Garret LeSage is creating a < http://linuxart.com/log/archives/2006/11/02/firefox-20-fitting-in/ Tango theme > for Firefox 2.0. It's definitely the best Tango theme I have seen so far for Firefox 2.0. In addition to providing support for Tango icons, it also removes the gradients from tabs and makes several other subtle aesthetic adjustments that improve visual integration with the GNOME environment.

SooperDoode has created an excellent < http://www.deviantart.com/deviation/38359610/ Tango theme > for Firefox 2.0.