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SECURITY REPORT · EXTENSHI SCAN

NewTab PowerTools

Firefox extension·by Markus Perdrizat
73
/ 100 SAFETY SCORE
CAUTION
Mostly fine, but a few things worth reviewing before you install.

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

NewTab PowerTools's safety score vs every other extension we've scanned
Globally
20%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 397,380 extensions
In Appearance
5%of appearance extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 18,877 appearance extensions
Findings
26
median 3Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
12
median 2Declared in manifest
Active users
2
median 3vs category median

Findings breakdown

Automated security signal · 26 distinct issues across 6 severities
26
distinct issues
detected

Permissions requested

5 risky permissions of 12 total
5 high-risk permissions require attention
This extension requests 12 permissions in total. 5 of them grant broad capabilities that are worth a careful look.
High
View open tabs

Can see URLs and titles of all open tabs

High
View most visited sites

Can see your most frequently visited websites

High
Observe web requests

Can monitor all network requests made by the browser

High
Manage downloads(optional)

Can initiate downloads and access your download history

High
Access browsing history(optional)

Can read and modify your complete browsing history

Medium
Custom menus

Can add custom items to the browser context menu

Medium
Access session data

Can query and restore recently closed tabs and windows

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Monitor navigation

Can observe and track tab navigation events and URL changes

Medium
Access bookmarks

Can read and modify your saved bookmarks

Low
Detect idle state

Can detect when your machine is idle, active, or locked

Low
Trigger searches

Can trigger searches using the default search engine

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Scan performed by extenshi.io · Aug 19, 2026
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