SECURITY REPORT · EXTENSHI SCAN
X/Twitter/Pixiv Image Downloader
Firefox extension·by sw
78
/ 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
X/Twitter/Pixiv Image Downloader's safety score vs every other extension we've scanned
Globally
33%of extensions carry more risk
Riskier ←→ Safer
Ranked against 409,539 extensions
In Photos Music Videos
16%of photos music videos extensions carry more risk
Riskier ←→ Safer
Ranked against 11,181 photos music videos extensions
Findings
11
median 4Lower is safer
Critical findings
2
median 0Severity = Critical
Permissions
4
median 3Declared in manifest
Active users
4
median 6vs category median
Findings breakdown
Automated security signal · 11 distinct issues across 6 severities
11
distinct issues
detected
detected
Critical218%
High327%
Needs Review00%
Medium327%
Low327%
Info00%
Permissions requested
3 risky permissions of 4 total
3 high-risk permissions require attention
This extension requests 4 permissions in total. 3 of them grant broad capabilities that are worth a careful look.
High
Manage downloads
Can initiate downloads and access your download history
High
Access all HTTP sites
Can read and modify content on all non-encrypted websites
High
Access all HTTPS sites
Can read and modify content on all encrypted websites
Medium
Store local data
Can save data locally in the browser for persistence
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Scan performed by extenshi.io · Aug 25, 2026
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