Videos Wont Play

hey guys, I updated the new maverick x software. at first my videos on youtube would not play so i uninstalled adobe and reinstalled it now it works great, but videos on Facebook do not work. the only thing i remember doing is reseting safari. java is enabled and flash is updated, please help!!!

This probably won't be of much help, but a quick tip is use Chrome.

It handles all that stuff better than Safari.