SECURITY REPORT · EXTENSHI SCAN
ニコニコ動画 あとで見る 視聴済みチェッカー
Chrome extension·by Yuuki Fukutomi
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
ニコニコ動画 あとで見る 視聴済みチェッカー's safety score vs every other extension we've scanned
Globally
76%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Productivity
88%of productivity extensions carry more risk
Riskier ←→ Safer
Ranked against 177,133 productivity extensions
Findings
4
median 16Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
2
median 3Declared in manifest
Active users
19
median 14vs category median
Findings breakdown
Automated security signal · 4 distinct issues across 6 severities
4
distinct issues
detected
detected
Critical00%
High00%
Needs Review00%
Medium250%
Low250%
Info00%
Permissions requested
1 risky permission of 2 total
1 high-risk permission require attention
This extension requests 2 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
High
Execute scripts in pages
Can inject and execute JavaScript code in web pages
Medium
Monitor navigation
Can observe and track tab navigation events and URL changes
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Scan performed by extenshi.io · Aug 10, 2026
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