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

Fabio Rodrigues · firefox · v3.0.2

Risk Assessment

Analyzed
100
out of 100
CRITICAL

112 security findings detected across all analyzers

Firefox extension requesting 9 permissions

Severity Breakdown

0
Critical
92
High
20
Medium
0
Low
0
Info

Finding Categories

92
Malware Signatures
19
Network

YARA Rules Matched

11 rules(92 hits)
postinstall obfuscation postinstall file manipulation postinstall file download postinstall network communication postinstall system command NoUseWeakRandom credential steam data postinstall persistence mechanism postinstall crypto operations postinstall environment access LocalStorageShouldNotBeUsed

Requested Permissions

9 permissions
https://*/*
Dangerous
http://*/*
Dangerous
tabs
Medium
bookmarks
Medium
alarms
Low
storage
Low
unlimitedStorage
Low
contextMenus
Low
notifications
Low

Detailed Findings

112 total

YARA Rule Matches

11 rules

Security Analysis Summary

Security Analysis Overview

This extension is a Firefox Add-ons extension published by Fabio Rodrigues. Version 3.0.2 has been analyzed by the Risky Plugins security platform, receiving a risk score of 100/100 (CRITICAL risk) based on 112 security findings.

Risk Assessment

This extension presents critical security risk. Severe issues were detected, potentially including malware indicators, exposed secrets, or dangerous behaviors. Installation is strongly discouraged until these issues are addressed.

Findings Breakdown

  • High: 92 finding(s)
  • Medium: 20 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 Fabio Rodrigues on the Firefox Add-ons marketplace. The extension has approximately 4 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.

Frequently Asked Questions