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What our analysis found

Notebook OS is not yet reviewed by Extension Auditor. Its permissions mean it can inject scripts into pages. It was last updated in October 2026.

Notebook OS

Notebook OS Chrome extension security report

ID: kjpnlkmamdilgopmcnheegoipmnpofmj

Supported Languages

🇺🇸English

Extension Info & Metadata

Status
Active
Version
2.7.0
Size
1.30 MB
Rating
5.0/5
Reviews
4
Users
580
Type
Extension
Updated
Oct 24, 2026
Category
Tools
Price
Paid
Featured
No
Visibility
Listed
Mature
No
By Google
No
Trusted
No
This publisherTrack record
1extension
All still listed

Publisher Contextual Analysis

Author
Med Lang Fanatic
MX records exist
Yes
Domain exists
Yes
Is disposable
No
Is role-based
No
Mailbox exists
Yes
Website
Visit
Extensions
1
Active
1
Obsolete
0
Listed
1
Unlisted
0
Users
580

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Screenshots & videos

Screenshot 2
Screenshot 3
Screenshot 4
Screenshot 5
Screenshot 6
Screenshot 7
Screenshot 8
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Screenshot 10
Screenshot 11

Install growth

Item
Type
Severity
Description
scripting
Permission
Critical
This permission allows injection and execution of JavaScript on any webpage. Rated Critical because it can modify page content, steal sensitive data, and inject malicious code into any site the extension has access to.
debugger
Permission
Critical
This permission grants the extension ability to debug and control other extensions and browser tabs. Rated Critical because it can access and modify other extensions' internal state, inject code, and access sensitive data from any tab.
downloads
Permission
High
This permission controls file downloads and accesses download history. Rated High because it can download malicious files, access sensitive downloaded documents, and track user download patterns.
Contextual Risk Factors
Risk Factor
High
The following context increases the overall risk: • 19% increase: Access to sensitive domains increases potential impact
storage
Permission
Medium
This permission allows storing data locally in the browser. Rated Medium because it can persist sensitive user data, track user activities over time, and potentially store malicious payloads.
unlimitedStorage
Permission
Medium
This permission removes storage quota restrictions. Rated Medium because it can store large amounts of user data without limits, potentially impacting browser performance and storing extensive tracking data.
tabs
Permission
Medium
This permission enables tab management and monitoring. Rated Medium because it can track open tabs, access tab metadata, and monitor user browsing patterns.
activeTab
Permission
Medium
This permission grants temporary access to the current tab. Rated Medium because it can access current page content when invoked, though limited to user-initiated actions.
https://notebooklm.google.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://notebook.google.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://lh3.googleusercontent.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://lh3.google.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://accounts.google.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://www.youtube.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://api.semanticscholar.org/*
Host
Medium
Host permission — access limited to this URL pattern.
https://api.openalex.org/*
Host
Medium
Host permission — access limited to this URL pattern.
https://translate.googleapis.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://api.crossref.org/*
Host
Medium
Host permission — access limited to this URL pattern.
https://api.unpaywall.org/*
Host
Medium
Host permission — access limited to this URL pattern.
https://www.ebi.ac.uk/*
Host
Medium
Host permission — access limited to this URL pattern.
https://europepmc.org/*
Host
Medium
Host permission — access limited to this URL pattern.
https://api.biorxiv.org/*
Host
Medium
Host permission — access limited to this URL pattern.
https://clinicaltrials.gov/*
Host
Medium
Host permission — access limited to this URL pattern.
https://www.medrxiv.org/*
Host
Medium
Host permission — access limited to this URL pattern.
https://www.biorxiv.org/*
Host
Medium
Host permission — access limited to this URL pattern.
https://medlangfanatic-be.onrender.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://*.coursera.org/*
Host
Medium
Host permission — access limited to this URL pattern.
https://*.udemy.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://*.edx.org/*
Host
Medium
Host permission — access limited to this URL pattern.
https://*.linkedin.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://medlangfanatic.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://www.medlangfanatic.com/*
Host
Medium
Host permission — access limited to this URL pattern.
https://json.excalidraw.com/*
Host
Medium
Host permission — access limited to this URL pattern.
Access to Sensitive Domains
Risk Factor
Medium
This extension requests access to sensitive domains: https://notebooklm.google.com/*, https://notebook.google.com/*, https://lh3.googleusercontent.com/*, https://lh3.google.com/*, https://accounts.google.com/*, https://translate.googleapis.com/*, https://*.linkedin.com/*
sidePanel
Permission
Low
This permission adds custom panels to the browser interface. Rated Low because it only affects browser UI elements and cannot access page content.

