Firefox add-on for your Google reader feeds
The Google Reader Watcher extension is based on one of my Grease monkey script, which name is Google Reader Checker

With the Google Reader Watcher extension you can check your feeds regularly, you can see which feeds have unread news. You can open the Google Reader directly from the status bar and not at last, you can configure the extension to login with your Google Account automatically.

Download Google Reader Watcher Add-ons for Firefox

for more details on this add-on visit this page