# Window Sill

> Sync your tabs in one Firefox window and seamlessly have them waiting for you on your computers

Canonical page: [https://chrome-stats.com/d/windowsill](https://chrome-stats.com/d/windowsill)

## Overview

- **ID:** `windowsill`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** kevincrane
- **Category:** bookmarks,tabs
- **Version:** 0.2.2
- **Last updated:** 2021-02-09
- **First published:** 2021-02-08
- **Size:** 26 KB
- **Data as of:** 2026-09-05
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/windowsill/)

## Description

Window Sill is a Firefox add-on that allows you to automatically sync your browser tabs across multiple computers. By opening the Window Sill, your tabs will be waiting for you on other logged-in devices. Closing a tab on one browser will also close it on others. Stay organized and easily switch between devices with Window Sill.

## Rankings

- #148,835 — Overall

## Permissions and access

### Permissions

- `storage`
- `tabs`

## 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

- [Tab Sync Lite](https://chrome-stats.com/d/tab-sync-lite) — 19 users, 5.00 / 5
- [Sync Saved Windows](https://chrome-stats.com/d/sync-saved-windows) — 9 users, 5.00 / 5
- [Sync Tab Groups](https://chrome-stats.com/d/sync-tab-groups-ext) — 34 users, 5.00 / 5
- [Synced Tab Groups](https://chrome-stats.com/d/synced-tab-groups) — 45 users
- [Auto Tab Sync](https://chrome-stats.com/d/auto-tab-sync) — 1 users
- [Window Saver v1.7](https://chrome-stats.com/d/window-saver-v1-7) — 1 users, 1.00 / 5
- [Synchronize Tab Scrolling](https://chrome-stats.com/d/synchronize-tab-scrolling) — 73 users, 5.00 / 5
- [Pinned Tab Sync](https://chrome-stats.com/d/pinned-tab-sync) — 20 users
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- [Tab Focus Sync](https://chrome-stats.com/d/tab-focus-sync)
- [Window Saver](https://chrome-stats.com/d/window-saver) — 145 users, 3.86 / 5

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