The death of Firefox

It doesn't look good for Firefox: Almost every month for the last three years, has lost ground to Internet Explorer, Chrome, and Safari.

For most of 2009 the trend was fairly straight as it fended off Chrome and nibbled away at IE, but between 2010 and today Firefox has lost a third of its market share, from a worldwide peak of around 30% down to 20%.

Source:
http://www.extremetech.com/computing/116885-the-death-of-firefox