Examine source code of Search Hit Hider and infinite scroll

{
  "manifest_version": 3,
  "name": "Search Hit Hider and Infinite Scroll",
  "version": "1.7.0",
  "description": "Hide unwanted domains from search results with one click. Auto-load more results as you scroll. Supports Google, DuckDuckGo, Bing, Yandex, Baidu, and Brave Search.",
  "author": "Istiaq-Edu",
  "homepage_url": "https://github.com/Istiaq-Edu/Search-Hit-Hider",
  "icons": {
    "16": "assets/icons/icon-16.png",
    "32": "assets/icons/icon-32.png",
    "48": "assets/icons/icon-48.png",
    "96": "assets/icons/icon-96.png",
    "128": "assets/icons/icon-128.png"
  },
  "action": {
    "default_popup": "popup/index.html",
    "default_icon": {
      "16": "assets/icons/icon-16.png",
      "32": "assets/icons/icon-32.png",
      "48": "assets/icons/icon-48.png",
      "128": "assets/icons/icon-128.png"
    },
    "default_title": "Search Hit Hider and Infinite Scroll"
  },
  "background": {
    "scripts": [
      "background/service-worker.js"
    ],
    "type": "module"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.google.com/*",
        "*://*.google.co.uk/*",
        "*://*.google.ca/*",
        "*://*.google.com.au/*",
        "*://*.google.de/*",
        "*://*.google.fr/*",
        "*://*.google.co.jp/*",
        "*://*.google.co.in/*",
        "*://*.google.com.br/*",
        "*://*.google.ru/*",
        "*://*.google.it/*",
        "*://*.google.es/*",
        "*://*.google.nl/*",
        "*://*.google.pl/*",
        "*://*.google.com.mx/*",
        "*://*.google.com.tw/*",
        "*://*.google.com.hk/*",
        "*://*.google.be/*",
        "*://*.google.ch/*",
        "*://*.google.at/*",
        "*://*.google.se/*",
        "*://*.google.no/*",
        "*://*.google.dk/*",
        "*://*.google.fi/*",
        "*://*.google.com.ar/*",
        "*://*.google.com.tr/*",
        "*://*.google.gr/*",
        "*://*.google.pt/*",
        "*://*.google.ro/*",
        "*://*.google.hu/*",
        "*://*.google.cz/*",
        "*://*.google.co.nz/*",
        "*://*.google.co.za/*",
        "*://*.google.ie/*",
        "*://*.google.com.sg/*",
        "*://*.google.co.id/*",
        "*://*.google.com.ua/*",
        "*://*.google.com.ph/*",
        "*://*.google.com.vn/*",
        "*://*.google.com.sa/*",
        "*://*.google.ae/*",
        "*://duckduckgo.com/*",
        "*://noai.duckduckgo.com/*",
        "*://start.duckduckgo.com/*",
        "*://safe.duckduckgo.com/*",
        "*://www.bing.com/*",
        "*://yandex.com/*",
        "*://yandex.ru/*",
        "*://yandex.by/*",
        "*://yandex.kz/*",
        "*://yandex.ua/*",
        "*://yandex.tr/*",
        "*://yandex.fr/*",
        "*://yandex.de/*",
        "*://ya.ru/*",
        "*://www.baidu.com/*",
        "*://search.brave.com/*",
        "*://search.brave4u7jddbv7cyvyptnt5corw0tamlzo53lwd5s7vm223nr3ro2ryd.onion/*"
      ],
      "css": [
        "content/preload.css"
      ],
      "js": [
        "content/preload.js"
      ],
      "run_at": "document_start",
      "all_frames": false
    },
    {
      "matches": [
        "*://*.google.com/*",
        "*://*.google.co.uk/*",
        "*://*.google.ca/*",
        "*://*.google.com.au/*",
        "*://*.google.de/*",
        "*://*.google.fr/*",
        "*://*.google.co.jp/*",
        "*://*.google.co.in/*",
        "*://*.google.com.br/*",
        "*://*.google.ru/*",
        "*://*.google.it/*",
        "*://*.google.es/*",
        "*://*.google.nl/*",
        "*://*.google.pl/*",
        "*://*.google.com.mx/*",
        "*://*.google.com.tw/*",
        "*://*.google.com.hk/*",
        "*://*.google.be/*",
        "*://*.google.ch/*",
        "*://*.google.at/*",
        "*://*.google.se/*",
        "*://*.google.no/*",
        "*://*.google.dk/*",
