SECURITY REPORT · EXTENSHI SCAN
AtCoder Unit Test
Firefox extension·by YujiSoftware
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
AtCoder Unit Test's safety score vs every other extension we've scanned
Globally
20%of extensions carry more risk
Riskier ←→ Safer
Ranked against 120,711 extensions
In Web Development
11%of web development extensions carry more risk
Riskier ←→ Safer
Ranked against 10,188 web development extensions
Findings
14
median 4Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
3
median 3Declared in manifest
Active users
16
median 3vs category median
Findings breakdown
Automated security signal · 14 findings across 5 severities
14
findings
detected
detected
Critical17%
High00%
Medium1071%
Low17%
Info214%
Permissions requested
3 permissions declared
No risky permissions
3 permissions requested — none are flagged as risky.
Medium
Write to clipboard
Can place content onto your clipboard
Medium
Store local data
Can save data locally in the browser for persistence
Info
*://atcoder.jp/contests/*/tasks/*
No additional information available.
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Scan performed by extenshi.io · Jun 25, 2026
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