High Quality Content by WIKIPEDIA articles! The history of the Mozilla Application Suite began with the release of the source code of the Netscape suite as an open source project. Going through years of hard working (with the help of the community contributors), Mozilla 1.0 was eventually released on June 5, 2002. Its backend code base, most notably the Gecko layout engine, has become the foundation of a number of applications based on Mozilla, including the Mozilla Foundation`s flagship product Mozilla Firefox and Mozilla Thunderbird. While the suite is no longer a formal Mozilla product, its development and maintenance is continued as the SeaMonkey community project.