You've clearly never built a product. One product alone requires a CEO. More than one, much more so.

And anyway you're factually wrong. They produce much more than what you listed, many of their undertakings are contributions to open-source, the development of web standards, underlying technologies that browsers (not just Firefox) use to render the web, etc.

You're being childish and somewhat absurdly so. Mozilla and Firefox are a large part of the reason the modern web is usable (in the technical sense - usability for the deaf and blind, screen readers, etc)