SECURITY REPORT · EXTENSHI SCAN
ChessMaxus
Firefox extension·by Maxus
65
/ 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
ChessMaxus's safety score vs every other extension we've scanned
Globally
9%of extensions carry more risk
Riskier ←→ Safer
Ranked against 402,748 extensions
In Games Entertainment
3%of games entertainment extensions carry more risk
Riskier ←→ Safer
Ranked against 9,513 games entertainment extensions
Findings
28
median 4Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
3
median 3Declared in manifest
Active users
2
median 4vs category median
Findings breakdown
Automated security signal · 28 distinct issues across 6 severities
28
distinct issues
detected
detected
Scanners reported 31 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical00%
High311%
Needs Review00%
Medium2071%
Low518%
Info00%
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://www.chess.com/*
No additional information available.
Info
https://chess.com/*
No additional information available.
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Scan performed by extenshi.io · Sep 13, 2026
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