# About Sync

> Show information about Firefox Sync. This addon shows information about your Sync account, including showing all server data for your account. It is designed primarily for Sync developers or advanced users.

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

## Overview

- **ID:** `about-sync`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Mark Hammond
- **Category:** other
- **Daily users:** 2,900
- **Weekly downloads:** 26
- **Rating:** 4.71 / 5 (21 ratings)
- **Version:** 0.25.20250227.104629
- **Last updated:** 2025-02-27
- **First published:** 2016-03-30
- **Size:** 208 KB
- **Data as of:** 2026-09-05
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/about-sync/)
- **Website:** [https://github.com/mozilla-extensions/aboutsync](https://github.com/mozilla-extensions/aboutsync)

## Description

About Sync is a Chrome extension designed for Firefox Sync developers and advanced users who want to access detailed information about their Sync account. Once installed, users can simply navigate to `about:sync` in the address bar to view all server data linked to their Sync account. The extension provides valuable insights into synchronization details, facilitating better understanding and troubleshooting.

The extension is open-source, with its code hosted on GitHub, encouraging developers to contribute via pull requests. About Sync empowers advanced users to manage and analyze Firefox Sync data efficiently through a clear and accessible interface.

## Rankings

- #1,728 — Overall
- #266 — Other extensions
- #3 — sync
- #64 — include
- #127 — development
- #128 — show

## Permissions and access

### Permissions

- `mozillaAddons`

## Safety

- **Risk impact:** Very low risk impact
- **Risk likelihood:** Low risk likelihood

### Analysis details

- 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).

## Review summary

Users appreciate About Sync for its ability to reset sync history quickly and restore synced tabs, making it easier to manage sync issues across browsers, including private sync servers. However, some find it not very user-friendly, feeling it's more targeted at developers. There is a desire for features like reporting sync failures to Mozilla and support for Firefox on Android.

### Pros

- Helps reset sync history easily with one click
- Useful for restoring synced tabs
- Assists in identifying sync issues between browsers
- Facilitates checking of private sync servers

### Cons

- Not user-friendly, appears designed more for developers
- Lacks an option to report sync failures directly to Mozilla
- No support for Firefox for Android

## Similar extensions and apps

- [Sync](https://chrome-stats.com/d/sync_ext) — 12 users
- [Sync Everything](https://chrome-stats.com/d/sync-everything) — 8 users
- [Stream Sync](https://chrome-stats.com/d/stream-sync) — 1 users
- [Sync View](https://chrome-stats.com/d/sync-view) — 1 users
- [Tab Sync Lite](https://chrome-stats.com/d/tab-sync-lite) — 19 users, 5.00 / 5
- [KeepSync](https://chrome-stats.com/d/keepsync) — 5 users
- [CodeforcesSync](https://chrome-stats.com/d/codeforcessync) — 2 users
- [GitSync](https://chrome-stats.com/d/gitsync) — 1 users
- [What to Watch Sync](https://chrome-stats.com/d/what-to-watch-sync)
- [TabSync Pro](https://chrome-stats.com/d/tabsync-pro) — 130 users, 4.63 / 5
- [Synced Tab Groups](https://chrome-stats.com/d/synced-tab-groups) — 45 users
- [Quarchive](https://chrome-stats.com/d/quarchive) — 3 users

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