Woke up this morning to find firefox's back/forward buttons and refresh unresponsive. They are just greyed out. Also, when I open Firefox it usually goes to my home page, now it just opens to an "untitled" page. I tried resetting the home page, only to find it was set correctly. The only way to get to the home page is to hit the home button. The only thing that happened overnight, that I can see, is updates on 'screenshot-program' and 'smarterfox.' I don't know what to do about it, please help?