Examine source code of Website Blocker

{
  "manifest_version": 3,
  "name": "__MSG_appName__",
  "description": "__MSG_appDesc__",
  "default_locale": "en",
  "version": "1.0.13",
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "permissions": [
    "storage",
    "tabs",
    "alarms",
    "notifications"
  ],
  "action": {
    "default_icon": "icon/block48.png",
    "default_popup": "index.html"
  },
  "icons": {
    "16": "icon/block16.png",
    "48": "icon/block48.png",
    "128": "icon/block128.png"
  },
  "host_permissions": [
    "https://softpulseinfotech.com/*",
    "https://website-blocker.extfy.com/*",
    "https://extfy.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "js/content-keyword-blocker.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{5a205815-af02-49d5-9459-fbabb300576e}",
      "strict_min_version": "109.0"
    }
  }
}