SECURITY REPORT · EXTENSHI SCAN
Obsidian Ao3
Firefox extension·by Harshal-R-Maru
80
/ 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
Obsidian Ao3's safety score vs every other extension we've scanned
Globally
28%of extensions carry more risk
Riskier ←→ Safer
Ranked against 421,529 extensions
In Appearance
11%of appearance extensions carry more risk
Riskier ←→ Safer
Ranked against 19,082 appearance extensions
Findings
12
median 6Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
73
median 2Declared in manifest
Active users
12
median 3vs category median
Findings breakdown
Automated security signal · 12 distinct issues across 6 severities
12
distinct issues
detected
detected
Critical18%
High00%
Needs Review00%
Medium1083%
Low18%
Info00%
Permissions requested
73 permissions declared
No risky permissions
73 permissions requested — none are flagged as risky.
Info
*://*.archiveofourown.org/*
No additional information available.
Info
*://*.archiveofourown.org/media*
No additional information available.
Info
*://*.archiveofourown.org/skins/*
No additional information available.
Info
*://*.archiveofourown.org/skins*
No additional information available.
Info
*://*.archiveofourown.org/users/*/preferences*
No additional information available.
Info
*://*.archiveofourown.org/users/*/blocked/users/*confirm*
No additional information available.
Info
*://*.archiveofourown.org/users/*/muted/users/*confirm*
No additional information available.
Info
*://*.archiveofourown.org/users/*/pseuds/*/edit
No additional information available.
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Scan performed by extenshi.io · Oct 22, 2026
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