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

tr-wp.com · firefox · v1.0

Risk Assessment

Analyzed
46.09
out of 100
MEDIUM

15 security findings detected across all analyzers

Firefox extension requesting 1 permission

Severity Breakdown

0
Critical
4
High
11
Medium
0
Low
0
Info

Finding Categories

4
Malware Signatures
1
Network
10
IoC Indicators

YARA Rules Matched

2 rules(4 hits)
postinstall network communication postinstall file download

Requested Permissions

1 permission
https://open.er-api.com/*
Low

Detailed Findings

5 total

YARA Rule Matches

2 rules

Indicators of Compromise

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

URLs
3
Domains
6
Strings
10

All Indicators · 10

Domain
detected Domain: signingca1.addons.mozilla.org

XIOC detected Domain: signingca1.addons.mozilla.org

extracted_from_files

URL
detected URL: https://open.er-api.com/*

XIOC detected URL: https://open.er-api.com/*

extracted_from_files

Hash
detected MD5 Hash: 680ece48caa27322749dc40f519acc82

XIOC detected MD5 Hash: 680ece48caa27322749dc40f519acc82

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: tc8d16b3ac6d10356d386b3ba81968e33.680ece48caa27322749dc40f519acc82.addons.mozilla.org

XIOC detected Domain: tc8d16b3ac6d10356d386b3ba81968e33.680ece48caa27322749dc40f519acc82.addons.mozilla.org

extracted_from_files

Domain
detected Domain: open.er-api.com

XIOC detected Domain: open.er-api.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://open.er-api.com/v6/latest/USD');

XIOC detected URL: https://open.er-api.com/v6/latest/USD');

extracted_from_files

Security Analysis Summary

Security Analysis Overview

This extension 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 46.09/100 (MEDIUM risk) based on 15 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: 4 finding(s)
  • Medium: 11 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 tr-wp.com on the Firefox Add-ons marketplace. The extension has approximately 5 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