SECURITY REPORT · EXTENSHI SCAN
YouTube Style - Themes for YouTube
Firefox extension·by D1yLack
0
/ 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
YouTube Style - Themes for YouTube's safety score vs every other extension we've scanned
Globally
44%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Appearance
16%of appearance extensions carry more risk
Riskier ←→ Safer
Ranked against 17,915 appearance extensions
Findings
15
median 3Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
3
median 2Declared in manifest
Active users
1
median 3vs category median
Findings breakdown
Automated security signal · 15 distinct issues across 6 severities
15
distinct issues
detected
detected
Critical00%
High00%
Needs Review00%
Medium1280%
Low320%
Info00%
Permissions requested
1 risky permission of 3 total
1 critical permission require attention
This extension requests 3 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
Critical
Access to all websites
Can read and modify content on every website you visit
Medium
Store local data
Can save data locally in the browser for persistence
Info
https://*.youtube.com/*
No additional information available.
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Scan performed by extenshi.io · Aug 25, 2026
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