Selenium-Tweaking proxy server for firefox and JavaScriptExecutor

Tweaking proxy server for firefox and JavaScriptExecutor

FirefoxProfile profile = new FirefoxProfile();
profile.setPreference("network.proxy.type", 4);
profile.setPreference("network.proxy.http", "localhost");
WebDriver dr = new FirefoxDriver(profile);

Integer values are only allowed for the "network.proxy.type".

0 - Direct connection/ Proxy not allowed.
1 - Manual proxy
2 - Proxy auto-configuration
4 - Auto-detect proxy
5 - Use system proxy

While there are issues performing click on any element using element.click, JavaScriptExecutor can be used.
package com.p1;

import java.util.concurrent.TimeUnit;

import org.openqa.selenium.By;
import org.openqa.selenium.JavascriptExecutor;
import org.openqa.selenium.WebDriver;
import org.openqa.selenium.WebElement;
import org.openqa.selenium.firefox.FirefoxDriver;
import org.openqa.selenium.firefox.FirefoxProfile;

public class JavaScriptExecutorEg {


       public static void  main(String[] args)  {


           FirefoxProfile profile = new FirefoxProfile();
           profile.setPreference("network.proxy.type", 4);
           profile.setPreference("network.proxy.http", "localhost");
           WebDriver dr = new FirefoxDriver(profile);

           dr.manage().timeouts().implicitlyWait(30, TimeUnit.SECONDS);

           dr.manage().window().maximize();
           dr.navigate().to("http://www.bing.com/");
           WebElement SignBTn = dr.findElement(By.id("id_l"));
           JavascriptExecutor executor = (JavascriptExecutor)dr;
           executor.executeScript("arguments[0].click();", SignBTn);

       }

}