Thin horizontal black lines when looking at youtube

The question is present only when I watch videos of youtube on different 100% zoom level (the page zoom) and the OSD youtube is visible. Chrome has had similar problem in the past: https://www.reddit.com/r/youtube/comments/3hh9le/horizontal_thin_black_lines_when_going_fullscreen/

You can try to disable hardware acceleration in Firefox.

  • Tools > Options > advanced > General > Browsing: "use hardware acceleration when available.

You will need to close and restart Firefox after enabling/disabling this setting.

You can check if there is an update for your display driver graphic card and search for hardware acceleration of related issues.

Tags: Firefox

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