Is One Click W3C Markup Validation safe to use?

One Click W3C Markup Validation has a security risk score of 27.34/100 (LOW risk). Our security analysis detected 19 findings. Review the detailed security assessment below to understand the specific risks before installation.

What are the security risks of One Click W3C Markup Validation?

Based on our automated security analysis, One Click W3C Markup Validation 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 "One Click W3C Markup Validation" on Firefox Add-ons Safe to Install?

Name: One Click W3C Markup Validation
Availability: InStock
Author: tr-wp.com

tr-wp.com · firefox · v1.0

To use the plugin, just click on the plugin icon while the website is open.

Risk Assessment

Analyzed

27.34

out of 100

LOW

19 security findings detected across all analyzers

Firefox extension requesting 1 permission

Severity Breakdown

Critical

High

Medium

Low

Info

Finding Categories

Malware Signatures

IoC Indicators

YARA Rules Matched

1 rule

postinstall network communication

Requested Permissions

1 permission

activeTab

Medium

About This Extension

To use the plugin, just click on the plugin icon while the website is open.

Detailed Findings

1 total

YARA Rule Matches

1 rule

Indicators of Compromise

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

URLs

Domains

Strings

All Indicators · 18

Domain

detected Domain: signingca1.addons.mozilla.org

XIOC detected Domain: signingca1.addons.mozilla.org

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/photoshop/1.0/

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

extracted_from_files

Hash

detected MD5 Hash: 12bf34d680ff7f9f5c385334a9ec8e04

XIOC detected MD5 Hash: 12bf34d680ff7f9f5c385334a9ec8e04

extracted_from_files

URL

detected Domain: purl.org

XIOC detected Domain: purl.org

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: https://validator.w3.org/nu/?doc=

XIOC detected URL: https://validator.w3.org/nu/?doc=

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://ns.adobe.com/xap/1.0/

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

extracted_from_files

URL

detected URL: http://ns.adobe.com/xap/1.0/mm/

XIOC detected URL: http://ns.adobe.com/xap/1.0/mm/

extracted_from_files

URL

detected URL: http://ns.adobe.com/xap/1.0/sType/ResourceEvent#

XIOC detected URL: http://ns.adobe.com/xap/1.0/sType/ResourceEvent#

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: t27f1d91be73d8b9ab45a198c1375ebd7.12bf34d680ff7f9f5c385334a9ec8e04.addons.mozilla.org

XIOC detected Domain: t27f1d91be73d8b9ab45a198c1375ebd7.12bf34d680ff7f9f5c385334a9ec8e04.addons.mozilla.org

extracted_from_files

Domain

detected Domain: validator.w3.org

XIOC detected Domain: validator.w3.org

extracted_from_files

Domain

detected Domain: www.w3.org

XIOC detected Domain: www.w3.org

extracted_from_files

Domain

detected Domain: ns.adobe.com

XIOC detected Domain: ns.adobe.com

extracted_from_files

Security Analysis Summary

Security Analysis Overview

One Click W3C Markup Validation is a Firefox Add-ons extension published by tr-wp.com. Version 1.0 has been analyzed by the Risky Plugins security platform, receiving a risk score of 27.34/100 (LOW risk) based on 19 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

High: 1 finding(s)
Medium: 18 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

One Click W3C Markup Validation is published by tr-wp.com on the Firefox Add-ons marketplace. The extension has approximately 24 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.