/usr/lib/mozilla/plugins:
  => libgnome-shell-browser-plugin.so
        (size: 18704 bytes, mtime: Wed Apr 18 09:14:40 2012)
  => librhythmbox-itms-detection-plugin.so
        (size: 6048 bytes, mtime: Wed Aug 29 04:13:50 2012)
  => libtotem-cone-plugin.so
        (size: 100720 bytes, mtime: Thu Aug 23 21:55:11 2012)
  => libtotem-narrowspace-plugin.so
        (size: 80560 bytes, mtime: Thu Aug 23 21:55:11 2012)
  => flashplugin-alternative.so
     - symlink to /etc/alternatives/mozilla-flashplugin
     - symlink to /usr/lib/flashplugin-installer/libflashplayer.so
        (size: 19233136 bytes, mtime: Wed Apr 10 13:27:07 2013)
  => libtotem-mully-plugin.so
        (size: 72040 bytes, mtime: Thu Aug 23 21:55:11 2012)
  => libtotem-gmp-plugin.so
        (size: 105424 bytes, mtime: Thu Aug 23 21:55:11 2012)

/usr/lib/firefox/plugins:

/usr/lib/xulrunner-addons/plugins: