Sure, you already have Safari, but the world’s most popular browser is back and better than ever with the release of Mozilla Firefox 4 (free). The newest version of the open source wonder is faster and more customizable, sports a redesigned interface, and packs more features, too. Now available in over 80 languages, even your friends who speak Norwegian (yes, bokmål AND nynorsk) can get in on the fun.
There are a few new key improvements along with all of the under the hood stuff. App tabs allow you to make shortcuts of the sites you always have open—like Twitter and Pandora—right along with the rest of your tabs. Panorama lets you organize your tabs into groups to clean things up a bit. Overall, speeds are up to six times faster and like always, plugins, add-ons, and extensions fit right in.