Try Firefox from Mozilla and see if you have the same issue. https://www.mozilla.org/en-US/firefox/all/#product-desktop-release

You may also need to verify you have current ffmpeg and libav packages installed.

Thanks jonzn4SUSE, I tried Firefox from Mozilla, also checked for ffmpeg and libav, they are installed properly, still not working

Also I am getting this error while running from terminal`

`ERROR mp4parse] Found 2 nul bytes in "\u{0}\u{0}"`

I would recommend you get a live usb stick or spin up a VM with Tumbleweed and see what happens. https://download.opensuse.org/tumbleweed/iso/openSUSE-Tumbleweed-KDE-Live-x86_64-Current.iso

Just curious, but are you on a laptop or desktop? WiFi or Lan?

I am on desktop and using LAN. Thanks for help, though i just found a related bug on Arch forums, so will check the issue with Arch packages too.

Just googling your error and found some interesting reading...

https://bugzilla.mozilla.org/show_bug.cgi?id=1641972

https://www.reddit.com/r/artixlinux/comments/u7vd2s/firefox_9901_h264avc1_decode_not_working/

I would also mark your comment as resolved because this is not a browser issue.