Rated 5 out of 5 stars

The best one ever. Waiting for official for FF 4.

Rated 5 out of 5 stars

Not pretending to "update the theme", just to mention - it is possible to install it for FF 4 simple by changing version number in full_flat-3.6.0-fx-linux.jar\install.rdf
here changed one can be downloaded http://narod.ru/disk/8895525001/full_flat-3.6.0-fx-for-ff4.jar.html
Use on your own risk.

Firefox 4 Rated 5 out of 5 stars

The best theme ever!
But does not work with FF4 yet.
Please update.