Examine source code of MetaSpy - Protection

{
  "manifest_version": 3,
  "name": "MetaSpy - Protection",
  "version": "1.3",
  "description": "Scans current URL and Gmail for Phishing, Malware, and Threats. Blocks Ads, Trackers, and Popups. Solution by: alainpicard.ca",
  "browser_specific_settings": {
    "gecko": {
      "id": "metaspy-protection@alainpicard.ca",
      "strict_min_version": "128.0"
    }
  },
  "permissions": [
    "activeTab",
    "scripting",
    "browsingData",
    "declarativeNetRequest",
    "storage"
  ],
  "host_permissions": [
    "https://safebrowsing.googleapis.com/*",
    "https://www.virustotal.com/*",
    "<all_urls>"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "popup_blocker.js"
      ],
      "all_frames": true,
      "match_about_blank": true,
      "run_at": "document_start"
    },
    {
      "matches": [
        "*://www.youtube.com/*",
        "*://m.youtube.com/*"
      ],
      "js": [
        "youtube_adblock.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "declarative_net_request": {
    "rule_resources": [
      {
        "id": "ad_blocking_rules",
        "enabled": false,
        "path": "rules.json"
      },
      {
        "id": "tracking_blocking_rules",
        "enabled": false,
        "path": "tracking_rules.json"
      },
      {
        "id": "https_enforcement_rules",
        "enabled": false,
        "path": "https_rules.json"
      },
      {
        "id": "youtube_ad_blocking_rules",
        "enabled": false,
        "path": "youtube_rules.json"
      }
    ]
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  }
}