        "*://*.google.fi/*",
        "*://*.google.com.ar/*",
        "*://*.google.com.tr/*",
        "*://*.google.gr/*",
        "*://*.google.pt/*",
        "*://*.google.ro/*",
        "*://*.google.hu/*",
        "*://*.google.cz/*",
        "*://*.google.co.nz/*",
        "*://*.google.co.za/*",
        "*://*.google.ie/*",
        "*://*.google.com.sg/*",
        "*://*.google.co.id/*",
        "*://*.google.com.ua/*",
        "*://*.google.com.ph/*",
        "*://*.google.com.vn/*",
        "*://*.google.com.sa/*",
        "*://*.google.ae/*"
      ],
      "js": [
        "content/index.js"
      ],
      "run_at": "document_idle",
      "all_frames": false
    },
    {
      "matches": [
        "*://duckduckgo.com/*",
        "*://noai.duckduckgo.com/*",
        "*://start.duckduckgo.com/*",
        "*://safe.duckduckgo.com/*"
      ],
      "js": [
        "content/index.js"
      ],
      "run_at": "document_idle",
      "all_frames": false
    },
    {
      "matches": [
        "*://www.bing.com/*"
      ],
      "js": [
        "content/index.js"
      ],
      "run_at": "document_idle",
      "all_frames": false
    },
    {
      "matches": [
        "*://yandex.com/*",
        "*://yandex.ru/*",
        "*://yandex.by/*",
        "*://yandex.kz/*",
        "*://yandex.ua/*",
        "*://yandex.tr/*",
        "*://yandex.fr/*",
        "*://yandex.de/*",
        "*://ya.ru/*"
      ],
      "js": [
        "content/index.js"
      ],
      "run_at": "document_idle",
      "all_frames": false
    },
    {
      "matches": [
        "*://www.baidu.com/*"
      ],
      "js": [
        "content/index.js"
      ],
      "run_at": "document_idle",
      "all_frames": false
    },
    {
      "matches": [
        "*://search.brave.com/*",
        "*://search.brave4u7jddbv7cyvyptnt5corw0tamlzo53lwd5s7vm223nr3ro2ryd.onion/*"
      ],
      "js": [
        "content/index.js"
      ],
      "run_at": "document_idle",
      "all_frames": false
    }
  ],
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "*://*.google.com/*",
    "*://*.google.co.uk/*",
    "*://*.google.ca/*",
    "*://*.google.com.au/*",
    "*://*.google.de/*",
    "*://*.google.fr/*",
    "*://*.google.co.jp/*",
    "*://*.google.co.in/*",
    "*://*.google.com.br/*",
    "*://*.google.ru/*",
    "*://*.google.it/*",
    "*://*.google.es/*",
    "*://*.google.nl/*",
    "*://*.google.pl/*",
    "*://*.google.com.mx/*",
    "*://*.google.com.tw/*",
    "*://*.google.com.hk/*",
    "*://*.google.be/*",
    "*://*.google.ch/*",
    "*://*.google.at/*",
    "*://*.google.se/*",
    "*://*.google.no/*",
    "*://*.google.dk/*",
    "*://*.google.fi/*",
    "*://*.google.com.ar/*",
    "*://*.google.com.tr/*",
    "*://*.google.gr/*",
    "*://*.google.pt/*",
    "*://*.google.ro/*",
    "*://*.google.hu/*",
    "*://*.google.cz/*",
    "*://*.google.co.nz/*",
    "*://*.google.co.za/*",
    "*://*.google.ie/*",
    "*://*.google.com.sg/*",
    "*://*.google.co.id/*",
    "*://*.google.com.ua/*",
    "*://*.google.com.ph/*",
    "*://*.google.com.vn/*",
    "*://*.google.com.sa/*",
    "*://*.google.ae/*",
    "*://duckduckgo.com/*",
    "*://noai.duckduckgo.com/*",
    "*://start.duckduckgo.com/*",
    "*://safe.duckduckgo.com/*",
    "*://www.bing.com/*",
    "*://yandex.com/*",
    "*://yandex.ru/*",
    "*://yandex.by/*",
    "*://yandex.kz/*",
    "*://yandex.ua/*",
    "*://yandex.tr/*",
    "*://yandex.fr/*",
    "*://yandex.de/*",
    "*://ya.ru/*",
    "*://www.baidu.com/*",
    "*://search.brave.com/*",
    "*://search.brave4u7jddbv7cyvyptnt5corw0tamlzo53lwd5s7vm223nr3ro2ryd.onion/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{b7e3a1d2-4f8c-4a9e-b5d6-2c0f1e3a7b9d}",
      "strict_min_version": "112.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}