Examine source code of Share Files - TransferWoW

{
  "manifest_version": 2,
  "name": "Share Files - TransferWoW",
  "short_name": "TransferWoW",
  "version": "2.0",
  "description": "Send & receive files instantly! Fast, secure P2P file sharing like WeTransfer. No size limits. Includes 1:1 Video Call.",
  "author": "Suraj JD",
  "homepage_url": "https://transferwow.com",
  "permissions": [
    "storage",
    "activeTab",
    "contextMenus",
    "alarms",
    "https://transferwow.com/*"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "transferwow@transferwow.com",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}