extenshi.io
SECURITY REPORT · EXTENSHI SCAN

Fwich - Facebook Dark Mode

Firefox extension·by Ömer Yücel
53
/ 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
  • Bundles libraries with known vulnerabilities and no fix in sight
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

Fwich - Facebook Dark Mode's safety score vs every other extension we've scanned
Globally
48%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 397,380 extensions
In Appearance
20%of appearance extensions carry more risk
This extension
Riskier ←→ Safer
Ranked against 18,877 appearance extensions
Findings
17
median 3Lower is safer
Critical findings
0
median 0Severity = Critical
Permissions
3
median 2Declared in manifest
Active users
1
median 3vs category median

Findings breakdown

Automated security signal · 17 distinct issues across 6 severities
17
distinct issues
detected
Scanners reported 23 raw occurrences; repeats of the same issue at the same location are merged here. The list below shows every occurrence.

Permissions requested

3 permissions declared
No risky permissions
3 permissions requested — none are flagged as risky.
Medium
Store local data

Can save data locally in the browser for persistence

Info
https://wwww.facebook.com/*

No additional information available.

Info
https://www.facebook.com/*

No additional information available.

Are you the author of Fwich - Facebook Dark Mode?

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 Fwich - Facebook Dark Mode'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/128738)](https://catalog.extenshi.io/extensions/128738/security)
HTML
<a href="https://catalog.extenshi.io/extensions/128738/security"><img src="https://catalog.extenshi.io/api/badge/128738" alt="Extenshi security score" /></a>

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

Scan performed by extenshi.io · Aug 7, 2026
Browser extensions made transparent.