SECURITY REPORT · EXTENSHI SCAN

AntiFlatNiconico

Firefox extension·by MDN(無職童貞ニート)
97
/ 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

AntiFlatNiconico's safety score vs every other extension we've scanned
Globally
84%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 384,209 extensions
In Other
60%of other extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 28,024 other extensions
Findings
3
median 3Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
7
median 3Declared in manifest
Active users
0
median 2vs category median

Findings breakdown

Automated security signal · 3 distinct issues across 6 severities
3
distinct issues
detected

Permissions requested

7 permissions declared
No risky permissions
7 permissions requested — none are flagged as risky.
Info
*://*.nicovideo.jp/*

No additional information available.

Info
*://*.nicovideo.jp/watch*

No additional information available.

Info
*://*.nicovideo.jp/my*

No additional information available.

Info
*://*.nicovideo.jp/user*

No additional information available.

Info
*://*.nicovideo.jp/search*

No additional information available.

Info
*://*.nicovideo.jp/tag*

No additional information available.

Info
*://*.nicovideo.jp/garage*

No additional information available.

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Scan performed by extenshi.io · Sep 18, 2026
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