Mozilla has revealed that it is working on a version of its Mozilla browser for Microsoft's Windows 10 operating system, although it remains unclear if the browser will be available alongside the launch of the new OS on July 29. It's not clear if that will be a full version 1.0 product in the Windows Store, or if it plans to release beta versions first, but Mozilla did say that it intends to provide an "independent and high-performing alternative to the stock browser", which - in the case of Windows 10 - is the new Microsoft Edge.