So, after a while I'm back on the subject : I solved my problem : i just had to install gstreamer1-libav and/or gstreamer-ffmpeg...
Thank you for your help. (Merci braz, paotr, puisque ça a quand même l'air d'un nom francaoui, Quentin Rameau...) On Mon, Jul 10, 2017 at 10:17:34PM +0200, Quentin Rameau wrote: > > I understand and and i use webkitgtk2.16.5. I have tried epiphany, and > > it behaves just fine for me : i can't play youtube videos but at > > least the browser doesn't freeze. With surf, it would be perfect. So > > i guess, it is really surf... > > Well yes, surf will let the webkit play videos through gstreamer if you > click on videos. > So haven't actually tested the issue in epiphany. > > You could try disable 2D acceleration in surf parameters though, maybe > the FreeBSD video driver you're using is bugged. > > Good luck! >