SECURITY REPORT · EXTENSHI SCAN
YouTube Zen Mode
Firefox extension·by Phoenix
78
/ 100 SAFETY SCORE
CAUTION
Mostly fine, but a few things worth reviewing before you install.
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 Zen Mode's safety score vs every other extension we've scanned
Globally
34%of extensions carry more risk
Riskier ←→ Safer
Ranked against 397,522 extensions
In Social & Communication
17%of social & communication extensions carry more risk
Riskier ←→ Safer
Ranked against 13,634 social & communication extensions
Findings
16
median 5Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
5
median 3Declared in manifest
Active users
14
median 3vs category median
Findings breakdown
Automated security signal · 16 distinct issues across 6 severities
16
distinct issues
detected
detected
Critical00%
High213%
Needs Review00%
Medium1275%
Low213%
Info00%
Permissions requested
2 risky permissions of 5 total
2 high-risk permissions require attention
This extension requests 5 permissions in total. 2 of them grant broad capabilities that are worth a careful look.
High
View open tabs
Can see URLs and titles of all open tabs
High
Observe web requests
Can monitor all network requests made by the browser
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Monitor navigation
Can observe and track tab navigation events and URL changes
Info
https://www.youtube.com/*
No additional information available.
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Scan performed by extenshi.io · Aug 25, 2026
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