Multiple Edge browser windows test in dotnet 6 C# with Selenium 4

ReadMe.md

Launch multiple Edge browser windows under Selenium 4 control

Setup steps

1. Scaffold a dotnet console application: dotnet new console -n MultiBrowserTester
2. Drop in the MultipleWindowTest.csproj file or...
3. Add Selenium 4: dotnet add package Selenium.WebDriver and...
4. Add WebDriverManager: dotnet add package WebDriverManager, then...
5. How to download the correct WebDriver for your Edge browser: https://learn.microsoft.com/en-us/microsoft-edge/webdriver-chromium/?tabs=c-sharp#download-microsoft-edge-webdriver
6. Decompress and place the msedgedriver.exe in the same folder as your Program.cs class
7. Drop in the Program.cs file
8. Run the solution: dotnet run from within the project folder

MultipleWindowTest.csproj

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <OutputType>Exe</OutputType>
    <TargetFramework>net6.0</TargetFramework>
    <ImplicitUsings>enable</ImplicitUsings>
    <Nullable>enable</Nullable>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Selenium.WebDriver" Version="4.9.0" />
    <PackageReference Include="WebDriverManager" Version="2.16.2" />
  </ItemGroup>

</Project>

Program.cs

// usings
using OpenQA.Selenium.Edge;

// generic driver options
List<string> Options = new List<string>() {
    // "headless", // add this to run the browsers invisibly
    "no-sandbox",
    "incognito",
    "disable-gpu",
    "ignore-certificate-errors",
    "no-default-browser-check",
    "disable-web-security",
    "allow-insecure-localhost",
    "allow-running-insecure-content",
    "acceptInsecureCerts=true",
    "proxy-server='direct://'",
    "proxy-bypass-list=*",
    "disable-extensions",
    "disable-infobars",
    $"--window-size=1024,768",
};

// edge options 1
var options = new EdgeOptions();
options.LeaveBrowserRunning = false;
options.AcceptInsecureCertificates = true;
options.BinaryLocation = @"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe";

// add options 1 arguments
Options.ForEach(arg => { if (!String.IsNullOrEmpty(arg)) options.AddArgument(arg); });

// Important: Define profile folder for first browser
options.AddArgument($@"--user-data-dir={Directory.GetCurrentDirectory()}\prof-1");

// edge options 2
var options2 = new EdgeOptions();
options2.LeaveBrowserRunning = false;
options2.AcceptInsecureCertificates = true;
options2.BinaryLocation = @"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe";

// add options 1 arguments
Options.ForEach(arg => { if (!String.IsNullOrEmpty(arg)) options2.AddArgument(arg); });

// Important: Define profile folder for second browser
options2.AddArgument($@"--user-data-dir={Directory.GetCurrentDirectory()}\prof-2");

// initialise driver service
using (var _service = OpenQA.Selenium.Edge.EdgeDriverService.CreateDefaultService(Directory.GetCurrentDirectory(), @"msedgedriver.exe"))
{
    _service.Start();

    // initialise first edge driver
    using (var driver = new EdgeDriver(_service, options))
    {
        // define short default wait times
        driver.Manage().Timeouts().ImplicitWait = new TimeSpan(0, 0, 2);
        driver.Manage().Timeouts().PageLoad = new TimeSpan(0, 0, 20);
        driver.Manage().Timeouts().AsynchronousJavaScript = new TimeSpan(0, 0, 10);
        
        // send first browser window to a page
        driver.Navigate().GoToUrl("https://www.google.com/");

        // initialise second edge driver
        using (var driver2 = new EdgeDriver(_service, options2))
        {
            // define short default wait times
            driver2.Manage().Timeouts().ImplicitWait = new TimeSpan(0, 0, 2);
            driver2.Manage().Timeouts().PageLoad = new TimeSpan(0, 0, 20);
            driver2.Manage().Timeouts().AsynchronousJavaScript = new TimeSpan(0, 0, 10);

            // send second browswer window to a page
            driver2.Navigate().GoToUrl("https://www.youtube.com/");

            // wait so the user can see what's happening
            Thread.Sleep(5000);

            // stop browsers
            driver.Quit();
            driver2.Quit();
        }
    }
}

// using blocks will tidy up processes - check Task Manager for `Microsoft Edge WebDriver`