Switching between windows after navigating to another URL fails on FireFox

[arnonax]

Note: this works fine on Chrome, but fails on Firefox.

Repro:

using System;
using System.Collections.Generic;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using OpenQA.Selenium;
using OpenQA.Selenium.Chrome;
using OpenQA.Selenium.Firefox;
using TestAutomationEssentials.Common.ExecutionContext;
using TestAutomationEssentials.MSTest;
using TestAutomationEssentials.Selenium;

namespace IgudTest
{
    [TestClass]
    public class UnitTest1 : TestBase
    {
        [TestMethod]
        public void TestMethod1()
        {
            var driver = new FirefoxDriver();
            AddCleanupAction(() => driver.Quit());
            var browser = new Browser("Main Window", driver, TestExecutionScopesManager);
            var mainWindow = browser.MainWindow;
            driver.Url = @"file:///C:/temp/FirstWindow.html";
            var link = browser.WaitForElement(By.Id("myLink"), "Link");
            var newWindow = browser.OpenWindow(() => link.Click(), "New window");
            Console.WriteLine(newWindow.Title);
            Assert.AreEqual(mainWindow.Title, driver.Title);
        }
    }
}