Glossary:
Firefox
Firefox, accurately known as Mozilla Firefox is a free and open source web browser distributed by the Mozilla Corporation.
It is reportedly the second most popular browser worldwide after Microsoft's Internet Explorer. There is currently a version for Windows, Mac OS X, Linux and other Unix operating systems.
Firefox uses the Gecko layout engine, which implements most current web standards.
Mozilla is a global community dedicated to building free, open source products like Firefox and Thunderbird email software.