A Windows port of Aronnax's Firefox Graphite for Mac OS X, ported and released with his permission.
Windows port features:
1. Works with Firefox 0.9-1.0+;
2. Mail button support in both big and small icons modes;
3. Integrated compact menu icon in both big and small icon modes.
1. Missing arrows in the Bookmark Manager. Will probably be fixed soon.
2. I haven't tested it with TBE. I don't use TBE and I'm not going to in the near future, so if you encounter any issues with this extension - sorry, you're on your own.
3. Some strange incompatibilities between the theme and UndoCloseTab extension. Probably won't be fixed for I haven't the foggiest what's causing them. Known workaround: do not use the mouse middle button to close the tabs while having this extension enabled.