Examine source code of Affordab.ly

{
  "description": "Affordab.ly: Earn free crypto when you shop.",
  "name": "Affordab.ly: Crypto Cashback As You Shop",
  "manifest_version": 2,
  "version": "0.0.20",
  "default_locale": "en",
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "browser-polyfill.min.js",
        "content.js"
      ],
      "css": [
        "assets/stylesheets/popups.css"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "web_accessible_resources": [
    "assets/img/logo-horizontal-white-small.png",
    "assets/img/logo-white-square-icon.png",
    "assets/img/close.png",
    "assets/img/close-circle.png",
    "assets/img/clicking.png"
  ],
  "permissions": [
    "storage",
    "nativeMessaging",
    "http://*/*",
    "https://*/*"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "Affordab.ly",
    "default_icon": {
      "16": "assets/img/affordably-logo-16.png",
      "32": "assets/img/affordably-logo-32.png",
      "48": "assets/img/affordably-logo-48.png",
      "128": "assets/img/affordably-logo-128.png"
    }
  },
  "icons": {
    "16": "assets/img/affordably-logo-16.png",
    "48": "assets/img/affordably-logo-48.png",
    "128": "assets/img/affordably-logo-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "noreply@affordab.ly"
    }
  }
}