1563698 - Video jitters while playback fullscreen

Status: RESOLVED DUPLICATE of bug 1465207

(Core :: Audio/Video: Playback, defect)

Description

[仕刀_XC]

Attachment: jitter.png

English is not my native language; please excuse typing and grammar errors.
The problem video‘s URL: https://www.bilibili.com/video/av57943349
During playback, the video will be played out of order, for example,00:01:50 will be displayed even before 00:01:49.
I did some screen shots and I've put them in the attachment. These three picture is in the order that the ones showed earilier by firefox is on the top, and the ones showed later is in the bottom.
The red circle is not a part of the video but drawn by me for indication.
In the picture you can see that the title came out first, but the intro animation ,which should came before the title, was played after it.
This problem is not likely caused by the implemention of the player for the problem didn't happen on chrome and edge.
I have no extension worked on this site installed.
I don't think it's a performance issue because both my cpu and gpu utilization is quiet low during playback.

Comment 1

[Bryce Seager van Dyk [:bryce] (he/him) - Not reading bugmail]

Thanks for the report. Could you navigate to about:support and use the copy to clipboard button to copy that information and post it in this bug please?

Comment 2

[仕刀_XC]

Attachment: Text from about:support

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      "AzureCanvasBackend (UI Process)": "skia",
      "AzureFallbackCanvasBackend (UI Process)": "cairo",
      "AzureContentBackend (UI Process)": "skia",
      "AzureCanvasBackend": "direct2d 1.1",
      "AzureContentBackend": "direct2d 1.1",
      "ApzWheelInput": 1,
      "ApzDragInput": 1,
      "ApzKeyboardInput": 1,
      "ApzAutoscrollInput": 1
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        },
        {
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        },
        {
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            {
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          ]
        },
        {
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          "log": [
            {
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        },
        {
          "name": "ADVANCED_LAYERS",
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          "status": "available",
          "log": [
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              "status": "available"
            }
          ]
        }
      ],
      "fallbacks": []
    },
    "crashGuards": []
  },
  "extensions": [
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      "isActive": true,
      "id": "[e-mail]"
    },
    {
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      "isActive": true,
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  ],
  "features": [
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    },
    {
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      "id": "[e-mail]"
    },
    {
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      "id": "[e-mail]"
    },
    {
      "name": "Web Compat",
      "version": "4.0.0",
      "id": "[e-mail]"
    },
    {
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      "version": "1.1.0",
      "id": "[e-mail]"
    }
  ]
}

Comment 3

[仕刀_XC]

I'm sorry that I accidentally pasted the text in comment.

Comment 4

[Jean-Yves Avenard [:jya]]

In about:config could you set gfx.webrender.enabled to true and restart firefox.

Does this issue still occur?

Comment 5

[仕刀_XC]

This fix worked.Thank you.

Comment 6

[Bryce Seager van Dyk [:bryce] (he/him) - Not reading bugmail]

Sounds like bug 1465207.