Firefox OS uses sources based on Android repos for the HAL, the bionic libc, some of the development tools (like "repo" and "adb"), and some other low-level lib

Firefox OS uses sources based on Android repos for the HAL, the bionic libc, some of the development tools (like "repo" and "adb"), and some other low-level libraries. Firefox OS doesn't use the Dalvik Java VM or anything built on top of it. https://developer.mozilla.org/en-US/Firefox_OS/Platform/Gonk https://developer.mozilla.org/en-US/Firefox_OS/Platform/Gonk