"your browser does not currently recognize any of the video formats available" youtube

[adi10times]

Hi
I keep getting this message on Youtube when I open videos, I have to refresh the page to load the video.
I'm on the latest Vivaldi 2.1.1337.36 (Stable channel) (64-bit), Win7
I don't get this problem on my laptop, same version of Vivaldi, also Win7 64 bit.
Anyone knows why?

Thanks

[lamarca]

You need to install HTML5 to play the video, Flash is no longer used,

[TbGbe]

@adi10times Do you use an N or KN build of Windows 7? If so, you probably need the Media Feature Pack -
https://www.microsoft.com/en-us/download/details.aspx?id=16546

Test here : https://www.quirksmode.org/html5/tests/video.html

[lamarca]

@gwen-dragon & @tbgbe The way I see, the issue lies on his OS .....

[adi10times]

thanks everyone
I just realized I had YouTube No Buffer (Stop Auto-playing) extension on my desktop PC Vivaldi. I don't use desktop for youtube too often.
My bad
I uninstalled it, Youtube works normally again.

[iAN CooG]

@adi10times I tried this one
https://chrome.google.com/webstore/detail/disable-html5-autoplay-re/cafckninonjkogajnihihlnnimmkndgf?hl=en
but I experienced some video failing to start. So yeah, there must be something these extensions do wrong for YouTube.