Comment 7 for bug 1620528

Right. Hopefully the preferred language (navigator.languages[0]) is there.

Correct me if I’m wrong, but I don’t think that other GUI toolkits/desktop environments will fall back on a second preferred language if the first one is not found. I.e. on your desktop an app would either be in Asturian or in English if the Asturian translation doesn’t exist, not in Spanish as a fallback. Right?