SECURITY REPORT · EXTENSHI SCAN

Client Challenge

Firefox extension·by tzp
52
/ 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

Client Challenge's safety score vs every other extension we've scanned
Globally
2%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 402,632 extensions
In Download Management
1%of download management extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 4,807 download management extensions
Findings
87
median 5Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
10
median 4Declared in manifest
Active users
4
median 9vs category median

Findings breakdown

Automated security signal · 87 distinct issues across 6 severities
87
distinct issues
detected

Permissions requested

4 risky permissions of 10 total
1 critical permission require attention
This extension requests 10 permissions in total. 4 of them grant broad capabilities that are worth a careful look.
Critical
Access to all websites

Can read and modify content on every website you visit

High
Manage downloads

Can initiate downloads and access your download history

High
View open tabs

Can see URLs and titles of all open tabs

High
Developer tools

Can extend browser developer tools with custom panels

Medium
Access user identity

Can get OAuth2 tokens and access your Google account identity

Medium
Custom menus

Can add custom items to the browser context menu

Medium
Write to clipboard

Can place content onto your clipboard

Medium
Add context menu items

Can add custom items to the right-click context menu

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Access bookmarks

Can read and modify your saved bookmarks

Are you the author of Client Challenge?

Claim this extension to respond to findings, add context, and earn a verified badge on extenshi.io.

Claim this extension

Add the badge to your README

Show Client Challenge's live security score on GitHub or in your docs
Extenshi security score badge preview
Markdown
[![Extenshi security score](https://catalog.extenshi.io/api/badge/106862)](https://catalog.extenshi.io/extensions/106862/security)
HTML
<a href="https://catalog.extenshi.io/extensions/106862/security"><img src="https://catalog.extenshi.io/api/badge/106862" alt="Extenshi security score" /></a>

The badge always shows the current score — it updates automatically after every scan.

Scan performed by extenshi.io · Aug 24, 2026
Browser extensions made transparent.