SECURITY REPORT · EXTENSHI SCAN
Taprun — Local-First Browser MCP
Chrome extension·by LeonTing1010
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
Taprun — Local-First Browser MCP's safety score vs every other extension we've scanned
Globally
11%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Productivity
15%of productivity extensions carry more risk
Riskier ←→ Safer
Ranked against 177,133 productivity extensions
Findings
30
median 16Lower is safer
Critical findings
3
median 0Severity = Critical
Permissions
10
median 3Declared in manifest
Active users
14
median 14vs category median
Findings breakdown
Automated security signal · 30 distinct issues across 6 severities
30
distinct issues
detected
detected
Critical310%
High517%
Needs Review00%
Medium2067%
Low27%
Info00%
Permissions requested
5 risky permissions of 10 total
2 critical permissions require attention
This extension requests 10 permissions in total. 5 of them grant broad capabilities that are worth a careful look.
Critical
Communicate with desktop apps
Can exchange messages with applications installed on your computer
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
High
Access browser cookies
Can read and modify cookies, potentially accessing login sessions
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
Medium
Access bookmarks
Can read and modify your saved bookmarks
Medium
Store local data
Can save data locally in the browser for persistence
Low
Manage tab groups
Can create and manage tab groups
Low
Use side panel
Can display content in the browser side panel
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Scan performed by extenshi.io · Aug 17, 2026
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