extenshi.io
SECURITY REPORT · EXTENSHI SCAN

Porthole for Claude

Chrome extension
53
/ 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

Porthole for Claude's safety score vs every other extension we've scanned
Globally
3%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 397,380 extensions
In Productivity
3%of productivity extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 191,263 productivity extensions
Findings
208
median 16Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
12
median 3Declared in manifest
Active users
6
median 14vs category median

Findings breakdown

Automated security signal · 208 distinct issues across 6 severities
208
distinct issues
detected

Permissions requested

6 risky permissions of 12 total
6 high-risk permissions require attention
This extension requests 12 permissions in total. 6 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
Observe web requests

Can monitor all network requests made by the browser

High
Access browser cookies

Can read and modify cookies, potentially accessing login sessions

High
Access browsing history

Can read and modify your complete browsing history

High
Manage downloads

Can initiate downloads and access your download history

High
Delete browsing data

Can remove browsing history, cookies, cache, and other browsing data

Medium
Access current tab

Can temporarily access the content of the active tab when you click the extension

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Read clipboard

Can read text and data currently on your clipboard

Medium
Write to clipboard

Can place content onto your clipboard

Medium
Open downloaded files

Can open files that have been downloaded

Low
Use side panel

Can display content in the browser side panel

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Scan performed by extenshi.io · Aug 14, 2026
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