Examine source code of Dal QRcode

{
  "manifest_version": 2,
  "name": "__MSG_extName__",
  "description": "__MSG_extDescription__",
  "version": "1.1.0",
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "default_locale": "en",
  "permissions": [
    "tabs",
    "clipboardWrite",
    "contextMenus",
    "<all_urls>"
  ],
  "content_security_policy": "script-src 'self'; child-src 'self' blob:;",
  "browser_specific_settings": {
    "gecko": {
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      },
      "id": "{2aa603f5-c130-4489-94cf-9e1f52d492ab}"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "Dal QRcode",
    "default_popup": "popup.html"
  }
}