- Try Google Chrome if you don't already have it. This problem seems to be with both Firefox 4 and Google chrome. On the Firefox page a lot of people have reported this "blank page" problem recently
- Turn off your Adblock Plus for that site, or any similar ad blocker program you have running.
I had this problem today when I tried to go to the link https://www.google.com/adsense/v3/app#home
It simply showed a blank page. Being kinda lazy and tired I couldn't figure out what was wrong right away so I googled the thing to see if anyone else had the same problem. And I noticed a lot of people did.
I also remembered that Google updated their Adsense a few days back, and the new beta interface is having problems, so I figured turning the Adblock Plus off would help, and it did!
Another option is to go to this address instead https://www.google.com/adsense/v3/disablebeta
Notice replace the word App with Disablebeta.
Hope this helps.