!full! - Cannot Start The Driver Service On Http Localhost Selenium Firefox C

Partial downloads, corrupted binaries, or broken Firefox profiles.

using OpenQA.Selenium; using OpenQA.Selenium.Firefox; or broken Firefox profiles. using OpenQA.Selenium

from selenium import webdriver from selenium.webdriver.firefox.service import Service from selenium.webdriver.firefox.options import Options or broken Firefox profiles. using OpenQA.Selenium

This is the culprit in 80% of cases. You cannot use arbitrary versions of Selenium, GeckoDriver, and Firefox. They speak a specific protocol. If the versions don't align, GeckoDriver starts (you might see a flash of a console window) and then immediately crashes, taking the localhost service down with it. or broken Firefox profiles. using OpenQA.Selenium