What is Site Blocker?

Site Blocker focuses on blocking distracting websites to help users stay focused. It is catalogued under Browser DevTools & extensions on PulseGate.

Who should use Site Blocker?

Site Blocker is a consumer product built for firefox users seeking distraction-free browsing.

Does Site Blocker have a free plan?

Yes — Site Blocker is free to use.

What platforms does Site Blocker run on?

Site Blocker runs on the web, embeddable surfaces, and Android.

Is Site Blocker still active?

Unverified. Site Blocker 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 Site Blocker?

Similar projects tracked by PulseGate include SiteBlocker, Website Blocker, and Website Blocker.

Who develops Site Blocker?

Site Blocker is developed by Jay.

When did Site Blocker launch?

Site Blocker first shipped in 2026.

Back to the index

Site Blocker

Name: Site Blocker
Author: Jay

mozilla.orgBrowser DevTools & extensions

Site Blocker is a Firefox extension that lets users add domains to a blocklist and redirects blocked sites to a calm page. It supports Firefox on desktop and Android and requires no data collection according to the developer.

FreeWebEmbeddableAndroid

Visit mozilla.org

2alternatives

5features

2026since

Overview

5 features

Site Blocker is a Browser DevTools & extensions project. It focuses on blocking distracting websites to help users stay focused. Site Blocker is a consumer product aimed at firefox users seeking distraction-free browsing. Site Blocker costs nothing to use. It runs on the web, embeddable surfaces, and Android.

It is developed by Jay, and it first shipped in 2026. Among its 5 catalogued features are domain blocklist, blocked-page redirects, and Firefox Android support. The interface is available in 32 languages, including Czech, German, and Greek.

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

Domain blocklist
Blocked-page redirects
Firefox Android support
Browser tab access
Optional site 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

Indexed11 Sept · 15:40 UTC
Site Blocker verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Site Blocker

What is Site Blocker?: Site Blocker focuses on blocking distracting websites to help users stay focused. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use Site Blocker?: Site Blocker is a consumer product built for firefox users seeking distraction-free browsing.
Does Site Blocker have a free plan?: Yes — Site Blocker is free to use.
What platforms does Site Blocker run on?: Site Blocker runs on the web, embeddable surfaces, and Android.
Is Site Blocker still active?: Unverified. Site Blocker 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 Site Blocker?: Similar projects tracked by PulseGate include SiteBlocker, Website Blocker, and Website Blocker.SiteBlocker Website Blocker Website Blocker
Who develops Site Blocker?: Site Blocker is developed by Jay.
When did Site Blocker launch?: Site Blocker first shipped in 2026.

At a glance

Pricing: Free
Platforms: Web
First seen: 11 Sept 2026
Built for: Firefox users seeking distraction-free browsing
Model: B2C
Solves: Blocking distracting websites to help users stay focused.

Registered as

Firefox Add-ons: site-blocker-iue

Developer

Jay

Index record

Indexed: 11 Sept 2026
Lifecycle: Alive
First seen: Sept 2026
Last seen: 11 Sept 2026

Identity audit (13)

Slug: site-blocker-mozilla-org
Lifecycle state recorded: 11 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 11 Sept 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
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: 11 Sept 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/site-blocker-iue

Ship this? Send a correction — no account, and you get a link to follow it.

Similar projects

Closest matches by what these projects do