Examine source code of Seoly

{
  "manifest_version": 2,
  "name": "Seoly",
  "version": "2.0",
  "description": "Professionelles SEO Analyse Tool",
  "permissions": [
    "tabs",
    "activeTab",
    "<all_urls>",
    "storage"
  ],
  "browser_action": {
    "default_icon": "icon.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{63508ba5-41d9-4e7a-a397-cb19a46b2e37}"
    }
  }
}