SECURITY REPORT · EXTENSHI SCAN
ThumbGrabber Pro
Firefox extension·by YouTube Thumbnail Downloader
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
ThumbGrabber Pro'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 Photos Music Videos
32%of photos music videos extensions carry more risk
Riskier ←→ Safer
Ranked against 10,146 photos music videos extensions
Findings
7
median 4Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
2
median 3Declared in manifest
Active users
0
median 6vs 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 2 total
1 high-risk permission require attention
This extension requests 2 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
Read clipboard
Can read text and data currently on your clipboard
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Scan performed by extenshi.io · Aug 24, 2026
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