sudo apt-get purge flashplugin-nonfree flashplugin-installer gnash gnash-common mozilla-plugin-gnash swfdec-mozilla
sudo rm -f /usr/lib/firefox-addons/plugins/libflashplayer.so
sudo rm -f /usr/lib/mozilla/plugins/libflashplayer.so
sudo rm -f /usr/lib/mozilla/plugins/flashplugin-alternative.so
sudo rm -f /usr/lib/mozilla/plugins/npwrapper*flash*so rm -f ~/.mozilla/plugins/*flash*so
2 64 bit flashplayer安装
sudo apt-add-repository ppa:sevenmachines/flash
sudo apt-get update sudo apt-get install flashplugin64-nonfree
3 64 bit flashplayer 删除
sudo apt-get remove flashplugin64-nonfree