Not really, no. The heuristic is very carefully designed to minimize mistakes and glitches. Practically guaranteed no configuration bits would be added in that

Not really, no. The heuristic is very carefully designed to minimize mistakes and glitches. Practically guaranteed no configuration bits would be added in that area since the code has to work for a few hundred million people hundreds to thousands of times a day (yeah...). However, you can delete autocomplete entries by highlighting them with arrow keys and then using Shift+Delete. (Contrary to intuition, this will not put them in your clipboard.) I'm not sure where this started but I remember using it in Firefox about 10 years ago as well.