No playable sources found firefox, IE working well

JW Player — Apr 04, 2014 09:11AM EDT

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I am Using JWPlayer 6.2.31115, on a apache Server with H.264 pseudo streaming and a plalist for different qualities.

In IE everything is working well, in Firefox I get the error "No playable sources found". If I add primary: flash, as suggested in several threads I get a error "Provider must be a swf" in both browsers.

Here my embed Code:
bc.. <script src="/images/kwu/video/player/jwplayer.js" type="text/javascript"></script>
<div id="container"></div>
<script type="text/javascript">
jwplayer("container").setup({
playlist: "/images/kwu/video/demo-1-playlist.rss",
width: 750,
height: 421,
autostart: "true"
});
</script>



and the rss File:

bc.. <rss version="2.0" xmlns:media="http://search.yahoo.com/mrss/" xmlns:jwplayer="http://developer.longtailvideo.com/">
<channel>
<title>kwu4s Produkt Demos</title>

<item>
<title>Demo</title>
<description>Die App im berblick.</description>
<media:group>
<media:content bitrate="400" url="/images/kwu/video/demo-1-240.mp4" width="426" />
<media:content bitrate="1500" url="/images/kwu/video/demo-1-360.mp4" width="640" />
<media:content bitrate="3000" url="/images/kwu/video/demo-1-480.mp4" width="854" />
<media:content bitrate="6000" url="/images/kwu/video/demo-1-720.mp4" width="1280" />
</media:group>
<jwplayer:provider>http</jwplayer:provider>
<jwplayer:http.startparam>starttime</jwplayer:http.startparam>
</item>

</channel>
</rss>



What is to do?

best regards

Christian