Thanks @[email protected] ,

by any change I’ve tried codecs="avc1.4d401f" with my videos but of course it’s not working.

Whats drive me crazy, is when open trough file:/// Firefox can play it, but once inside an html page, you have to specify the right codec !? WTF

btw:

when I open .mp4 container version of it, by file path (url bar) like file:///X:/path/FooBar.mp4 it works, so Firefox can Open it… (now still to make it work inside an html page )

for .mkv it trigger a file download…

deleted by creator

Funny when I open .mp4 container version of it, by file path (url bar) like file:///X:/path/FooBar.mp4 it works, so Firefox can Open it… (now still to make it work inside an html page 😑 )

for .mkv it trigger a file download…

Thank you @[email protected] no matter the type I enter, it’s still not working…

btw the videos on your link are encoded H264 with , not AV1

Codec: H264 - MPEG-4 AVC (part 10) (avc1)

Thank you BananaTrifleViolin,

I’ve tried all your solutions, none works.

Yes they are AV1 (I have encoded them)

Codec: AOMedia’s AV1 Video (av01)
Color primaries: ITU-R BT.709
(audio): Codec: MPEG AAC Audio (mp4a)\

\

… So much for Web standards! …

Couldn’t agree more

I think you can also drag and drop video into Firefox to see if they will play.

no, this initiated a download :/

FYI great information about dual sim hardware type --> https://en.wikipedia.org/wiki/Dual_SIM#Types

Worked, perfectly 👍

Thank you @[email protected] ! hooo so I can hide any post not only mine ! ok then it make more sense :D