SECURITY REPORT · EXTENSHI SCAN
Tremor Radar
Firefox extension·by Ossain
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
Tremor Radar's safety score vs every other extension we've scanned
Globally
70%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Alerts & Updates
41%of alerts & updates extensions carry more risk
Riskier ←→ Safer
Ranked against 6,603 alerts & updates extensions
Findings
5
median 4Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
4
median 3Declared in manifest
Active users
1
median 2vs category median
Findings breakdown
Automated security signal · 5 distinct issues across 6 severities
5
distinct issues
detected
detected
Critical00%
High00%
Needs Review00%
Medium360%
Low240%
Info00%
Permissions requested
4 permissions declared
No risky permissions
4 permissions requested — none are flagged as risky.
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Show notifications
Can display desktop notifications outside the browser
Low
Schedule tasks
Can schedule periodic background tasks
Info
https://earthquake.usgs.gov/*
No additional information available.
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Scan performed by extenshi.io · Aug 24, 2026
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