I really like this toolbar! Saves me some time login in all day to check my stats... And it's free, cool.

The AdSense toolbar is a free add-on to your Firefox or Explorer browser. It monitors your AdSense account - so you don't have to - allowing you to stay updated with your earnings and statistics (content, search and best channels).
Main Features:
* Automatic monitoring of your data: The check can be performed in any interval you want (e.g. every 20 minutes).
* The latest data is always displayed in a convenient position in your browser.
* Useful links: The toolbar includes some useful links - your AdSense account, popular forums, and more.
* AdSense feeds: Read the best AdSense related blog feeds on-line, straight from your browser.
* More stuff: local weather, radio (local and world wide), and many more cool 'gadgets'.