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How can I get rid of green lines on videos and streaming?

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I have green line across the screen when I play videos or streamlive.

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Site with error and screenshot of the error?

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WarriorM said

I have green line across the screen when I play videos or streamlive.

Hello WarriorM,

Would you try this please :

Type in the address bar about:config and press Enter (promise to be careful, if asked)

Type in the search bar : media.wmf.dxva

Look for the preference :

media.wmf.dxva.d3d11.enabled

and set its value to false

Then close and restart Firefox.

'Hope that will do the trick .....