extenshi.io
SECURITY REPORT · EXTENSHI SCAN

BlockNSFW – Porn & Adult Content Filter

Firefox extension·by Monolab Co.
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

BlockNSFW – Porn & Adult Content Filter's safety score vs every other extension we've scanned
Globally
81.2%of extensions carry more risk
This extension
Riskier ←→ Safer
Ranked across every extension we scan
In its category
71.2%of its category extensions carry more risk
This extension
Riskier ←→ Safer
Ranked within its category
Findings
21
median 38Lower is safer
Risky permissions
1
median 1Critical + high perms
Total permissions
4
median 4All declared perms
Critical findings
1
median 2Severity = Critical

Findings breakdown

Automated security signal · 21 distinct issues across 6 severities
21
distinct issues
detected

Permissions requested

1 risky permission of 4 total
1 critical permission require attention
This extension requests 4 permissions 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

Medium
Store local data

Can save data locally in the browser for persistence

Medium
Access current tab

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

Low
Block network requests (declarative)

Can block or redirect network requests using predefined rules without seeing content

Are you the author of BlockNSFW – Porn & Adult Content Filter?

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 BlockNSFW – Porn & Adult Content Filter'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/14030)](https://catalog.extenshi.io/extensions/14030/security)
HTML
<a href="https://catalog.extenshi.io/extensions/14030/security"><img src="https://catalog.extenshi.io/api/badge/14030" alt="Extenshi security score" /></a>

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

Scan performed by extenshi.io · Jul 25, 2026· partial run (some scanners failed)
Browser extensions made transparent.