Chinese developers have leaked screenshots of Firefox OS 2.0, showing a thoroughly revamped look that's reminiscent of both Android (and the so-called Project Hera) and Apple's iOS 7 (especially the lock-screen). The latest available version of Firefox OS is 1.3, while developers are working with a preview of version 1.4, so if these shots really are from v2, then that's quite the version jump!
Sadly, we couldn't find any more information about the leaks or other details around them. These screenshots and their debatable authenticity are all we have for now. Hopefully, we'll get to know more about where Mozilla is going with its mobile operating system. This UI really good, and having a well-crafted user experience on entry-level (and otherwise cheap) handsets is quite enticing.