got it working
I had to find the right file to put the symbolic link into first (usr/lib/mozilla/plugins). Next in Terminal I CD'ed over to that file, then I made a symbolic link to the plugger.so file (ln -s /home/xxxx/plugger/plugger-5.1.3/plugger.so). What really complicated it was I had a typo in my first attempt. That created a "blind link" and since there was already a plugger.so link, it would not let me create another one of the exact same name. Once I realized that and deleted the blind link, everything worked great.
And you have to in root to do this too.