Multiple web browser tabs in c#

webBrowser1.Navigate(new Uri("http://infosoft.lk"));

            WebBrowser newweb = new WebBrowser();
            newweb.Navigate(new Uri("http://infosoft.lk"));
            newweb.Dock = DockStyle.Fill;

            TabPage tabPage1 = new TabPage();
            tabControl1.TabPages.Add(tabPage1);
            newweb.Parent =  tabPage1;