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Twitter video/gifs showing as black screen (audio works fine)

  • 2 wótegronje
  • 1 ma toś ten problem
  • 2 naglěda
  • Slědne wótegrono wót ghelfrich

ghelfrich
ghelfrich
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Only on Firefox (not Chrome, for example) animated gifs and videos on Twitter will not display -- they instead show a black screen. When paused or not yet played, there is a visible image, but as soon as I press play, it goes to black. The audio on a video will play just fine, but the screen/image is still black.

I have checked my graphics drivers for updates and they are all up-to-date. Also the gifs/videos play just fine if I use Chrome.

Firefox is up to date. I'm on v 93.0 (64-bit).

Only on Firefox (not Chrome, for example) animated gifs and videos on Twitter will not display -- they instead show a black screen. When paused or not yet played, there is a visible image, but as soon as I press play, it goes to black. The audio on a video will play just fine, but the screen/image is still black. I have checked my graphics drivers for updates and they are all up-to-date. Also the gifs/videos play just fine if I use Chrome. Firefox is up to date. I'm on v 93.0 (64-bit).

Wšykne wótegrona (2)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
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Note that the animated GIFs also are short MP4 videos. You can check the Web Console for media related messages.

ghelfrich
ghelfrich Pšašaŕ
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The red lines that came up include:

Content Security Policy: The page’s settings blocked the loading of a resource at inline (“script-src”). moz-extension:35:9 Content Security Policy: The page’s settings blocked the loading of a resource at data: (“media-src”). Content Security Policy: The page’s settings blocked the loading of a resource at data:i (“object-src”).

What now?