It still unsolved...
sudo update-flashplugin-nonfree --status
Flash Player version installed on this system : 11.2.202.577
Flash Player version available on upstream site: 11.2.202.616
flash-mozilla.so - auto mode
link currently points to /usr/lib/flashplugin-nonfree/libflashplayer.so
/usr/lib/flashplugin-nonfree/libflashplayer.so - priority 50
Current 'best' version is
'/usr/lib/flashplugin-nonfree/libflashplayer.so'.Matteo
