SECURITY REPORT · EXTENSHI SCAN

ShieldNumber

Firefox extension·by Sustained Ventures

/ 100 SAFETY SCORE

RISKY

Several elevated signals. Read the findings before sharing this with your team.

Likely abandonedsafety score reduced by 30 points

No update in over 5 years

Why this matters

An unmaintained extension keeps whatever flaws it shipped with, and a listing with users but no owner is an attractive target to buy and repurpose.

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

ShieldNumber's safety score vs every other extension we've scanned

Globally

35%of extensions carry more risk

This extension

Riskier ←→ Safer

Ranked against 369,936 extensions

In Privacy & Security

28%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 · 18 distinct issues across 6 severities

distinct issues
detected

Critical00%

High16%

Needs Review00%

Medium1056%

Low422%

Info317%

Permissions requested

7 permissions declared

No risky permissions

7 permissions requested — none are flagged as risky.

Medium

Store local data

Can save data locally in the browser for persistence

Medium