Yes that was an add-on. I'm hunting down replacement add-on now. First and foremost is the better love/hate buttons. With your login issue what version iPhone is that & what browser. Ignorant android user here.Another thing I have noticed, the menu bar used to stay visible underneath the browser menu bar, but it doesn't any more.
You have to scroll all the way to the top of the page before it becomes visible again. Chrome on Win 8.1.