i'm using Firefox it's great except the memory leak but i think this will be fixed in the new firefox3
That's an interesting statement. There are many threads all over the web on memory leak issues with Firefox (been for a while now inc diff versions). I can't see how you would find it faster than a browser such as Opera - considering almost every study/test results on the webs have Opera listed as the fastest. Perhaps you want to share your system config and what plugins etc you use with firefox that it is so fast?