Me too. It likes FF 67.0 64 bit on win but dislikes FF 67.0 on 64 bit FreeBSD. The mapbox URLs aren't called on the latter. Are you also on a unix-like system?
Yup same here, other mapping sites are just fine. Do you have a User-Agent masquerader add on available? I have no connectivity to my freebsd box at home now (no, thank you Frontier) or I'd try it and report back. But for the browser dependency it's a good looking site.
