Install Flash Player | Backtrack 5R3

• As you may have noticed Flash Player does not work on Backtrack 5, so in order to fix this we first need to remove the current flash player by issuing the following commands:

root@bt:~# apt-get purge flashplugin-nonfree flashplugin-installer 

           gnash gnash-common mozilla-plugin-gnash swfdec-mozilla
root@bt:~# rm -f /usr/lib/firefox/plugins/*flash*
root@bt:~# rm -f /usr/lib/firefox-addons/plugins/*flash*
root@bt:~# rm -f /usr/lib/mozilla/plugins/*flash*
root@bt:~# rm -f ~/.mozilla/plugins/*flash*so
root@bt:~# rm -rfd /usr/lib/nspluginwrapper

• After removing flash we need to get the new flash player from the official [ http://www.adobe.com/software/flash/about/ website]. (Download in tar.gz format)

• Next up we will take care of the Flash Player:

root@bt:~# mkdir -p ~/.mozilla/plugins
root@bt:~# mkdir flash
root@bt:~# mv -f install_flash_player_11_linux.i386.tar.gz flash/
root@bt:~# cd flash/
root@bt:~/flash# tar xvfz install_flash_player_11_linux.i386.tar.gz 
root@bt:~/flash# cp -f libflashplayer.so ~/.mozilla/plugins/

• We can test if flash player works over here. 

source link : http://www.backtrack-linux.org/wiki/index.php/Install_Flash_Player