The upload is a webm video, perhaps your browser is unable to play the format.
Seems like my firefox can't run it, as chrome had no problem Edit: or rather it can't view it in danbooru environment, since I can right-click view image to make it work.
Seems like my firefox can't run it, as chrome had no problem Edit: or rather it can't view it in danbooru environment, since I can right-click view image to make it work.
Make sure you're using a recent version of Firefox, like Firefox 30.