I recently had an update installed and since then, Firefox has not worked; 1. When I open it goes immediately to full screen. Not what I need. 2. I cannot get any sites to come up. even when I try to get a tab, it just said "new Tab" and will not display my request. I reinstalled Firefox from the web site using Safari, but it continues to do the same thing. I cannot use it like the and would appreciate learning what I can do to fix this.