At Mozilla, we use the word better a lot — better browser, better online experience, better Web — but what does better actually mean? Well, if you download Firefox 4, you’ll see what we’re talking about. It’s got super speed, a new look, an improved tab experience and an integrated add-ons manager.And by the way – Firefox 4 has already been downloaded more than 46 million times!
After you’re sporting your new browser, take the guided tour and become a Firefox 4 expert.
And just when you thought things couldn’t get more awesome – now you can download Firefox 4 for mobile and take your Web with you wherever you go.
It all comes from our philosophy of principles over profit and our desire to make the Web a better place.Hey, there’s that word again.
Jane & Winston Editors

On Tuesday, we brought the awesome of Firefox 4 to Android and Maemo.Get it automagically from the Android Market or visit firefox.com/m/ on your mobile device. It’s fast, easy to use and completely customizable. So your Web is wherever you are. Handy!
Share your Spark
To help you share Firefox 4 for mobile with friends, we created Spark, a game that lets you engage in challenges, unlock badges and help the flame of the open Web glow bright. Create your spark.
OK, so now you know that Firefox 4 is pretty awesome — another word that comes up a lot around here — but you might be wondering just what makes it that way. Here are some of the key features that our developers have been hard at work on:
- The Look — We took a step back and seriously revamped the look of Firefox 4. We moved things around, simplified and combined them, all in an effort to put the Internet center stage. The result is a clean, easy-to-customize browsing experience. Your Web, your way.
- Speed — Firefox 4 is our fastest browser yet, up to six times faster than our previous release. That applies to start-up, page loads, Web apps, graphics, you name it. If Firefox had a middle name, fast would be it. Of course, then it would need a last name, but that’s another story.
- Sync — Keep your mobile and desktop browsers synced. You have access to your browsing history, passwords, bookmarks and even open tabs whether you’re using your desktop at home or browsing on mobile from your favorite coffee shop. Get synced.
- App Tabs — Take sites you always keep open—like Web mail—off your tab bar and give them a permanent home in your browser. Simply open a site in Firefox 4, right click on the tab, and select pin as app tab. Learn more.
That’s just for starters.Checkout the Firefox 4 overview video for more juicy details.
Get Firefox 4 Today
Firefox 4 has arrived and is ready for download. Super fast, feature-rich and ready to rock. Test drive it out on your favorite web sites and let us know your instant feedback!

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