Important Notice: We're experiencing email notification issues. If you've posted a question in the community forums recently, please check your profile manually for responses while we're working to fix this.

On Monday the 3rd of March, around 5pm UTC (9am PT) users may experience a brief period of downtime while one of our underlying services is under maintenance.

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

No Sound in YouTube Videos in FireFox

  • 4
  • 5
  • 8 views
  • Nzaghachi ikpeazụ nke Opcode

more options

I've been fighting Firefox for the last 6 weeks or so, trying to get it to play YT videos. First, it wouldn't play them at all, until I disabled Realplayer. Then, it played fine for almost 2 weeks, but then it stopped playing sound. All the videos are muted on YouTube, and I cannot unmute them. Other browsers have no problem playing YT videos, and FF can play videos from other sites.

I've gone through all the troubleshooting steps I can find. I've scoured my computer to remove every vestige of Adobe Flash and Adobe Air, then re-installed. I deleted my FF cookies and cache. I still don't have sound in YT.

I'm using Firefox 14.0.1 on Windows 7 (64) with 8 GB RAM.

I've been fighting Firefox for the last 6 weeks or so, trying to get it to play YT videos. First, it wouldn't play them at all, until I disabled Realplayer. Then, it played fine for almost 2 weeks, but then it stopped playing sound. All the videos are muted on YouTube, and I cannot unmute them. Other browsers have no problem playing YT videos, and FF can play videos from other sites. I've gone through all the troubleshooting steps I can find. I've scoured my computer to remove every vestige of Adobe Flash and Adobe Air, then re-installed. I deleted my FF cookies and cache. I still don't have sound in YT. I'm using Firefox 14.0.1 on Windows 7 (64) with 8 GB RAM.

Asịsa ahọpụtara

Try to clear the Flash local storage and settings.

  • Windows Control Panel > Flash Player > Storage: Local Storage Settings **Remove a specific domain: Local Storage Settings by site **Remove all domains: Delete All and Delete Data

Flash Website Storage Settings panel:

Global Storage Settings Panel:

Gụọ azịza a na nghọta 👍 2

All Replies (4)

more options

Asịsa Ahọpụtara

Try to clear the Flash local storage and settings.

  • Windows Control Panel > Flash Player > Storage: Local Storage Settings **Remove a specific domain: Local Storage Settings by site **Remove all domains: Delete All and Delete Data

Flash Website Storage Settings panel:

Global Storage Settings Panel:

more options

That didn't work. I deleted all websites, but I still cannot play YT sound.

Edeziri site na Opcode

more options

You can check for problems caused by a recent Flash 11.3 update and possibly downgrade to Flash 11.2 or 10.3.

more options

Odd; I just clicked on a YT link my Dad sent me in email. Sound is working. I don't know why it is working now; I didn't do anything.