Is "Extension" on Firefox Add-ons Safe to Install?

mkdev · firefox · v1.8

Risk Assessment

Analyzed
44.87
out of 100
MEDIUM

11 security findings detected across all analyzers

Firefox extension requesting 3 permissions

Severity Breakdown

0
Critical
2
High
9
Medium
0
Low
0
Info

Finding Categories

2
Malware Signatures
8
IoC Indicators

YARA Rules Matched

2 rules
AlertStatementsShouldNotBeUsed postinstall environment access

Requested Permissions

3 permissions
tabs
Medium
contextMenus
Low
storage
Low

Detailed Findings

3 total

YARA Rule Matches

2 rules

Indicators of Compromise

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

URLs
1
Domains
6
Strings
8

All Indicators · 8

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: t18b81048d494e6103ef85d9dff9f5f0a.814df38c31e0495644bff7302f3d7f6f.addons.mozilla.org

XIOC detected Domain: t18b81048d494e6103ef85d9dff9f5f0a.814df38c31e0495644bff7302f3d7f6f.addons.mozilla.org

extracted_from_files

Domain
detected Domain: learn.microsoft.com

XIOC detected Domain: learn.microsoft.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

Hash
detected MD5 Hash: 814df38c31e0495644bff7302f3d7f6f

XIOC detected MD5 Hash: 814df38c31e0495644bff7302f3d7f6f

extracted_from_files

Security Analysis Summary

Security Analysis Overview

This extension is a Firefox Add-ons extension published by mkdev. Version 1.8 has been analyzed by the Risky Plugins security platform, receiving a risk score of 44.87/100 (MEDIUM risk) based on 11 security findings.

Risk Assessment

This extension presents moderate security risk. Several findings were detected that may warrant attention. Users should carefully review the permissions and findings before installation.

Findings Breakdown

  • High: 2 finding(s)
  • Medium: 9 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

This extension is published by mkdev on the Firefox Add-ons marketplace. The extension has approximately 16 users.

Recommendation

Exercise caution with this extension. Review the detailed findings and ensure the requested permissions align with the extension's stated functionality before installation.

Frequently Asked Questions