Forge Headers for provided Webclient

public static void ForgeHeaders(this WebClient client)
{
    Random r = new Random();
    client.Headers["X-Forwarded-For"] = r.Next(0, 255) + "." + r.Next(0, 255) + "." + r.Next(0, 255) + "." + r.Next(0, 255);
    client.Headers["User-Agent"] = "Mozilla/" + r.Next(3, 5) + ".0 (Windows NT " + r.Next(3, 5) + "." + r.Next(0, 2) + "; rv:2.0.1) Gecko/20100101 Firefox/" + r.Next(3, 5) + "." + r.Next(0, 5) + "." + r.Next(0, 5);
}