SECURITY REPORT · EXTENSHI SCAN
Learn Helper
Firefox extension·by Harry Chen
80
/ 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
Learn Helper's safety score vs every other extension we've scanned
Globally
29%of extensions carry more risk
Riskier ←→ Safer
Ranked against 415,885 extensions
In Other
15%of other extensions carry more risk
Riskier ←→ Safer
Ranked against 28,831 other extensions
Findings
34
median 6Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
3
median 3Declared in manifest
Active users
52
median 2vs category median
Findings breakdown
Automated security signal · 34 distinct issues across 6 severities
34
distinct issues
detected
detected
Critical00%
High618%
Needs Review00%
Medium1647%
Low618%
Info618%
Permissions requested
1 risky permission of 3 total
1 high-risk permission require attention
This extension requests 3 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
High
Manage downloads
Can initiate downloads and access your download history
Medium
Store local data
Can save data locally in the browser for persistence
Info
https://id.tsinghua.edu.cn/do/off/ui/auth/login/*
No additional information available.
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Scan performed by extenshi.io · Oct 22, 2026
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