Examine source code of Randomhunter

{
  "manifest_version": 2,
  "name": "Randomhunter",
  "version": "2.5resigned1",
  "description": "Get random product from Producthunt in every new tab.",
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "icon16.png",
      "24": "icon24.png",
      "32": "icon32.png"
    },
    "default_title": "Randomhunter"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "chrome_url_overrides": {
    "newtab": "product.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.producthunt.com/*"
      ],
      "js": [
        "script.js"
      ]
    }
  ],
  "permissions": [
    "tabs",
    "https://producthunt.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{c79630cb-4eb0-4728-8a22-00fa6cd6b7b2}"
    }
  }
}