Examine source code of ExtEtiquetas-AGHU

{
  "manifest_version": 2,
  "name": "ExtEtiquetas-AGHU",
  "version": "1.7",
  "description": "Extensão Firefox para impressão de etiquetas no AGHU.",
  "author": "Equipe HU-UFSC",
  "browser_specific_settings": {
    "gecko": {
      "id": "extetiquetas-aghu@ebserh.local",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://10.94.61.155/stg-aghu/*",
        "*://10.94.61.155/aghu/*",
        "*://10.94.61.160:8080/aghu/*",
        "https://hu-ufsc.aghu.ebserh.gov.br/stg-aghu/*",
        "https://hu-ufsc.aghu.ebserh.gov.br/aghu/*",
        "http://10.94.61.160:8080/aghu/*"
      ],
      "js": [
        "direct-inject.js"
      ],
      "run_at": "document_idle",
      "all_frames": true
    }
  ],
  "permissions": [
    "activeTab",
    "tabs"
  ]
}