SECURITY REPORT · EXTENSHI SCAN
Client Challenge
Firefox extension·by 雪哥
51
/ 100 SAFETY SCORE
RISKY
Several elevated signals. Read the findings before sharing this with your team.
Likely abandonedsafety score reduced by 30 points
- No update in over 5 years
- The developer's website is no longer reachable
Why this matters
An unmaintained extension keeps whatever flaws it shipped with, and a listing with users but no owner is an attractive target to buy and repurpose.
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
40%of extensions carry more risk
Riskier ←→ Safer
Ranked against 397,149 extensions
In Photos Music Videos
21%of photos music videos extensions carry more risk
Riskier ←→ Safer
Ranked against 11,069 photos music videos extensions
Findings
9
median 4Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
4
median 3Declared in manifest
Active users
45
median 6vs category median
Findings breakdown
Automated security signal · 9 distinct issues across 6 severities
9
distinct issues
detected
detected
Critical111%
High111%
Needs Review00%
Medium667%
Low111%
Info00%
Permissions requested
2 risky permissions of 4 total
1 critical permission require attention
This extension requests 4 permissions in total. 2 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
Access browser cookies
Can read and modify cookies, potentially accessing login sessions
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
Are you the author of Client Challenge?
Claim this extension to respond to findings, add context, and earn a verified badge on extenshi.io.
Add the badge to your README
Show Client Challenge's live security score on GitHub or in your docs
Scan performed by extenshi.io · Sep 15, 2026
Browser extensions made transparent.