Examine source code of Instagram Unfollow Tool

{
  "manifest_version": 3,
  "name": "Instagram Unfollow Tool",
  "version": "4.7.2",
  "description": "Veja quem não te segue de volta no Instagram e remova em massa. Versão Free e Premium disponíveis.",
  "homepage_url": "https://mpago.la/1J7DXbN",
  "permissions": [
    "activeTab",
    "storage"
  ],
  "host_permissions": [
    "*://*.instagram.com/*",
    "*://*.cdninstagram.com/*",
    "*://*.fbcdn.net/*",
    "https://firestore.googleapis.com/*",
    "https://api.emailjs.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.instagram.com/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icon16.png",
      "32": "icon32.png",
      "48": "icon48.png",
      "128": "icon128.png"
    }
  },
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "instagram-unfollow-tool@rennerox",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}