Examine source code of Ebook Reader

{
  "manifest_version": 2,
  "name": "Ebook Reader",
  "version": "1.0.0",
  "description": "Une extension pour lire et gérer vos ebooks",
  "icons": {
    "48": "icons/icon.png"
  },
  "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'; img-src 'self' blob: data: moz-extension: 'unsafe-inline';",
  "browser_action": {
    "default_popup": "index.html",
    "default_icon": {
      "16": "icons/icon.png",
      "20": "icons/icon.png",
      "32": "icons/icon.png",
      "40": "icons/icon.png"
    }
  },
  "permissions": [
    "activeTab",
    "storage",
    "downloads"
  ],
  "background": {
    "scripts": [
      "background/background.js"
    ],
    "persistent": false
  },
  "web_accessible_resources": [
    "images/*",
    "*.png",
    "*.jpg",
    "*.jpeg",
    "*.gif"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{ab5ae090-53d7-412c-a6a3-bc89437e7932}"
    }
  }
}