SECURITY REPORT · EXTENSHI SCAN
NotebookLM Extension (Gemini Notebook) - ExtendLM
Chrome extension·by ExtendLM
0
/ 100 SAFETY SCORE
RISKY
Several elevated signals. Read the findings before sharing this with your team.
Automated analysis of publicly available code — not a professional security audit. It may produce false positives and does not prove an extension is unsafe or safe. Treat it as one signal among many. Disclaimer · Report an issue
How it ranks
NotebookLM Extension (Gemini Notebook) - ExtendLM's safety score vs every other extension we've scanned
Globally
1%of extensions carry more risk
Riskier ←→ Safer
Ranked against 357,609 extensions
In Productivity
1%of productivity extensions carry more risk
Riskier ←→ Safer
Ranked against 177,115 productivity extensions
Findings
366
median 16Lower is safer
Critical findings
2
median 0Severity = Critical
Permissions
11
median 3Declared in manifest
Active users
60000
median 14vs category median
Findings breakdown
Automated security signal · 366 distinct issues across 6 severities
366
distinct issues
detected
detected
Scanners reported 409 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical21%
High4412%
Needs Review00%
Medium10328%
Low6919%
Info14840%
Permissions requested
5 risky permissions of 11 total
1 critical permission require attention
This extension requests 11 permissions in total. 5 of them grant broad capabilities that are worth a careful look.
Critical
Browser debugger access
Can attach to tabs and inspect/modify all page data using Chrome DevTools protocol
High
View open tabs
Can see URLs and titles of all open tabs
High
Execute scripts in pages
Can inject and execute JavaScript code in web pages
High
Manage downloads
Can initiate downloads and access your download history
High
Capture tab content
Can capture audio and video streams from browser tabs
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Unlimited local storage
Can store large amounts of data locally without size limits
Medium
Add context menu items
Can add custom items to the right-click context menu
Low
Create offscreen documents
Can create hidden documents for background processing tasks
Low
Run in background
Can run scripts in the background when not actively in use
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Scan performed by extenshi.io · Aug 13, 2026
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