'window.open' blocked by Firefox

I use window.open and call it at the document ready event, but it is blocked by a popup blocker in Firefox. Then I added this to the function and make a call of this function from a button and then trigger the button click without success:


function abcd(){
    var popup = window.open("http://localhost/johndyer-mediaelement-7ed6c51/demo/index.php","mypopup","width=500,height=300");       

Is there some way to open an external popup window or new tab on browser when the page loaded?



Don't open pop up advertising. It's annoying.

On the other hand, if it's a message the user wants to see, then you can use a jQuery plugin like Colorbox to display a hovering modal window without opening a new popup, that the user can easily close.


Firefox has a bunch of rules that helps it to decide whether popup should be blocked or not. Usually if action is initialized with user click, firefox will allow opening popup, but if it's done by "pure" javascript it will most likely block it.

You can read about it in here: http://support.mozilla.org/en-US/kb/Pop-up%20blocker.

So if you read article carefully you will notice that popups initialized by user click will open:

<input type="button" value="Click Me"/>

and jquery code


even with popup blocker turned on. Try it:



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