There are 2 versions of the Adobe Flash Player, have you installed the version used by Firefox? It does not use the same version as Internet Explorer. A quick way to find out if you have the version used by Firefox is to visit the following link using Firefox - http://www.adobe.com/software/flash/about/ If it shows that Flash is not installed, using Firefox you can install it from http://get.adobe.com/flashplayer/ or use the manual installers, for details see http://kb2.adobe.com/cps/191/tn_19166.html#main_ManualInstaller