This has been happening since i installed FF3.0b2. I can't use the advanced view on Hotmail. it will just stay on the loading screen for ages. I could use "classic," but i'd prefer advanced. is there a way?
Or you might try submitting a bug report to the Mozilla team. I think I remember reading in the Firefox 3.0 Beta 3 release notes that Hotmail wouldn't work. But I also remember Yahoo Mail and Gmail being mentioned. So far Gmail has been working fine for me.