Is Duoblock Origin safe to use?

Duoblock Origin has a security risk score of 61.28/100 (MEDIUM risk). Our security analysis detected 65 findings. Review the detailed security assessment below to understand the specific risks before installation.

What are the security risks of Duoblock Origin?

Based on our automated security analysis, Duoblock Origin presents medium 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 "Duoblock Origin" on Firefox Add-ons Safe to Install?

Name: Duoblock Origin
Availability: InStock
Rating: 5 (1 reviews)
Author: apersongithub

apersongithub · firefox · v1.1

Source: https://github.com/apersongithub/Duoblock-Origin Note: This only removes ads....even though the upsell ads for the practice hub are gone, you still cannot access it and will be redirected to the homepage. ❗Please rate the extension especially if it works for you❗ *Not affiliated with Duolingo

Risk Assessment

Analyzed

61.28

out of 100

MEDIUM

65 security findings detected across all analyzers

Firefox extension requesting 5 permissions

Severity Breakdown

Critical

High

Medium

Low

Info

Finding Categories

Malware Signatures

Obfuscation

Network

IoC Indicators

YARA Rules Matched

6 rules(17 hits)

postinstall file download postinstall file manipulation postinstall network communication postinstall persistence mechanism postinstall system command postinstall obfuscation

Requested Permissions

5 permissions

tabs

Medium

storage

Low

https://*.duolingo.com/*

Low

https://*.duolingo.cn/*

Low

https://raw.githubusercontent.com/*

Low

About This Extension

Source: <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/ff417c18a446d1f35c74529988f84bd422525274373389c222c758f5b703437f/https%3A//github.com/apersongithub/Duoblock-Origin" rel="nofollow">https://github.com/apersongithub/Duoblock-Origin</a> Note: This only removes ads....even though the upsell ads for the practice hub are gone, you still cannot access it and will be redirected to the homepage. ❗Please rate the extension especially if it works for you❗ *Not affiliated with Duolingo

Detailed Findings

20 total

YARA Rule Matches

6 rules

Indicators of Compromise

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

URLs

IP Addresses

Domains

Strings

All Indicators · 41

Domain

detected Domain: duolingo.com

XIOC detected Domain: duolingo.com

extracted_from_files

URL

detected URL: https://raw.githubusercontent.com/apersongithub/Duoblock-Origin/refs/heads/main/extension-version.json');

XIOC detected URL: https://raw.githubusercontent.com/apersongithub/Duoblock-Origin/refs/heads/main/extension-version.json');

extracted_from_files

Hash

detected MD5 Hash: 3465d9fac15dcfa01414bafbefb7fedd

XIOC detected MD5 Hash: 3465d9fac15dcfa01414bafbefb7fedd

extracted_from_files

URL

detected URL: http://www.w3.org/2000/svg

XIOC detected URL: http://www.w3.org/2000/svg

extracted_from_files

URL

detected URL: https://*.duolingo.cn/*

XIOC detected URL: https://*.duolingo.cn/*

extracted_from_files

URL

detected URL: https://raw.githubusercontent.com/*

XIOC detected URL: https://raw.githubusercontent.com/*

extracted_from_files

URL

detected URL: https://html-preview.github.io/?url=https://raw.githubusercontent.com/apersongithub/Duoblock-Origin/refs/heads/main/extras/donations.html

XIOC detected URL: https://html-preview.github.io/?url=https://raw.githubusercontent.com/apersongithub/Duoblock-Origin/refs/heads/main/extras/donations.html

extracted_from_files

URL

detected URL: https://github.com/apersongithub/Duoblock-Origin

XIOC detected URL: https://github.com/apersongithub/Duoblock-Origin

extracted_from_files

URL

detected URL: https://github.com/apersongithub/Duoblock-Origin/issues

XIOC detected URL: https://github.com/apersongithub/Duoblock-Origin/issues

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

Domain

detected Domain: raw.githubusercontent.com

XIOC detected Domain: raw.githubusercontent.com

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

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: html-preview.github.io

XIOC detected Domain: html-preview.github.io

extracted_from_files

Domain

detected Domain: github.com

XIOC detected Domain: github.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: https://*.duolingo.com/*

