Firefox version 57.02 64 bit
The above link is an example of a video that won't play if I click it, I get the media could not be played. If I right click the video and choose "open link in new private window" it plays fine. What gives, I have had this ever since the new version of Firefox came out, Firefox was never installed on my computer until the new version came out. Although I like the new Firefox this alone will cause me to uninstall it for good, any ideas guys? The only addon I have is Ublock Origin and disabling that does not fix it.