On Mon, 2007-06-25 at 10:53 +0100, John Austin wrote: > 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 ? One thing you can do that Mozilla refuses to do is change the following config option from true to false. Go to: about:config in the browser, Then change the value of the config parameter: browser.download.hide_plugins_without_extensions from true to false. This will allow you to go to: Edit->preferences->Content Then in box called File types click on Manage. There you will see a list of what application handles which extension type. This can now be changed. This hidden feature of firefox is helpful in situations such as yours.