According to my friends that work at Mozilla, this site is purely for javascript speed and is what Mozilla uses as an internal motivator to motivate employees.

According to my friends that work at Mozilla, this site is purely for javascript speed and is what Mozilla uses as an internal motivator to motivate employees. Its a line everyone works to hit. Its not really a "benchmark" to show the world that they're doing better. It's a public site because everything that happens in mozilla is open, but it's not really for us to see and judge. Its for the guys on the inside to see and cheer or see, then haul ass to catch up.