BrowSync Firefox

BrowSync

Keep your browser bookmarks and state in sync across macOS devices.

Features & Capabilities

BrowSync is a macOS native app that makes Safari, Chrome, FireFox work together. It unifies your browsing experience through a local WebSocket daemon, browser extensions, intelligent URL routing rules, and cross-browser data synchronization.

The BrowSync extension connects your browser with the BrowSync desktop app to locally sync bookmarks, cookies, tabs, and site storage across browsers, and supports rule-based browser routing. All data is processed locally on your device with no cloud upload.

https://browsync.ct106.com

User Growth & Download Statistics

Manifest V3 Add-on
By:
Tao Chen
Daily users:
5 1
Rating:
5.00
(1)
Version:
1.2.0 Last updated: 2026-09-05
Version code:
6463374
Creation date:
2026-06-20
Firefox add-on GUID:
extension@browsync.app
Firefox add-on numeric ID:
3028366
Weekly download count:
1
Firefox on Android:
No
Risk:
Low risk impact High risk likelihood
Permissions:
Size:
139.28KB
Email:
ch*****@gmail.com
URLs:
Website
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-09-05
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:
Tao Chen
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/brow-sync/
Email:
ch*****@gmail.com
Website:
https://github.com/chentao1006/browsync

Permission Change History

2026-09-05: Version 1.1.22 → 1.2.0
Add Permissions: activeTab
Remove Permissions: tabs cookies scripting
Remove Host permissions: <all_urls>
Add Optional permissions: tabs cookies scripting
Add Optional host permissions: <all_urls>

User Reviews

I've never had an app before that's allowed me to sync up Brave (Chromium), Safari, AND Firefox together but this one does. 3 browsers using totally different engines still able to be synced together, that's awesome. I was able to make a "Sync Bookmarks Folder" for each of my browsers and the bookmarks sync together pretty well between the 3 browsers. I initially had privacy/security concerns that I brought up to the developer regarding permissions for this app requesting all website access - way too broad for my use case (I only want to sync Bookmarks; not Sessions, not Cookies, etc.) and the developer responded quickly saying he appreciated my feedback and said he will implement changes immediately in the next update to address my concerns about permissions being too broad and make it so the extension only requests Bookmarks access if that's all the user wants. I appreciate this developer's quick response to feedback and making changes to respect user security and privacy. With those changes to permissions made, I highly recommend this app simply just to Sync your Bookmarks, but it is also more powerful than that if you want to sync other aspects of the browser experience as well!
by Pr*****, 2026-09-03
View all user reviews ›

Is BrowSync 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.

BrowSync requires very minimum permissions.

Risk impact analysis details
  • Medium Access to bookmarks may provide insights into user preferences and interests but generally carries low risk.
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.

BrowSync 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.
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  • Medium **** ********* *** ***** ** *** **** * ******* *** ********** *** *** ** ****** ** *****
  • Good **** ********* *** **** **** *******
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