SECURITY REPORT · EXTENSHI SCAN
MyBooks
Firefox extension·by Horky
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
MyBooks's safety score vs every other extension we've scanned
Globally
23%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Search Tools
8%of search tools extensions carry more risk
Riskier ←→ Safer
Ranked against 15,409 search tools extensions
Findings
13
median 4Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
4
median 3Declared in manifest
Active users
1
median 2vs category median
Findings breakdown
Automated security signal · 13 distinct issues across 6 severities
13
distinct issues
detected
detected
Critical18%
High00%
Needs Review00%
Medium1185%
Low18%
Info00%
Permissions requested
2 risky permissions of 4 total
1 critical permission require attention
This extension requests 4 permissions in total. 2 of them grant broad capabilities that are worth a careful look.
Critical
Access to all websites
Can read and modify content on every website you visit
High
Execute scripts in pages
Can inject and execute JavaScript code in web pages
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Add context menu items
Can add custom items to the right-click context menu
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Scan performed by extenshi.io · Aug 18, 2026
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