Examine source code of VDP Finder

{
  "manifest_version": 2,
  "name": "VDP Finder",
  "version": "1.0",
  "description": "It detects domains within the scope of VDP.",
  "permissions": [
    "storage",
    "webRequest",
    "activeTab"
  ],
  "background": {
    "scripts": [
      "script.js"
    ]
  },
  "browser_action": {
    "default_popup": "script.html",
    "default_icon": {
      "16": "icon.png",
      "48": "icon.png",
      "128": "icon.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{968f7b86-4829-43d5-a20b-9b782f1b1827}"
    }
  }
}