[throwit1979]

Huh? All browsers on my rMBP upscales images( and css font-size specified in pixels )to match what the dimensions would be if the resolution were that of a standard 72-100dpi monitor.

Are there browsers where virtual pixels are not automatically scaled on retina displays?

[joeblau]

What resolution are your running your rMBP at? I'm on 1920. When I change my settings, to the default resolution, things get worse.