Flash/Div Problems in Firefox

Okay, so I have a flash file of snowflakes falling that is absolutely positioned over the my page. This works perfectly fine in internet explorer but horribly in firefox. I can’t even see the snowflakes, but I know the div is there because I can’t click on any of the links. This is a huge problem. Can someone please advise me of how to fix this so it works in both browsers?

Here’s my coding:
<style type=‘text/css’>
div.snow {position:absolute;
top:0;
left:0;
width:1000px;
height: 800px;
z-index:-2;
VISIBILITY:visible;>
}
</style>

<div class=“snow”>
<param name=“allowScriptAccess” value=“sameDomain”>
<param name=“movie” value=“http://us.f13.yahoofs.com/bc/45065c39_1649/bc/My+Documents/snowfall---2.swf?bfGePZFBU0_WmbOT”>
<param name=“menu” value=“false”>
<param name=“quality” value=“high”>
<param name=“wmode” value=“transparent”>
<embed allowScriptAccess=“never” allowNetworking=“internal” enableJSURL=“false” src=“http://us.f13.yahoofs.com/bc/45065c39_1649/bc/My+Documents/snowfall---2.swf?bfGePZFBU0_WmbOT” menu=“false” quality=“high” wmode=“transparent” wmode="transparent’ width=“100%” height=“100%” name=“snow_final_mx” align=“middle” allowScriptAccess=“never” type=“application/x-shockwave-flash” pluginspage=“http://www.macromedia.com/go/getflashplayer”>
</div>