Windows 7 Tip: 
For those of you who use the FireFox web browser, theres is a a plugin avilable for it called ‘AdSense Notifier’ which displays your current AdSense page views, AdSense clicks and AdSense earnings in the bottom right hand corner of the screen.
If you already have FireFox installed then click here and download the Adsense Notifier plugin.
Once you have installed the plugin, go to ‘Tools’ >> ‘Extentions’.
Click on ‘Adsense Notifier’ and then click on ‘Options’.
Now write in your Adsense username and password and set all of the settings how you want them and press ‘OK’.
Now close FireFox and re-open it again, you will notice that your Adsense details are displayed in the right hand corner of the browser window.
very useful extension thx,
Yes Mohamed, U r right its very helpful