SECURITY REPORT · EXTENSHI SCAN
AO3 Filter
Firefox extension·by Harshal-R-Maru
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
AO3 Filter's safety score vs every other extension we've scanned
Globally
22%of extensions carry more risk
Riskier ←→ Safer
Ranked against 120,710 extensions
In Appearance
7%of appearance extensions carry more risk
Riskier ←→ Safer
Ranked against 12,579 appearance extensions
Findings
8
median 3Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
4
median 2Declared in manifest
Active users
0
median 4vs category median
Findings breakdown
Automated security signal · 8 findings across 5 severities
8
findings
detected
detected
Critical113%
High00%
Medium675%
Low113%
Info00%
Permissions requested
1 risky permission of 4 total
1 high-risk permission require attention
This extension requests 4 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
High
Execute scripts in pages
Can inject and execute JavaScript code in web pages
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
Info
*://archiveofourown.org/*
No additional information available.
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Scan performed by extenshi.io · Jul 12, 2026
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