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How do I disable autoplay of media in 66.0b2 (64-bit) Developer Edition?

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  • Last reply by Wolf_22

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I've always loved Firefox but I've ran into a wall with 66.0b2 (64-bit) Developer Edition where autoplay of media is concerned. What I've noticed--and this just recently started doing this as I think something was updated yesterday--is that if someone posts a YouTube video on a Facebook status feed, the video will play on its own despite my having the following media settings configured in about:config:

media.autoplay.default;1 media.autoplay.enabled.user-gestures-needed;false

I've noticed that when I set media.autoplay.allow-muted to false, the autoplay finally stops and I'd be okay with this were it not for the volume being unmuted when I click on the play button.

So, is there any way to make it that I have to press the play button but when it plays, the sound is muted?

I've always loved Firefox but I've ran into a wall with 66.0b2 (64-bit) Developer Edition where autoplay of media is concerned. What I've noticed--and this just recently started doing this as I think something was updated yesterday--is that if someone posts a YouTube video on a Facebook status feed, the video will play on its own despite my having the following media settings configured in about:config: media.autoplay.default;1 media.autoplay.enabled.user-gestures-needed;false I've noticed that when I set media.autoplay.allow-muted to false, the autoplay finally stops and I'd be okay with this were it not for the volume being unmuted when I click on the play button. So, is there any way to make it that I have to press the play button but when it plays, the sound is muted?

All Replies (4)

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You may find this link helpful: https://support.mozilla.org/en-US/questions/1222694

Facebook has an option to stop videos from playing automatically. You may need to take a look in their help section.

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Thanks for the reply, Keith. Sadly, it seems that the only combination of about:config modifications that works for me is both the "media.autoplay.default;1" and "media.autoplay.allow-muted;false". Not sure why--everything *was* working before but somewhere around 66.0b1 is when I think something changed.

What a pain... You'd think something like this would be easy to configure but for some reason, it just doesn't seem that way. At least, not for me in Developer Edition.

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Just go to Facebook and press the little down arrow which brings up a menu. Choose Settings --> Videos and turn off auto play

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It's not just Facebook doing this...