Examine source code of ePorezna - TST

{
  "name": "ePorezna - TEST",
  "version": "3.0.0",
  "minimum_chrome_version": "88.0",
  "manifest_version": 3,
  "description": "Dodatak za rad sa sustavom ePorezna.",
  "icons": {
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "firefoxextensiontst@porezna-uprava.hr",
      "strict_min_version": "57.0"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*",
        "file:///*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "background": {
    "service_worker": "background.js"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "page.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "permissions": [
    "nativeMessaging"
  ],
  "externally_connectable": {
    "matches": [
      "*://*.teched.hr/*",
      "*://localhost/*",
      "*://*.apis-it.local/*",
      "*://*.porezna-uprava.hr/*"
    ]
  }
}