SECURITY REPORT · EXTENSHI SCAN
MCP Browser Kit M3
Chrome extension
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
MCP Browser Kit M3's safety score vs every other extension we've scanned
Globally
5%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Productivity
7%of productivity extensions carry more risk
Riskier ←→ Safer
Ranked against 177,133 productivity extensions
Findings
220
median 16Lower is safer
Critical findings
2
median 0Severity = Critical
Permissions
2
median 3Declared in manifest
Active users
3
median 14vs category median
Findings breakdown
Automated security signal · 220 distinct issues across 6 severities
220
distinct issues
detected
detected
Critical21%
High42%
Needs Review00%
Medium2511%
Low18986%
Info00%
Permissions requested
1 risky permission of 2 total
1 high-risk permission require attention
This extension requests 2 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
High
View open tabs
Can see URLs and titles of all open tabs
Medium
Monitor navigation
Can observe and track tab navigation events and URL changes
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Scan performed by extenshi.io · Aug 19, 2026
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