Examine source code of AufwandHelper

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    "gecko": {
      "id": "{a39f3865-747c-4281-8efc-b609f869b6e8}"
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  "manifest_version": 3,
  "name": "AufwandHelper",
  "description": "Erweiterung um leichter Aufwand zu buchen.",
  "version": "1.9",
  "action": {
    "default_icon": "icon.png",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://*/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "permissions": [
    "activeTab",
    "storage"
  ],
  "host_permissions": [
    "http://*/",
    "https://*/"
  ]
}