window.close in Firefox

The close() function won’t always work in Firefox.

Firefox will only allow you to close a window with the close() function, if it was a script that opened the window in the first place.

Therefore to get around this, we can trick the browser into thinking a script opened the window.

The header script can be defined as follows:

<script language="javascript" type="text/javascript">

function closeWindow() {

window.open('','_parent','');

window.close();

}

</script>

This opens a non-existent new page, into a target(_parent) frame/window, (which is the window in which the script is executed, so replacing itself). The browser now thinks a script opened a page, and we can close it in the standard way.

<a href="javascript:closeWindow();">Close Window</a>