extenshi.io
SECURITY REPORT · EXTENSHI SCAN

Classic YouTube Design [DISCONTINUED]

Firefox extension·by Cicero Interactive
51
/ 100 SAFETY SCORE
RISKY
Several elevated signals. Read the findings before sharing this with your team.

Likely abandonedsafety score reduced by 30 points

  • No update in over 5 years
Why this matters

An unmaintained extension keeps whatever flaws it shipped with, and a listing with users but no owner is an attractive target to buy and repurpose.

Automated analysis of publicly available code — not a professional security audit. It may produce false positives and does not prove an extension is unsafe or safe. Treat it as one signal among many. Disclaimer · Report an issue

How it ranks

Classic YouTube Design [DISCONTINUED]'s safety score vs every other extension we've scanned
Globally
42%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 397,240 extensions
In Photos Music Videos
23%of photos music videos extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 11,079 photos music videos extensions
Findings
7
median 4Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
4
median 3Declared in manifest
Active users
160
median 6vs category median

Findings breakdown

Automated security signal · 7 distinct issues across 6 severities
7
distinct issues
detected

Permissions requested

1 risky permission of 4 total
1 high-risk permission require attention
This extension requests 4 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
High
View open tabs

Can see URLs and titles of all open tabs

Medium
Store local data

Can save data locally in the browser for persistence

Info
https://www.youtube.com/

No additional information available.

Info
*://*.youtube.com/*

No additional information available.

Are you the author of Classic YouTube Design [DISCONTINUED]?

Claim this extension to respond to findings, add context, and earn a verified badge on extenshi.io.

Claim this extension

Add the badge to your README

Show Classic YouTube Design [DISCONTINUED]'s live security score on GitHub or in your docs
Extenshi security score badge preview
Markdown
[![Extenshi security score](https://catalog.extenshi.io/api/badge/106211)](https://catalog.extenshi.io/extensions/106211/security)
HTML
<a href="https://catalog.extenshi.io/extensions/106211/security"><img src="https://catalog.extenshi.io/api/badge/106211" alt="Extenshi security score" /></a>

The badge always shows the current score — it updates automatically after every scan.

Scan performed by extenshi.io · Aug 1, 2026
Browser extensions made transparent.