Most odd. Have you tried clearing your cache? Other than that and Thane's suggestions, I can't think of anything that might help, sadly
Well, I don't trust Facebook, that's why I use a separate computer running Linux (Mint 17 Qiana Mate 64-bit) and Firefox for Facebook. I can try another browser but Mint uses its own version of Flash that may not be compatible with other browsers. Thanks for your help.