Sound/Audio Not Playing in Firefox - Solved?

Question

Mozilla Firefox

Greetings!

The other day I noticed that the sound in the fox died untimely, not completely, but on loading the music itself, whether it be a stream (Internet radio) or music in VK, coub, or a regular html 5 player.

Of everything, only YouTruba works, well, and any other video content.
I tried the network, nothing helped.
Can, who faced?

Answer 1

After some of the latest updates of the fox, as I wrote, the sound was played on the video and on some audio sites, but basically it didn’t load stupidly and nothing happened.
The solution was found in the line media.ffvpx.enabled which was set to false for some reason.
For people who came from a search engine -
In the address bar, we drive in about: config and look for the above option there, which we change to true