Examine source code of Notebooker

{
  "manifest_version": 3,
  "name": "Notebooker",
  "description": "Save and organize files to your Notebooker account",
  "version": "1.1.4",
  "browser_specific_settings": {
    "gecko": {
      "id": "extension@notebooker.app",
      "strict_min_version": "112.0"
    },
    "gecko_android": {
      "strict_min_version": "120.0"
    }
  },
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "action": {
    "default_popup": "extensions/firefox/popup/index.html",
    "default_title": "Save to Notebooker",
    "default_icon": {
      "16": "icons/icon-16.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "sidebar_action": {
    "default_title": "Notebooker",
    "default_panel": "extensions/firefox/sidebar/index.html",
    "default_icon": "icons/icon-48.png"
  },
  "permissions": [
    "storage",
    "activeTab"
  ],
  "host_permissions": [
    "https://app.notebooker.ai/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://app.notebooker.ai/extension/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  }
}