SECURITY REPORT · EXTENSHI SCAN
Tumblr Favourites!
Firefox extension·by Tuna's Trove
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
Tumblr Favourites!'s safety score vs every other extension we've scanned
Globally
38%of extensions carry more risk
Riskier ←→ Safer
Ranked against 391,562 extensions
In Search Tools
16%of search tools extensions carry more risk
Riskier ←→ Safer
Ranked against 16,293 search tools extensions
Findings
6
median 4Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
3
median 3Declared in manifest
Active users
1
median 2vs category median
Findings breakdown
Automated security signal · 6 distinct issues across 6 severities
6
distinct issues
detected
detected
Critical117%
High00%
Needs Review00%
Medium350%
Low233%
Info00%
Permissions requested
3 permissions declared
No risky permissions
3 permissions requested — none are flagged as risky.
Medium
Store local data
Can save data locally in the browser for persistence
Info
https://www.tumblr.com/*
No additional information available.
Info
https://*.tumblr.com/*
No additional information available.
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Scan performed by extenshi.io · Sep 20, 2026
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