HTML controlbar, progressbar and time does not function in FF Created Feb 27, 2010

I am using the HTML controlbar and when i play clips, the controlbar does not get updated in firefox. In IE the controlbar, and the time display, function as it should be.

I have put alerts within the controlbar, directly after

$f.addPlugin("controls", function(wrap, options) {

In firefox this alert only gets fired once, in IE it keeps firing.

This is my initialision

$(window).load(function() {
	$f("flowplayer", "flowplayer-3.1.5.swf", {
		plugins: { 
			//controls: null
		}, 
		
		clip: {
			baseUrl: baseUrlExt,
			autoBuffering: true,
			autoPlay: true, 
			
			onFinish: function() {
				setTimeout('player_next()', 1000);
			}
		},
		
		onLoad: function() {
			refresh_playlist();
		},
		
		log: { level: 'debug' } 
	}).controls("controlbar");
	//.playlist("#playlist", {loop:true});
	
});

I use this for my playlist. If i check afterwards if the duration is set, then it is set.

function play_clip(id) {
    $("#playlist_clip_" + playlist_clip).removeClass('playlist_active');
    $f().play(playlist[id]);
    alert($f().getClip(0).duration);
    playlist_clip = id;
    $("#playlist_clip_" + playlist_clip).addClass('playlist_active');
}

So i am wondering what i am doing wrong for Firefox. Can somebody help me?