SECURITY REPORT · EXTENSHI SCAN
Ao3 Series Downloader
Firefox extension·by Sean Z Writes
94
/ 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
Ao3 Series Downloader's safety score vs every other extension we've scanned
Globally
72%of extensions carry more risk
Riskier ←→ Safer
Ranked against 384,505 extensions
In Download Management
56%of download management extensions carry more risk
Riskier ←→ Safer
Ranked against 4,592 download management extensions
Findings
4
median 5Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
2
median 4Declared in manifest
Active users
446
median 9vs category median
Findings breakdown
Automated security signal · 4 distinct issues across 6 severities
4
distinct issues
detected
detected
Critical00%
High125%
Needs Review00%
Medium250%
Low125%
Info00%
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
Manage downloads
Can initiate downloads and access your download history
Info
https://archiveofourown.org/series/*
No additional information available.
Are you the author of Ao3 Series Downloader?
Claim this extension to respond to findings, add context, and earn a verified badge on extenshi.io.
Add the badge to your README
Show Ao3 Series Downloader's live security score on GitHub or in your docs
Scan performed by extenshi.io · Sep 18, 2026
Browser extensions made transparent.