ChromeOptions options = new ChromeOptions(); options.AddArgument("--ignore-certificate-errors"); options.AddArgument("--disable-infobars"); Proxy chromeProxy = new Proxy() { Kind = ProxyKind.Manual, IsAutoDetect = false, HttpProxy = "173.212.202.65:443", SslProxy = "173.212.202.65:443" }; options.Proxy = chromeProxy; IWebDriver driver = new ChromeDriver(options); driver.Navigate().GoToUrl("https://www.facebook.com");