A system running on a mobile device such as a smartphone is configured to expose a user interface (UI) to enable a user to specify web pages that can be pinned to a start screen of the device. Once pinned, the user may launch a web page by voice command from any location on the UI or from within any experience that is currently being supported on the device. Thus, the user can be on a call with a friend talking about a new video game and then use a voice command to launch a web browser application on the mobile device that navigates to a pinned web page having information about the game's release date. Web pages can be readily pinned and unpinned from the start screen through the UI. When a web page is unpinned from the start screen, the system disables voice web navigation for it.
