3 Hidden Features In Firefox 15 You May Want To Enable ~ Web Upd8 : Ubuntu / Linux blog
►http://www.webupd8.org/2012/09/3-hidden-features-in-firefox-15-you-may.html
Firefox 15, which has been released a few days ago, comes with some cool features disabled by default: native PDF viewer, preferences in tab and click-to-play plugins.