Too bad, it's already there, the difference is that if you then rapidly scroll up, SFOS browser shows some blurry mess from cache. I have no such issue on my PC though, but then I use one of these webkit browsers :/ Web has changed since 1980s, guys. You might not like these shiny, constantly refreshing, responsive websites, but they're here. According to StatCounter data this release of Firefox is in use by ~3% Firefox users, you can't expect web developers to jump through hoops just to support it, you know. Not being supported by an ancient browser doesn't mean that website is not coded according to standards, it just means that the browser is not supporting them.