SECURITY REPORT · EXTENSHI SCAN
Jumper
Firefox extension·by Martin W
93
/ 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
Jumper's safety score vs every other extension we've scanned
Globally
69%of extensions carry more risk
Riskier ←→ Safer
Ranked against 415,885 extensions
In Social & Communication
58%of social & communication extensions carry more risk
Riskier ←→ Safer
Ranked against 13,751 social & communication extensions
Findings
10
median 9Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
6
median 3Declared in manifest
Active users
1
median 4vs category median
Findings breakdown
Automated security signal · 10 distinct issues across 6 severities
10
distinct issues
detected
detected
Critical00%
High110%
Needs Review00%
Medium110%
Low880%
Info00%
Permissions requested
1 risky permission of 6 total
1 high-risk permission require attention
This extension requests 6 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
High
View open tabs
Can see URLs and titles of all open tabs
Info
http://*.reddit.com/*
No additional information available.
Info
https://*.reddit.com/*
No additional information available.
Info
https://lobste.rs/*
No additional information available.
Info
https://runescape.wiki/*
No additional information available.
Info
*://news.ycombinator.com/*
No additional information available.
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Scan performed by extenshi.io · Oct 23, 2026
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