I also have this problem, except i just coped it over cp /usr/lib/gnash/libgnashplugin.so /usr/lib/mozilla/plugins/
anyhow, could this have also messed up flashplugin-nonfree, since I have reinstalled that (and uninstalled gnash) and it does not see the nonfree flashplayer (aka it does not work anymore).
I also have this problem, except i just coped it over cp /usr/lib/ gnash/libgnashp lugin.so /usr/lib/ mozilla/ plugins/ nonfree, since I have reinstalled that (and uninstalled gnash) and it does not see the nonfree flashplayer (aka it does not work anymore).
anyhow, could this have also messed up flashplugin-