Did you even look up your question on a search engine before asking it? The dedi...

		bru on May 3, 2013 \| parent \| context \| favorite \| on: Mozilla Launches Firefox OS Simulator 3.0 Did you even look up your question on a search engine before asking it? The dedicated Wikipedia page has all the information you are looking for: http://en.wikipedia.org/wiki/Firefox_OS (spoiler: no it is not)

Correction: yes, it is; it uses Android kernels.