SECURITY REPORT · EXTENSHI SCAN
Add More Colors to Calendar
Firefox extension·by mdev
0
/ 100 SAFETY SCORE
RISKY
Several elevated signals. Read the findings before sharing this with your team.
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
Add More Colors to Calendar's safety score vs every other extension we've scanned
Globally
3%of extensions carry more risk
Riskier ←→ Safer
Ranked against 120,711 extensions
In Appearance
0%of appearance extensions carry more risk
Riskier ←→ Safer
Ranked against 12,579 appearance extensions
Findings
83
median 3Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
4
median 2Declared in manifest
Active users
7
median 4vs category median
Findings breakdown
Automated security signal · 83 findings across 5 severities
83
findings
detected
detected
Critical11%
High911%
Medium5769%
Low1012%
Info67%
Permissions requested
1 risky permission of 4 total
1 high-risk permission require attention
This extension requests 4 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
High
Execute scripts in pages
Can inject and execute JavaScript code in web pages
Medium
Access user identity
Can get OAuth2 tokens and access your Google account identity
Medium
Store local data
Can save data locally in the browser for persistence
Info
https://calendar.google.com/*
No additional information available.
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Scan performed by extenshi.io · Jun 25, 2026
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