Google Chrome may be the best browser on the market. It's faster and more stable than Firefox and today began opening up to user modification with the availability of more than 300 browser extensions . Official Mac and Linux versions were just made available today as well. Can Chrome remain so much stronger than Firefox once a pile of extensions or added on? That's the question and now is your chance to start finding out the answer. It's been more than a year since Google launched Chrome , but today is a big day for the browser. Sponsor The one bit of bad news is that neither the official Mac version nor the developer version we've been testing for months - called Chromium