SECURITY REPORT · EXTENSHI SCAN
Client Challenge
Firefox extension·by William
85
/ 100 SAFETY SCORE
EXCELLENT
Looks clean. No meaningful risks detected in this scan.
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
55%of extensions carry more risk
Riskier ←→ Safer
Ranked against 403,022 extensions
In Other
23%of other extensions carry more risk
Riskier ←→ Safer
Ranked against 28,734 other extensions
Findings
20
median 3Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
3
median 3Declared in manifest
Active users
6
median 2vs category median
Findings breakdown
Automated security signal · 20 distinct issues across 6 severities
20
distinct issues
detected
detected
Critical00%
High15%
Needs Review00%
Medium1785%
Low210%
Info00%
Permissions requested
1 risky permission of 3 total
1 high-risk permission require attention
This extension requests 3 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
High
View open tabs
Can see URLs and titles of all open tabs
Medium
Store local data
Can save data locally in the browser for persistence
Info
*://claude.ai/*
No additional information available.
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Scan performed by extenshi.io · Aug 1, 2026
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