Trolley

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Trolley",
  "version": "1.1",
  "description": "Compare over 10,000 products across supermarkets and shops. Your free online price comparison website.",
  "manifest_version": 3,
  "content_scripts": [
    {
      "matches": [
        "http://*.trolley.co.uk/*",
        "https://*.trolley.co.uk/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "action": {
    "default_popup": "popup.html",
    "default_title": "Trolley",
    "default_icon": "img/128.png"
  },
  "icons": {
    "16": "img/16.png",
    "48": "img/48.png",
    "128": "img/128.png"
  },
  "permissions": [
    "tabs"
  ],
  "host_permissions": [
    "https://www.trolley.co.uk/"
  ]
}