Firefox Browser Add-ons
  • Extensions
  • Themes
    • for Firefox
    • Dictionaries & Language Packs
    • Other Browser Sites
    • Add-ons for Android
Log in
Preview of MySync

MySync by ABSONS Technologies

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

Available on Firefox for Android™Available on Firefox for Android™
0 (0 reviews)0 (0 reviews)
Download Firefox and get the extension
Download file
Scan the QR code to open this extension in Firefox for Android

Extension Metadata

About this extension
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)
Rated 0 by 0 reviewers
Log in to rate this extension
There are no ratings yet

Star rating saved

5
0
4
0
3
0
2
0
1
0
No reviews yet
Permissions and data

Required permissions:

  • Read and modify bookmarks
  • Download files and read and modify the browser’s download history
  • Access browsing history
  • Access browser tabs

Optional permissions:

  • Access your data for all web sites

Required data collection, according to the developer:

  • Bookmarks
  • Browsing activity
Learn more
More information
Add-on Links
  • Homepage
  • Support site
  • Support Email
  • Copy add-on ID
Version
1.2.0
Size
219.33 kB
Last updated
7 days ago (26 Aug 2026)
Related Categories
  • Privacy & Security
  • Bookmarks
  • Tabs
Licence
GNU General Public Licence v3.0 only
Privacy Policy
Read the privacy policy for this add-on
Version History
  • See all versions
Tags
  • privacy
Add to collection
Report this add-on
Go to Mozilla's homepage

Add-ons

  • About
  • Firefox Add-ons Blog
  • Extension Workshop
  • Developer Hub
  • Developer Policies
  • Community Blog
  • Forum
  • Report a bug
  • Review Guide

Download

  • Download Firefox
  • Windows
  • macOS
  • iOS
  • Android
  • Linux
  • All

Latest Builds

  • Nightly
  • Beta

Firefox for Business

  • Enterprise

Community

  • Connect
  • Contribute
  • Developer

Follow

  • Instagram
  • YouTube
  • TikTok
  • Bluesky
  • Podcast
  • Privacy
  • Cookies
  • Legal

Except where otherwise noted, content on this site is licensed under the Creative Commons Attribution Share-Alike Licence v3.0 or any later version. Android is a trademark of Google LLC.