This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Firefox autoplay

  • 3 replies
  • 0 have this problem
  • 1 view
  • Last reply by Terry

more options

Where in the index file may I set firefox to autoplay? I found this code but dont know where to use it. You have to disable block auto-play and make sure media.autoplay.default = 0 Also make sure media.autoplay.allow-muted = true and media.autoplay.enabled.user-gestures-needed = false

Where in the index file may I set firefox to autoplay? I found this code but dont know where to use it. You have to disable block auto-play and make sure media.autoplay.default = 0 Also make sure media.autoplay.allow-muted = true and media.autoplay.enabled.user-gestures-needed = false

All Replies (3)

more options

You have to enter about:config in the address bar to see the advanced preferences. But your values are outdated. To disable autoplay, set the following:

  • media.autoplay.blocking_policy = 1
  • media.autoplay.default = 5
more options

If '1' isn't working properly for that first pref then try media.autoplay.blocking_policy = 2.

more options

The preference media.autoplay.default = 0 is correct if you want to allow autoplay. Enter about:config in the address bar. See the article previously linked.

https://wiki.mozilla.org/Media/block-autoplay#How_to_enable_or_disable_blocking_autoplay_on_Firefox.3F