SECURITY REPORT · EXTENSHI SCAN
Youtube Thumbnail Downloader
Firefox extension·by Dhrub Kumar Sharma
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 Thumbnail Downloader'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 Photos Music Videos
16%of photos music videos extensions carry more risk
Riskier ←→ Safer
Ranked against 11,181 photos music videos extensions
Findings
14
median 4Lower is safer
Critical findings
2
median 0Severity = Critical
Permissions
3
median 3Declared in manifest
Active users
282
median 6vs category median
Findings breakdown
Automated security signal · 14 distinct issues across 6 severities
14
distinct issues
detected
detected
Scanners reported 22 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical214%
High321%
Needs Review00%
Medium643%
Low321%
Info00%
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
View open tabs
Can see URLs and titles of all open tabs
Info
https://www.youtube.com/*
No additional information available.
Info
*://*.youtube.com/*
No additional information available.
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Scan performed by extenshi.io · Aug 25, 2026
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