Just updated FF to 68.0 and now I have a drop down search bar every time I type anything into the address bar. It's in two parts, the top part being blue and the lower being grey. I got rid of the grey part by going into options and removing all the search engines listed. It won't let me remove the last one. So, now I still have the blue drop down bar, and can't figure out how to disable it. Any ideas?