extenshi.io
SECURITY REPORT · EXTENSHI SCAN

Duplicate Tabs Preventor

Chrome extension·by Viking
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

Duplicate Tabs Preventor's safety score vs every other extension we've scanned
Globally
38%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 409,539 extensions
In Productivity
49%of productivity extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 198,326 productivity extensions
Findings
8
median 16Lower is safer
Critical findings
2
median 0Severity = Critical
Permissions
3
median 3Declared in manifest
Active users
277
median 14vs category median

Findings breakdown

Automated security signal · 8 distinct issues across 6 severities
8
distinct issues
detected

Permissions requested

2 risky permissions of 3 total
2 high-risk permissions require attention
This extension requests 3 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
Store local data

Can save data locally in the browser for persistence

Are you the author of Duplicate Tabs Preventor?

Claim this extension to respond to findings, add context, and earn a verified badge on extenshi.io.

Claim this extension

Add the badge to your README

Show Duplicate Tabs Preventor's live security score on GitHub or in your docs
Extenshi security score badge preview
Markdown
[![Extenshi security score](https://catalog.extenshi.io/api/badge/233284)](https://catalog.extenshi.io/extensions/233284/security)
HTML
<a href="https://catalog.extenshi.io/extensions/233284/security"><img src="https://catalog.extenshi.io/api/badge/233284" alt="Extenshi security score" /></a>

The badge always shows the current score — it updates automatically after every scan.

Scan performed by extenshi.io · Aug 15, 2026
Browser extensions made transparent.