Examine source code of Drachenlordne

{
  "manifest_version": 2,
  "name": "Drachenlordne",
  "version": "1.1",
  "description": "Drachenlord your browsing - A Firefox extension to replace all endings of en with ne",
  "permissions": [],
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "drachenlordne@afkara.dev",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}