Cannot Start The Driver Service On Http Localhost Selenium Firefox C |top| -

Title: Cannot start the driver service on http://localhost: Error with Selenium and Firefox

How to Verify Firefox Works Alone

Open your terminal and run:

Diagnosing Port Conflicts

By default, GeckoDriver picks a random free port between 10000 and 60000. If that specific port is locked by another application (like Docker, a local web server, or another WebDriver instance), the bind fails. Title: Cannot start the driver service on http://localhost:

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

To prevent this error in the future, always wrap your driver initialization in a try-catch block and ensure you call driver.Quit() in a finally block or a using statement. the following happens behind the scenes:

1. Understanding the Error: What Does "Cannot Start the Driver Service" Mean?

When you write a Selenium script, the following happens behind the scenes: a local web server