Examine source code of 123music-player

{
  "manifest_version": 3,
  "name": "离线音乐播放器",
  "version": "1.0.0",
  "description": "本地离线音乐播放器：由用户选择设备上的音频文件进行播放，无需网络。",
  "permissions": [
    "storage",
    "tabs",
    "tabHide"
  ],
  "background": {
    "scripts": [
      "background/background.js"
    ],
    "type": "module"
  },
  "action": {
    "default_title": "离线音乐播放器",
    "default_popup": "popup/popup.html"
  },
  "icons": {
    "48": "assets/icons/icon.svg",
    "96": "assets/icons/icon.svg"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "music-player@example.local",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}