I want to create new tab facility in my new Web Browser

I am developing a web browser in C# Visual Studio 2010.

I have used a menu bar(for file, edit etc), toolstrip bar(forward,backward,reload buttons etc) and a web browser object till now.

I want to implement new tab facility.

Will I have to use tab control for this purpose? If yes how can I use it in collaboration with the web browser?
I have already written a code for new tab as:

private void btnNewTab_Click(object sender, EventArgs e)
        {

            TabPage addedTabPage = new TabPage("tab title");
            WebBrowser addedWebBrowser = new WebBrowser()
            {
                Parent = addedTabPage,
                Dock = DockStyle.Fill,
            };
            addedWebBrowser.Navigate("www.google.com");
        }

But as soon I click on the new tab button, the mother form looses focus as if another form or something has got focus but nothing shows up finally.

Thanks