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Browser has an image superimposed

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  • 最近回覆由 cor-el

JerryWithaJ
JerryWithaJ
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I have a piece of QR code stuck in the upper left hand corner of the browser. I'm guessing that it's a QR code is irrelevant, rather that it's part of a graphic image. How can I get rid of it?

I have a piece of QR code stuck in the upper left hand corner of the browser. I'm guessing that it's a QR code is irrelevant, rather that it's part of a graphic image. How can I get rid of it?
附加的畫面擷圖

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cor-el
cor-el
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Start Firefox in Troubleshoot Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration or if userChrome.css/userContent.css is causing the problem.

  • switch to the Default System theme: "3-bar" menu button or Tools -> Add-ons -> Themes
  • do NOT click the "Refresh Firefox" button on the Troubleshoot Mode start window