wget http://fpdownload.macromedia.com/get/flashplayer/current/install_flash_player_10_linux.tar.gz

~tar -zxf install_flash_player_10_linux.tar.gz

~mkdir ~/.mozilla/plugins

cp install_flash_player_10_linux/ libflashplayer.so  ~/.mozilla/plugins

restart firefox/iceweasel

ที่มา