SECURITY REPORT · EXTENSHI SCAN
Jan Browser MCP
Chrome extension·by Jan AI
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
Jan Browser MCP's safety score vs every other extension we've scanned
Globally
7%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Productivity
8%of productivity extensions carry more risk
Riskier ←→ Safer
Ranked against 177,133 productivity extensions
Findings
44
median 16Lower is safer
Critical findings
2
median 0Severity = Critical
Permissions
7
median 3Declared in manifest
Active users
10000
median 14vs category median
Findings breakdown
Automated security signal · 44 distinct issues across 6 severities
44
distinct issues
detected
detected
Scanners reported 45 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical25%
High37%
Needs Review00%
Medium2966%
Low818%
Info25%
Permissions requested
3 risky permissions of 7 total
1 critical permission require attention
This extension requests 7 permissions in total. 3 of them grant broad capabilities that are worth a careful look.
Critical
Browser debugger access
Can attach to tabs and inspect/modify all page data using Chrome DevTools protocol
High
View open tabs
Can see URLs and titles of all open tabs
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
Access current tab
Can temporarily access the content of the active tab when you click the extension
Low
Manage tab groups
Can create and manage tab groups
Info
windows
No additional information available.
Are you the author of Jan Browser MCP?
Claim this extension to respond to findings, add context, and earn a verified badge on extenshi.io.
Add the badge to your README
Show Jan Browser MCP's live security score on GitHub or in your docs
Scan performed by extenshi.io · Aug 18, 2026
Browser extensions made transparent.