# Windowed Container Workspaces

> Organize your browsing into isolated workspaces. Each workspace gets its own dedicated Firefox window and container — keeping cookies, sessions, and logins completely separate. Syncs across devices.

Canonical page: [https://chrome-stats.com/d/windowed-container-workspaces](https://chrome-stats.com/d/windowed-container-workspaces)

## Overview

- **ID:** `windowed-container-workspaces`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** brady77
- **Category:** privacy-security,tabs
- **Daily users:** 44
- **Weekly downloads:** 3
- **Rating:** 5.00 / 5 (1 ratings)
- **Version:** 1.6.14
- **Last updated:** 2026-05-24
- **First published:** 2026-04-13
- **Size:** 48 KB
- **Data as of:** 2026-09-18
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/windowed-container-workspaces/)
- **Website:** [https://github.com/brady77/windowed-container-workspaces](https://github.com/brady77/windowed-container-workspaces)

## Description

Windowed Container Workspaces lets you organize your browsing into named workspaces, each running in a dedicated Firefox window with a dedicated Firefox Container.

<strong>Perfect for:</strong>
- Freelancers and consultants managing multiple clients
- Developers working across multiple projects or environments
- Anyone who needs separate logins for the same service (e.g. two Google accounts)
- People who want to keep work and personal browsing completely isolated

<strong>Features:</strong>
- One workspace = one window = one Firefox Container
- Tabs are saved automatically and restored when you reopen a workspace
- Tab groups (including names and colors) are preserved across sessions
- Workspaces sync across devices via Firefox Sync
- A badge on the toolbar icon shows which workspace is currently active
- New tabs opened inside a workspace window are automatically assigned to the correct container
- Per-workspace storage usage indicator shows how close you are to the sync limit

<strong>Privacy &amp; Data</strong>
Windowed Container Workspaces stores and processes the following data:

<em>Stored locally on your device</em> (<code>storage.local</code>):
- A randomly generated device ID
- Your device name (auto-generated or manually set by you)
- Mapping of open workspace windows

<em>Stored locally and optionally synced via Firefox Sync</em> (<code>storage.sync</code>):
- Workspace names, colors, and icons
- Tab group names, colors, and collapsed state
- Tab URLs and page titles
- Tab pinned state
- Device ID and device name

<strong>This data is stored by Firefox as extension data.</strong>

<strong>If Firefox Sync for add-ons is enabled by the user, Firefox may synchronize this extension data between the user’s own Firefox profiles/devices using Mozilla Firefox Sync.</strong>

<strong>Firefox Sync feature is delivered by Mozilla Firefox, not by the Windowed Container Workspaces extension.</strong>

<strong>The developer does not receive, access, store, process, sell, or share this data.</strong>

<strong>The extension does not use analytics, telemetry, advertising, tracking scripts, or any developer-operated backend server.</strong>

<strong>The <code>cookies</code> permission is used only for Firefox container-related functionality. The extension does not read, store, export, or transmit cookie values.</strong>

<strong>The Export/Import backup feature saves data only to your local filesystem.
No network requests are made.</strong>

Sync requires a Firefox account with Sync enabled.

## Rankings

- #17,294 — Overall
- #63 — contain
- #158 — contact
- #181 — device
- #192 — windows
- #214 — work

## Permissions and access

### Permissions

- `tabs`
- `storage`
- `contextualIdentities`
- `cookies`
- `tabGroups`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Similar extensions and apps

- [Container Workspaces](https://chrome-stats.com/d/container-workspaces) — 75 users, 4.71 / 5
- [Better Workspaces](https://chrome-stats.com/d/better-workspaces) — 12 users, 2.00 / 5
- [Workspaces](https://chrome-stats.com/d/workspaces-manager) — 77 users, 4.67 / 5
- [Workspaces](https://chrome-stats.com/d/firefox-workspaces) — 367 users, 3.36 / 5
- [Multi-Session Container Tabs](https://chrome-stats.com/d/multi-session-container-tabs) — 22 users
- [Workspace](https://chrome-stats.com/d/workspace) — 199 users, 3.14 / 5
- [Workspaces](https://chrome-stats.com/d/workspaces-sidebar) — 44 users, 4.25 / 5
- [Workspaces+](https://chrome-stats.com/d/workspacesplus) — 110 users, 2.93 / 5
- [Sticky Window Containers](https://chrome-stats.com/d/sticky-window-containers) — 739 users, 4.69 / 5
- [Workspaces for Firefox](https://chrome-stats.com/d/workspaces-for-firefox) — 215 users, 3.67 / 5
- [Container Tab Groups Synchronisation](https://chrome-stats.com/d/container-tab-groups-sync) — 3 users
- [Tab Containers - Multi-Account Containers](https://chrome-stats.com/d/tab-containers) — 439 users, 4.00 / 5

---

Source: [Chrome-Stats](https://chrome-stats.com/d/windowed-container-workspaces)