SECURITY REPORT · EXTENSHI SCAN
LeekCF Rating
Firefox extension·by Leeking
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
LeekCF Rating's safety score vs every other extension we've scanned
Globally
69%of extensions carry more risk
Riskier ←→ Safer
Ranked against 347,108 extensions
In Appearance
31%of appearance extensions carry more risk
Riskier ←→ Safer
Ranked against 15,709 appearance extensions
Findings
5
median 3Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
2
median 2Declared in manifest
Active users
23
median 4vs category median
Findings breakdown
Automated security signal · 5 distinct issues across 6 severities
5
distinct issues
detected
detected
Critical00%
High00%
Needs Review00%
Medium480%
Low120%
Info00%
Permissions requested
2 permissions declared
No risky permissions
2 permissions requested — none are flagged as risky.
Info
*://codeforces.com/problemset/problem/*/*
No additional information available.
Info
*://codeforces.com/contest/*/problem/*
No additional information available.
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Scan performed by extenshi.io · Aug 15, 2026
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