SECURITY REPORT · EXTENSHI SCAN
myBook
Firefox extension·by Viết Ngọc
42
/ 100 SAFETY SCORE
RISKY
Several elevated signals. Read the findings before sharing this with your team.
Likely abandonedsafety score reduced by 30 points
- No update in over 5 years
- Bundles libraries with known vulnerabilities and no fix in sight
Why this matters
An unmaintained extension keeps whatever flaws it shipped with, and a listing with users but no owner is an attractive target to buy and repurpose.
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
myBook's safety score vs every other extension we've scanned
Globally
17%of extensions carry more risk
Riskier ←→ Safer
Ranked against 403,022 extensions
In Language Support
10%of language support extensions carry more risk
Riskier ←→ Safer
Ranked against 4,526 language support extensions
Findings
17
median 5Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
0
median 3Declared in manifest
Active users
71
median 3vs category median
Findings breakdown
Automated security signal · 17 distinct issues across 6 severities
17
distinct issues
detected
detected
Scanners reported 19 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical16%
High424%
Needs Review00%
Medium1059%
Low16%
Info16%
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 18, 2026
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