Firefox OS Desktop Client
Firefox OS Desktop Client 23.0a1 Nightly for Windows
Mozilla Developer Center
Assists you in simulating Gaia and Web apps in a Gecko-based environment
Firefox OS Desktop Client (also known as B2G Desktop Client) is a platform that allows developers to simulate Gaia and web applications in a Gecko environment. Firefox OS Desktop Client does not emulate hardware, therefore it was not built for device API testing. However, it can be used in the development of mobile applications or in Gaia projects.

Software Summary:

You can run Firefox OS Desktop Client on Windows operating systems. Firefox OS Desktop Client is a software product developed by Mozilla Developer Center and it is listed in the category. Firefox OS Desktop Client is a free software product and it is fully functional for an unlimited time although there may be other versions of this software product.

Alternatives in on Windows