SECURITY REPORT · EXTENSHI SCAN
jSin
Firefox extension·by Jack Bennett
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
jSin's safety score vs every other extension we've scanned
Globally
79.84%of extensions carry more risk
Riskier ←→ Safer
Ranked across every extension we scan
In its category
69.84%of its category extensions carry more risk
Riskier ←→ Safer
Ranked within its category
Findings
24
median 38Lower is safer
Risky permissions
1
median 1Critical + high perms
Total permissions
5
median 4All declared perms
Critical findings
15
median 2Severity = Critical
Findings breakdown
Automated security signal · 24 findings across 5 severities
24
findings
detected
detected
Critical1563%
High14%
Medium833%
Low00%
Info00%
Permissions requested
1 risky permission of 5 total
1 high-risk permission require attention
This extension requests 5 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
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
Medium
Store local data
Can save data locally in the browser for persistence
Info
http://*/
No additional information available.
Info
https://*/
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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