Cannot Start The Driver Service On Http Localhost Selenium Firefox C Site

Cannot Start The Driver Service On Http Localhost Selenium Firefox C Site

🚀 Troubleshooting "Cannot start the driver service" in Selenium C#

Add a system environment variable NO_PROXY with the value localhost. 🚀 Troubleshooting "Cannot start the driver service" in

  • Download matching geckodriver for your OS and Firefox version.
  • Place it in your project or a known folder and set executable permissions (chmod +x on Linux/macOS).

2. The Selenium-Firefox Ecosystem: GeckoDriver, Localhost, and Ports

Before fixing the error, you must understand the three core components: Download matching geckodriver for your OS and Firefox

The Fix – Increase the timeout:

The "Bad" Way (Prone to errors):

Checking the PATH

  1. Open your Start Menu and type "Environment Variables".
  2. Click "Edit the system environment variables".
  3. Click "Environment Variables".
  4. Under "System variables", find the variable named Path.
  5. Does it contain the path to the folder holding geckodriver.exe?

Happy testing — and may your driver services always start on the first try. 2. The Selenium-Firefox Ecosystem: GeckoDriver

from selenium import webdriver
from selenium.webdriver.firefox.service import Service