I can't play some videos on my Facebook. Can you help?
In order to fix the issues, I suggest you update your browser to the latest version. Also, download Adobe Flash Player from the official web page, close the browser and install the utility following the on screen instructions. Check the Support page for further solutions.
Check the minimum system requirement for using it at http://www.adobe.com/products/flashplayer. Adobe also provides online testing for Flash Player at http://www.adobe.com/shockwave/welcome/ (This page will also tell you which version is currently installed in your machine (if it is installed) and provides a list of the latest player versions for each platform)