firefox dont block video play even if autoplay is prohibited

[tos18]

Lot of articles in www.onet.pl portal have embedded videos. I dont want play this videos.
my default privacy settings are set to block audio and video and no exceptions are set.(only about:welcome but it ant be deleted)

Unfortunatly videos still start to play automaticly.

Any suggestions welcome.

[Mizar]

Type in about:config and search for autoplay.

Set media.autoplay.blocking_policy to 1 and media.autoplay.default to 0

Tell me how it went.

[tos18]

No changes. Still start to play.

[Mizar]

Ok, now try toggling services.sync.prefs.sync.media.autoplay.default to false.

[tos18]

No changes. Still start to play.

[Agentvirtuel]

Hello

Try ?
media.autoplay.blocking_policy 1
media.autoplay.default 5

Other topic
https://connect.mozilla.org/t5/ideas/add-a-way-to-block-autoplay-video/idc-p/47186/highlight/true#M2...

[tos18 · Accepted solution]

that values was before i make changes suggested by @Mizar but now (after changes again) look like did his job. Autoplay stop on first frame

current settings:

services.sync.prefs.sync.media.autoplay.default - false

media.autoplay.blocking_policy - 1
media.autoplay.default - 5

thankyou for solution

[Mizar]

Glad to have helped.

[tos18]

I applied these settings on another computer. It works