Mozilla's mission focuses on promoting openness, innovation, and opportunity on the web, primarily through the contributions of a large volunteer community to the Mozilla Developer Network (MDN). MDN serves as an open-source documentation platform for web technologies, featuring contributions from over 2 million users each month, covering a range of topics and languages. The success of this volunteer-driven initiative highlights the intrinsic motivations of community members, who seek belonging, a sense of purpose, and the opportunity to share their expertise.