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No Sound in YouTube Videos in FireFox

  • 4 replies
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  • Last reply by Opcode

Opcode
Opcode
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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.

Chosen solution

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:

Read this answer in context 👍 2

All Replies (4)

cor-el
cor-el
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Chosen Solution

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:

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

Modified by Opcode

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

Opcode
Opcode Question owner
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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.