|OS:||Linux, MS Windows|
Mozilla Firefox is a free and open source web browser descended from the Mozilla Application Suite, managed by the Mozilla Corporation. Firefox had 19.46% of the recorded usage share of web browsers as of September 2008, making it the second-most popular browser in current use worldwide, after Internet Explorer.
To display web pages, Firefox uses the Gecko layout engine, which implements some current web standards plus a few features which are intended to anticipate likely additions to the standards.
Firefox runs on various versions of Microsoft Windows, Mac OS X, Linux, and many other Unix-like operating systems. Its current stable release is version 3.0.3, released on September 26, 2008. Firefox's source code is free software, released under a tri-license GPL/LGPL/MPL.