What does Website Safety Checker do?

Website Safety Checker focuses on checking whether websites are safe and preventing access to malicious pages. It is catalogued under Website firewall, bot & spam protection on PulseGate.

Who should use Website Safety Checker?

Website Safety Checker is a consumer product built for firefox users who want browser-based website safety checks.

Is Website Safety Checker free?

Yes — Website Safety Checker is free to use.

What platforms does Website Safety Checker run on?

Website Safety Checker runs on the web, embeddable surfaces, Windows, macOS, and Linux.

Is Website Safety Checker still maintained?

Unverified. Website Safety Checker has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What projects are similar to Website Safety Checker?

Similar projects tracked by PulseGate include SEO Checker, Link Checker, and PrivacyCheck.

Who develops Website Safety Checker?

Website Safety Checker is developed by weaver.

How long has Website Safety Checker been around?

Website Safety Checker first shipped in 2025.

Back to the index

Website Safety Checker

Name: Website Safety Checker
Author: weaver

mozilla.orgWebsite firewall, bot & spam protection

Website Safety Checker is a Firefox browser extension that checks visited websites using the Google Safe Browsing API and blocks malicious pages. It provides browser notifications and requires access to tabs, navigation activity, and website data.

FreeWebEmbeddableWindowsmacOSLinux

Visit mozilla.org

Overview

5 features

Website Safety Checker sits in PulseGate's Website firewall, bot & spam protection category. It focuses on checking whether websites are safe and preventing access to malicious pages. Website Safety Checker is a consumer product aimed at firefox users who want browser-based website safety checks. It is available for free. It ships for the web, embeddable surfaces, Windows, macOS, and Linux.

weaver builds and maintains Website Safety Checker, and it first shipped in 2025. Key capabilities include malicious site blocking, safe browsing checks, and browser notifications. The interface is available in 32 languages, including Czech, German, and Greek. It exposes integrations via a public API.

Summary written by a language model from the project’s public pages.

Malicious site blocking
Safe browsing checks
Browser notifications
Navigation monitoring
Website activity access

Built with & integrations

Connectors

API

Runs on

BrowserEmbeddableWindowsmacOSLinux

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed16 Sep · 11:03 UTC
Website Safety Checker verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Website Safety Checker

What does Website Safety Checker do?: Website Safety Checker focuses on checking whether websites are safe and preventing access to malicious pages. It is catalogued under Website firewall, bot & spam protection on PulseGate.
Who should use Website Safety Checker?: Website Safety Checker is a consumer product built for firefox users who want browser-based website safety checks.
Is Website Safety Checker free?: Yes — Website Safety Checker is free to use.
What platforms does Website Safety Checker run on?: Website Safety Checker runs on the web, embeddable surfaces, Windows, macOS, and Linux.
Is Website Safety Checker still maintained?: Unverified. Website Safety Checker has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What projects are similar to Website Safety Checker?: Similar projects tracked by PulseGate include SEO Checker, Link Checker, and PrivacyCheck.SEO Checker Link Checker PrivacyCheck
Who develops Website Safety Checker?: Website Safety Checker is developed by weaver.
How long has Website Safety Checker been around?: Website Safety Checker first shipped in 2025.

At a glance

Pricing: Free
Platforms: Web
Built for: Firefox users who want browser-based website safety checks
Model: B2C
Solves: Checking whether websites are safe and preventing access to malicious pages.

Registered as

Firefox Add-ons: website-safety-checker-v1

Developer

weaver

Index record

Indexed: 16 Sep 2026
Lifecycle: Alive
Last seen: 16 Sep 2026

Identity audit (13)

Slug: website-safety-checker-mozilla-org
Lifecycle state recorded: 16 Sep 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 16 Sep 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 16 Sep 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/website-safety-checker-v1

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