We saw earlier that; Selenium WebDriver supports various programming languages and various web browsers for testing. Selenium WebDriver supports various browsers like IE, Firefox, Google Chrome, Opera. 

It can also be used on Android & iOS. Selenium WebDriver can support all operating systems where these browsers can run.

Suggested post to read: Introduction to Selenium 

Majorly people use Mozilla Firefox. In order to use Mozilla Firefox, we do not need to do any special configurations, but for using other browsers like Chrome and IE, we need to set system properties.

Let us talk one by one.

For using Mozilla Firefox in Selenium Webdriver, we do not need any configurations setup.

Just create a reference variable of the WebDriver instance and assign it to the instance of FiirefoxDriver class.

So, below line of code will launch Firefox web browser.

WebDriver driver = new FirefoxDriver();

Now, you can use “driver” instance for further process like navigating to URL and proceed with your testing.

To know more about Interface and to understand  Why do we write WebDriver driver = new FirefoxDriver() ?, refer below post

Why do we write WebDriver driver = new FirefoxDriver()? 

In order to use Google Chrome for executing test cases, we need to set system property for “Webdriver.chrome.driver” with executable file of chrome driver (chromedriver.exe).

You can download chromedriver.exe file from here.
 

Once the chromedriver.exe file is downloaded, set system properties as –

      System.setProperty("webdriver.chrome.driver", "C:chromedriver.exe");

(assuming that it is stored at C drive, else provide your file location).

Now, once system property is set, we can launch chrome browser using below line of code – 

Now, you can use “driver” instance for further process like navigating to URL and proceed with your testing.

In order to use Internet Explorer for executing test cases, again, as like we did for google chrome, we need to set system property for “Webdriver.ie.driver” with executable file of IEDriverServer. (IEDriverServer.exe).

You can download IEDriverServer.exe file from here.

Once the IEDriverServer.exe file is downloaded, set system properties as –

(assuming that it is stored at C drive, else provide your file location).

Now, once system property is set, we can launch chrome browser using below line of code –

Now, you can use “driver” instance for further process like navigating to URL and proceed with your testing.

Hope this helps. Drop your comments.