Software⏱️ 2 min read📅 2026-06-02

How to Fix: How to kill "leftover" Firefox/Geckodriver processes from a failed Python-Selenium automation script?

Fix How to kill "leftover" Firefox/Geckodriv. Use the `psutil` library to find and kil. Step-by-step guide included.

Quick Answer: Use the `psutil` library to find and kill all instances of `firefox.exe` or `geckodriver.exe` in your system's process list.

📋 Table of Contents

  1. 🛑 Killing Leftover Processes
  2. ✅ Best Solutions to Fix It
  3. 🎯 Final Words

To handle the issue of leftover Firefox/Geckodriver processes from a failed Python-Selenium automation script, you can use the following command at the start of your script:

🛑 Killing Leftover Processes

  • Use the ps and kill commands to identify and terminate any remaining Firefox or Geckodriver processes:
  • ps aux | grep firefox | awk '{print $1}' | xargs kill -9, where -9 is the signal sent to the process to force its termination.

✅ Best Solutions to Fix It

Method 1: Script-Based Solution

  1. Step 1: Create a new Python script that uses the subprocess module to run the ps and kill commands.

Method 2: Using a Cron Job with a Script

  1. Step 1: Create a new cron job that runs your Python script at regular intervals.

🎯 Final Words

By implementing one of these methods, you can ensure that leftover Firefox/Geckodriver processes are properly terminated, preventing potential issues and errors in your automation script.

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