The Web Browser control is an ActiveX incarnation of the Internet Explorer browser (IE4). It is the control named "Microsoft Web Browser" in the Tools - Options - Controls - ActiveX Controls list.
Certainly the most powerful control you can use with VFP. (and Ken X 's favorite control).
Check out the Fox Foundation Classes that come with VFP. It contains a class library called _webview.vcx that contains a good working example. You can access the FFC through the Component Gallery with DO (_gallery).