SECURITY REPORT · EXTENSHI SCAN
Claude Usage Monitor
Firefox extension·by Fojle Rabbi
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
Claude Usage Monitor's safety score vs every other extension we've scanned
Globally
81.58%of extensions carry more risk
Riskier ←→ Safer
Ranked across every extension we scan
In its category
71.58%of its category extensions carry more risk
Riskier ←→ Safer
Ranked within its category
Findings
7
median 38Lower is safer
Risky permissions
1
median 1Critical + high perms
Total permissions
3
median 4All declared perms
Critical findings
1
median 2Severity = Critical
Findings breakdown
Automated security signal · 7 findings across 5 severities
7
findings
detected
detected
Critical114%
High114%
Medium343%
Low229%
Info00%
Permissions requested
1 risky permission of 3 total
1 high-risk permission require attention
This extension requests 3 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
High
Access browser cookies
Can read and modify cookies, potentially accessing login sessions
Medium
Store local data
Can save data locally in the browser for persistence
Info
https://claude.ai/*
No additional information available.
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Scan performed by extenshi.io · Jun 25, 2026· partial run (some scanners failed)
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