Still doesn't make sense. It should be the Hebrew equivilent of "shift" to make sense, since it is talkikng about "shift press f4" in terms of computer user information.
Press CTRL+F4 in order to view which people watches your profile
that is a practical joke which posted for quite long time throughout Facebook's profiles, and became very popular among Israeli surfers. The moment one falls by this trick, it's current page would closed. It is for call (cucmis team) to decide wether that translation is appropriate
Â