SECURITY REPORT · EXTENSHI SCAN
YouTube MP3/MP4 Converter & Download
Firefox extension·by Convert4K
51
/ 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 7 years
- The developer's website is no longer reachable
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 MP3/MP4 Converter & Download's safety score vs every other extension we've scanned
Globally
42%of extensions carry more risk
Riskier ←→ Safer
Ranked against 402,594 extensions
In Games Entertainment
17%of games entertainment extensions carry more risk
Riskier ←→ Safer
Ranked against 9,482 games entertainment extensions
Findings
26
median 4Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
2
median 3Declared in manifest
Active users
849
median 4vs category median
Findings breakdown
Automated security signal · 26 distinct issues across 6 severities
26
distinct issues
detected
detected
Critical00%
High00%
Needs Review00%
Medium2077%
Low519%
Info14%
Permissions requested
2 permissions declared
No risky permissions
2 permissions requested — none are flagged as risky.
Info
*://www.youtube.com/*
No additional information available.
Info
*://convert4k.com/*
No additional information available.
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Scan performed by extenshi.io · Aug 1, 2026
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