media.autoplay.enabled.user-gestures-needed =true has been replaced by media.autoplay.blocking_policy =1 If this isn't working then try media.autoplay.blocking_policy = 2

See also:

• [/questions/1293231] Block autoplay being ignored on Firefox 78
• https://drive.google.com/file/d/1Lkk37Vq8YhURxPL7UBVy0CuuZJU62PYQ/view

Yes, I'm having this same issue as well.. I've always had success setting "media.autoplay.enabled.user-gestures-needed" to "false" for disabling YouTube videos. I thought that feature was great for reading comments on my videos without negatively inflating analytics of adding more views to my content.

I've tried some of the add-ons to block autoplay on YouTube, but many are a mixed bag and not as reliable as manual tweaks in the config.

Edit:

media.autoplay.enabled.user-gestures-needed =true has been replaced by media.autoplay.blocking_policy =1 If this isn't working then try media.autoplay.blocking_policy = 2 See also:

• [/questions/1293231] Block autoplay being ignored on Firefox 78
• https://drive.google.com/file/d/1Lkk37Vq8YhURxPL7UBVy0CuuZJU62PYQ/view

Thanks, I'll give this a try! :)

media.autoplay.blocking_policy = 2 worked for me. Thank you.

Thanks, media.autoplay.blocking_policy = 2 - works perfect on Windows version of Firefox 78.0.1

Mac Note: I recall that Mac versions could use the same type of configuration, but may also require a separate change to another "autoplay" setting. Hopefully, media.autoplay.blocking_policy = 2 will be the only setting you'll need to change.