I have read too many misleading and uniformed statements about installing and enabling Flash Player in Firefox. However after reading way too many comments one little tidbit made as an afterthought by a respondent GOT MY ATTENTION. it said, " be sure Firefox is closed [as well as IE]. Everyone knows to down load and install one has Firefox OPEN because you go to the arrow and click on the executable. WRONG. You must close Firefox and go find the executable somewhere in your download folder and execute it from explorer. The Voila it all works fine and Shockwave shows up in your Add-ons ready for action. Hope this helps all.