content: "Linux" covers so many things, it seems like it would only be fair to test vanilla distros -- maybe the top 5 by installed base? But then, that gets tough to measure... But yes, really a shame that it wasn't included. I sort of get the argument to Firefox, though I agree with /v/syn0byte that excluding it arbitrarily really doesn't make sense at the end of the day -- but I really don't get not including an OS that powers so many things and is often offered as an alternative to upgrading to Win10.