I was one of the first Firefox evangelists. I ran it before 1.0. Back then the mass public had only one browser, IE6. Today there are many choices. It is exciting to see all the competition going on between Chrome, Firefox, Opera, and IE. Lifehacker has an overview of a number of test they ran: Browser Speed Tests
I run Firefox at home for a couple of reasons. There are some extension that I just can’t live without, I could not imagine browsing without them. I have been using Firefox from pre-1.0 days to 3.6. One thing that has been discouraging of late, is their release schedule. It seems that Firefox is behind the times. By the time they release a version with a feature, Chrome or Opera have had it for months. They have adopted a new development style “Lorentz” More here. Hopefully this will keep Firefox from being IE6 of old.
My must have Firefox extensions: