This feature is not on a current W3C standards track, but it is supported on the Firefox OS platform. Although implementations may change in the future and it is not supported widely across browsers, it is suitable for use in code dedicated to Firefox OS apps.

This API is available on Firefox OS for privileged or certified applications only.

The sendMouseEvent() method of the HTMLIFrameElement interface allows you to fake a mouse event and send it to the browser <iframe>'s content.


instanceOfHTMLIframeElement.sendMouseEvent(type, x, y, button,
                                           clickCount, modifiers);




A string representing the event type. Possible values are mousedown, mouseup, mousemove, mouseover, mouseout, or contextmenu.
A number representing the x position of the cursor relative to the browser <iframe>'s visible area in CSS pixels.
A number representing the y position of the cursor relative to the browser <iframe>'s visible area in CSS pixels.
A number representing which button has been pressed on the mouse: 0 (Left button), 1 (middle button), or 2 (right button).
The number of clicks that should be performed.
A number representing a key pressed at the same time the mouse button was clicked:
  • 1Alt
  • 2Ctrl
  • 4Shift
  • 8Meta
  • 16Alt Gr
  • 32Caps Lock
  • 64Fn
  • 128Num Lock
  • 256Scroll
  • 512Symbol Lock
  • 1024Win

Note: You can specify multiple key modifiers separated by a pipe symbol, for example 1 | 1014.


var browser = document.querySelector('iframe');
browser.sendMouseEvent("mousemove", x, y, 0, 0, 0);
browser.sendMouseEvent("mousedown", x, y, 0, 1, 0);
browser.sendMouseEvent("mouseup", x, y, 0, 1, 0);


Not part of any specification.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support Not supported Not supported Not supported Not supported Not supported
Feature Android Firefox Mobile (Gecko) Firefox OS (Gecko) IE Phone Opera Mobile Safari Mobile
Basic support Not supported Not supported 1.0.1 Not supported Not supported Not supported

Note: Use of the Browser API requires a privileged app, and browser and/or embed-apps permissions, depending on what you want to do. See Using the Browser API for more details.

See also


© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.

API B2G Browser Firefox OS HTML DOM HTMLIFrameElement Method Non-standard Reference Référence sendMouseEvent