this has never happened before. I was using firefox and all of a sudden nothing on firefox was working so I closed the browser and opened it back up. This little popup came up telling me to choose a user. There was djcripsen and default. I chose djcripsen and it said it was already in use. So then I chose default and now my browser is back to default settings and all my bookmarks are different. how do I get back to that screen to change the user?