extenshi.io
SECURITY REPORT · EXTENSHI SCAN

UrlReplacer

Firefox extension·by kotonaiyo
81
/ 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

UrlReplacer's safety score vs every other extension we've scanned
Globally
40%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 403,277 extensions
In Social & Communication
21%of social & communication extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 13,675 social & communication extensions
Findings
5
median 5Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
6
median 3Declared in manifest
Active users
0
median 3vs category median

Findings breakdown

Automated security signal · 5 distinct issues across 6 severities
5
distinct issues
detected

Permissions requested

1 risky permission of 6 total
1 critical permission require attention
This extension requests 6 permissions in total. 1 of them grant broad capabilities that are worth a careful look.
Critical
Manage other extensions

Can enable, disable, or uninstall other browser extensions

Medium
Access current tab

Can temporarily access the content of the active tab when you click the extension

Info
*://*.mozilla.org/*

No additional information available.

Info
*://docs.microsoft.com/*

No additional information available.

Info
*://learn.microsoft.com/*

No additional information available.

Info
*://www.youtube.com/*

No additional information available.

Are you the author of UrlReplacer?

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 UrlReplacer'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/107885)](https://catalog.extenshi.io/extensions/107885/security)
HTML
<a href="https://catalog.extenshi.io/extensions/107885/security"><img src="https://catalog.extenshi.io/api/badge/107885" alt="Extenshi security score" /></a>

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

Scan performed by extenshi.io · Aug 24, 2026
Browser extensions made transparent.