SECURITY REPORT · EXTENSHI SCAN
NewTab PowerTools
Firefox extension·by Markus Perdrizat
0
/ 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
19%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Appearance
4%of appearance extensions carry more risk
Riskier ←→ Safer
Ranked against 17,915 appearance extensions
Findings
26
median 3Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
12
median 2Declared in manifest
Active users
1
median 3vs category median
Findings breakdown
Automated security signal · 26 distinct issues across 6 severities
26
distinct issues
detected
detected
Critical14%
High519%
Needs Review00%
Medium1662%
Low415%
Info00%
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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