I am running OS X Version 10.6.7 and Firefox 4.0.1. I am trying to install the Web browser plugins for 10.5 and later (release 1.0.5), there is not a newer version of the plugin at the moment. I downloaded the dmg, ran the installer with firefox closed, then rebooted. Launched Firefox and went to about:plugins. It was still not listed.
I went to /Library/Internet Plug-Ins and saw VLC Plugin.plugin which I assume is the location it is supposed to be in. I went ahead and tried the page I needed it for and it still says I am missing the plugin.
If it matters I am trying to use this with a Foscam Networked camera on my local lan. They added support for audio in firefox by using the vlc plugin (supposedly).
I am currently working on the assumption that I doing something wrong. Any suggestions would be appreciated, although I assume it is possible that the plugin is not compatible with the current version of firefox, or foscam has done something wrong.