I think it has something to do with the site rather than FF. Yesterday I kept getting a message about the server being busy, and something about cloud flare. I just tried again to connect using FF, and eventually got the following message:
Retry for a live version
This page (
http://audiogames.net/)
is currently offline. However, because the site uses Cloudflare's Always Online™ technology you can continue to surf a snapshot of the site. We will keep
checking in the background and, as soon as the site comes back, you will automatically be served the live version. Always Online™ is powered by
Cloudflare