SECURITY REPORT · EXTENSHI SCAN
Thumbnail Viewer for YouTube™
Chrome extension·by Brandon Fowler
0
/ 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
Thumbnail Viewer for YouTube™'s safety score vs every other extension we've scanned
Globally
60%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Lifestyle
63%of lifestyle extensions carry more risk
Riskier ←→ Safer
Ranked against 43,972 lifestyle extensions
Findings
7
median 12Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
5
median 1Declared in manifest
Active users
3
median 26vs category median
Findings breakdown
Automated security signal · 7 distinct issues across 6 severities
7
distinct issues
detected
detected
Critical00%
High114%
Needs Review00%
Medium571%
Low114%
Info00%
Permissions requested
1 risky permission of 5 total
1 high-risk permission require attention
This extension requests 5 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
High
Manage downloads
Can initiate downloads and access your download history
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
Medium
Add context menu items
Can add custom items to the right-click context menu
Medium
Store local data
Can save data locally in the browser for persistence
Low
Use side panel
Can display content in the browser side panel
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Scan performed by extenshi.io · Aug 22, 2026
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