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Selenium ChromeDriver C# only works in headless mode

Project Properties:
C# .NET Framework 4.7.2
Repository: https://github.com/theomnislayer/ChromeDriverError
Visual Studio 2019 Pro. The Repo above should work with VS Code
Nuget Packages installed:
Selenium.WebDriver 3.141.0
Selenium.Support 3.141.0
Selenium.WebDriver.ChromeDriver 94.0.4606.6100
Xunit 2.4.1
Xunit.Runner.VisualStudio 2.4.3
Error Description:
Starting from Chrome 93.x and ChromeDriver 93.x or newer
Without the --headless argument in chromeoptions, the following error is encountered:
Message:
OpenQA.Selenium.WebDriverException : unknown error: Chrome failed to start: crashed.
(unknown error: DevToolsActivePort file doesn't exist)
(The process started from chrome location C:\Program Files (x86)\Google\Chrome\Application\chrome.exe is no longer running, so ChromeDriver is assuming that Chrome has crashed.)
Expected behavior: Chrome should NOT crash even without the headless argument
Replicating the error:
Sample Code:
public void DisabledHeadless()
{
ChromeOptions options = new ChromeOptions();
options.AddArgument("--disable-extensions");
options.AddArgument("--safebrowsing-disable-download-protection");
options.AddArguments("no-sandbox");
options.AddArgument("enable-automation");
options.AddArgument("test-type=browser");
options.AddUserProfilePreference("download.prompt_for_download", false);
options.AddUserProfilePreference("safebrowsing", "enabled");
options.AddUserProfilePreference("disable-popup-blocking", "true");
//options.AddArgument("--headless");
var driver = new ChromeDriver(
Directory.GetCurrentDirectory(),
options,
TimeSpan.FromSeconds(30));
driver.Navigate().GoToUrl("https://www.google.com");
}
Run the test, Error is encountered.
Workaround:
Sample Code:
public void EnabledHeadless()
{
ChromeOptions options = new ChromeOptions();
options.AddArgument("--disable-extensions");
options.AddArgument("--safebrowsing-disable-download-protection");
options.AddArguments("no-sandbox");
options.AddArgument("enable-automation");
options.AddArgument("test-type=browser");
options.AddUserProfilePreference("download.prompt_for_download", false);
options.AddUserProfilePreference("safebrowsing", "enabled");
options.AddUserProfilePreference("disable-popup-blocking", "true");
//Weird = Starting from V.93, without this argument, CHROME CRASHES!
options.AddArgument("--headless");
var driver = new ChromeDriver(
Directory.GetCurrentDirectory(),
options,
TimeSpan.FromSeconds(30));
driver.Navigate().GoToUrl("https://www.google.com");
}
Is there a fix for this without headless enabled? Errors were not encountered with Chrome 92 or prior. Thanks in advance!

