extenshi.io
SECURITY REPORT · EXTENSHI SCAN

Client Challenge

Firefox extension·by histre
78
/ 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
34%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 415,831 extensions
In Social & Communication
20%of social & communication extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 13,745 social & communication extensions
Findings
194
median 7Lower is safer
Critical findings
2
median 0Severity = Critical
Permissions
7
median 3Declared in manifest
Active users
12
median 4vs category median

Findings breakdown

Automated security signal · 194 distinct issues across 6 severities
194
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
View open tabs

Can see URLs and titles of all open tabs

High
Execute scripts in pages

Can inject and execute JavaScript code in web pages

High
Access browsing history(optional)

Can read and modify your complete browsing history

Medium
Add context menu items

Can add custom items to the right-click context menu

Medium
Monitor navigation

Can observe and track tab navigation events and URL changes

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/21526)](https://catalog.extenshi.io/extensions/21526/security)
HTML
<a href="https://catalog.extenshi.io/extensions/21526/security"><img src="https://catalog.extenshi.io/api/badge/21526" alt="Extenshi security score" /></a>

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

Scan performed by extenshi.io · Oct 19, 2026
Browser extensions made transparent.