SECURITY REPORT · EXTENSHI SCAN
Tree Style Tab in Separate Window
Firefox extension·by Lej77
0
/ 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 5 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
Tree Style Tab in Separate Window's safety score vs every other extension we've scanned
Globally
57%of extensions carry more risk
Riskier ←→ Safer
Ranked against 368,615 extensions
In Appearance
23%of appearance extensions carry more risk
Riskier ←→ Safer
Ranked against 17,698 appearance extensions
Findings
9
median 3Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
5
median 2Declared in manifest
Active users
142
median 3vs category median
Findings breakdown
Automated security signal · 9 distinct issues across 6 severities
9
distinct issues
detected
detected
Critical00%
High111%
Needs Review00%
Medium778%
Low111%
Info00%
Permissions requested
1 risky permission of 5 total
1 high-risk permission require attention
This extension requests 5 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
High
View open tabs(optional)
Can see URLs and titles of all open tabs
Medium
Store local data
Can save data locally in the browser for persistence
Medium
Custom menus
Can add custom items to the browser context menu
Medium
Show notifications
Can display desktop notifications outside the browser
Medium
Access session data
Can query and restore recently closed tabs and windows
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Scan performed by extenshi.io · Aug 24, 2026
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