I upgraded to Firefox 2.o yesterday. I must accept, the new browser is really good. It has this feel good factor and a pleasantness which makes the browsing experience a lot more better.
The new features which i could notice straight away are
Better tab browsing
Inbuilt word checker
I basically like the look and feel of the new browser and believe me, browsing is fun with this tool.
Click here and get your own copy :)