XIOC detected URL: https://*.duolingo.com/*

extracted_from_files

URL

detected URL: https://raw.githubusercontent.com/apersongithub/Duoblock-Origin/refs/heads/main/extension/main/chrome/images/icon-128.png

XIOC detected URL: https://raw.githubusercontent.com/apersongithub/Duoblock-Origin/refs/heads/main/extension/main/chrome/images/icon-128.png

extracted_from_files

Domain

detected Domain: questslink.nextelementsibling.id

XIOC detected Domain: questslink.nextelementsibling.id

extracted_from_files

Domain

detected Domain: cloneanchor.id

XIOC detected Domain: cloneanchor.id

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

URL

detected Domain: purl.org

XIOC detected Domain: purl.org

extracted_from_files

Domain

detected Domain: v.py

XIOC detected Domain: v.py

extracted_from_files

Domain

detected Domain: xmlhttprequest.prototype.open

XIOC detected Domain: xmlhttprequest.prototype.open

extracted_from_files

Domain

detected Domain: duolingo.cn

XIOC detected Domain: duolingo.cn

extracted_from_files

Domain

detected Domain: t.id

XIOC detected Domain: t.id

extracted_from_files

Domain

detected Domain: tab.id

XIOC detected Domain: tab.id

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

Domain

detected Domain: array.prototype.indexof.call

XIOC detected Domain: array.prototype.indexof.call

extracted_from_files

Domain

detected Domain: nodefilter.show

XIOC detected Domain: nodefilter.show

extracted_from_files

Domain

detected Domain: cloneparent.id

XIOC detected Domain: cloneparent.id

extracted_from_files

detected IP: ::e

XIOC detected IP: ::e

extracted_from_files

Domain

detected Domain: signingca1.addons.mozilla.org

XIOC detected Domain: signingca1.addons.mozilla.org

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: tef279b8dc9438f64a3c57cbf6295358c.3465d9fac15dcfa01414bafbefb7fedd.addons.mozilla.org

XIOC detected Domain: tef279b8dc9438f64a3c57cbf6295358c.3465d9fac15dcfa01414bafbefb7fedd.addons.mozilla.org

extracted_from_files

detected IP: ::

XIOC detected IP: ::

extracted_from_files

Security Analysis Summary

Security Analysis Overview

Duoblock Origin is a Firefox Add-ons extension published by apersongithub. Version 1.1 has been analyzed by the Risky Plugins security platform, receiving a risk score of 61.28/100 (MEDIUM risk) based on 65 security findings.

Risk Assessment

This extension presents high security risk. Significant concerns were identified during analysis. It is not recommended for use in sensitive or production environments without thorough review.

Findings Breakdown

High: 18 finding(s)
Medium: 47 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

Duoblock Origin is published by apersongithub on the Firefox Add-ons marketplace. The extension has approximately 11 users.

Recommendation

This extension is not recommended for installation without thorough manual review. Consider alternatives with lower risk scores, or contact the developer to address the identified security concerns.

Source Code Viewer

Source Code Not Available

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

Frequently Asked Questions

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Is "Duoblock Origin" on Firefox Add-ons Safe to Install?

Risk Assessment

Severity Breakdown

Finding Categories

YARA Rules Matched

Requested Permissions

About This Extension

Detailed Findings

OBFUSCATION-SUSPICIOUS_EXTERNAL_IMPORT-popup.js-0

NET-FETCH-popup.js-18

MANIFEST-SENSITIVE-PERM-TABS

YARA Rule Matches

postinstall file download

postinstall file manipulation

postinstall network communication

postinstall persistence mechanism

postinstall system command

postinstall obfuscation

Indicators of Compromise

All Indicators · 41

Security Analysis Summary

Security Analysis Overview

Risk Assessment

Findings Breakdown

What Was Analyzed

Developer Information

Recommendation

Frequently Asked Questions

Similar Extensions

Speech Recognition Polyfill (STT)

Duolingo Max

Duolingo Max

SN Utils

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IntelliBuddies Web Automation