Is "Responsive Viewer GT" on Firefox Add-ons Safe to Install?

Cecil Banks · firefox · v1.3

View and test websites in different screen resolutions and devices for responsive design.

Risk Assessment

Analyzed
45.05
out of 100
MEDIUM

12 security findings detected across all analyzers

Firefox extension requesting 2 permissions

Severity Breakdown

0
Critical
2
High
10
Medium
0
Low
0
Info

Finding Categories

2
Malware Signatures
9
IoC Indicators

YARA Rules Matched

1 rule(2 hits)
postinstall network communication

Requested Permissions

2 permissions
tabs
Medium
activeTab
Medium

About This Extension

View and test websites in different screen resolutions and devices for responsive design.

Detailed Findings

3 total

YARA Rule Matches

1 rule

Indicators of Compromise

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

URLs
1
IP Addresses
1
Domains
6
Strings
9

All Indicators · 9

IP
detected IP: ::9

XIOC detected IP: ::9

extracted_from_files

Hash
detected MD5 Hash: 5be5619e3961c4a13dd292b16b5dbd6d

XIOC detected MD5 Hash: 5be5619e3961c4a13dd292b16b5dbd6d

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: tebccadfac3f7527e74662f8852e75d86.5be5619e3961c4a13dd292b16b5dbd6d.addons.mozilla.org

XIOC detected Domain: tebccadfac3f7527e74662f8852e75d86.5be5619e3961c4a13dd292b16b5dbd6d.addons.mozilla.org

extracted_from_files

Domain
detected Domain: www.inkscape.org

XIOC detected Domain: www.inkscape.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

Security Analysis Summary

Security Analysis Overview

Responsive Viewer GT is a Firefox Add-ons extension published by Cecil Banks. Version 1.3 has been analyzed by the Risky Plugins security platform, receiving a risk score of 45.05/100 (MEDIUM risk) based on 12 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: 10 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

Responsive Viewer GT is published by Cecil Banks on the Firefox Add-ons marketplace. The extension has approximately 32 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