SECURITY REPORT · EXTENSHI SCAN
AC Analytics
Firefox extension·by Hayagrivan
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
AC Analytics's safety score vs every other extension we've scanned
Globally
16%of extensions carry more risk
Riskier ←→ Safer
Ranked against 120,331 extensions
In Alerts & Updates
5%of alerts & updates extensions carry more risk
Riskier ←→ Safer
Ranked against 19,859 alerts & updates extensions
Findings
94
median 3Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
5
median 3Declared in manifest
Active users
52
median 3vs category median
Findings breakdown
Automated security signal · 94 findings across 5 severities
94
findings
detected
detected
Critical11%
High22%
Medium8995%
Low22%
Info00%
Permissions requested
1 risky permission of 5 total
1 high-risk permission require attention
This extension requests 5 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
High
Access browser cookies
Can read and modify cookies, potentially accessing login sessions
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Show notifications
Can display desktop notifications outside the browser
Low
Schedule tasks
Can schedule periodic background tasks
Info
https://atcoder.jp/*
No additional information available.
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Scan performed by extenshi.io · Jun 25, 2026
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