SECURITY REPORT · EXTENSHI SCAN
Mermaid Preview
Chrome extension·by TienChu
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
Mermaid Preview's safety score vs every other extension we've scanned
Globally
6%of extensions carry more risk
Riskier ←→ Safer
Ranked against 120,711 extensions
In Productivity
13%of productivity extensions carry more risk
Riskier ←→ Safer
Ranked against 25,973 productivity extensions
Findings
101
median 10Lower is safer
Critical findings
4
median 0Severity = Critical
Permissions
3
median 3Declared in manifest
Active users
190
median 23vs category median
Findings breakdown
Automated security signal · 101 findings across 5 severities
101
findings
detected
detected
Critical44%
High4343%
Medium5150%
Low11%
Info22%
Permissions requested
2 risky permissions of 3 total
2 high-risk permissions require attention
This extension requests 3 permissions in total. 2 of them grant broad capabilities that are worth a careful look.
High
View open tabs
Can see URLs and titles of all open tabs
High
Manage downloads
Can initiate downloads and access your download history
Medium
Store local data
Can save data locally in the browser for persistence
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Scan performed by extenshi.io · Jun 25, 2026
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