Examine source code of Ad Blocker Pro - AdWall

{
  "manifest_version": 3,
  "name": "Ad Blocker Pro - AdWall",
  "short_name": "AdWall",
  "version": "1.1",
  "description": "Unmatched ad blocker against advertising and pop-ups. Blocks ads on YouTube, Facebook and all other websites.",
  "browser_specific_settings": {
    "gecko": {
      "id": "adwall@adwall.ext",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "permissions": [
    "storage",
    "activeTab",
    "scripting",
    "declarativeNetRequest",
    "declarativeNetRequestFeedback",
    "webRequest",
    "contextMenus",
    "tabs",
    "alarms",
    "cookies"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "warning/warning.html",
        "warning/warning.css",
        "warning/warning.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content/apply-rules.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content/popup-blocker.js"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "*://www.youtube.com/*"
      ],
      "js": [
        "content/youtube.js"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "*://www.google.com/search*",
        "*://google.com/search*",
        "*://www.bing.com/search*",
        "*://bing.com/search*"
      ],
      "js": [
        "content/search-ads.js"
      ],
      "run_at": "document_start"
    }
  ],
  "declarative_net_request": {
    "rule_resources": [
      {
        "id": "adblock_rules",
        "enabled": true,
        "path": "filters/rules-ads.json"
      },
      {
        "id": "privacy_rules",
        "enabled": false,
        "path": "filters/rules-privacy.json"
      },
      {
        "id": "social_rules",
        "enabled": false,
        "path": "filters/rules-social.json"
      },
      {
        "id": "security_rules",
        "enabled": false,
        "path": "filters/rules-security.json"
      },
      {
        "id": "other_rules",
        "enabled": true,
        "path": "filters/rules-other.json"
      }
    ]
  }
}