SECURITY REPORT · EXTENSHI SCAN
Dual Subtitles & Shadowing for Netflix
Firefox extension·by Do5
89
/ 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 & Shadowing for Netflix's safety score vs every other extension we've scanned
Globally
57%of extensions carry more risk
Riskier ←→ Safer
Ranked against 421,529 extensions
In Language Support
52%of language support extensions carry more risk
Riskier ←→ Safer
Ranked against 4,594 language support extensions
Findings
28
median 10Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
3
median 3Declared in manifest
Active users
1503
median 3vs category median
Findings breakdown
Automated security signal · 28 distinct issues across 6 severities
28
distinct issues
detected
detected
Critical00%
High00%
Needs Review00%
Medium725%
Low2175%
Info00%
Permissions requested
3 permissions declared
No risky permissions
3 permissions requested — none are flagged as risky.
Medium
Store local data
Can save data locally in the browser for persistence
Info
https://www.netflix.com/*
No additional information available.
Info
https://echo.dooo5.com/checkout/*
No additional information available.
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Scan performed by extenshi.io · Oct 22, 2026
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