SECURITY REPORT · EXTENSHI SCAN
Client Challenge
Firefox extension·by lvnkae
84
/ 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
50%of extensions carry more risk
Riskier ←→ Safer
Ranked against 403,277 extensions
In Social & Communication
29%of social & communication extensions carry more risk
Riskier ←→ Safer
Ranked against 13,675 social & communication extensions
Findings
23
median 5Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
4
median 3Declared in manifest
Active users
53
median 3vs category median
Findings breakdown
Automated security signal · 23 distinct issues across 6 severities
23
distinct issues
detected
detected
Critical00%
High00%
Needs Review00%
Medium2087%
Low29%
Info14%
Permissions requested
4 permissions declared
No risky permissions
4 permissions requested — none are flagged as risky.
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Add context menu items
Can add custom items to the right-click context menu
Info
https://www.hatena.ne.jp/*
No additional information available.
Info
https://b.hatena.ne.jp/*
No additional information available.
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 · Aug 25, 2026
Browser extensions made transparent.