This solution only takes seconds: Click and hold on the Google search bar until you see the 'x remove' appear and then drag that search bar there to remove it.
I can both talk and type entries, or talk and then edit anything wrong before entering and everything else seems to be the same-it still seems to be using Google to search-only technically the search browser is Firefox rather than Chrome, but that's like no big deal on my phone, right? I just needed a search bar widget that gives me a microphone on the keyboard and now I have it and it is still Google search and all that. Now I have a search bar at the top of my phone's home screen again, and if click on it I also have a microphone on my keyboard.
My solution, which is working like a charm? I long tapped the search bar, dragged it to remove it and then replaced it with the Firebox search bar Widget instead. I tried all the usual and suggested fixes but all to no avail.