Is "YouTube via iFrame (ad-free)" on Firefox Add-ons Safe to Install?

Nostrum · firefox · v1.0.1

This module allows you to replace YouTube videos with iframes. Ads are blocked on iframes due to cross-origin resource sharing (CORS) restrictions. This module allows you to enjoy YouTube videos using iframes instead of the original videos. If you encounter any problems, please uninstall this module!

Risk Assessment

Analyzed
33.96
out of 100
LOW

20 security findings detected across all analyzers

Firefox extension requesting 3 permissions

Severity Breakdown

0
Critical
3
High
17
Medium
0
Low
0
Info

Finding Categories

3
Malware Signatures
17
IoC Indicators

YARA Rules Matched

3 rules
LocalStorageShouldNotBeUsed postinstall file manipulation postinstall crypto operations

Requested Permissions

3 permissions
*://*.youtube.com/*
Low
*://youtube.com/*
Low
*://youtu.be/*
Low

About This Extension

This module allows you to replace YouTube videos with iframes. Ads are blocked on iframes due to cross-origin resource sharing (CORS) restrictions. This module allows you to enjoy YouTube videos using iframes instead of the original videos. If you encounter any problems, please uninstall this module!

Detailed Findings

3 total

YARA Rule Matches

3 rules

Indicators of Compromise

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

URLs
3
Domains
12
Strings
17

All Indicators · 17

Domain
detected Domain: signingca1.addons.mozilla.org

XIOC detected Domain: signingca1.addons.mozilla.org

extracted_from_files

URL
detected URL: https://www.youtube.com/embed/$

XIOC detected URL: https://www.youtube.com/embed/$

extracted_from_files

Hash
detected MD5 Hash: 47faac49c2d6338f8bfc72249f3e9ed2

XIOC detected MD5 Hash: 47faac49c2d6338f8bfc72249f3e9ed2

extracted_from_files

Domain
detected Domain: opopup.id

XIOC detected Domain: opopup.id

extracted_from_files

Domain
detected Domain: ocommandbutton.id

XIOC detected Domain: ocommandbutton.id

extracted_from_files

Domain
detected Domain: youtube.com

XIOC detected Domain: youtube.com

extracted_from_files

Domain
detected Domain: youtu.be

XIOC detected Domain: youtu.be

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://www.youtube-nocookie.com/embed/$

XIOC detected URL: https://www.youtube-nocookie.com/embed/$

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: t6b3dbe51d4b5515d48683802f9f907df.47faac49c2d6338f8bfc72249f3e9ed2.addons.mozilla.org

XIOC detected Domain: t6b3dbe51d4b5515d48683802f9f907df.47faac49c2d6338f8bfc72249f3e9ed2.addons.mozilla.org

extracted_from_files

Domain
detected Domain: www.youtube-nocookie.com

XIOC detected Domain: www.youtube-nocookie.com

extracted_from_files

Domain
detected Domain: www.youtube.com

XIOC detected Domain: www.youtube.com

extracted_from_files

Domain
detected Domain: window.location.search

XIOC detected Domain: window.location.search

extracted_from_files

Security Analysis Summary

Security Analysis Overview

YouTube via iFrame (ad-free) is a Firefox Add-ons extension published by Nostrum. Version 1.0.1 has been analyzed by the Risky Plugins security platform, receiving a risk score of 33.96/100 (LOW risk) based on 20 security findings.

Risk Assessment

This extension presents low security risk. Some minor findings were detected, but nothing that would prevent typical usage. Reviewing the detailed findings below is recommended before use in sensitive environments.

Findings Breakdown

  • High: 3 finding(s)
  • Medium: 17 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

YouTube via iFrame (ad-free) is published by Nostrum on the Firefox Add-ons marketplace. The extension has approximately 51 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