Facebook App for Quartz For more information, please visit the following pages:Facebook AppQuartzFacebookWebKitLatest user agents:Mozilla/5.0 (Linux; U; Android 4.3; en-us; Z797C Build/JLS36C) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/Orca-Android;FBAV/293.0.0.13.232;]