SECURITY REPORT · EXTENSHI SCAN

Thistle — Toolkit for Claude

Firefox extension·by Nabil Uddin

/ 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

Thistle — Toolkit for Claude's safety score vs every other extension we've scanned

Globally

47%of extensions carry more risk

This extension

Riskier ←→ Safer

Ranked against 369,936 extensions

In Privacy & Security

40%of privacy & security extensions carry more risk

This extension

Riskier ←→ Safer

Ranked against 11,537 privacy & security extensions

Findings

median 5Lower is safer

Critical findings

median 0Severity = Critical

Permissions

median 4Declared in manifest

Active users

median 3vs category median

Findings breakdown

Automated security signal · 11 distinct issues across 6 severities

distinct issues
detected

Critical00%

High19%

Needs Review00%

Medium982%

Low19%

Info00%

Permissions requested

1 risky permission of 8 total

1 high-risk permission require attention

This extension requests 8 permissions in total. 1 of them grant broad capabilities that are worth a careful look.

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