Can someone know if I have viewed their facebook profile?

[Ruth]

There is an account that is locked, and to get into their profile you need to be friends. But for some reason I can get into their profile, and I'am not friends with them. But with a different accounts it is locked. I didnt try to, I was just able to get in. anyway do they know if i have been on their facebook profile or seen their pictures??

[xXDaGamerChrisXx]

No there is no possible way that they could. They are phony facebook apps that say that they can track people on other people's facebook...They are all fake though...