Spotify: pause when the tab loses focus
Pauses playback when you switch to another tab and resumes it when you return to Spotify.
Code to copy
// Pause playback when the tab loses focus, resume when it returns
let pausedByScript = false;
function ctl() { return document.querySelector('button[data-testid="control-button-playpause"]'); }
document.addEventListener('visibilitychange', () => {
const btn = ctl();
if (!btn) { return; }
const playing = btn.getAttribute('aria-label') === 'Pause';
if (document.hidden && playing) { btn.click(); pausedByScript = true; }
else if (!document.hidden && pausedByScript && !playing) { btn.click(); pausedByScript = false; }
});How to use this example
- Copy the code with the button above.
- Install JustZix (2 minutes) and open the extension on the target page.
- Add a new rule matching that page.
- Paste the code into the rule's JavaScript panel and save — it runs on every page visit.
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