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SECURITY REPORT · EXTENSHI SCAN

Client Challenge

Firefox extension·by whywen
74
/ 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

Client Challenge's safety score vs every other extension we've scanned
Globally
22%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 415,560 extensions
In Tabs
9%of tabs extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 12,641 tabs extensions
Findings
14
median 5Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
7
median 3Declared in manifest
Active users
1
median 3vs category median

Findings breakdown

Automated security signal · 14 distinct issues across 6 severities
14
distinct issues
detected

Permissions requested

3 risky permissions of 7 total
3 high-risk permissions require attention
This extension requests 7 permissions in total. 3 of them grant broad capabilities that are worth a careful look.
High
Access browsing history

Can read and modify your complete browsing history

High
View open tabs

Can see URLs and titles of all open tabs

High
Delete browsing data

Can remove browsing history, cookies, cache, and other browsing data

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Access session data

Can query and restore recently closed tabs and windows

Medium
Monitor navigation

Can observe and track tab navigation events and URL changes

Medium
Unlimited local storage

Can store large amounts of data locally without size limits

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Scan performed by extenshi.io · Oct 16, 2026
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