Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

The mozbrowseropenwindow event is fired when a new window is required — usually when the content of a browser <iframe> successfully calls the window.open() method, or the user clicks on a link with an unknown target.

The embedder must use the <iframe> passed in the event.details.frameElement property as the new window content.

General info

Specification
Non standard
Interface
CustomEvent
Bubbles
Yes
Cancelable
Yes
Target
<iframe>
Default Action
None

Properties

Property Type Description
target Read only EventTarget The browser iframe
type Read only DOMString The type of event.
bubbles Read only Boolean Whether the event normally bubbles or not.
cancelable Read only Boolean Whether the event is cancellable or not.
details Read only Object A custom object.

details

The details property returns an anonymous JavaScript object with the following properties:

url
A DOMString representing the URL of the document loaded within the frameElement property.
name
A DOMString representing the name of the new browser window.
features
A DOMString containing features represented by a list of names and values separated by commas. For a complete list of possible features, see window.open().
frameElement
An object representing the new browser <iframe> that will embed the new content.

Example

var browser = document.querySelector("iframe");

browser.addEventListener("mozbrowseropenwindow", function( event ) {
  console.log("A new window has opened containing the content at " + event.details.url + ".");
});

See also