I have been working on a custom image slider featured here:

JQuery

$(function(){
      $('.cont:gt(0)').hide();
      $("#parent").on("mouseenter", ".extraContent div", function(){
           var ind = $(this).index();
           $("#parent").find(".cont").stop().fadeTo(600,0,function(){
               $('#parent').find('.cont').eq(ind).stop().fadeTo(300,1);
           });
        });
        $('#parent .extraContent').on('click',function(){
             window.location=$(this).find("a").attr("href"); 
             return false;
        });
    });

CSS

?#parent { width:400px; margin:auto}
.mainContent { width:430px; height:300px; border:1px solid #000;padding:5px; }
.extraContent {overflow:auto; width:450px;}
.extraContent div{float:left; width:90px; height:90px; border:1px solid #00F; margin:5px; padding:5px }
.extraContent div:hover { border:1px solid #0F0;cursor:pointer }
.cont{
   position:absolute;
}

HTML

<div id="parent">
    <div class="mainContent">
        <div class="cont"> Content 1....</div>
        <div class="cont"> Content 2....</div>
        <div class="cont">Content 3...<br /><iframe width="267" height="200" src="http://www.youtube.com/embed/6tlQn7iePV4?rel=0" frameborder="0" allowfullscreen></iframe></div>
        <div class="cont"> Content 4....</div>  
    </div>
    <div class="extraContent">
        <div><p>1 Custom content here <br /> <a href="">Some link</a></p></div>
        <div><p>2 Custom content here <br /> <a href="">Some link</a></p></div>
        <div><p>3 Custom content here <br /> <a href="">Some link</a></p></div>
        <div><p>4 Custom content here <br /> <a href="">Some link</a></p></div>
    </div>
</div>?

My problem is if I embed YouTube video straight from the site using there iframe it transitions fine in Chrome but Firefox & IE just display the video straight away and each slide/div appears under the video, is this a known problem and doesn't anyone know a way I can get IE & FF to behave.

p.s. because this is going to be in a content management system the only way the user can embed the video is using the default code from youtube.

FIDDLE HERE