Just now, I wanted to check what people that are not on my friends list can see when they look at my profile, so I started Opera. I was logged into Facebook on Opera, and had a look then I closed Opera and switched back to Firefox… and I had been logged out there too.

What caused this? I mean, from what I understand, cookies are browser specific. Firefox and Opera have their own cookies and I have no addons or software to synchronize them.

Topics: cookies, Firefox, Facebook, opera, browsers