SECURITY REPORT · EXTENSHI SCAN
Ferry — Private URL Redirector
Firefox extension·by hackslashdash
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
Ferry — Private URL Redirector's safety score vs every other extension we've scanned
Globally
20%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Privacy & Security
15%of privacy & security extensions carry more risk
Riskier ←→ Safer
Ranked against 11,537 privacy & security extensions
Findings
29
median 5Lower is safer
Critical findings
2
median 0Severity = Critical
Permissions
2
median 4Declared in manifest
Active users
0
median 3vs category median
Findings breakdown
Automated security signal · 29 distinct issues across 6 severities
29
distinct issues
detected
detected
Critical27%
High13%
Needs Review00%
Medium2276%
Low414%
Info00%
Permissions requested
2 permissions declared
No risky permissions
2 permissions requested — none are flagged as risky.
Medium
Store local data
Can save data locally in the browser for persistence
Low
Block network requests (declarative)
Can block or redirect network requests using predefined rules without seeing content
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Scan performed by extenshi.io · Aug 6, 2026
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