Im pretty surprised this wasnt mentioned here, but ill give it to you guys anyways.

In my line of work all this becomes pretty apparent, but just like any big business they always rush an try to get everything out on the market before other people do, so what you guys didnt know is that right now, there is a huge exploit in FF3 which allows a "hacker" to hijack your session. FF2 is the best and most secure at the time being. There has been no patch either to fix FF3 so i would suggest that people who do important things on the computer stay off of FF3.