B2G OS (Boot to Gecko) is an open source operating system for mobile devices created by Mozilla. It is based on the Linux kernel and uses a web-based interface to access applications, making it different from other mobile operating systems. B2G OS is designed to provide an open, standards-based platform for developing applications using HTML5, CSS, and JavaScript, as well as other web technologies. It is focused on creating a mobile web experience that is as powerful as native applications, allowing developers to create powerful, cross-platform applications. B2G OS also includes a wide range of built-in applications, such as a web browser, email, maps, search, and other features. It also supports a range of third-party applications, including games, social networking, productivity, and many more.
Discontinued The project seems to be no longer developed. The latest version, v58, released in December 2013, can still be downloaded from SourceForge.