Your connection is not secure - using Selenium.WebDriver v.3.6.0 + Firefox v.56

Question

I\'m writing tests with Selenium + C# and I face an important issue because I didn\'t found solution when I test my site with secure connection (HT

Answer 1

For me, the profile setting AcceptUntrustedCertificates was not enough, I also had to set option security.cert_pinning.enforcement_level. My startup looks like

// no idea why FirefoxWebDriver needs this, but it will throw without
// https://stackoverflow.com/questions/56802715/firefoxwebdriver-no-data-is-available-for-encoding-437
CodePagesEncodingProvider.Instance.GetEncoding(437);
Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);

var service = FirefoxDriverService.CreateDefaultService(Environment.CurrentDirectory);
service.FirefoxBinaryPath = Config.GetConfigurationString("FirefoxBinaryPath"); // path in appsettings

var options = new FirefoxOptions();
options.SetPreference("security.cert_pinning.enforcement_level", 0);
options.SetPreference("security.enterprise_roots.enabled", true);

var profile = new FirefoxProfile()
{
    AcceptUntrustedCertificates = true,
    AssumeUntrustedCertificateIssuer = false,
};
options.Profile = profile;

var driver = new FirefoxDriver(service, options);