Mozilla Firefox (formerly Firebird), which uses a large amount of the Mozilla code, is a lean and fast browser written using Extensible User Interface Language (XUL). It works on Linux and Microsoft Windows operating systems and is designed to be cross-platform. Additional features include a new design, a redesigned Preferences window, new icons for the Bookmark Manager toolbar, improved privacy options, smooth scrolling, and various bug fixes and improvements.
New features in this release include a new Default theme that now presents a uniform appearance across all three platforms (fine-tuning for GNOME will follow in future releases); the ability to import data such as Favorites, the history, settings, cookies, and Internet Explorer passwords; the ability to import from Mozilla 1.x, Netscape 4.x, 6.x, and 7.x, and Opera (Mac OS X and Linux migrators for browsers such as Safari, OmniWeb, and Konqueror will be available in future releases). New Extension and Theme managers provide a convenient way to manage and update your add-ons; SmartUpdate notifies you of updates to Firefox; a new online help system is available; and this version includes many bug fixes and improvements.