Firefox (formerly known as Phoenix and Firebird) is a cross-platform, powerful, usable, and standards-compliant Web browser, based on the Mozilla framework. It is written using the XUL user interface language and was designed to be cross-platform.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.