Google Reader New Style Minimalistic By DemianGod 4.5.1-signed No Restart
Removes all the junk from New Google Reader and just gives you the search and collapsable subscriptions + favicons. By DemianGod
Also you can install the Script for GreaseMonkey.
Download from: http://userscripts.org/scripts/show/30242
This add-on is not compatible with your version of Firefox because of the following: