SECURITY REPORT · EXTENSHI SCAN
Ninja Listening Trainer for YouTube
Chrome extension·by kouichi.c.nakamura
0
/ 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
Ninja Listening Trainer for YouTube's safety score vs every other extension we've scanned
Globally
52%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Productivity
65%of productivity extensions carry more risk
Riskier ←→ Safer
Ranked against 177,133 productivity extensions
Findings
16
median 16Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
1
median 3Declared in manifest
Active users
6
median 14vs category median
Findings breakdown
Automated security signal · 16 distinct issues across 6 severities
16
distinct issues
detected
detected
Critical00%
High00%
Needs Review00%
Medium1594%
Low16%
Info00%
Permissions requested
1 permission declared
No risky permissions
1 permission requested — none are flagged as risky.
Medium
Store local data
Can save data locally in the browser for persistence
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Scan performed by extenshi.io · Aug 17, 2026
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