Better GReader is a Firefox extension by Gina Trapani of Lifehacker. This Firefox extension combines many Google Reader Greasemonkey extensions into one easy installable package.
I updated to the newest version 0.2.5 that includes a Greasemonkey script with enhancement to the feed icons.
The addon uses each sites favicon as the feed icon. Pretty cool. You can download the Greasemonkey script only here.
Finally here is a link to the Lifehacker post about Better GReader.