Examine source code of SuspenderOfTAB

{
  "manifest_version": 2,
  "name": "SuspenderOfTAB",
  "version": "1.4",
  "description": "Intelligent tab suspender.",
  "icons": {
    "48": "icons/border-48.png"
  },
  "background": {
    "scripts": [
      "bg.js"
    ]
  },
  "permissions": [
    "tabs",
    "storage",
    "sessions"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{055f7489-4ced-4489-9016-6a5f8d93d114}",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    },
    "gecko_android": {
      "strict_min_version": "140.0"
    }
  },
  "browser_action": {
    "browser_style": false,
    "default_title": "SuspenderOfTAB",
    "default_popup": "popup.html"
  },
  "default_locale": "en"
}