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Netflix: disable hover-preview autoplay

Pauses and mutes the preview clips that start when you hover the cursor over title cards.

Code to copy

// Pause hover-preview videos that play inside title cards
function muteCardPreviews() {
  document.querySelectorAll('.bob-card video, .title-card video').forEach(function (v) {
    v.muted = true;
    try { v.pause(); } catch (e) {}
  });
}
muteCardPreviews();
const obs = new MutationObserver(muteCardPreviews);
obs.observe(document.documentElement, { childList: true, subtree: true });

How to use this example

1. Copy the code with the button above.
2. Install JustZix (2 minutes) and open the extension on the target page.
3. Add a new rule matching that page.
4. Paste the code into the rule's JavaScript panel and save — it runs on every page visit.