# Window Session Manager

> Treats each window as a named session. Auto-saves tabs continuously, lists open and closed sessions in the sidebar, and restores closed sessions into new windows.

Canonical page: [https://chrome-stats.com/d/window-session-manager](https://chrome-stats.com/d/window-session-manager)

## Overview

- **ID:** `window-session-manager`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Tongo Inc
- **Category:** bookmarks,tabs
- **Daily users:** 4
- **Weekly downloads:** 2
- **Version:** 0.8.1
- **Last updated:** 2026-07-08
- **First published:** 2026-06-13
- **Size:** 1.85 MB
- **Data as of:** 2026-09-06
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/window-session-manager/)

## Description

Window Session Manager treats each window as a session: name it once, and its tabs are saved automatically, on every change and when the window closes. Nothing to remember to save.

Sidebar overview. All your sessions in one list, with an indicator showing which are open. Click a closed session to reopen it in a new window; click an open one to jump to it. Expand any session to see its tabs and open just the one you need.

Fast, light restores. Reopened windows load only the tab you were on — the rest stay unloaded until clicked, so even large sessions restore instantly. Pinned tabs and Multi-Account Container assignments are preserved.

Named windows. The session name can be shown in the window title, and survives browser restarts and reopened windows. Works alongside the Window Titler extension: names you've already set there are picked up automatically.

Your data stays yours. Export sessions to JSON (all at once or one at a time) and import them anywhere. Everything is stored locally — no accounts, no servers, no data collection.

## Rankings

- #50,577 — Overall
- #81 — session
- #224 — mission

## Permissions and access

### Permissions

- `tabs`
- `tabGroups`
- `storage`
- `sessions`
- `cookies`
- `alarms`

## Safety

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

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- [My Session Manager](https://chrome-stats.com/d/my-session-manager) — 1 users
- [Session Panel](https://chrome-stats.com/d/session-panel) — 9 users, 5.00 / 5
- [Browser Session Manager](https://chrome-stats.com/d/browser-session-manager) — 1 users
- [Window Session Saver](https://chrome-stats.com/d/window-session-saver) — 14 users, 1.67 / 5
- [Simple Window Saver](https://chrome-stats.com/d/simplewindowsaver) — 17 users, 5.00 / 5
- [Simple Session Manager](https://chrome-stats.com/d/simple-session-manager) — 40 users, 2.33 / 5
- [Session Manager](https://chrome-stats.com/d/lightweight-session-manager)
- [Super Session Manager](https://chrome-stats.com/d/super-session-manager) — 18 users, 5.00 / 5
- [Tab Session Manager - Save & Restore](https://chrome-stats.com/d/tabsm) — 8 users, 4.50 / 5

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Source: [Chrome-Stats](https://chrome-stats.com/d/window-session-manager)