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SECURITY REPORT · EXTENSHI SCAN

Dual Subtitles for YouTube

Firefox extension·by prost
85
/ 100 SAFETY SCORE
EXCELLENT
Looks clean. No meaningful risks detected in this scan.

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

Dual Subtitles for YouTube's safety score vs every other extension we've scanned
Globally
54%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 403,277 extensions
In Social & Communication
31%of social & communication extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 13,675 social & communication extensions
Findings
11
median 5Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
3
median 3Declared in manifest
Active users
20
median 3vs category median

Findings breakdown

Automated security signal · 11 distinct issues across 6 severities
11
distinct issues
detected

Permissions requested

1 risky permission of 3 total
1 high-risk permission require attention
This extension requests 3 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
High
Execute scripts in pages

Can inject and execute JavaScript code in web pages

Medium
Store local data

Can save data locally in the browser for persistence

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

No additional information available.

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Scan performed by extenshi.io · Aug 4, 2026
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