Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

Privacy & Security->Permissions->Autoplay

  • 2 replies
  • 0 have this problem
  • 1 view
  • Last reply by James

webhart1
webhart1
more options

When selecting Block Audio and Video option, I click settings and set to Block Audio and Video for Default for All Websites. It does not effect the browser from blocking.

How do I make it really work? I try to add websites but unable to do that, there are 2 websites listed as allow, I try to block them, have tried to delete them but when I save setting, they seem to return and allow.

So effectively it is not functioning. Is this just a fake setting?

When selecting Block Audio and Video option, I click settings and set to Block Audio and Video for Default for All Websites. It does not effect the browser from blocking. How do I make it really work? I try to add websites but unable to do that, there are 2 websites listed as allow, I try to block them, have tried to delete them but when I save setting, they seem to return and allow. So effectively it is not functioning. Is this just a fake setting?
Attached screenshots

All Replies (2)

Terry
Terry
more options

Try these values for preferences in about:config.

media.autoplay.default = 5 [0:Allowed;1:blocked;5:All Blocked] media.autoplay.block-event.enabled = true media.block-autoplay-until-in-foreground = false media.autoplay.allow-extension-background-pages = false media.autoplay.blocking_policy = 2

https://support.mozilla.org/en-US/kb/about-config-editor-firefox https://support.mozilla.org/en-US/questions/1321021

James
James
  • Top 25 Contributor
  • Moderator
more options

https://support.mozilla.org/en-US/kb/block-autoplay