Examine source code of Reason First

{
  "manifest_version": 2,
  "name": "Focus Lock",
  "version": "1.4.14",
  "description": "One tab, one focus, zero distractions. (Security & Compliance Update)",
  "permissions": [
    "tabs",
    "storage",
    "webNavigation",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "scripts/background.js"
    ],
    "persistent": true
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "scripts/content.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ],
  "browser_action": {
    "default_icon": "icons/icon-48.png",
    "default_popup": "popup/popup.html",
    "default_title": "Focus Lock"
  },
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png",
    "512": "icons/icon-512.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "focuslock@manus.im",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}