/usr/lib/mozilla/plugins:
  => libtotem-cone-plugin.so
        (size: 95760 bytes, mtime: Wed Mar 14 04:36:41 2012)
  => libtotem-gmp-plugin.so
        (size: 100232 bytes, mtime: Wed Mar 14 04:36:41 2012)
  => libtotem-narrowspace-plugin.so
        (size: 79564 bytes, mtime: Wed Mar 14 04:36:41 2012)
  => libtotem-mully-plugin.so
        (size: 71204 bytes, mtime: Wed Mar 14 04:36:41 2012)
  => flashplugin-alternative.so
     - symlink to /etc/alternatives/mozilla-flashplugin
     - symlink to /usr/lib/adobe-flashplugin/libflashplayer.so
        (size: 17047372 bytes, mtime: Tue Feb 28 13:57:03 2012)
  => librhythmbox-itms-detection-plugin.so
        (size: 5412 bytes, mtime: Tue Mar 20 22:11:52 2012)

/usr/lib/firefox/plugins:

/usr/lib/xulrunner-addons/plugins: