Firefox don't play videos with totem-mozilla plugin

Binary package hint: totem-mozilla

On Edgy (migrate from dapper) Firefox seems to not be able to play embedded videos with the totem-mozila plugin (of course, It was ok with dapper).

I tried with the gstreamer and xine totme backends without success.
I don't think that's a codec problem cause I can watch wmv and mpeg local files with totem without any problems.

I've checked on forums (both officials an french) and I'm not alone (the turn around seems to install mplayer plugin).

Thanks
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a first trace :
** Message: NP_Initialize

** Message: totem_plugin_new_instance
totemGMPPlugin ctor [0x8c1c6a0]
mode 1
mime type: video/x-ms-asf-plugin
argv[0] type video/x-ms-asf-plugin
argv[1] pluginspage http://www.microsoft.com/Windows/Downloads/Contents/Products/MediaPlayer/
argv[2] src http://www.videogag.org/vhrued/pubs/bear.mpg
argv[3] name player
argv[4] autostart 0
argv[5] showcontrols 1
argv[6] showdisplay 0
argv[7] showstatusbar 1
argv[8] animationatstart 1
argv[9] transparentatstart 0
argv[10] allowchangedisplaysize 1
argv[11] autosize 1
argv[12] displaysize 0
argv[13] enablecontextmenu 0
argv[14] windowless 1
argv[15] enablefullscreencontrols 0
argv[16] height 308
argv[17] width 352
** Message: plugin_get_value 14 (e)

** Message: plugin_set_window
** Message: waiting for data to come
** Message: leaving plugin_set_window
** Message: plugin_set_window
** Message: existing window
** Message: resize
** Message: leaving plugin_set_window
** Message: plugin_set_window
** Message: existing window
** Message: resize
** Message: leaving plugin_set_window
** Message: plugin_new_stream
** Message: plugin_new_stream type: video/mpeg url: http://www.videogag.org/vhrued/pubs/bear.mpg
------------------------------------------------------------------------------------------
a second trace:
totemGMPPlugin ctor [0x8b8b940]
mode 1
mime type: video/x-ms-asf-plugin
argv[0] src http://videojts.francetv.fr/publicite/jt-asx.php?chaine=2&url=http://sdmc-ext1.francetv.fr/interne/horsgv/regions/siege/infos/f2/8h/HD_8h_20061031.wmv
argv[1] type video/x-ms-asf-plugin
argv[2] name VideoPlayer
argv[3] id VideoPlayer
argv[4] pluginspage http://www.microsoft.com/Windows/Downloads/Contents/Products/MediaPlayer/
argv[5] autostart 1
argv[6] showcontrols 1
argv[7] animationatstart 1
argv[8] transparentatstart 1
argv[9] allowchangedisplaysize 1
argv[10] autosize 1
argv[11] displaysize 2
argv[12] enablecontextmenu 1
argv[13] windowless 0
argv[14] showstatusbar 1
argv[15] invokeurls 1
argv[16] stretchtofit 1
argv[17] border 0
argv[18] height 309
argv[19] hspace 0
argv[20] vspace 0
argv[21] width 320
** Message: plugin_get_value 14 (e)

** Message: plugin_set_window
** Message: waiting for data to come
** Message: leaving plugin_set_window
** Message: plugin_set_window
** Message: existing window
** Message: resize
** Message: leaving plugin_set_window
** Message: plugin_set_window
** Message: existing window
** Message: resize
** Message: leaving plugin_set_window
** Message: plugin_new_stream
** Message: plugin_new_stream type: video/x-ms-asf url: http://videojts.francetv.fr/publicite/jt-asx.php?chaine=2&url=http://sdmc-ext1.francetv.fr/interne/horsgv/regions/siege/infos/f2/8h/HD_8h_20061031.wmv
** Message: Is special type 'audio/x-ms-asx'

** Message: Need to wait for the file to be downloaded completely
** Message: plugin_stream_as_file: /tmp/plugtmp/jt-asx.php
** Message: Launching: /usr/lib/totem/totem-mozilla-viewer --xid 52441730 --width 320 --height 309 --url http://videojts.francetv.fr/publicite/jt-asx.php?chaine=2&url=http://sdmc-ext1.francetv.fr/interne/horsgv/regions/siege/infos/f2/8h/HD_8h_20061031.wmv --mimetype video/x-ms-asf --playlist file:///tmp/plugtmp/jt-asx.php

** Message: waiting for signal org.totem_5699.MozillaPluginService
** Message: Received notification for :1.12

** Message: Received notification for :1.12

** Message: Received notification for org.totem_5699.MozillaPluginService

** Message: Received notification for org.totem_5699.MozillaPluginService

** Message: Done forking, new proxy=0x897b4e0
** Message: plugin_destroy_stream, reason: 0
** Message: plugin_get_value 15 (f)

** Message: unhandled variable 15 (f)
** Message: plugin_get_value 11 (b)

** Message: plugin_get_value 268435466 (1000000a)

** Message: GetHelperForLanguage 2
** Message: GetInterfaces
CMD line: /usr/lib/totem/totem-mozilla-viewer --xid 52441730 --width 320 --height 309 --url http://videojts.francetv.fr/publicite/jt-asx.php?chaine=2&url=http://sdmc-ext1.francetv.fr/interne/horsgv/regions/siege/infos/f2/8h/HD_8h_20061031.wmv --mimetype video/x-ms-asf --playlist file:///tmp/plugtmp/jt-asx.php
ignored url 'file:///tmp/plugtmp/jt-asx.php'
** Message: NO PLAYLIST
** Message: plugin_get_value 15 (f)

** Message: unhandled variable 15 (f)
** Message: plugin_get_value 11 (b)

** Message: plugin_get_value 268435466 (1000000a)

** Message: GetHelperForLanguage 2
** Message: GetInterfaces