Disabled? Rated 1 out of 5 stars
It does not work properly in Linux. When this is installed into Iceweasel 3.5.10 on Debian Squeeze, all of my extensions in Tools -> Add-ons say that they are disabled, including this theme and the default tango theme.
The real winner comes when I click on the support link to report the problem as a bug. The support link takes me straight to the general Mozilla forum at dslreports.com. That's not exactly how I would prefer to report a bug to the developer.