SECURITY REPORT · EXTENSHI SCAN
VTT Sniffer
Firefox extension·by gtanco
74
/ 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
VTT Sniffer's safety score vs every other extension we've scanned
Globally
21%of extensions carry more risk
Riskier ←→ Safer
Ranked against 397,225 extensions
In Download Management
13%of download management extensions carry more risk
Riskier ←→ Safer
Ranked against 4,783 download management extensions
Findings
44
median 5Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
4
median 4Declared in manifest
Active users
2
median 9vs category median
Findings breakdown
Automated security signal · 44 distinct issues across 6 severities
44
distinct issues
detected
detected
Critical12%
High00%
Needs Review00%
Medium3989%
Low49%
Info00%
Permissions requested
4 permissions declared
No risky permissions
4 permissions requested — none are flagged as risky.
Medium
Store local data
Can save data locally in the browser for persistence
Info
https://*.sharepoint.com/*
No additional information available.
Info
https://teams.microsoft.com/*
No additional information available.
Info
https://teams.cloud.microsoft/*
No additional information available.
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Scan performed by extenshi.io · Aug 25, 2026
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