Fedora 12 için:

su -
cd /usr/lib/nspluginwrapper/
mv npviewer.bin npviewer.bin.real
echo #!/bin/sh > npviewer.bin
echo GDK_NATIVE_WINDOWS=true /usr/lib/nspluginwrapper/npviewer.bin.real $* >> npviewer.bin
chmod 755 npviewer.bin

kaynak burası:

http://forums.fedoraforum.org/showpost.php?p=1288792&postcount=9&language=en

ubuntu için çözüm:

https://bugs.edge.launchpad.net/ubuntu/+source/flashplugin-nonfree/+bug/410407/comments/153