This is the page.

www.miyamoto-chokai.com/index.php/2018-06-18-23-42-18/2018-07-14-22-14-02/189-videotest

I uploaded a video named IMG_5741.MOV to the server, put it in the directory images/video/testvideo/ and set the plugin to get them from that directory. i put a video {mov} videotest/IMG_5741{/mov} but it does not play. i tried another mov video but it also does not play.

But when i insert a YouTube URL it plays fine. i wonder why?

Thanks to you I succeeded, Thank you.

Sorry but for the life of me I can't find a button that says post question so I have to put my question here which is related slightly.
I've done the same; posted a video LOCAL that I one had as a ref to a youtube video. I tried all manner of formats (changing the tags appropriately) I have the video in the correct location and it is found but video will not play - only audio (both in Firefox and Chrome). Finally after literally hours of different formats I clicked the output as YOUTUBE video (on my VSDC app that I am using to output the video - using H264 as always) and I got it to work in Chrome but still no audio in Firefox 63.0.1 (64-bit)

Happy to move this question to where it should be if you can tell me how :-)
I'm using Joomla Joomla! 3.8.11
JoomlaWorks 'AllVideos' Plugin v4.6.1

OK so; noticing how old my version of allvideos was I reinstalled the latest version and the video now plays in Firefox However it runs smooth in chrome but does a LOT of buffering in firefox which I thought was strange.