Hello i'm having problems with facebook videos, strangely enough some of the videos work others not so much. Here is an example of a video that is not working: https://www.facebook.com/StarTrek/videos/vb.122908054392375/1573518512668342/?type=2&theater It works to a way then it doesn't. it then shows the error from the picture added. The problem occurs only on firefox and it doesn't work with addons disabled either. I tried the same video to be played on Chrome and it works perfectly. The Firefox i'm using is the latest 55.0.3 64 bit version. Windows 7 Ultimate and the flash player is also the latest 27.0.0.130