Hi Firefox 2.0.0.3 and F7 I really would like to know who or what decides how the mime type to plugin/application mapping is determined. The behaviour of FF seems to change depending upon which plugins are installed. EG If the vlc plugin is not there the mplayerplug-in is used and the "Video Streaming VideoCam" fails on this site mv libvlcplugin.so /tmp http://seaspritesports.com/weather-cams-stream.php Select "Video Streaming VideoCam click here" ....Mplayerplug-in starts and fails mv /tmp/libvlcplugin.so . Move it back and it uses vlc and works - How does it know that ? In this example things start working with the additional plugin What happens if things start failing ? My /usr/lib/mozilla/plugins directory looks like this lrwxrwxrwx 1 root root 39 2007-06-04 15:09 libflashplayer.so -> /usr/lib/flash-plugin/libflashplayer.so lrwxrwxrwx 1 root root 58 2007-06-02 22:21 libjavaplugin_oji.so -> /usr/java/jre1.6.0_01/plugin/i386/ns7/libjavaplugin_oji.so -rwxr-xr-x 1 root root 1077720 2007-06-18 18:35 libvlcplugin.so -rwxr-xr-x 1 root root 276892 2007-03-25 06:58 mplayerplug-in-dvx.so -rwxr-xr-x 1 root root 276892 2007-03-25 06:58 mplayerplug-in-qt.so -rwxr-xr-x 1 root root 276892 2007-03-25 06:58 mplayerplug-in-rm.so -rwxr-xr-x 1 root root 278072 2007-03-25 06:58 mplayerplug-in.so -rwxr-xr-x 1 root root 276892 2007-03-25 06:58 mplayerplug-in-wmp.so -rw-r--r-- 1 root root 8260 2007-03-15 16:44 xine-logo.ogg -rwxr-xr-x 1 root root 43404 2007-03-15 16:44 xineplugin.so Part of my ~/.mozilla/firefox/pluginreg.dat file looks like this naxos firefox 1006# cat pluginreg.dat | grep -i asx 16:application/x-mplayer2: mplayer2: asf,asx,asp:$ 17:video/x-ms-asf-plugin: mms animation: asf,asx,asp:$ 0:application/asx:Media Files:*:$ 6:video/x-ms-asf:Media Files:asf,asx,*:$ 14:application/x-drm-v2:Windows Media:asx,*:$ 15:video/x-ms-asf-plugin:Windows Media Video:asf,asx:$ 16:video/x-ms-asf:Windows Media Video:asf,asx:$ naxos firefox 1007# I have renamed pluginreg.dat and it is regenerated when FF is started diff between the original and the new shows them not to be the same How does this get imported into FF as shown by Preferences/Content/File Types Management/Download Actions (With "browser.download.hide_plugins_without_extensions" set to false) 1. How does (if it does !) pluginreg.dat get interpreted by FF ? 2. If a mime type is supported by more than one plugin/application how is the download action table determined ? 3. Is there a secret way of changing the association as the FF Change Action GUI does not appear to give you this option ? John
