Examine source code of Coupon UAE

{
  "name": "Coupon UAE",
  "version": "1.0.3",
  "manifest_version": 2,
  "description": "Online shopping coupons dedicated to the UAE. Used without registration. All coupons are valid.",
  "icons": {
    "16": "/icons/icon16.png",
    "32": "/icons/icon32.png",
    "48": "/icons/icon48.png",
    "128": "/icons/icon128.png"
  },
  "background": {
    "page": "background.html"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "19": "/icons/icon19.png",
      "38": "/icons/icon38.png"
    },
    "default_title": "Coupon UAE"
  },
  "options_page": "options.html",
  "permissions": [
    "tabs",
    "clipboardWrite",
    "https://metrobrazil.com/**",
    "https://www.noon.com/**",
    "https://www.glasseslit.com/**",
    "https://www.namshi.com/**",
    "https://qasralawani.com/**",
    "https://beyondthebeach.com/**",
    "https://www.betterlifeuae.com/**",
    "https://eyewa.com/ae-en/**",
    "https://bloomingdales.ae/**",
    "https://www.jashanmal.com/**",
    "https://blendshome.com/**",
    "https://www.gap.ae/**",
    "https://mamasandpapas.ae/**",
    "https://ae.diesel.com/**",
    "https://linkstore.ae/**",
    "https://www.dermazonestore.com/**",
    "https://throwmenot.ae/**",
    "https://www.amazon.ae/**"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://metrobrazil.com/*",
        "https://www.noon.com/*",
        "https://www.glasseslit.com/*",
        "https://www.namshi.com/*",
        "https://qasralawani.com/*",
        "https://beyondthebeach.com/*",
        "https://www.betterlifeuae.com/*",
        "https://eyewa.com/ae-en/*",
        "https://bloomingdales.ae/*",
        "https://www.jashanmal.com/*",
        "https://blendshome.com/*",
        "https://www.gap.ae/*",
        "https://mamasandpapas.ae/*",
        "https://ae.diesel.com/*",
        "https://linkstore.ae/*",
        "https://www.dermazonestore.com/*",
        "https://throwmenot.ae/*",
        "https://www.amazon.ae/*"
      ],
      "js": [
        "scripts/content.js"
      ]
    }
  ],
  "externally_connectable": {
    "matches": [
      "https://metrobrazil.com/*",
      "https://www.noon.com/*",
      "https://www.glasseslit.com/*",
      "https://www.namshi.com/*",
      "https://qasralawani.com/*",
      "https://beyondthebeach.com/*",
      "https://www.betterlifeuae.com/*",
      "https://eyewa.com/ae-en/*",
      "https://bloomingdales.ae/*",
      "https://www.jashanmal.com/*",
      "https://blendshome.com/*",
      "https://www.gap.ae/*",
      "https://mamasandpapas.ae/*",
      "https://ae.diesel.com/*",
      "https://linkstore.ae/*",
      "https://www.dermazonestore.com/*",
      "https://throwmenot.ae/*",
      "https://www.amazon.ae/*"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{fa0aea81-0158-4316-8784-0c7fbcb87fa6}"
    }
  }
}