SECURITY REPORT · EXTENSHI SCAN
Simple EPUB Reader
Firefox extension·by yizi
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
Simple EPUB Reader's safety score vs every other extension we've scanned
Globally
50%of extensions carry more risk
Riskier ←→ Safer
Ranked against 397,380 extensions
In Other
22%of other extensions carry more risk
Riskier ←→ Safer
Ranked against 28,696 other extensions
Findings
12
median 3Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
0
median 3Declared in manifest
Active users
1
median 2vs category median
Findings breakdown
Automated security signal · 12 distinct issues across 6 severities
12
distinct issues
detected
detected
Critical00%
High00%
Needs Review00%
Medium1192%
Low18%
Info00%
Permissions requested
0 permissions declared
No permissions requested
This extension doesn't request any browser permissions. That's unusually clean.
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Scan performed by extenshi.io · Aug 30, 2026
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