SECURITY REPORT · EXTENSHI SCAN
Move unloaded tabs for Tree Style Tab
Firefox extension·by Lej77
63
/ 100 SAFETY SCORE
RISKY
Several elevated signals. Read the findings before sharing this with your team.
Likely abandonedsafety score reduced by 30 points
- No update in over 6 years
Why this matters
An unmaintained extension keeps whatever flaws it shipped with, and a listing with users but no owner is an attractive target to buy and repurpose.
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
Move unloaded tabs for Tree Style Tab's safety score vs every other extension we've scanned
Globally
70%of extensions carry more risk
Riskier ←→ Safer
Ranked against 397,380 extensions
In Appearance
35%of appearance extensions carry more risk
Riskier ←→ Safer
Ranked against 18,877 appearance extensions
Findings
5
median 3Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
1
median 2Declared in manifest
Active users
602
median 3vs category median
Findings breakdown
Automated security signal · 5 distinct issues across 6 severities
5
distinct issues
detected
detected
Critical00%
High00%
Needs Review00%
Medium480%
Low120%
Info00%
Permissions requested
1 permission declared
No risky permissions
1 permission requested — none are flagged as risky.
Medium
Store local data
Can save data locally in the browser for persistence
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Scan performed by extenshi.io · Aug 18, 2026
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