SECURITY REPORT · EXTENSHI SCAN
Web Link Previewer
Firefox extension·by Genocyber
87
/ 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
Web Link Previewer's safety score vs every other extension we've scanned
Globally
57%of extensions carry more risk
Riskier ←→ Safer
Ranked against 402,594 extensions
In Other
25%of other extensions carry more risk
Riskier ←→ Safer
Ranked against 28,709 other extensions
Findings
8
median 3Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
3
median 3Declared in manifest
Active users
1
median 2vs category median
Findings breakdown
Automated security signal · 8 distinct issues across 6 severities
8
distinct issues
detected
detected
Critical00%
High113%
Needs Review00%
Medium675%
Low113%
Info00%
Permissions requested
1 risky permission of 3 total
1 critical permission require attention
This extension requests 3 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
Critical
Access to all websites
Can read and modify content on every website you visit
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 · Sep 20, 2026
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