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FocusShell

mozilla.orgFocus & Pomodoro timers

PulseGate's liveness check found it on 24 Sep 2026; it is registered on Firefox Add-ons and has been in the index since 24 Sep 2026. How this is checked

FocusShell is a Firefox extension that creates temporary focus sessions by blocking new tabs, notifications, and external navigation. It is intended for individuals who want to reduce browser distractions while working or studying.

Inferred · not functionally tested

FreeWebEmbeddableCloud-managed
FocusShell preview
Visit mozilla.org

Overview

5 features

Purpose: Preventing distracting browser activity during focused work sessions.

Inferred · not functionally tested

Audience: people who need distraction-free focus sessions

Inferred · not functionally tested

Functions: Unknown

Interfaces: API: unknown · MCP: unknown · CLI: unknown · Self-hosting: unknown

Recorded constraints: pricing: free · license: Proprietary · platforms: WEB · deployment: browser, embeddable, cloud_managed

Constraint provenance is unknown; confirm requirements with the publisher.

Record sources: addons.mozilla.org · addons.mozilla.org. These links do not verify the individual claims.

In the Focus & Pomodoro timers space, FocusShell takes a focused approach. Inferred · not functionally tested: It focuses on preventing distracting browser activity during focused work sessions. Inferred · not functionally tested: FocusShell is a consumer product aimed at people who need distraction-free focus sessions. Basis unknown · not verified: FocusShell costs nothing to use. Basis unknown · not verified: FocusShell is available on the web and embeddable surfaces.

It is developed by Phyllis, and it first shipped in 2026. Inferred · not functionally tested: Among its 5 catalogued features are focus periods, new-tab blocking, and notification blocking. The interface is available in 32 languages, including Czech, German, and Greek.

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

Tasks: Inferred · not functionally tested

  • Focus periods
  • New-tab blocking
  • Notification blocking
  • Navigation blocking
  • Permission controls

Topics: Inferred · not functionally tested

Tags
distraction-blockerfocus-sessionsfirefox-extensionnotification-blocking

JSON profile · Text profile · Access guide

Built with & integrations

Runs on
BrowserEmbeddableCloud-managed

Trust & compliance

Public signals
HTTPSPrivacy PolicyTerms of ServiceFree tierMulti-languageStore listing found
Legal
Privacy Policy Terms of Service

Indexing history

1

What PulseGate has recorded for this listing

  1. Indexed23 Sep · 23:56 UTC
    FocusShell seen via Firefox Add-ons
    Source: Firefox Add-ons · Open

Frequently asked questions about FocusShell

What is FocusShell?
Inferred · not functionally tested: FocusShell focuses on preventing distracting browser activity during focused work sessions. It is catalogued under Focus & Pomodoro timers on PulseGate.
Who should use FocusShell?
Inferred · not functionally tested: FocusShell is a consumer product built for people who need distraction-free focus sessions.
Is FocusShell free?
Basis unknown · not verified: Yes — FocusShell is free to use.
What platforms does FocusShell run on?
Basis unknown · not verified: FocusShell runs on the web and embeddable surfaces.
Is FocusShell still active?
PulseGate's liveness check found it on 24 Sep 2026.
What projects are similar to FocusShell?
Similar projects tracked by PulseGate include Focus Shield, FocusShield, and Focus Field.Focus ShieldFocusShieldFocus Field
Who makes FocusShell?
FocusShell is developed by Phyllis.
When did FocusShell launch?
FocusShell first shipped in 2026.

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