WebSocket Tab Muter

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "WebSocket Tab Muter",
  "description": "In response to a signal from a websocket or hotkey, mutes/unmutes all tabs",
  "version": "0.4",
  "icons": {
    "128": "icon128.png"
  },
  "background": {
    "service_worker": "muter.js"
  },
  "commands": {
    "close-other-tabs": {
      "description": "Close all other tabs in the current window"
    },
    "mute-tab": {
      "suggested_key": {
        "default": "Ctrl+M"
      },
      "description": "Mute/unmute the current tab"
    },
    "keep-tab": {
      "suggested_key": {
        "default": "Ctrl+U"
      },
      "description": "Keep the current tab unmuted for the next 30 secs (ignores the mute-all signal)"
    },
    "mute-now": {
      "suggested_key": {
        "default": "Ctrl+Shift+5"
      },
      "description": "Automute all noisy tabs now",
      "global": true
    },
    "unmute-now": {
      "suggested_key": {
        "default": "Ctrl+Shift+6"
      },
      "description": "Unmute all automuted tabs",
      "global": true
    }
  }
}