Last week we brought you news that Mozilla would be opening their new Marketplace to developers at this week’s Mobile World Congress. Today, Mozilla announced that the Marketplace is now live and accepting app submissions.

The Mozilla Marketplace is intended to be a completely platform-agnostic app market. It will offer web apps that users can access from any HTML5-capable browser. The apps will also, presumably, run on the new HTML5-based open web phones that Mozilla has also announced at the Mobile World Congress. The phones are expected to have a price point similar to an entry-level feature phone and run on Mozilla’s Boot 2 Gecko operating system.

The Mozilla Marketplace will be opening to the public later this year, with the launch of Firefox 13. Availability of Mozilla-based smartphones is not yet known.