Examine source code of Simple Template

{
  "manifest_version": 3,
  "name": "Simple Template",
  "version": "1.0",
  "description": "Ajoute des boutons pour enregistrer et charger des messages préenregistrés sur XenForo.",
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "*://*/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "simpletemplate@hertinox.fr"
    }
  }
}