If you are opening/copying the video in chrome and pasting in firefox then it wont embed... dont know about the other way around or whether links from chrome will embed on chrome.... so thats a possibilityJeff H said:
Edit. No idea why they won't embed..
Noah Yates said:If you are opening/copying the video in chrome and pasting in firefox then it wont embed... dont know about the other way around or whether links from chrome will embed on chrome.... so thats a possibility