1 download the attached file to your desktop 2 unzip the file and cd its directory cd install_flash_player_9_linux 3 find the two files flashplayer.xpt libflashpalyer.so 4 mkdir /home/your_username/.maozilla/plugins 4 mv flashpalyer.xpt /home/your_username/,mozilla/plugins mv libflashplayer.so /home/your_username/.mozilla/plugins 5 kill your firefox and run it again,you will find you can play flash with firefox.