How to use Marionette Driver with Selenium 3.0

Many of you know that Selenium 3.0 beta has been released and in this version of Selenium, you can open Firefox in a different way. You need to use Marionette (Gecko) driver to launch Firefox. Before Selenium 3.0 we can launch Firefox by default without any property settings. On the other hand, we need ChromeDriverServer and IEDriverServer executables for chrome and Internet Explorer browsers. Now, with Selenium 3.0 we need to set Marionette (Gecko) driver executable to use Firefox and in this article I will show you how to accomplish this.

Marionette is the next generation of FirefoxDriver.

Step by Step Explanations to use Marionette Driver

Method 1: Set Marionette Driver path as webdriver.gecko.driver Property

Step-1: Go to and download latest release of geckodriver.


Step-2: Create a new folder as “C:\Marionette” and extract the zip file inside this folder.


Step-3: Now, we should set webdriver.gecko.driver System property to the “C:\Marionette\geckodriver.exe” path.

Test Code:

Test Result:


Method 2: Set Marionette path as Environmental Variable

Step-1: Copy the geckodriver.exe’s folder path. In our case it is “C:\Marionette

Step-2: Use RapidEE or go to Windows System Properties -> Environmental Variables  and then click to Path and add this folder to Path variable.


Step-3: Restart the PC that your settings take effect!

After restart, you can directly create FirefoxDriver instance without set the System property every time. Your test code will look like this.



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About the Author:

Onur Baskirt
Onur Baskirt is a senior IT professional with 10+ years of experience. He worked at Bahçesehir University, ST Microelectronics, Huawei and Ericsson as research assistant, design verification engineer and software test leader. Also, he worked as software test leader and software operations manager at Turkey's biggest technology retailer, Teknosa. Now, he is working as Head of Software Testing and Manager of two Development Teams at His current research areas are technical software testing, programming, and computer science. Formerly, he has several research works and papers on digital chip design & verification. His hobbies are sport, dancing, traveling, and nutrition. You can find detailed information about him on his linked-in page.


  1. Gaorutwe Andrew Mosala February 14, 2017 at 7:41 pm - Reply

    Good one, thanks Onur!

    • Onur Baskirt March 4, 2017 at 11:04 pm - Reply

      You are welcome 🙂

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