flock Update: Unfortunately I've been unable to edit this collection. So... https://.../addon/australis/
Personas are free, easy-to-install "skins" for Firefox. Personas Plus extends that built-in functionality to give you even more control and easier access to new, popular, and your own favorite Personas.
Dark theme for Firefox. Inspired by the night launch of STS-116.
The default Firefox 2 theme. Designed by Radiant Core.
The power of the new Gecko engine with a good old Firefox 2 face.
Myfirefox is the theme of the most perfectly simulating Internet Explorer 8 by far.
It can work perfectly in Windows 7 .
Note from Mozilla: This add-on has been discontinued. Try FXChrome instead.
Chromifox Basic is a coat of chrome for Firefox.
Firefox's Strata theme - reloaded: with new icons, hover effects and redesigned dialogue windows for Windows 7 and Linux
Experience all the benefits of Firefox 4 (or later) with the colorful toolbar goodness of Firefox 2!
*** This addon is no longer being maintained; please read the NOTE in the "About this Add-on" details below to see why! ***
It is based on original Firefox 3.0 Mac OS theme.
MacOSX theme for firefox 4.0 is at https://addons.mozilla.org/en-US/firefox/addon/macosx-theme-firefox-4/