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SECURITY REPORT · EXTENSHI SCAN

ニコ生拡張機能 へもツール

Firefox extension·by Hemo
84
/ 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

ニコ生拡張機能 へもツール's safety score vs every other extension we've scanned
Globally
84.17%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked across every extension we scan
In its category
74.17%of its category extensions carry more risk
This extension
Riskier ←→ Safer
Ranked within its category
Findings
40
median 38Lower is safer
Risky permissions
0
median 1Critical + high perms
Total permissions
6
median 4All declared perms
Critical findings
0
median 2Severity = Critical

Findings breakdown

Automated security signal · 40 distinct issues across 6 severities
40
distinct issues
detected
Scanners reported 42 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

6 permissions declared
No risky permissions
6 permissions requested — none are flagged as risky.
Medium
Store local data

Can save data locally in the browser for persistence

Medium
Unlimited local storage

Can store large amounts of data locally without size limits

Low
Text-to-speech

Can use text-to-speech to read text aloud

Low
Block network requests (declarative)

Can block or redirect network requests using predefined rules without seeing content

Info
https://live.nicovideo.jp/*

No additional information available.

Info
https://ak.cdn.nimg.jp/*

No additional information available.

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Scan performed by extenshi.io · Jul 25, 2026· partial run (some scanners failed)
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