Download geckodriver.exe from GitHub mozilla/geckodriver . Move it to a folder like C:\WebDrivers\ and add that folder to your system PATH.
: If you are behind a corporate proxy or VPN, the driver may struggle to reach "localhost." Add system environment variable. Verify Path Overloads : Ensure you are passing the path to the geckodriver executable folder Download geckodriver
from command line: geckodriver --port 4444 See if it starts without errors. Download geckodriver