Took me a while to figure out what went wrong.
With the new Firefox (v3) and the wordpress update, I was no longer able to see my WordPress stats on my dashboard.
Every (WordPress) login attempt, to see the stats, resulted in… Well nothing. I just kept getting back to the login page. No error.
Actually, I have “third-party cookies disabled” on all my browsers; I don’t like to have cookies from sites I do not visit. And this was the cause of the problem.
Simply add an exception for “*.wordpress.com” and you’ll be able to view all your stats again. 🙂