I went through every possible setting to turn off autocomplete in every section, every dropdown, everything in settings but somehow Firefox wants to autofill email addresses and login info for every site with a black frame that tries to pop down below every box. Where did firefox get my email address? I never gave my email address to firefox. I need to find out where that info is coming from, delete it, and remove any place where it might be stored. Is this some kind of virus?