Mozilla on Tuesday officially launched its Firefox 4 Web browser, which it says includes a more customizable browsing experience and faster performance.
The company called the latest iteration of the popular Microsoft (NASDAQ:MSFT) Internet Explorer alternative its "fastest Firefox yet… six time faster than previous releases."
Firefox 4, like Microsoft's recently-released IE 9, sports a much simpler interface, which puts the focus on the Web page a user is viewing, rather than on space-stealing buttons and menus.
Also improving the browsing experience, said Mozilla, is a new feature called App Tabs, which lets users organize tabs into different spaces inside the browser. It looks similar to Apple (NASDAQ:AAPL) OS X's "Expose" function for windows in the operating system.
The latest Firefox, according to the company, includes improved privacy and security with features including a "Do Not Track" function.
Users can also use Firefox Sync to synchronize their bookmarks, history, and saved logins on multiple computers that have Firefox 4 installed.
On the technical end, Mozilla said the browser includes HTML5 support and the ability to prevent crashes in plugins like Adobe (NASDAQ:ADBE) Flash or Microsoft Silverlight from taking down the entire browser. Users can continue browsing and just reload the affected page, rather than have to restart Firefox.
Mozilla said Firefox 4 is a free download available for Windows, Mac OS X, and Linux immediately and will be coming to Google's (NASDAQ:GOOG) Android OS soon.