Selenium C# FirefoxDriver not working for latest Selenium & Firefox

The Selenium is supposed to work with Firefox without any drivers out of the box, however I found that it is not the case with the latest Selenium & Firefox (install just days ago, Selenium 3 & Firefox ERS 52.5).
I'm following "Selenium C# and NUnit Pain Free Start Guide" as a total newbie, but found the simple Selenium C# NUnit test is not working for Firefox.
Here is my C# code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using NUnit.Framework;
using OpenQA.Selenium;
using OpenQA.Selenium.Firefox;
using OpenQA.Selenium.Chrome;
namespace NewSeleniumProject
{
[TestFixture]
public class MyFirstTest
{
IWebDriver driver;
[SetUp]
public void SetupTest()
{
// driver = new ChromeDriver();
driver = new FirefoxDriver();
//driver = new FirefoxDriver(new FirefoxBinary(#"C:\Program Files (x86)\Mozilla Firefox\Firefox.exe"), new FirefoxProfile(), TimeSpan.FromMinutes(10));
//var options = new FirefoxOptions();
//options.BrowserExecutableLocation = #"C:\Program Files (x86)\Mozilla Firefox\firefox.exe";
//driver = new FirefoxDriver(options);
}
[Test]
public void myFirstTest()
{
driver.Navigate().GoToUrl("http://www.swtestacademy.com");
Assert.AreEqual("SW Test Academy - Software Test Academy", driver.Title);
driver.Close();
driver.Quit();
}
}
}
And the following are my journeys to get it working.
First of all, the driver = new ChromeDriver() works for me without any hitch.
When I was using 32b Firefox ERS 52 with driver = new FirefoxDriver();, I'm getting the "Unable to determine the current version of FireFox using the registry" error, however none of the answers from Unable to determine the current version of FireFox after updated to 28.0 solves my problem. So I tried the "Try uninstalling Firefox and then re-installing it. That's what I would do" one.
Wit 64b Firefox ERS 52 (and driver = new FirefoxDriver();), I'm getting the "OpenQA.Selenium.WebDriverException : Cannot find Firefox binary in PATH or default install locations. Make sure Firefox is installed." error.
When using the var options = new FirefoxOptions(), for both 32b and 64b Firefox, I'm getting "OpenQA.Selenium.WebDriverException : The HTTP request to the remote WebDriver server for URL http://localhost:6985/session timed out after 60 seconds."
Again, the whole setup I'm following is from "Selenium C# and NUnit Pain Free Start Guide". What else I'm missing? Thx.
UPDATE:
This question is not about the error:
OpenQA.Selenium.DriverServiceNotFoundException : The geckodriver.exe file does not exist in the current directory or in a directory on the PATH environment variable.
which I've fixed by downloading the driver from https://github.com/mozilla/geckodriver/releases.

Make sure versions match first. Then try this way of doing for Firefox browser. I faced same challenges before but this way of calling Firefox solved the issue. Hope it might help
var binary = new FirefoxBinary(#"----Firefox.exe Local Path------");
var profile = new FirefoxProfile();
FirefoxDriverService service = FirefoxDriverService.CreateDefaultService(#"--GeckoDriver Path-----");
service.FirefoxBinaryPath = #"----Firefox.exe Local Path------";
driverInstance = new FirefoxDriver(service);

So yes, you will need to Dl the driver and place that in your bin folder of your application and pass the path location of the .exe to the driver service using the options() with {}.
I have the same thing, however there is a difference between the two. Firefox is installed in the 64 bit folder and chrome is located in the 32 bit folder (x86) Program Files and i believe this is where there issue lies in the Selenium only looks at the 32 bit folders for the applications .exe.
I ran into the same issue when i started using any other driver apart from edge.
another issue that you may run into with the new gecko driver is that firefox will not open on the requested URL. Note that this was in VB. Should be the same though. I may just run a test.

Geckodriver with selenium 3.0 throws DriverServiceNotFoundException

I need help to upgrade to geckodriver using C#. I downloaded geckodriver from here. Downloaded windows 64bit version as I'm on windows 10 64bit. Copied the driver to my project location.
Environment.SetEnvironmentVariable("webdriver.gecko.driver", #"C:\Git\AutomationTest\Drivers\geckodriver.exe");
FirefoxDriverService driverService = FirefoxDriverService.CreateDefaultService();
driverService.FirefoxBinaryPath = #"C:\Program Files (x86)\Mozilla Firefox\firefox.exe";
driverService.HideCommandPromptWindow = true;
driverService.SuppressInitialDiagnosticInformation = true;
driver = new FirefoxDriver(driverService, new FirefoxOptions(), TimeSpan.FromMilliseconds(600));
It threw error:
Initialization method UnitTestProject1.UnitTest1.Init threw exception. OpenQA.Selenium.DriverServiceNotFoundException: OpenQA.Selenium.DriverServiceNotFoundException: The geckodriver.exe file does not exist in the current directory or in a directory on the PATH environment variable. The driver can be downloaded at https://github.com/mozilla/geckodriver/releases..
Result StackTrace:
at OpenQA.Selenium.DriverService.FindDriverServiceExecutable(String executableName, Uri downloadUrl)
at OpenQA.Selenium.Firefox.FirefoxDriverService.CreateDefaultService()
at OpenQA.Selenium.Firefox.FirefoxDriver..ctor(FirefoxOptions options)
at OpenQA.Selenium.Firefox.FirefoxDriver..ctor()
at UnitTestProject1.UnitTest1.Init()
Tried renaming it to 'Wires' but didn't work. Searched so many questions on SO, didn't find a solution with Selenium 3.0.
Added the path of the folder that has the driver to System variables path and tried using DesiredCapabilities.
DesiredCapabilities cap = DesiredCapabilities.Firefox();
cap.SetCapability("marionette", true);
var driver = new RemoteWebDriver(cap);
Using Selenium 3.0, FF 47.0.1, gecko v0.11.1
Can someone help me with this issue.
Thanks.

