Doesn't even show up as an alternative.

It does not work. When I right click on Languages, only English shows up. Could you be more specific as to how to use the Languages feature in FireFox.
After ten months it still does not work. Is anyone from Firefox looking at these reviews? How do you get help from Firefox?

Az 59.0.1-hez az 59.0-ás nyelvi csomag nem működik. about:config hu-HU beállítva de úgy sem jó. For 59.0.1 language pack 59.0 does not work. about:config hu-EN configured but not so good.

Semmit nem változtat, marad az angol. 0 csillag jár!