Method, article of manufacture and apparatus for controlling the operation and appearance of browsers. A controlled browser window comprises a display area for rendering viewable content received from received from network locations. A controlling browser window is configured to control aspects of the controlled browser window. In one embodiment, a program implementing the controlling browser window comprises event handlers which produce a predetermined result in response to events occurring with respect to the controlled browser window. The event handlers may be re-established for each domain change of the controlled browser window.