Firefox has been downloaded 400 million times in the three years since v 1.0 launched. It’s been roughly doubling every year. After six months they had 50 million downloads. 100 million after a year, and 200 million after two years.
There are 120 million or so regular Firefox users.
About 50% of TechCrunch readers use Firefox, according to our Google Analytics account, and it is the most popular browser. Internet Explorer is second with 40% and Safari with 6.6%. I didn’t expect to see Playstation Portable on the list, at no. 10.