Mozilla, the company behind the Firefox web browser, is planning a completely open mobile operating system, and today it revealed its official name: Firefox OS.

The first Firefox OS devices are expected in 2013, and Mozilla has already lined up some extensive support for the project. China’s ZTE and TCL, two large phone manufacturers, said they would build devices using Qualcomm Snapdragon processors, the same kind of chip in the Samsung Galaxy S III.

In addition, wireless carriers throughout the world have voiced support for Firefox OS, including Deutsche Telekom (the parent of T-Mobile), Etisalat (which operates in 18 countries throught the Middle East, Asia and Africa), Sprint in the U.S. and Spain’s Telefónica, which will release the first Firefox devices in Brazil.

Mozilla says Firefox OS will be a “fully open mobile ecosystem,” built entirely on open web standards, with apps developed as HTML5 applications. HTML5 is a standard for supporting advanced functionality in web pages — when an app launches in your smartphone’s browser instead of as a native app, chances are it was made with HTML5.