Reference:
http://jingyan.baidu.com/article/fea4511a523d18f7bb912535.html
Tested by myself.
Works.
1. Download: install_flash_player_11_linux.x86_64.tar.gz
Here is link:
http://download.youkuaiyun.com/detail/king_bingge/8582273
2. Extract:
tar -zxvf install_flash_player_11_linux.x86_64.tar.gz
you will get:
Directory: LGPL
Directory: usr
File: libflashplayer.so
File:readme.txt
3. Copy the "libflashplayer.so" to where firefox's plugins is:
cp libflashplayer.so /usr/lib/firefox-addons/plugins/
Some notes wrote: "/usr/lib/mozilla/plugins/" . In my Ubuntu, it is "/usr/lib/firefox-addons/plugins/"
4. Copy all the things under here's /usr to System's /usr:
cp -r ./usr/* /usr/
End