My FB session did not expire. Logins usually expire after like 2-week's time or something, so it's possible a whole bunch of people just reached that moment simultaneously.

Edit*: My wife's FB kicked her out. She has to log back in, but mine is still good. Weird.

My FB session did not expire. Logins usually expire after like 2-week's time or something, so it's possible a whole bunch of people just reached that moment simultaneously.