SECURITY REPORT · EXTENSHI SCAN

Is Dead Rat Replacer safe?

Checked version: not provided · Assessment updated (UTC): 2026-08-03

Firefox extension·by Dead rat
50
/ 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

Dead Rat Replacer's safety score vs every other extension we've scanned
Globally
39%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 415,509 extensions
In Photos Music Videos
22%of photos music videos extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 11,254 photos music videos extensions
Findings
4
median 5Lower is safer
Critical findings
1
median 0Severity = Critical
Permissions
1
median 3Declared in manifest
Active users
1
median 6vs category median

Findings breakdown

Automated security signal · 4 distinct issues across 6 severities
4
distinct issues
detected

Permissions requested

1 risky permission of 1 total
1 critical permission require attention
This extension requests 1 permission in total. 1 of them grant broad capabilities that are worth a careful look.
Critical
Access to all websites

Can read and modify content on every website you visit

Are you the author of Dead Rat Replacer?

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 Dead Rat Replacer'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/122029)](https://catalog.extenshi.io/extensions/122029/security)
HTML
<a href="https://catalog.extenshi.io/extensions/122029/security"><img src="https://catalog.extenshi.io/api/badge/122029" alt="Extenshi security score" /></a>

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

Scan performed by extenshi.io · Aug 3, 2026
Browser extensions made transparent.

What this assessment covers

Store listing
Firefox
Checked version
Not provided in this assessment
Current listed version
2.0
Assessment updated (UTC)
Assessment status
Completed

Recorded findings: 1 critical and 0 high severity. Read the finding details before interpreting the score; automated flags are not proof of malicious behaviour.

Automated analysis looks for suspicious code, permissions and other risk signals. It does not observe every runtime behaviour or independently audit the publisher’s servers. A low-risk result is not a guarantee of safety. How our checks work.

Compare extensions by task