SECURITY REPORT · EXTENSHI SCAN
CUM - Claude Usage Meter
Firefox extension·by dvango
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
CUM - Claude Usage Meter's safety score vs every other extension we've scanned
Globally
44%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Alerts & Updates
21%of alerts & updates extensions carry more risk
Riskier ←→ Safer
Ranked against 6,603 alerts & updates extensions
Findings
16
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 · 16 distinct issues across 6 severities
16
distinct issues
detected
detected
Critical00%
High00%
Needs Review00%
Medium1169%
Low319%
Info213%
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
Low
Schedule tasks
Can schedule periodic background tasks
Info
https://claude.ai/*
No additional information available.
Info
https://www.claude.ai/*
No additional information available.
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Scan performed by extenshi.io · Aug 3, 2026
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