Archive API Firefox < 54
Archive API Firefox < 54

https://github.com/pyllyukko/user.js/commit/6e49ce497297c9cf8b699f844476bb464027f8f9#commitcomment-22221960

Toromtomtom/user.js,Toromtomtom/user.js,nodiscc/user.js,pyllyukko/user.js,nodiscc/user.js,pyllyukko/user.js