How to get the Browser info in C# WebDriver?

In order to get info defined in ICapabilities interface, you need to cast IWebDriver instance to RemoteWebDriver. Then you can get the info about BrowserName, IsJavaScriptEnabled, Platform and Version.

IWebDriver driver = new FirefoxDriver();
ICapabilities capabilities = ((RemoteWebDriver)driver).Capabilities;

// then you have
// capabilities.BrowserName;
// capabilities.IsJavaScriptEnabled;
// capabilities.Platform;
// capabilities.Version;