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YouTube to NotebookLM

Version 1.0.25 View in Chrome Web Store

Last scanned: about 3 hours ago

Extension Details

Rating: 4.9 ★ (372 ratings)

Users: 100,000

Context-Aware Verdict

HIGH

Overall Risk

Trust Factors:

The extension has strong user adoption with 100,000 users and an excellent 4.9-star rating from 372 reviews, suggesting legitimate functionality and user satisfaction. The specific focus on YouTube to NotebookLM integration indicates a clear, defined purpose that users find valuable.

Concerns:

The extension requests extremely broad permissions that far exceed what's necessary for YouTube-to-NotebookLM functionality. The <all_urls> host permission and universal content script injection (*://*/*) allow access to every website you visit, not just YouTube. This creates significant privacy and security risks, as the extension can read sensitive data from banking sites, email, social media, and any other web content. The tabs permission enables monitoring of your browsing activity across all websites. While storage permissions are reasonable for saving content, the unlimited storage capability could be excessive.

Recommendations:

Despite the high user rating, the overly broad permissions present substantial privacy risks. Consider running this extension in a separate Chrome profile dedicated only to YouTube and NotebookLM activities to limit exposure. Alternatively, look for similar extensions with more restrictive permissions that only access YouTube domains. If you must use this extension in your main profile, regularly review what data it might be collecting and consider the trade-off between convenience and privacy protection.

Findings

HIGH

Broad Content Script Injection

This extension can inject scripts into any website. This means it could potentially read sensitive data, modify website content, or steal credentials.

HIGH

Broad Host Permissions

This extension has broad host permissions allowing it to access many or all websites. This could potentially be used to steal sensitive data or track browsing activity.

HIGH

High-Risk Permission: tabs

This extension has the tabs permission. Can access browser tab information and manipulate tabs. This could potentially be used maliciously to compromise security or privacy.

MEDIUM

Medium-Risk Permission: contextMenus

This extension has the contextMenus permission. Can add items to the context menu.

MEDIUM

Medium-Risk Permission: storage

This extension has the storage permission. Can store data locally.

MEDIUM

Medium-Risk Permission: unlimitedStorage

This extension has the unlimitedStorage permission. Can store unlimited data locally.

Security Analysis Details

Required Permissions:

tabs
storage
contextMenus
scripting
unlimitedStorage

Host Permissions:

<all_urls>

Embedded URLs (27 total):

https://www.youtube.com/watch?v=L_Guz73e6fw	https://clients2.google.com/service/update2/crx
https://api.mixpanel.com/track?ip=1&data=	https://chromewebstore.google.com/detail/
https://notebooklm.google.com/	https://notebooklm.google.com/_/LabsTailwindUi/data/batchexecute
https://www.youtube.com/watch?v=	https://notebooklm.google.com/notebook/
https://accounts.google.com/ListAccounts?json=standard&source=ogb&md=1&cc=1&mn=1&mo=1&gpsia=1&fwput=860&listPages=1&origin=https%3A%2F%2Fwww.google.com	https://dub.sh/R54JZHj
https://github.com/facebook/regenerator/blob/main/LICENSE	http://www.example.com
https://bf400567be25b62fb781201dcb9bd725@o4509712863854592.ingest.us.sentry.io/4509712864968704	https://www.youtube.com
https://www.youtube.com/youtubei/v1/browse?key=	https://www.youtube.com/
https://www.youtube.com/channel/	https://addons.mozilla.org/en-US/firefox/addon/youtube-to-notebooklm/
https://chromewebstore.google.com/detail/youtube-to-notebooklm/kobncfkmjelbefaoohoblamnbackjggk/reviews#:~:text=Write%20a%20review	http://www.w3.org/2000/svg
https://fonts.gstatic.com/s/outfit/v11/QGYvz_MVcBeNP4NJuktqUYLkn8BJ.woff2	https://fonts.gstatic.com/s/outfit/v11/QGYvz_MVcBeNP4NJtEtqUYLknw.woff2
https://vuejs.org/error-reference/#runtime-	http://www.w3.org/1998/Math/MathML
http://www.w3.org/1999/xlink	https://docs.sentry.io/platforms/javascript/best-practices/browser-extensions/
https://api.mixpanel.com

Raw Manifest

{
  "key": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqkAqGgFYU4JJ+Qh13NUEPx61xjWZukMij/5sMJVwWtM1c/pNNPjpUnalhWLx9XlHQmM+kr5ecdRSv63i22nxNnw5b0Qbjt02Q8ytwLCEhDB7Asrj6mP0Xhr7G+SUJ1WTVBx5Eut665rrmPhxlwDFLnFHbuEgV9ABTH6vQAdpqCC+6PUKxHbxv/xeflCs9BQU7HTRcnfWwnIj8NsK9TEkZ1otSLalBOMOYC3+HMB37ZGm9npREMCgxP80Hp4hdLkab/oiI0voFuPhJGYHw256IFGtXQYo4JQgwAKpRIXcqIEMYOvEIeVjXlbGM9Fj4Ub7GwchbRopNYfFjh1cJ26WqwIDAQAB",
  "name": "__MSG_appName__",
  "icons": {
    "16": "icon/icon_16.png",
    "32": "icon/icon_32.png",
    "48": "icon/icon_48.png",
    "128": "icon/icon_128.png"
  },
  "action": {
    "default_icon": {
      "16": "icon/icon_16.png",
      "32": "icon/icon_32.png",
      "48": "icon/icon_48.png",
      "128": "icon/icon_128.png"
    },
    "default_popup": "/ytlm-app/dist/index.html",
    "default_title": "__MSG_appName__"
  },
  "version": "1.0.25",
  "background": {
    "service_worker": "/build/background.js"
  },
  "short_name": "YouTube to NotebookLM",
  "update_url": "https://clients2.google.com/service/update2/crx",
  "description": "__MSG_shortDesc__",
  "permissions": [
    "tabs",
    "storage",
    "contextMenus",
    "scripting",
    "unlimitedStorage"
  ],
  "options_page": "/ytlm-app/dist/index.html",
  "default_locale": "en",
  "content_scripts": [
    {
      "js": [
        "/build/app.js"
      ],
      "run_at": "document_start",
      "matches": [
        "*://*/*"
      ],
      "all_frames": true
    },
    {
      "css": [
        "/build/context.css"
      ],
      "run_at": "document_start",
      "matches": [
        "https://*.youtube.com/*"
      ],
      "all_frames": true
    }
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "manifest_version": 3,
  "web_accessible_resources": [
    {
      "matches": [
        "<all_urls>"
      ],
      "resources": [
        "icon/*"
      ]
    }
  ]
}

by ✦ Astarte

YouTube to NotebookLM

Extension Details

Context-Aware Verdict

Findings

Security Analysis Details

Required Permissions:

Host Permissions:

Embedded URLs (27 total):

Raw Manifest

Detections

Manifest Findings