Examine source code of mywebookxc

{
  "version": "1.0.38",
  "name": "__MSG_appName__",
  "short_name": "__MSG_shortName__",
  "description": "__MSG_appDesc__",
  "manifest_version": 2,
  "minimum_chrome_version": "5.0",
  "icons": {
    "16": "data/icon/icon-16.png",
    "128": "data/icon/icon-128.png"
  },
  "default_locale": "en",
  "background": {
    "page": "data/background/background.html"
  },
  "browser_action": {
    "default_icon": {
      "16": "data/icon/icon-16.png",
      "48": "data/icon/icon-48.png",
      "128": "data/icon/icon-128.png"
    },
    "default_title": "__MSG_appName__",
    "default_popup": "data/popup/popup.html"
  },
  "permissions": [
    "tabs",
    "storage",
    "https://www.mywebook.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://www.mywebook.com/*"
      ],
      "js": [
        "data/content/content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "58.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      },
      "id": "{c947196d-8a11-4d30-8e29-cc6bf8e3c638}"
    }
  }
}