SECURITY REPORT · EXTENSHI SCAN
TL;DW
Firefox extension·by EL-MES
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
TL;DW's safety score vs every other extension we've scanned
Globally
33%of extensions carry more risk
Riskier ←→ Safer
Ranked against 409,539 extensions
In Language Support
22%of language support extensions carry more risk
Riskier ←→ Safer
Ranked against 4,529 language support extensions
Findings
38
median 5Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
24
median 3Declared in manifest
Active users
1
median 3vs category median
Findings breakdown
Automated security signal · 38 distinct issues across 6 severities
38
distinct issues
detected
detected
Critical00%
High00%
Needs Review00%
Medium1950%
Low1950%
Info00%
Permissions requested
24 permissions declared
No risky permissions
24 permissions requested — none are flagged as risky.
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Show notifications
Can display desktop notifications outside the browser
Medium
Monitor navigation
Can observe and track tab navigation events and URL changes
Info
https://www.youtube.com/watch*
No additional information available.
Info
https://www.youtube.com/shorts/*
No additional information available.
Info
https://www.youtube.com/embed/*
No additional information available.
Info
https://www.youtube.com/youtubei/*
No additional information available.
Info
https://www.youtube.com/api/timedtext*
No additional information available.
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Scan performed by extenshi.io · Aug 25, 2026
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