这是我目前所拥有的(虽然 Chrome 我没有找到任何有用的文章，除了使用 FindWindowEx(我不是特别喜欢那种方法，个人).

Here's what I have so far (though Chrome I'm not finding any helpful articles on, other than using FindWindowEx (I don't particularly like that method, personally).

public class BrowserLocation
{
    /// <summary>
    /// Structure to hold the details regarding a browed location
    /// </summary>
    public struct URLDetails
    {
        /// <summary>
        /// URL (location)
        /// </summary>
        public String URL;

        /// <summary>
        /// Document title
        /// </summary>
        public String Title;
    }

    #region Internet Explorer

    // requires the following DLL added as a reference:
    // C:WindowsSystem32shdocvw.dll

    /// <summary>
    /// Retrieve the current open URLs in Internet Explorer
    /// </summary>
    /// <returns></returns>
    public static URLDetails[] InternetExplorer()
    {
        System.Collections.Generic.List<URLDetails> URLs = new System.Collections.Generic.List<URLDetails>();
        var shellWindows = new SHDocVw.ShellWindows();
        foreach (SHDocVw.InternetExplorer ie in shellWindows)
            URLs.Add(new URLDetails() { URL = ie.LocationURL, Title = ie.LocationName });
        return URLs.ToArray();
    }

    #endregion

    #region Firefox

    // This requires NDde
    // http://ndde.codeplex.com/

    public static URLDetails[] Firefox()
    {
        NDde.Client.DdeClient dde = new NDde.Client.DdeClient("Firefox", "WWW_GetWindowInfo");
        try
        {
            dde.Connect();
            String url = dde.Request("URL", Int32.MaxValue);
            dde.Disconnect();

            Int32 stop = url.IndexOf('"', 1);
            return new URLDetails[]{
                new URLDetails()
                {
                    URL = url.Substring(1, stop - 1),
                    Title = url.Substring(stop + 3, url.Length - stop - 8)
                }
            };
        }
        catch (Exception)
        {
            return null;
        }
    }

    #endregion
}

class Program
{
    static void Main(string[] args)
    {
        Console.WriteLine("Internet Explorer: ");
        (new List<BrowserLocation.URLDetails>(BrowserLocation.InternetExplorer())).ForEach(u =>
        {
            Console.WriteLine("[{0}]
{1}
", u.Title, u.URL);
        });
        Console.WriteLine();

        Console.WriteLine("Firefox:");
        (new List<BrowserLocation.URLDetails>(BrowserLocation.Firefox())).ForEach(u =>
        {
            Console.WriteLine("[{0}]
{1}
", u.Title, u.URL);
        });
        Console.WriteLine();
    }
}