SECURITY REPORT · EXTENSHI SCAN
Chess
Firefox extension·by mr_JSm1th
86
/ 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
Chess's safety score vs every other extension we've scanned
Globally
56%of extensions carry more risk
Riskier ←→ Safer
Ranked against 409,596 extensions
In Games Entertainment
26%of games entertainment extensions carry more risk
Riskier ←→ Safer
Ranked against 9,550 games entertainment extensions
Findings
18
median 4Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
2
median 3Declared in manifest
Active users
109
median 4vs category median
Findings breakdown
Automated security signal · 18 distinct issues across 6 severities
18
distinct issues
detected
detected
Critical00%
High16%
Needs Review00%
Medium1478%
Low211%
Info16%
Permissions requested
1 risky permission of 2 total
1 high-risk permission require attention
This extension requests 2 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
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Scan performed by extenshi.io · Sep 8, 2026
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