Examine source code of InsightzClub

{
  "manifest_version": 2,
  "author": "contactus@insightzclub.com",
  "name": "InsightzClub",
  "description": "This extension helps InsightzClub to understand your browsing behaviour.",
  "version": "1.0.8",
  "background": {
    "scripts": [
      "function.js",
      "history.js",
      "sem.js",
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "function.js",
        "content.js"
      ]
    }
  ],
  "browser_action": {
    "default_icon": "/assets/images/icon.png",
    "default_title": "InsightzClub"
  },
  "permissions": [
    "*://*/",
    "storage",
    "webRequestBlocking",
    "webRequest",
    "history",
    "tabs"
  ],
  "icons": {
    "16": "/assets/images/icon16.png",
    "48": "/assets/images/icon48.png",
    "128": "/assets/images/icon128.png"
  }
}