Click on link above
Click on Installation instructions for tar.gz
Slackware is a tgz based OS.
Note: This will install flash player for mozilla. If you want to use firefox instead, during the installation it will display the default path.
Enter /usr/lib/firefox as the new path.
Note: You need to be root to write to other directories.
Then proceed with installation.
To check if it was install correctly. open firefox and in the url type
Download flash here http://get.adobe.com/flashplayer/
and select tar.gz for linux from drop down menu.
- Good luck