HOW TO ADD AN ADD-ON TO FIREFOX INSTANCE OF SELENIUM WEBDRIVER?

We can also run the Firefox web browser with addons/extensions using capabilities to perform automation testing.

Read about HOW TO CREATE .XPI FILE FROM ALREADY INSTALLED FIREFOX ADD-ON?

Here is the very basic program to run Firefox web browser with addons/extensions using capabilities.

Java Source code:

package com.helloselenium.selenium.test;

import java.io.File;

import org.openqa.selenium.WebDriver;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.firefox.FirefoxProfile;
import org.openqa.selenium.remote.DesiredCapabilities;

public class RunFirefoxWithAddons{

 public static void main(String[] args) { 

  WebDriver driver = null;

  FirefoxProfile firefoxProfile = new FirefoxProfile();
  File addonpath = new File("path of addon/extension (.xpi file)");
  firefoxProfile.addExtension(addonpath);

  DesiredCapabilities capabilities = DesiredCapabilities.firefox();
  capabilities.setCapability(FirefoxDriver.PROFILE, profile);

  driver = new FirefoxDriver(capabilities);

  driver.get("http://www.helloselenium.com");
  
  driver.quit();
 }

}

Detailed explanation for the above program is as follows:

Following code is the required packages for Java File.

import java.io.File;

Following code is the required packages for Selenium Webdriver.

import org.openqa.selenium.WebDriver;

Following code is the required packages for Firefox browser and Selenium remote capabilities.

import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.firefox.FirefoxProfile;
import org.openqa.selenium.remote.DesiredCapabilities;

Following code is to initialize the webdriver.

WebDriver driver = null;

Following code is to define Firefox profile.

FirefoxProfile firefoxProfile = new FirefoxProfile();

Following code is to define filepath of firefox addon/extension.

File addonpath = new File("path of addon/extension (.xpi file)");

Following code is to add extension into defined Firefox profile.

firefoxProfile.addExtension(addonpath);

Following code is to define Firefox capability.

DesiredCapabilities capabilities = DesiredCapabilities.firefox();

Following code is to set Firefox capability.

capabilities.setCapability(FirefoxDriver.PROFILE, profile);

Following code is to initialize the firefox driver.

driver = new FirefoxDriver(capabilities);

Following code is to open the hello selenium blog in firefox browser.

driver.get("http://www.helloselenium.com");

You can also use the following code is to open the hello selenium blog in browser.

driver.navigate().to("http://www.helloselenium.com");

Following code is to quit the driver instance.

driver.quit();

You can also use the following code is to close the driver instance.

driver.close();