Block video autoplay not working | Firefox Support Forum | Mozilla Support

Submitted by michael on Thu, 01/24/2019 - 09:13

In firefox 63 the autoplay preferences are reorganised in preparation for this feature shipping out of the box in one of the upcoming versions. in about:config you can set media.autoplay.default to 1 in order to block automatic playback on all pages or set it to 2 to decide on a per domain basis.