>>nicbou+(OP)
Kudos on the nice UX for dropdown with countries. I wish more websites do it. Usually, it's "United States" at the very top, and 194 other countries in a loooooong list.
>>gumbal+X3
The OP wrote this is based on "navigator.languages" feature in the visitor's browser. So if your preferred language is set to e.g. French, then you shall see France at the top of dropdown.