SECURITY REPORT · EXTENSHI SCAN
IIIF Downloadera
Firefox extension·by Denna
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
IIIF Downloadera's safety score vs every other extension we've scanned
Globally
27%of extensions carry more risk
Riskier ←→ Safer
Ranked against 369,936 extensions
In Download Management
17%of download management extensions carry more risk
Riskier ←→ Safer
Ranked against 4,307 download management extensions
Findings
18
median 4Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
5
median 4Declared in manifest
Active users
0
median 9vs category median
Findings breakdown
Automated security signal · 18 distinct issues across 6 severities
18
distinct issues
detected
detected
Scanners reported 24 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.
Critical00%
High317%
Needs Review00%
Medium1267%
Low317%
Info00%
Permissions requested
2 risky permissions of 5 total
2 high-risk permissions require attention
This extension requests 5 permissions in total. 2 of them grant broad capabilities that are worth a careful look.
High
View open tabs
Can see URLs and titles of all open tabs
High
Manage downloads
Can initiate downloads and access your download history
Medium
Access current tab
Can temporarily access the content of the active tab when you click the extension
Info
*://gallica.bnf.fr/*
No additional information available.
Info
*://nutrisco-patrimoine.lehavre.fr/*
No additional information available.
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Scan performed by extenshi.io · Aug 12, 2026
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