While sleepycity will (mostly) function without javascript, your experience will be improved by enabling JS for this site. Only google analytics is embedded, which you're already blocking anyway if you value your privacy. Suggested firefox add-ons: Adblock edge, noscript, request policy, betterprivacy. Save money, time, CPU cycles, electricity and tell advertisers to fuck themselves.
sleepycity has the best noscript I've ever seen: