SECURITY REPORT · EXTENSHI SCAN
ZERO VPN
Firefox extension·by negrobov
0
/ 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
ZERO VPN's safety score vs every other extension we've scanned
Globally
39%of extensions carry more risk
Riskier ←→ Safer
Ranked against 368,615 extensions
In Privacy & Security
31%of privacy & security extensions carry more risk
Riskier ←→ Safer
Ranked against 11,415 privacy & security extensions
Findings
6
median 5Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
4
median 4Declared in manifest
Active users
4
median 3vs category median
Findings breakdown
Automated security signal · 6 distinct issues across 6 severities
6
distinct issues
detected
detected
Critical117%
High233%
Needs Review00%
Medium233%
Low117%
Info00%
Permissions requested
3 risky permissions of 4 total
3 high-risk permissions require attention
This extension requests 4 permissions in total. 3 of them grant broad capabilities that are worth a careful look.
High
Control proxy settings
Can route your browser traffic through a proxy server
High
Observe web requests
Can monitor all network requests made by the browser
High
Auth request provider
Can provide authentication credentials for web requests
Medium
Store local data
Can save data locally in the browser for persistence
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Scan performed by extenshi.io · Aug 25, 2026
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