Add keyboard shortcut to pause audio tabs or switch to audible tab

[Copilot]

Adds a configurable keyboard shortcut that pauses media playing in all tabs, or switches to the first audible tab if pausing fails.

Implementation

• Audio detection: Queries tab.audible property across all tabs
• Pause mechanism: Injects scripts in parallel using Promise.allSettled() to pause HTML5 <audio> and <video> elements
• Fallback behavior: Switches to first audible tab when script injection fails (protected pages) or no pausable media exists
• Result tracking: Uses optional chaining to safely check if media was actually paused: results?.[0]?.result === true

Changes

• manifest.json: Added pause-or-show-audio-tabs command
• background.js: Implemented handlePauseOrShowAudioTabs() with parallel execution and error handling
• popup.js, README.md: Added command description and documentation

Limitations

Only pauses HTML5 media elements. Cannot control Web Audio API, WebRTC, or content on protected pages (chrome://).

// Injected function that pauses discovered media
const mediaElements = document.querySelectorAll('audio, video');
mediaElements.forEach(el => {
  if (!el.paused) el.pause();
});

No default keybinding—users configure via chrome://extensions/shortcuts.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>pause all tabs? show tabs playing audio?</issue_title>
<issue_description></issue_description>

<agent_instructions>can the extension have a new shortcut which either pauses all tabs and if not, shows a tab playing audio?</agent_instructions>

Comments on the Issue (you are @copilot in this section)

• Fixes pause all tabs? show tabs playing audio? #32

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