Examine source code of Scroll Shooter

{
  "manifest_version": 2,
  "name": "Scroll Shooter",
  "version": "1.0",
  "description": "Bắn mục tiêu khi bạn cuộn trang lên/xuống trong lúc duyệt web.",
  "permissions": [
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "scroll-shooter@addon.local",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "style.css"
      ]
    }
  ]
}