Examine source code of dropheus

{
  "manifest_version": 3,
  "name": "dropheus",
  "description": "find cheaper alternatives or detect dropshipping on etsy, amazon or ebay.",
  "version": "1.0.0",
  "action": {
    "default_title": "Extension Base",
    "default_popup": "popup.html"
  },
  "permissions": [
    "storage",
    "scripting"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "icons/*"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "ivie@ivie.codes",
      "strict_min_version": "128.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "optional_permissions": [
    "<all_urls>"
  ],
  "optional_host_permissions": [
    "<all_urls>"
  ]
}