About this extension

Supercharge NotebookLM with folders, tags, concept maps, YouTube & academic search, Web Snip, and a side-panel Note Studio.

Read the publisher’s full description

Notebook OS turns NotebookLM into a real knowledge workspace. NotebookLM is powerful, but it stops at a flat list of notebooks and sources. Notebook OS adds the organization, capture, and study tools that knowledge workers, researchers, students, and clinicians actually need — right inside the pages you already use, through a clean side panel. WHAT YOU GET 📁 Folders & Tags Group your notebooks into folders and label them with tags. Finally find the right notebook in seconds instead of scrolling endlessly. 🧠 Concept Maps Turn dense sources into a visual concept map so you can see how ideas connect at a glance — perfect for research papers, guidelines, and study material. ▶️ YouTube Search & Transcript Capture Search YouTube (videos and playlists) without leaving your workflow, then add videos as sources. Pull clean transcripts straight from the panel. 🔬 Academic Search Search scholarly literature and pull relevant, on-topic results you can add as sources — no more copy-pasting between tabs. ✂️ Web Snip Clip any web page or selection and send it into NotebookLM as a source in one click. 📝 Side-Panel Note Studio Write, organize, and refine notes in a dedicated side panel that stays with you as you browse and research. 🎙️ Voice Brain Dump Capture ideas by voice and add them as an audio source — think out loud and keep moving. 🎨 Studio Recipes & Presenter Go from chat to tailored prompts to polished, presentation-ready artifacts with built-in recipes and themes. 📌 Artifact Shelf Pin and reopen your generated artifacts so your best work is always one click away. WHO IT'S FOR: - Researchers & academics managing dozens of sources - Students studying from videos, papers, and notes - Clinicians and professionals building knowledge bases - Anyone who wants NotebookLM to feel like a complete workspace PRIVACY Notebook OS works alongside your existing NotebookLM account. Your data stays yours — see our privacy policy for details. Install Notebook OS and supercharge the way you research, learn, and create.

User reviews

Extension files

Browse and explore files within this extension package

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No network indicators were extracted from this version.

Version
Size
Verdict
Findings
Permhash
2.7.0
Latest
1.30 MBNot scanned—
c3d8775b911b6601669b0da67e5ee7719d5b02d78b78f8808b407a1ce40cf783
2.6.4
0.72 MBNot scanned—
c3d8775b911b6601669b0da67e5ee7719d5b02d78b78f8808b407a1ce40cf783
2.6.3
0.72 MBNot scanned—
c3d8775b911b6601669b0da67e5ee7719d5b02d78b78f8808b407a1ce40cf783
2.6.2
0.71 MBNot scanned—
c3d8775b911b6601669b0da67e5ee7719d5b02d78b78f8808b407a1ce40cf783
2.6.1
0.53 MBNot scanned—
c3d8775b911b6601669b0da67e5ee7719d5b02d78b78f8808b407a1ce40cf783
2.6.0
0.53 MBNot scanned—
c3d8775b911b6601669b0da67e5ee7719d5b02d78b78f8808b407a1ce40cf783
2.5.0
0.53 MBNot scanned—
c3d8775b911b6601669b0da67e5ee7719d5b02d78b78f8808b407a1ce40cf783
2.3.0
0.50 MBNot scanned—
c3d8775b911b6601669b0da67e5ee7719d5b02d78b78f8808b407a1ce40cf783
2.2.4
0.24 MBNot scanned—
c3d8775b911b6601669b0da67e5ee7719d5b02d78b78f8808b407a1ce40cf783
2.2.2
0.27 MBNot scanned—
c3d8775b911b6601669b0da67e5ee7719d5b02d78b78f8808b407a1ce40cf783
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Code Diff

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