firefox shockwave plugin

i don't whats the problem my Firefox was working fine but few days back when ever i open any tab that has video in mean require shock-wave plugin my Firefox just freezes mean cant do anything (minimize close )nothing and after some time gets ok but video don't load.
i try to disable the plugin shochwave no freezing nothing fine no video either says install latest flash but when i do same problem. try uninstall -reinstall upgrade nothing works.
Help

Adobe - Adobe Shockwave Player

Remove your old one in Add/remove Programs and then install the one above

If you need new Flash:


http://labs.adobe.com/

i cant find
Adobe - Adobe Shockwave Player
in my add/remove programs but i can find flash player program so i install it and then install both programs form both links you give ? is that right?