You have two versions of the same Shockwave For Director plugin installed which are conflicting with each other. You need to do the following.<br><br> #Click the orange Firefox button, go to Add-ons and then in the menu which opens, click the "Plugins" link.<br><br> #Disable this one: "Macromedia Shockwave for Director" (don't confuse it with this one: ''Adobe Shockwave for Director'' which is the one you want to keep)<br><br> #Download the update for the one you need to keep from here: http://get.adobe.com/shockwave/<br><br> #Check to make sure you have the latest Flash player installed which is 10.3.181.34 by visiting http://www.adobe.com/software/flash/about/ (I can't see the version number in your system details unfortunately).<br><br> #Update Java to 1.6.0_26 by going to http://www.java.com/en/<br><br> ---- After you update the above, go to the [http://www.mozilla.com/en-US/plugincheck/ Plugins Check] page and update others which might be necessary. If the problem persists, please post again.