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chrome driver wont start session with given profile C#

So i've been trying to start my selenium session with my own profile and here is my code:
ChromeOptions options = new ChromeOptions();
options.AddArguments("user-data-dir=C:\\Users\\Mymsi\\AppData\\Local\\Google\\Chrome\\User Data");
options.AddArguments("--start-maximized");
IWebDriver driver = new ChromeDriver(#"C:\Users\aliza\Downloads");
driver = new ChromeDriver(options);
but for some reason selenium keeps starting a new session. Can someone tell me what am doing wrong?

Initiate driver as in below code
IWebDriver driver = new ChromeDriver(#"C:\Users\aliza\Downloads", options);

Selenium allow site to save files

I have this popup
and I'm trying to make it either allow, deny with ChromeDriver.
Translates to: secure.runescape.com wants the following
Save files on this device (Allow and deny as options)
Tried:
ChromeOptions chrome_options = new ChromeOptions();
chrome_options.AddArguments("--disable-notifications");
This still showed up the popup
IAlert simpleAlert = driver.SwitchTo().Alert();
simpleAlert.Accept();
This gave the error that there is no alert.

You can disable notfications, code belongs to java. You can change it into C sharp
ChromeOptions chrome_options = new ChromeOptions();
chrome_options.addArguments("--disable-notifications");
System.setProperty("webdriver.chrome.driver","path of chromedriver.exe);
WebDriver driver =new ChromeDriver(chrome_options);

ChromeOptions and DesiredCapabilities relations in Selenium and C#

I've been searching for the correct documentation on how to use ChromeOptions and DesiredCapabilities in the atmosphere of Selenium and C#, but since it's all open sourced, I only find suggestions (and they are not helping sometimes). My question today is how to setup the correct relation between ChromeOptions and DesiredCapabilities. Seems like I'm doing everything correctly, but still getting System.InvalidOperationException: unknown error:cannot parse capability: chromeOptions from unknown error: unrecognized chrome option:Arguments My code is following:
private static ChromeOptions Ops()
{
var options = new ChromeOptions();
options.AddArgument("--no-startup-window");
options.BinaryLocation = #"C:\path\path\path\chromedriver.exe";
return options;
}
private static DesiredCapabilities Caps()
{
DesiredCapabilities caps = new DesiredCapabilities();
caps.SetCapability(CapabilityType.BrowserName, "chrome");
caps.SetCapability(ChromeOptions.Capability,Ops().ToCapabilities());
return caps;
}
IWebDriver driver = new RemoteWebDriver(new Uri("http://localhost:4444/wd/hub"), Caps());
Can't find a place where incorrect Arguments are passing. Has anybody faced the same issues? This is ChromeDriver version 2.28 and selenium WebDriver v 3.3.0 Google Chrome browser version is 52.

You don't need to set the browser name; ChromeOptions does that for you.
According to this comment
The .NET bindings are moving toward a pattern where DesiredCapabilites should not be
used directly, even with RemoteWebDriver. To facilitate that, the ChromeOptions class
has a ToCapabilities() method
And there's this comment
Much like --disable-javascript, the chromedriver will not work if you use --no-startup-window.
It needs to launch a window to establish the connection with the AutomationProxy.
So that gets us to this:
var options = new ChromeOptions();
options.BinaryLocation = #"C:\Program Files (x86)\Google\Chrome\Application\chrome.exe";
IWebDriver driver = new RemoteWebDriver(new Uri("http://localhost:4444/wd/hub"), options.ToCapabilities());
However, are you actually running a grid? If you're testing on a single machine it's even simpler:
IWebDriver driver = new ChromeDriver();

how to use a FirefoxProfile with a IWebDriver

I have lots of problem with Firefox. For most of them, I found lots of solution that use FirefoxDriver object. However I need to use RemoteWebDriver.
All the solutions to my problem use a FirefoxProfile object. is there a way to use this profile for the IWebDriver?
One of the thing I need to do is use the profile to do this:
Firefox webdriver opens first run page all the time
here is how I use my IWebDriver:
driver = new RemoteWebDriver(new Uri("http://localhost:4444/wd/hub"), DesiredCapabilities.Firefox(), TimeSpan.FromSeconds(timeout));

First create the FirefoxProfile and then add it to the capabilities:
// create the profile
var profile = new FirefoxProfile();
// create the capabilities
var capabilities = DesiredCapabilities.Firefox();
capabilities.SetCapability(FirefoxDriver.ProfileCapabilityName, profile.ToBase64String());
// start the remote driver
IWebDriver driver = new RemoteWebDriver(new Uri("http://localhost:4444/wd/hub"), capabilities);

Selenium Webdriver: Specify filepath for Firefox exe

Can someone advise me on how to set the path for the firefox exe file in Selenium (C#).
I'm using the following code presently, however it is not working as hoped:
FirefoxProfile profile = new FirefoxProfile();
profile.SetPreference("webdriver.firefox.bin", "C:\\Program Files (x86)\\Mozilla Firefox\\firefox.exe");
IWebDriver driver = new FirefoxDriver(profile);
Any suggestions would be appreciated.

You should use FirefoxBinary instead of FirefoxProfile as below
FirefoxBinary binary = new FirefoxBinary(new File("path/to/binary"));
FirefoxOptions options = new FirefoxOptions();
options.setBinary(binary);
IWebDriver driver = new FirefoxDriver(options);

Another option is to configure the system property.
System.Environment.SetEnvironmentVariable("webdriver.firefox.bin", 'path/to/binary');