It's good for you, yes, but theres something better.

I mean,

If you used a 300MHz PC and it did everything for you, you wouldnt know the difference, and would use it fine. if you somehow tried a 4GHz PC, you'd probably be amazed by it, compared to your other one..

Firefox is like that. :P

Just try it and you'll see how held back you've been. :S