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!

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

HDMI Audio Not Woring in Firefox.

more options

Here's the problem: when I try to play a Youtube or other video in Firefox, the sound cuts out after 1 second. Then silence.

I have tried everything. I updated drivers. I tried fixing sound in the sound settings. Nothing works.

This seems only to be a problem with the HDMI output, as it seems fine when I use Bluetooth. However, it is only a problem with Firefox, because it works fine in Chrome and Edge.

Here's the problem: when I try to play a Youtube or other video in Firefox, the sound cuts out after 1 second. Then silence. I have tried everything. I updated drivers. I tried fixing sound in the sound settings. Nothing works. This seems only to be a problem with the HDMI output, as it seems fine when I use Bluetooth. However, it is only a problem with Firefox, because it works fine in Chrome and Edge.

All Replies (2)

more options

Make sure you are not blocking content.

Diagnose Firefox issues using Troubleshoot(Safe) Mode {web link}

A small dialog should appear. Click Start In Troubleshoot(Safe) Mode (not Refresh). Is the problem still there?


https://support.mozilla.org/en-US/kb/enhanced-tracking-protection-firefox-desktop


Many site issues can be caused by corrupt cookies or cache.

Warning ! ! This will log you out of sites you're logged in to. You may also lose any settings for that website.

more options

Doesn't solve the problem. As best I can tell, it just looks like Firefox doesn't play nice with my video card's audio drivers. I've reported the problem to them as well, but they're no help. And as I said, the problem seems specific to Firefox; other browsers don't have this problem.