LightSpark Flash Player Alternative

Try traditional installation
$sudo add-apt-repository ppa:sparkers/ppa
$sudo apt-get update

$sudo apt-get install lightspark browser-plugin-lightspark



Make link to library or copy to plugin directory
$sudo cp /usr/lib/lightspark/liblightsparkplugin.so ~/.mozilla/plugins/
$sudo cp /usr/lib/lightspark/liblightsparkplugin.so /usr/lib/mozilla/plugins/

or
$ln -s /usr/lib/lightspark/liblightsparkplugin.so ~/.mozilla/plugins/liblightsparkplugin.so


Note: try run $locate libflashplayer.so , for know where is the plugin directory