Try this:
FirefoxDriverService service = FirefoxDriverService.CreateDefaultService("C:\Git\AutomationTest\Drivers");
IWebDriver driver = new FirefoxDriver(service);

I updated Firefox to Version 49.0.2 and updated my selenium driver to 3.0.0 from nuget packages. Added Firefox path to the system path variables. That's it I didn't change anything else in my coding i.e, declaration of Firefox. After updating I'm having too many issues like wait and System.Net.Web exception. I need to fix some of my test cases but it works.

c# Selenium 2.53 moving to marionette driver after firefox upgrade to 47

I am trying to move into the upgraded firefox web browser automation using selenium. It seems that selenium needs marionette driver to continue working. I followed the instructions set by the devs,
downloaded the driver
renamed it to wires.exe
The following code didnt manage to properly set the PATH to a custom path.
System.Environment.SetEnvironmentVariable("webdriver.gecko.driver", "#C:\DOWNLOADS\wires.exe")
so i added wires.exe to the debug\bin folder and then wires.exe worked properly but i got the following error
System.InvalidOperationException was caught Message=entity not found Source=WebDriver
this is the code i use to start webdriver
FirefoxOptions option1 = new FirefoxOptions();
option1.IsMarionette = true;
option1.AddAdditionalCapability("marionette", true);
driver = new FirefoxDriver(option1);

I too got the "Entity Not Found" error using FirefoxDriver(new FirefoxOptions()). It appears to be looking for firefox.exe in C:\Program Files (x86)\Nightly and not finding it. I found this working :
FirefoxDriverService service = FirefoxDriverService.CreateDefaultService();
service.FirefoxBinaryPath = #"C:\Program Files (x86)\Mozilla Firefox\firefox.exe";
IWebDriver driver = new FirefoxDriver(service);

I try with this and it's working:
Install FirefoxDevEdition
Download geckodriver.exe
FirefoxDriverService service = FirefoxDriverService.CreateDefaultService(#"C:\Users\jmalpartida\Downloads\geckodriver-v0.8.0-win32", "geckodriver.exe");
service.Port = 64444;
service.FirefoxBinaryPath = #"C:\Program Files (x86)\Firefox Developer Edition\firefox.exe";
IWebDriver driver = new FirefoxDriver(service);

First of all, you need to add the driver to your system path, not as an env variable.
Second, you need to set the flag in a desired capability, not a Firefox option. See: Marionette Webdriver
As such for remote webdriver:
DesiredCapabilities capabilities = DesiredCapabilities.Firefox();
capabilities.SetCapability("marionette", true);
var driver = new RemoteWebDriver(capabilities);
To add the webdriver to your windows path:
The easiest way is to open the start menu > search for environment > open edit the system environment variables > click on environment variables > search in the list for Path > click on edit > add ;C:\path\to\webdriver\location\wires.exe to the end and click save.
For your local (non-webdriver) tests you are right, you can run your webdriver using the following:
var driver = new FirefoxDriver(new FirefoxOptions());
You should not have to use
option1.IsMarionette = true;
option1.AddAdditionalCapability("marionette", true);
If you have set the driver path correctly in your path environment variable.

Browser extension testing with selenium c# in Saucelabs

Is it possible to test browser extensions with selenium c# in Saucelab. If so how and where to place the latest extension package in saucelab VM so that selenium launches the browser with the extension.

For Firefox and chrome it is possible by providing capabilities or profile. For Example in case of firefox:
File file = new File("firebug-1.8.1.xpi");
FirefoxProfile firefoxProfile = new FirefoxProfile();
firefoxProfile.addExtension(file);
firefoxProfile.setPreference("extensions.firebug.currentVersion", "1.8.1"); // Avoid startup screen
WebDriver driver = new FirefoxDriver(firefoxProfile);