Examine source code of TrustDefence Online

{
  "description": "TrustDefence Global Cyber Reporting Platform",
  "manifest_version": 2,
  "name": "TrustDefence Online",
  "author": "TrustDefence",
  "version": "1.0",
  "homepage_url": "https://www.trustdefence.com",
  "icons": {
    "48": "icons/icon48.png"
  },
  "background": {
    "persistent": true,
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "activeTab",
    "tabs"
  ],
  "browser_action": {
    "default_icon": "icons/icon32.png"
  }
}