This command can also be a useful workaround for bug SEL-339. In some cases, Selenium will be unable to intercept a call to window.open (if the call occurs during or before the "onLoad" event, for example). In those cases, you can force Selenium to notice the open window's name by using the Selenium openWindow command, using an empty (blank) url, like this: openWindow("", "myFunnyWindow").