@leocg I have "Use a prediction service to help complete searches and URLs typed in the address bar" switched off.
I don't know the terminology. I mean I type a word into the address bar and it fills in things I've typed before. For example, type "Joe Bloggs" into the address bar and it will search for Joe Bloggs. Now type "Joe" into the address bar and it will fill it to "Joe Bloggs". If I simply type "Joe" and press enter without looking, it searches for the wrong thing.