代码无法在Firefox浏览器中执行

Question

如何在Firefox浏览器中执行此操作？

Look

<script type="text/javascript"> 
    var adfly_id = 16627167; 
    var popunder_frequency_delay = 0; 
    var adfly_protocol = 'https'; 
</script> 

<script src="https://cdn.adf.ly/js/display.js"></script>