bir dakka şöyle

var dir1 = System.IO.Path.GetDirectoryName(Assembly.GetExecut ingAssembly().Location);
var dir = dir1 + "Defaultcookies";
ChromeOptions opt = new ChromeOptions();
opt.AddArgument("--user-agent=Mozilla/5.0 (iPhone; CPU iPhone OS 7_0 like Mac OS X) AppleWebKit/537.51.1 (KHTML, like Gecko) Mobile/11A465 Twitter for iPhone");
opt.AddArguments("--user-data-dir=" + dir1);
var driver = new ChromeDriver(opt);
ChromeOptions options = new ChromeOptions();
driver.Navigate().GoToUrl("https://google.com");