SECURITY REPORT · EXTENSHI SCAN
Jumpcat
Firefox extension·by Stefan Buck
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
Jumpcat's safety score vs every other extension we've scanned
Globally
12%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Appearance
2%of appearance extensions carry more risk
Riskier ←→ Safer
Ranked against 17,915 appearance extensions
Findings
47
median 3Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
3
median 2Declared in manifest
Active users
1
median 3vs category median
Findings breakdown
Automated security signal · 47 distinct issues across 6 severities
47
distinct issues
detected
detected
Critical00%
High24%
Needs Review00%
Medium2553%
Low1736%
Info36%
Permissions requested
3 permissions declared
No risky permissions
3 permissions requested — none are flagged as risky.
Medium
Store local data
Can save data locally in the browser for persistence
Info
https://github.com/
No additional information available.
Info
https://github.com/*
No additional information available.
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Scan performed by extenshi.io · Aug 14, 2026
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