WebBlock focuses on blocking unwanted webpages or subdomains while keeping the rest of a website accessible. It is catalogued under Browser DevTools & extensions on PulseGate.

Who should use WebBlock?

WebBlock is a consumer product built for firefox users who want granular website blocking.

Does WebBlock have a free plan?

Yes — WebBlock is free to use.

What platforms does WebBlock run on?

WebBlock runs on the web, embeddable surfaces, and Android.

Is WebBlock still maintained?

Unverified. WebBlock 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 WebBlock?

Similar projects tracked by PulseGate include Block Websites, Website Blocker, and DNS Blocker.

WebBlock is developed by CozyReplay.

How long has WebBlock been around?

WebBlock first shipped in 2025.

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WebBlock

Name: WebBlock
Author: CozyReplay

mozilla.orgBrowser DevTools & extensions

WebBlock is a Firefox browser extension that blocks specific pages or subdomains without blocking the entire parent website. It supports Firefox on desktop and Firefox for Android, and is distributed under the MIT License.

FreeWebEmbeddableAndroid

Visit mozilla.org

Overview

4 features

WebBlock is a Browser DevTools & extensions project. It focuses on blocking unwanted webpages or subdomains while keeping the rest of a website accessible. WebBlock is a consumer product aimed at firefox users who want granular website blocking. WebBlock is free to use. WebBlock is available on the web, embeddable surfaces, and Android.

Behind WebBlock is CozyReplay, and it first shipped in 2025. Key capabilities include page blocking, subdomain blocking, and firefox for Android. The interface is available in 32 languages, including Czech, German, and Greek.

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

Page blocking
Subdomain blocking
Firefox for Android
Website permissions

Built with & integrations

Runs on

BrowserEmbeddableAndroid

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 · 00:36 UTC
WebBlock verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about WebBlock

What is WebBlock?: WebBlock focuses on blocking unwanted webpages or subdomains while keeping the rest of a website accessible. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use WebBlock?: WebBlock is a consumer product built for firefox users who want granular website blocking.
Does WebBlock have a free plan?: Yes — WebBlock is free to use.
What platforms does WebBlock run on?: WebBlock runs on the web, embeddable surfaces, and Android.
Is WebBlock still maintained?: Unverified. WebBlock 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 WebBlock?: Similar projects tracked by PulseGate include Block Websites, Website Blocker, and DNS Blocker.Block Websites Website Blocker DNS Blocker
Who makes WebBlock?: WebBlock is developed by CozyReplay.
How long has WebBlock been around?: WebBlock first shipped in 2025.

At a glance

Pricing: Free
Platforms: Web
Built for: Firefox users who want granular website blocking
Model: B2C
Solves: Blocking unwanted webpages or subdomains while keeping the rest of a website accessible.

Registered as

Firefox Add-ons: webblock

Developer

CozyReplay

Index record

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

Identity audit (13)

Slug: webblock-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/webblock

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