This comes with YouTube.
My browser is the latest Firefox version 52.3.0 (32 bits)
My OS is XP Pro SP3
I have the Flash/HTML5 Firefox add on
Somehow only Flash videos are working. Somehow the HTML5 videos are rejected. I get a black screen and this:
Your browser does not currently recognize any of the video formats available
click here to visit our frequently asked questions about HTML5 videos
Some videos will run fine. Other videos will not run.
Embedded Facebook videos mostly not working.
Live Facebook videos never working.
I have tried a lot of things somehow it isn't any better.
Have I missed anything??