The neatest thing about Firefox is the way you can change its looks and behavior using (almost always free) add-ons. Here's a list of the best of 2 billion add-ons. (2 billion? That's how many have ...

Mozilla Corp. today announced the winners of its third “Extend Firefox” contest, an annual competition that recognizes the year’s best Firefox add-ons. This year’s contest, which launched in March and ...