Examine source code of Ip-Insights for Firefox

{
  "manifest_version": 3,
  "name": "Ip-Insights for Firefox",
  "description": "Get Informations about Domnains and IP Adresses",
  "version": "1.1",
  "action": {
    "default_icon": "logo16.png"
  },
  "icons": {
    "16": "logo16.png",
    "32": "logo32.png",
    "48": "logo48.png",
    "128": "logo128.png"
  },
  "permissions": [
    "activeTab",
    "tabs"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "steinlarve@gmail.com"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  }
}