Why Firefox?
   
Why I can spend more than 6 hours of time on this application alone per day?
  
Obvious answer is because there I vast information out there and updated every second

And because Firefox has extensions that I cant live without

Mouse Gestures 1.5.2 for Firefox: 1.0 – 2.0.0.*

It is an extensions that give you the power to control Firefox by using one hand.

With it, I can eat with one hand and still browse the web using Firefox with another hand
I can chop off one of my hand and still be able to freely browse the web

What is does is simple allows you to make commands like "Go Back", "Go Forward", "Close Tab", "New Tab" etc etc.

 

It is a must have tool for browsing!

Enjoy!