MySync Firefox

MySync

Take back control of your browsing. Seamlessly sync your open tabs, bookmarks and browsing history across devices using a secure, self-hosted backend.

Features & Capabilities

MySync is a lightweight, privacy-first browser extension that syncs your open tabs, bookmarks, and browsing history across all your devices and browsers in real-time. Built to be completely self-hosted, it ensures that your browsing data never touches third-party servers. You are in full control of your data from end to end.

Key Features:

  • 🔄 Real-Time Cross-Browser Sync: Whether you use Chrome on your desktop, Firefox on your laptop, or a mix of both, MySync keeps your active tabs, bookmarks, and browsing history perfectly mirrored in real-time.
  • 🛡 100% Self-Hosted & Private: No proprietary clouds, no tracking, and no subscriptions. Run the open-source lightweight Go backend on your own hardware or VPS, ensuring nobody has access to your browsing history except you.
  • Lightning Fast Conflict Resolution Powered by WebSockets/SSE: With polling fallbacks, MySync uses optimistic locking and last-write-wins conflict resolution. It handles sudden network drops or rapid tab changes without breaking a sweat.
  • 🔑 Simple, Passwordless Pairing: No need to manage complex accounts or passwords. Connect a new browser instantly using a 6-character device pairing code, a CLI-generated invite token, or a secure magic link.
  • 💻 Built-in Device Management: Easily manage all your connected browsers directly from the extension's options page. Rename devices to easily identify them or instantly revoke access to an old laptop or phone.
How it works:
  1. Host the lightweight MySync Go server (recommended) or you can use backend hosted on our server (https://mysync.absons.net).
  2. Install the MySync extension on your browsers.
  3. Generate a one-time invite token from your server to pair your first device or use pair by email to get a magic link.
  4. Add your other devices seamlessly using simple 6-digit pairing codes!
(Note: MySync requires the companion self-hosted server to function. You can find the full setup instructions and open-source server code at the project's repository: https://github.com/absonsnet/mysync)

User Growth & Download Statistics

Manifest V3 Add-on
By:
ABSONS Technologies
Daily users:
2 1
Version:
1.2.0 Last updated: 2026-08-29
Version code:
6438916
Creation date:
2026-08-24
Firefox add-on GUID:
tabsync@mysync.com
Firefox add-on numeric ID:
3059393
Weekly download count:
2
Firefox on Android:
Yes
Risk:
High risk impact High risk likelihood
Permissions:
Host permissions:
  • http://localhost/*
  • https://*/*
  • http://*/*
Size:
219.33KB
Email:
in*****@absons.net
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-09-07
Compare stats and ranking:

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.
Developed by:
ABSONS Technologies
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/mysync/
Email:
in*****@absons.net
Website:
https://absons.net

Is MySync Safe?

Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

MySync requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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  • Low ******* ****** ** *** ********* ******** *********
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

MySync is recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details
  • High This extension was recently updated in the past month. New updates may not be stable or safe.
  • High **** ********* *** ******** ****** *** ********** *** *** ** ****** ** *****
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