The graph is really funny but I can see no reason to change to Firefox?
I was of the same mind until I tried some of the Firefox extensions. That's what makes Firefox superior. You can get extensions for all sorts of things. Here's what I'm using on this netbook:
AdBlock Plus - hides all advertisements. If it misses one, you just right click it and tell it to hide it.
Autohide - hides all menu bars. Makes the netbook screen much more usable.
DownloadHelper - downloads streaming videos. I've got tons of videos from YouTube and other sources on my network storage. I can watch them on my big TVs whenever I want.
At work, I have to use some poorly coded sites that only work with IE, so I have IE Tab. It lets you specify a set of pages to run in IE on a Firefox tab.