SECURITY REPORT · EXTENSHI SCAN
Advanced Appearance Customizer
Firefox extension·by Suly
0
/ 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
Advanced Appearance Customizer's safety score vs every other extension we've scanned
Globally
56%of extensions carry more risk
Riskier ←→ Safer
Ranked against 120,710 extensions
In Appearance
40%of appearance extensions carry more risk
Riskier ←→ Safer
Ranked against 12,579 appearance extensions
Findings
4
median 3Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
3
median 2Declared in manifest
Active users
1
median 4vs category median
Findings breakdown
Automated security signal · 4 findings across 5 severities
4
findings
detected
detected
Critical00%
High00%
Medium375%
Low125%
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
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
Low
Customize theme
Can change the browser theme appearance
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Scan performed by extenshi.io · Jun 25, 2026
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