Hi Team,
When a new version of geckodriver/marionette released for firefox, Can we download it and replace it in <katalon installation folder>\configuration\resources\drivers\firefox_win64\ by replacing the name from geckodriver.exe to wires.exe.
No you can’t. We are still using Firefox driver instead of Geckodriver due to Geckodriver is not stable , so even if you try to replace it with Geckodriver and rename it, it will throw errors upon execution.