Is "Claude Usage Tracker" on Firefox Add-ons Safe to Install?

AppForge · firefox · v1.0.0

Track your Claude.ai Pro or Max subscription usage directly from the toolbar — no need to open the settings page. Features: - Current session usage bar (5-hour window) - Weekly usage bar (7-day window) - Reset countdown with exact date and time - Works from any tab — claude.ai doesn't need to be open - No data stored or sent anywhere Simply log in to claude.ai once, then click the extension icon anytime to see your live usage limits. Supports Claude Pro, Max $100, and Max $200 plans.

Risk Assessment

Analyzed
84.9
out of 100
HIGH

26 security findings detected across all analyzers

Firefox extension requesting 3 permissions

Severity Breakdown

0
Critical
8
High
18
Medium
0
Low
0
Info

Finding Categories

8
Malware Signatures
2
Network
15
IoC Indicators

YARA Rules Matched

5 rules(8 hits)
postinstall network communication postinstall file download SQLInjection postinstall file manipulation postinstall system command

Requested Permissions

3 permissions
tabs
Medium
storage
Low
https://claude.ai/*
Low

About This Extension

Track your <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/cf6f55cbba6731f7030d49478c86cb1b6c503e9ea8cb3f1a019bd0e646726ebe/http%3A//Claude.ai" rel="nofollow">Claude.ai</a> Pro or Max subscription usage directly from the toolbar — no need to open the settings page. Features: - Current session usage bar (5-hour window) - Weekly usage bar (7-day window) - Reset countdown with exact date and time - Works from any tab — <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/749f55679c25c240feed4c33d337c9a6fd364a96bdf82dafdc769bc8883d8fcd/http%3A//claude.ai" rel="nofollow">claude.ai</a> doesn't need to be open - No data stored or sent anywhere Simply log in to <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/749f55679c25c240feed4c33d337c9a6fd364a96bdf82dafdc769bc8883d8fcd/http%3A//claude.ai" rel="nofollow">claude.ai</a> once, then click the extension icon anytime to see your live usage limits. Supports Claude Pro, Max $100, and Max $200 plans.

Detailed Findings

11 total

YARA Rule Matches

5 rules

Indicators of Compromise

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

URLs
5
Domains
8
Strings
15

All Indicators · 15

Domain
detected Domain: signingca1.addons.mozilla.org

XIOC detected Domain: signingca1.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

URL
detected URL: https://claude.ai/api/organizations',

XIOC detected URL: https://claude.ai/api/organizations',

extracted_from_files

URL
detected URL: https://claude.ai/api/organizations/$

XIOC detected URL: https://claude.ai/api/organizations/$

extracted_from_files

URL
detected URL: https://claude.ai/*

XIOC detected URL: https://claude.ai/*

extracted_from_files

URL
detected URL: https://claude.ai/login'

XIOC detected URL: https://claude.ai/login'

extracted_from_files

Hash
detected MD5 Hash: 47b1530d063686092c728f32e252e265

XIOC detected MD5 Hash: 47b1530d063686092c728f32e252e265

extracted_from_files

Domain
detected Domain: mozilla.com

XIOC detected Domain: mozilla.com

extracted_from_files

Domain
detected Domain: content-signature.mozilla.org

XIOC detected Domain: content-signature.mozilla.org

extracted_from_files

Domain
detected Domain: appforge.com

XIOC detected Domain: appforge.com

extracted_from_files

Domain
detected Domain: t0219b3c95dadd278550828ea89f4ff63.47b1530d063686092c728f32e252e265.addons.mozilla.org

XIOC detected Domain: t0219b3c95dadd278550828ea89f4ff63.47b1530d063686092c728f32e252e265.addons.mozilla.org

extracted_from_files

Domain
detected Domain: claude.ai

XIOC detected Domain: claude.ai

extracted_from_files

Domain
detected Domain: org.id

XIOC detected Domain: org.id

extracted_from_files

Domain
detected Domain: date.now

XIOC detected Domain: date.now

extracted_from_files

Security Analysis Summary

Security Analysis Overview

Claude Usage Tracker is a Firefox Add-ons extension published by AppForge. Version 1.0.0 has been analyzed by the Risky Plugins security platform, receiving a risk score of 84.9/100 (HIGH risk) based on 26 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: 8 finding(s)
  • Medium: 18 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

Claude Usage Tracker is published by AppForge on the Firefox Add-ons marketplace. The extension has approximately 34 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

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