SECURITY REPORT · EXTENSHI SCAN
Holiday Calendar Overlay
Chrome extension
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
Holiday Calendar Overlay's safety score vs every other extension we've scanned
Globally
49%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Productivity
62%of productivity extensions carry more risk
Riskier ←→ Safer
Ranked against 177,133 productivity extensions
Findings
11
median 16Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
2
median 3Declared in manifest
Active users
20
median 14vs category median
Findings breakdown
Automated security signal · 11 distinct issues across 6 severities
11
distinct issues
detected
detected
Critical00%
High00%
Needs Review00%
Medium982%
Low218%
Info00%
Permissions requested
2 permissions declared
No risky permissions
2 permissions requested — none are flagged as risky.
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
Are you the author of Holiday Calendar Overlay?
Claim this extension to respond to findings, add context, and earn a verified badge on extenshi.io.
Add the badge to your README
Show Holiday Calendar Overlay's live security score on GitHub or in your docs
Scan performed by extenshi.io · Aug 18, 2026
Browser extensions made transparent.