SECURITY REPORT · EXTENSHI SCAN
A Non-subscriber's Tool
Firefox extension·by cywu
0
/ 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
A Non-subscriber's Tool's safety score vs every other extension we've scanned
Globally
84%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Other
60%of other extensions carry more risk
Riskier ←→ Safer
Ranked against 26,888 other extensions
Findings
2
median 3Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
1
median 3Declared in manifest
Active users
28
median 2vs category median
Findings breakdown
Automated security signal · 2 distinct issues across 6 severities
2
distinct issues
detected
detected
Critical00%
High00%
Needs Review00%
Medium150%
Low150%
Info00%
Permissions requested
1 permission declared
No risky permissions
1 permission requested — none are flagged as risky.
Info
*://*.substack.com/*
No additional information available.
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Scan performed by extenshi.io · Jul 25, 2026
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