I don't know if this is a known bug, but in Firefox the video background in the header stops sometime after scrolling down or going to another tab. And eventually it disappears completely and only the background color remains. It seems to be only in Firefox. Just curious if this is known bug or something we could fix? Using Webm and MP4 video approx. 40 seconds long as the video background with the header settings set on page settings (not Nectar slider).

Thanks, but video plays okay on first load and loops if you keep the tab open and active. But it seems to be an issue with Firefox. I found other examples in other themes doing the same. Maybe  the video player used is the same across different themes, so they all have the same "bug", or it could be a Firefox "feature". I will look into it further...