@developer.mozilla.org on Bluesky

JavaScript RequiredThis is a heavily interactive web application, and JavaScript is required. Simple HTML interfaces are possible, but that is not what this is. Learn more about Bluesky at bsky.social and atproto.com.

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developer.mozilla.org

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Firefox 150 ships 7 media pseudo-classes: :buffering, :muted, :paused, :playing, :seeking, :stalled, :volume-locked. Style <audio> and <video> elements based on their playback state. Read Now 👇 https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/150

2026-05-11T10:00:39.665Z