Examine source code of Followly

{
  "manifest_version": 2,
  "name": "__MSG_name__",
  "version": "2.1.0",
  "description": "__MSG_description__",
  "author": "JustFox",
  "default_locale": "en",
  "icons": {
    "16": "assets/icons/icon16.png",
    "48": "assets/icons/icon48.png",
    "128": "assets/icons/icon128.png"
  },
  "browser_action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "assets/icons/icon16.png",
      "48": "assets/icons/icon48.png",
      "128": "assets/icons/icon128.png"
    },
    "default_title": "__MSG_name__"
  },
  "background": {
    "scripts": [
      "background/background.js"
    ],
    "persistent": false
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.instagram.com/*"
      ],
      "js": [
        "content/instagram-scraper.js"
      ],
      "css": [
        "assets/css/overlay.css"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://followly.app/*",
        "https://*.followly.app/*"
      ],
      "js": [
        "content/followly-auth-bridge.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "permissions": [
    "storage",
    "tabs",
    "activeTab",
    "alarms",
    "notifications",
    "https://www.instagram.com/*",
    "https://*.azurewebsites.net/*",
    "https://api.followly.app/*",
    "https://cdn.paddle.com/*",
    "https://*.paddle.com/*"
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "web_accessible_resources": [
    "assets/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "followly@virtualox.io",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "built_in": false,
        "required": [
          "none"
        ]
      }
    }
  }
}