Questions on the "Like" system?

When I click on "3 likes" ( or any number of likes) the pop-up shows the list of persons who made the likes. This box or overlay does not go away by itself or when clicked on or away from it. Tested in latest FF and other browsers. How to make it disappear?

How can I find a list of all the "Likes" I have made?

How can a List of Pages/Groups etc liked by an user be made visible in her profile?