install 64-bit flash player on fedora 11 x86-64

# yum remove nspluginwrapper
~/Download $ wget http://download.macromedia.com/pub/labs/flashplayer10/libflashplayer-10.0.22.87.linux-x86_64.so.tar.gz
$ cd ~/.mozilla/plugins/
$ tar zxvf ~/Download/libflashplayer-10.0.22.87.linux-x86_64.so.tar.gz

Restart firefox.