window.open

I am opening a paypal window from the parent with window.open() . After payment and redirecting back to my page (in the popup window), I would like to close the popup and update the parent window URL. I found out this works over window.opener.location. However the console shows window.opener.location is null after redirection because as the child window changes, the popup looses the information about the opener. Well great. Now is there any way to get around this? Maybe adding a sort of "listener" to the parent who listens to the URL of the child? window.opener is removed whenever you navigate

I want to get the references of all already opened child windows. is there any way? I am not using child = window.open(....) just using window.open(....) and opening multiple child windows. If you don't want to change your current code, you can simply override window.open() function: var openedWindows = []; window._open = window.open; // saving original function window.open = function(url,name,params){ openedWindows.push(window._open(url,name,params)); // you can store names also... } Run this code before calling window.open() . All the references to the opened windows will be stored in

I was developing a GreaseMonkey script which used window.showModalDialog . But before finishing it, I have discovered that Firefox 29 warns: Use of window.showModalDialog() is deprecated. Use window.open() instead. For more help https://developer.mozilla.org/en-US/docs/Web/API/Window.open But the problem is that window.open needs UniversalBrowserWrite privilege in order to open a modal window using window.open . Then, why is window.showModalDialog deprecated? Is there any API which doesn't require privileges? Note : I don't want a fake modal dialog (like jQuery's one), I need a real modal