SECURITY REPORT · EXTENSHI SCAN
Block Websites
Firefox extension·by murtbang
77
/ 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
Block Websites's safety score vs every other extension we've scanned
Globally
32%of extensions carry more risk
Riskier ←→ Safer
Ranked against 402,581 extensions
In Privacy & Security
26%of privacy & security extensions carry more risk
Riskier ←→ Safer
Ranked against 12,497 privacy & security extensions
Findings
7
median 5Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
2
median 4Declared in manifest
Active users
43
median 3vs category median
Findings breakdown
Automated security signal · 7 distinct issues across 6 severities
7
distinct issues
detected
detected
Critical114%
High00%
Needs Review00%
Medium571%
Low114%
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 · Jul 31, 2026
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