Is "Universal Dark Theme" on Firefox Add-ons Safe to Install?

Sidney T. Adams · firefox · v1.0.3

Apply a dark theme to all websites, delivering a consistent dark mode experience across the web. Enjoy a comfortable browsing experience, especially in low light conditions, without the need for individual website settings

Risk Assessment

Analyzed
19.01
out of 100
MINIMAL

8 security findings detected across all analyzers

Firefox extension requesting 2 permissions

Severity Breakdown

0
Critical
0
High
8
Medium
0
Low
0
Info

Finding Categories

8
IoC Indicators

Requested Permissions

2 permissions
http://*/*
Dangerous
activeTab
Medium

No Findings

All security checks passed

Indicators of Compromise

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

URLs
1
Domains
5
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: t4de7c839b3c6d0d3ccf7345bccdc40be.95ae58c7f09f76ad7378987ed4dc72df.addons.mozilla.org

XIOC detected Domain: t4de7c839b3c6d0d3ccf7345bccdc40be.95ae58c7f09f76ad7378987ed4dc72df.addons.mozilla.org

extracted_from_files

Other
detected Email: [email protected]

XIOC detected Email: [email protected]

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: 95ae58c7f09f76ad7378987ed4dc72df

XIOC detected MD5 Hash: 95ae58c7f09f76ad7378987ed4dc72df

extracted_from_files

Security Analysis Summary

Security Analysis Overview

Universal Dark Theme is a Firefox Add-ons extension published by Sidney T. Adams. Version 1.0.3 has been analyzed by the Risky Plugins security platform, receiving a risk score of 19.01/100 (MINIMAL risk) based on 8 security findings.

Risk Assessment

This extension presents minimal security concerns. The automated analysis found very few or no issues, suggesting it is suitable for general use.

Findings Breakdown

  • Medium: 8 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

Universal Dark Theme is published by Sidney T. Adams on the Firefox Add-ons marketplace. The extension has approximately 3 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.

Frequently Asked Questions