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Two audio streams when playing youtube clips in Firefox

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Since the last week or so I get two audio streams when watching youtube clips. They have av small offset in start so it sounds like an echo. If I pause the video, one audio stream continues.

The problem can be avoided by reloading the youtube clip.

I have tried: Reset and reinstall Firefox. Started without Add-ons. Reinstall Flash

Specs: Windows 8.1 Firefox 37.0.2

Since the last week or so I get two audio streams when watching youtube clips. They have av small offset in start so it sounds like an echo. If I pause the video, one audio stream continues. The problem can be avoided by reloading the youtube clip. I have tried: Reset and reinstall Firefox. Started without Add-ons. Reinstall Flash Specs: Windows 8.1 Firefox 37.0.2

Krafo moo ko soppali ci

Saafara biñ tànn

I spent several hours testing solutions before starting this thread.

But 2min later I tested to remove YouTube HD 1.2 (Add-on) and it solved the problem :)

I thought that was not necessary when safe mode (start without Add-ons) did not solve the problem.

Jàng tontu lii ci fi mu bokk 👍 0

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Saafara yiñ Tànn

I spent several hours testing solutions before starting this thread.

But 2min later I tested to remove YouTube HD 1.2 (Add-on) and it solved the problem :)

I thought that was not necessary when safe mode (start without Add-ons) did not solve the problem.

Krafo moo ko soppali ci

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I found it was happening to me.

I removed these 2 plugins:

here were my culprits...it was one of these.

http://www.flashvideodownloader.org/ http://www.bestvideodownloader.com/