Download the tar.gz flash file from Adobe website http://get.adobe.com/flashplayer/
Using the terminal navigate to the downloaded file (install_flash_player_10_linux.tar.gz)
Extract the file using the command
tar -zxvf install_flash_player_10_linux.tar.gz
Following file will be extracted
libflashplayer.so
Login as root
Copy the file 'libflashplayer.so' into the folder '/usr/lib/mozilla/plugins'
cp libflashplayer.so /usr/lib/mozilla/plugins
Now the flash videos will be played in the browser
