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SECURITY REPORT · EXTENSHI SCAN

Client Challenge

Firefox extension·by 0101
72
/ 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
17%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 415,560 extensions
In Photos Music Videos
8%of photos music videos extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 11,259 photos music videos extensions
Findings
259
median 5Lower is safer
Critical findings
2
median 0Severity = Critical
Permissions
11
median 3Declared in manifest
Active users
3440
median 6vs category median

Findings breakdown

Automated security signal · 259 distinct issues across 6 severities
259
distinct issues
detected

Permissions requested

6 risky permissions of 11 total
6 high-risk permissions require attention
This extension requests 11 permissions in total. 6 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
Observe web requests

Can monitor all network requests made by the browser

High
Manage downloads

Can initiate downloads and access your download history

High
Execute scripts in pages

Can inject and execute JavaScript code in web pages

High
Access all HTTPS sites

Can read and modify content on all encrypted websites

High
Access all HTTP sites

Can read and modify content on all non-encrypted websites

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
Add context menu items

Can add custom items to the right-click context menu

Low
Schedule tasks

Can schedule periodic background tasks

Low
Block network requests (declarative)

Can block or redirect network requests using predefined rules without seeing content

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Scan performed by extenshi.io · Oct 19, 2026
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