No-one actually writes a web browser. Everyone just uses the web browser control to render web pages. You'd have to write your own tabs to get what you want, and so you start to realise that what you're doing is not learning how to program, but learning how to call an API. Do something sensible, the world does not need another skinned version of IE.
If you were to learn to use google, though, you could find snippets like this
] to do what you're after.