Multimedia :: DSL Compatible Flash
A DSL compatible version of flash 7 is available here:
http://kb.adobe.com/selfservice/viewContent.do?externalId=tn_14266
As user dsl
Download the Tar/GZ to /home/dsl/
Close any browers you have open
Then issue these commands to install in .mozilla/
tar -zxvf install_flash_player_7_linux.tar.gz
cd install_flash_player_7_linux
./flashplayer-installer
cd ..
rm -rf install_flash_player_7_linux
original here.