Examine source code of Blockr – Free Website & Distraction Blocker

{
  "manifest_version": 3,
  "name": "Blockr – Free Website & Distraction Blocker",
  "version": "1.0.4",
  "description": "Free website and distraction blocker to help you focus, study, work, and block distracting websites.",
  "permissions": [
    "storage",
    "declarativeNetRequest",
    "declarativeNetRequestWithHostAccess",
    "tabs",
    "alarms"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "service-worker.js"
    ]
  },
  "action": {
    "default_title": "Blockr",
    "default_popup": "popup.html"
  },
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "blocked.html",
        "blocked.css",
        "blocked.js",
        "welcome.html",
        "welcome.css",
        "welcome.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "blockr@omar.dev",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}