This is a very good tool for all Adsense Users.
The Adsense Notifier will display your current Google Adsense value on your Firefox toolbar automatically.
Adsense Notifier simply shows your adsense stats on the status bar and updates the stats automatically. This is wonderful for anyone with GAD (Google Adsense Disorder) who needs to check their stats every three seconds to see if they have gotten any more clicks.
Download and More info, click here - developed by mincus