Who is Firefox Workspaces for?

Firefox Workspaces is an open-source project built for firefox users who manage many tabs.

What platforms does Firefox Workspaces run on?

Firefox Workspaces runs on the web and embeddable surfaces.

Is Firefox Workspaces still maintained?

Unverified. Firefox Workspaces 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 Firefox Workspaces?

Similar projects tracked by PulseGate include Tab Workspaces, Tab Stations, and Binder Tabs.

Who makes Firefox Workspaces?

Firefox Workspaces is developed by fm-sys.

How long has Firefox Workspaces been around?

Firefox Workspaces first shipped in 2025.

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Firefox Workspaces

Name: Firefox Workspaces
Author: fm-sys

github.comBrowser DevTools & extensions

Firefox Workspaces is an open-source Firefox extension that organizes tabs into separate workspaces. Users can hide and show tab groups to switch between browsing contexts while keeping unrelated tabs out of view.

Open SourceWebEmbeddable

Visit github.com

Overview

4 features

Firefox Workspaces sits in PulseGate's Browser DevTools & extensions category. It focuses on keeping tabs organized and separated into focused browsing workspaces. It is built as an open-source project for firefox users who manage many tabs. Firefox Workspaces is open source under the Open Source license. Firefox Workspaces is available on the web and embeddable surfaces.

It is developed by fm-sys, and it first shipped in 2025. Key capabilities include tab grouping, workspace switching, and tab hiding.

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

Tab grouping
Workspace switching
Tab hiding
Tab showing

Built with & integrations

Runs on

BrowserEmbeddable

Trust & compliance

License

Open Source

Verified signals

HTTPSPrivacy Policy Terms of ServiceOpen SourceFree tierStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed10 Sept · 03:02 UTC
Workspaces verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Firefox Workspaces

What does Firefox Workspaces do?: Firefox Workspaces focuses on keeping tabs organized and separated into focused browsing workspaces. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is Firefox Workspaces for?: Firefox Workspaces is an open-source project built for firefox users who manage many tabs.
Does Firefox Workspaces have a free plan?: Yes — Firefox Workspaces is open source under the Open Source license and free to use.
What platforms does Firefox Workspaces run on?: Firefox Workspaces runs on the web and embeddable surfaces.
Is Firefox Workspaces still maintained?: Unverified. Firefox Workspaces 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 Firefox Workspaces?: Similar projects tracked by PulseGate include Tab Workspaces, Tab Stations, and Binder Tabs.Tab Workspaces Tab Stations Binder Tabs
Who makes Firefox Workspaces?: Firefox Workspaces is developed by fm-sys.
How long has Firefox Workspaces been around?: Firefox Workspaces first shipped in 2025.

At a glance

Pricing: Open Source
Platforms: Web
Languages: English
License: Open Source
Built for: Firefox users who manage many tabs
Model: Open source
Solves: Keeping tabs organized and separated into focused browsing workspaces.

Registered as

Firefox Add-ons: firefox-workspaces

Developer

fm-sys

Index record

Indexed: 10 Sept 2026
Lifecycle: Alive
Last seen: 10 Sept 2026

Identity audit (13)

Slug: workspaces-github-com
Lifecycle state recorded: 10 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 10 Sept 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: Written by a language model from the project's public pages.
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: 10 Sept 2026
Canonical URL: https://github.com/fm-sys/firefox-workspaces

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