Is A Non-subscriber's Tool safe to use?

A Non-subscriber's Tool has a security risk score of 22.7/100 (LOW risk). Our security analysis detected 17 findings. Review the detailed security assessment below to understand the specific risks before installation.

What are the security risks of A Non-subscriber's Tool?

Based on our automated security analysis, A Non-subscriber's Tool presents low risk level. The extension is analyzed for malware patterns, secret exposure, network communications, permissions, and supply chain vulnerabilities.

How is the security score calculated?

Risky Plugins calculates security scores using weighted categories: severity of findings (25 points max), malware detections (35 points), secret exposure (28 points), network communications (10 points), and obfuscation (10 points). Scores range from 0-100, with higher scores indicating greater risk.

What does CRITICAL, HIGH, MEDIUM, LOW, MINIMAL risk mean?

CRITICAL (80-100): Severe security issues like malware. HIGH (60-79): Significant vulnerabilities. MEDIUM (40-59): Moderate security concerns. LOW (20-39): Minor issues. MINIMAL (0-19): Very low risk. Always review findings before installing any extension.

Is "A Non-subscriber's Tool" on Firefox Add-ons Safe to Install?

Name: A Non-subscriber's Tool
Availability: InStock
Rating: 5 (1 reviews)
Author: cywu

cywu · firefox · v0.3

Install and it should just work.

Risk Assessment

Analyzed

22.7

out of 100

LOW

17 security findings detected across all analyzers

Firefox extension requesting 1 permission

Severity Breakdown

Critical

High

Medium

Low

Info

Finding Categories

IoC Indicators

Requested Permissions

1 permission

*://*.substack.com/*

Low

About This Extension

Install and it should just work.

No Findings

All security checks passed

Indicators of Compromise

Network indicators, suspicious strings, and potential IoCs extracted during analysis

URLs

IP Addresses

Domains

Strings

All Indicators · 17

Domain

detected Domain: signingca1.addons.mozilla.org

XIOC detected Domain: signingca1.addons.mozilla.org

extracted_from_files

URL

detected URL: http://iptc.org/std/Iptc4xmpExt/2008-02-29/

XIOC detected URL: http://iptc.org/std/Iptc4xmpExt/2008-02-29/

extracted_from_files

Hash

detected MD5 Hash: e0a4b25af2c1cb0dd4799d6f845199db

XIOC detected MD5 Hash: e0a4b25af2c1cb0dd4799d6f845199db

extracted_from_files

Domain

detected Domain: ns.adobe.com

XIOC detected Domain: ns.adobe.com

extracted_from_files

detected Domain: iptc.org

XIOC detected Domain: iptc.org

extracted_from_files

Domain

detected Domain: substack.com

XIOC detected Domain: substack.com

extracted_from_files

URL

detected URL: http://addons.mozilla.org/ca/crl.pem0N

XIOC detected URL: http://addons.mozilla.org/ca/crl.pem0N

extracted_from_files

URL

detected URL: http://www.w3.org/1999/02/22-rdf-syntax-ns#

XIOC detected URL: http://www.w3.org/1999/02/22-rdf-syntax-ns#

extracted_from_files

URL

detected URL: http://purl.org/dc/elements/1.1/

XIOC detected URL: http://purl.org/dc/elements/1.1/

extracted_from_files

URL

detected URL: http://ns.adobe.com/tiff/1.0/

XIOC detected URL: http://ns.adobe.com/tiff/1.0/

extracted_from_files

Domain

detected Domain: mozilla.com

XIOC detected Domain: mozilla.com

extracted_from_files

Domain

detected Domain: addons.mozilla.org

XIOC detected Domain: addons.mozilla.org

extracted_from_files

Domain

detected Domain: content-signature.mozilla.org

XIOC detected Domain: content-signature.mozilla.org

extracted_from_files

Domain

detected Domain: t8d3ef59cd749aac1d46807713d442404.e0a4b25af2c1cb0dd4799d6f845199db.addons.mozilla.org

XIOC detected Domain: t8d3ef59cd749aac1d46807713d442404.e0a4b25af2c1cb0dd4799d6f845199db.addons.mozilla.org

extracted_from_files

Domain

detected Domain: b.click

XIOC detected Domain: b.click

extracted_from_files

Domain

detected Domain: www.w3.org

XIOC detected Domain: www.w3.org

extracted_from_files

URL

detected Domain: purl.org

XIOC detected Domain: purl.org

extracted_from_files

Security Analysis Summary

Security Analysis Overview

A Non-subscriber's Tool is a Firefox Add-ons extension published by cywu. Version 0.3 has been analyzed by the Risky Plugins security platform, receiving a risk score of 22.7/100 (LOW risk) based on 17 security findings.

Risk Assessment

This extension presents low security risk. Some minor findings were detected, but nothing that would prevent typical usage. Reviewing the detailed findings below is recommended before use in sensitive environments.

Findings Breakdown

Medium: 17 finding(s)

What Was Analyzed

The security assessment covers multiple analysis categories:

Malware Detection: YARA rule matching against 2,400+ malware signatures
Secret Detection: Scanning for exposed API keys, tokens, and credentials
Static Analysis: Code-level security analysis for common vulnerability patterns
Network Analysis: Detection of suspicious network communications and endpoints
Obfuscation Detection: Identification of code obfuscation techniques

Developer Information

A Non-subscriber's Tool is published by cywu on the Firefox Add-ons marketplace. The extension has approximately 36 users.

Recommendation

Based on the automated security analysis, this extension appears safe for general use. As with any extension, users should review the requested permissions before installation.

Source Code Viewer

Source Code Not Available

Source code is not available for this version of the extension.