Talk:Friends/@comment-24474546-20150211180225/@comment-5670466-20150211191542

The white bar at the top of the page there should be a little circle of your picture (in your case the white annoymous picture) click on that and there should be a dropdown menu with "log out" at the very bottom of that list. When you go to log back in there may be an option to stay logged in, usually this is checked by default but you can uncheck it and it should log you out once you close the browser. It may also be your browser and you may have to manually log out each time you log in.