just came across this thing, there is no privacy of your profile pic on fb even if you change it setting to only me or friend. try this open any fb profile and right click on that non click able profile pic and click copy and paste it in ur url tab. then here will be like 160160 change that to 720 720. It will be twice and press enter u will c the whole image plus u can save it edit it bla bla m shocked really.