SECURITY REPORT · EXTENSHI SCAN
Bitcoin Block Height
Firefox extension·by Bitcoin Block Height
0
/ 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
Bitcoin Block Height's safety score vs every other extension we've scanned
Globally
76%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Privacy & Security
63%of privacy & security extensions carry more risk
Riskier ←→ Safer
Ranked against 11,537 privacy & security extensions
Findings
4
median 5Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
2
median 4Declared in manifest
Active users
0
median 3vs category median
Findings breakdown
Automated security signal · 4 distinct issues across 6 severities
4
distinct issues
detected
detected
Critical00%
High00%
Needs Review00%
Medium250%
Low250%
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
Info
https://mempool.space/*
No additional information available.
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Scan performed by extenshi.io · Aug 9, 2026
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