SCENARIO 1 In Window A: calling window.open('WindowB.html') opens Window B in a new TAB within Window A. This is expected. SCENARIO 2 In Window A calling window.open('WindowB.html','_blank','top=50') opens a brand new window, Window B, this is expected. Now in Window B call window.open('WindowC.html') and a new tab opens in Window A. The opening of the tab (as opposed to a window) is expected, but having it open the tab in Window A is not expected. Why would the tab be added to Window A, when the call was made from Window B? Is there anyway, via javascript, to have it open in Window B? == This happened == Not sure how often == always