Judging from their website, it looks like the Firefox 3 download day went very well. Downloads comfortably surpassed 8 million but the exact figure will be confirmed by Guinness World Records over the next few days.
Initially I like the upgraded Firefox 3, especially the history function when typing in a new address in the address bar, very useful! It looks cleaner and appears to be faster too. Let's see if FF3 handles memory leakage better as FF2 wasn't the best in that regard.
FF2 on Ubuntu Linux fails to pick up any updates so I'm still running FF2 on Linux but FF3 on Windows. Not an ideal situation by any means, but I will look to upgrade over the coming week.