WebDriverException: Message: invalid argument: can’t kill an exited process with GeckoDriver, Selenium and Python on RaspberryPi3
If you are running Firefox on a system with no display, make sure you use headless mode. from selenium import webdriver from selenium.webdriver.firefox.options import Options options = Options() options.headless = True driver = webdriver.Firefox(options=options) Also, make sure you have compatible versions of Firefox, Selenium, and Geckodriver: https://firefox-source-docs.mozilla.org/testing/geckodriver/Support.html