The notifications are allowed to be full webpages - which can then communicate back to the parent window. (or extension) This will be a reasonable alternative

The notifications are allowed to be full webpages - which can then communicate back to the parent window. (or extension) This will be a reasonable alternative to modal dialogs for chrome extensions initially, and eventually for web apps in general. (if it gets adopted by other browsers) http://www.html5rocks.com/tutorials/notifications/quick/ http://www.html5rocks.com/tutorials/notifications/quick/