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How to get rid of vertical grey line seen only on Firefox

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I have a mysterious grey vertical line seen across one website, only on Firefox. Does anyone know what causes this? Latest Firefox installed, shows up on both regular and developer version.

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I see the same effect on that page when the width is over about 965px if I check this in the Inspector.

This could happen if content is placed on canvas and there is a one pixel gap between various parts. I've recently seen another thread about a faint lines appearing.

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Image wouldn't initially post.

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Type in the address bar about:config (press Enter) (promise to be careful if asked) Type in the search bar and look for the preference : media.wmf.dxva.d3d11.enabled And set its value to false. After, restart Firefox.

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Thanks for your reply. Unfortunately it's not just on my computer, it shows across multiple computers only on firefox, so I don't feel like this solution will fix it.

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Valgt løsning

I see the same effect on that page when the width is over about 965px if I check this in the Inspector.

This could happen if content is placed on canvas and there is a one pixel gap between various parts. I've recently seen another thread about a faint lines appearing.

Ændret af cor-el den

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Thank you for your reply! Enough information to find the culprit :) Thanks!