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i have a red line down the middle of screen when playing YT vids , 1 side is better quality image color ect. than the other . what is causing this and how do i

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  • Last reply by cor-el

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the thin red line runs down the middle of the screen , the left side is of normal quality for my YT vids , the right side is enhanced with better color and clarity of skin tone and image in general . is this an addon or an add for some program ect. .

the thin red line runs down the middle of the screen , the left side is of normal quality for my YT vids , the right side is enhanced with better color and clarity of skin tone and image in general . is this an addon or an add for some program ect. .

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Can you attach a screenshot?


Start Firefox in Safe Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration is causing the problem.

  • switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Appearance
  • do NOT click the "Refresh Firefox" button on the Safe Mode start window