xBrowserSync

Browser syncing as it should be: secure, anonymous and free! Sync bookmarks across your browsers and devices, no sign up required.

xBrowserSync: Secure, Anonymous & Free Browser Syncing Add-On

xBrowserSync is a Firefox add-on for secure, anonymous, and cost-free browser data syncing. It allows users to seamlessly sync bookmarks across multiple devices and browsers. No personal data is collected or sign-up required. It employs military-grade encryption to ensure data safety. Adding descriptions and tags to bookmarks, intuitive search interface, backup, and restore functionalities, compatibility with native bookmarking features, and availability of a mobile app enrich the user experience.

Add-on stats

Manifest V2
Daily users: 4,099
-4
Version: 1.5.2 (Last updated: 2021-12-28)
Version code: 5001700
Creation date: 2018-10-02
Weekly download count: 175
Firefox on Android: No
Permissions:
  • activeTab
  • alarms
  • bookmarks
  • http://*/
  • https://*/
  • notifications
  • storage
  • tabs
  • unlimitedStorage
Size: 1.97M
Full description: See detailed description

Other platforms

xBrowserSync (v1.5.2)
30,000 3.87 (142)
Not available on Android
Not available on Edge

User reviews

These summaries are automatically generated weekly using AI based on recent user reviews. Firefox Browser Add-ons does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Easy to use for bookmark synchronization across different browsers
  • Secure and privacy-focused
  • Works well for keeping bookmarks, history, and tabs synced seamlessly
  • Helpful for organizing multiple sets of bookmarks
  • Low reliance on Firefox/Mozilla's servers
Cons
  • Frequent syncing issues and overwriting of bookmarks
  • Not well maintained, with long periods between updates
  • Bugs causing loss or chaos in bookmark organization
  • Performance issues and browser unresponsiveness during operation
  • Requires disabling native browser sync features for optimal use
Most mentioned
  • Syncing issues leading to overwriting bookmarks
  • Not well maintained with long gaps between updates
  • User-friendly organization of bookmarks across platforms
  • Bugs that affect bookmarks, especially with Firefox's native features
  • Performance issues making the extension less reliable
User reviews
by thecodeofdaniel, 2025-01-25

I used to love this extension. It was BY FAR the best solution for using multiple browsers to sync over all devices. In the last six months or so, it has quit working as well. Now, it is impossible to organize because it keeps re-syncing and overwriting changes made on the browser. In my Linux installations, I now get an error message for which the meaning is impossible to track down and it doesn't sync at all.
by Michael, 2024-12-06

by igorlogius, 2024-08-04
View all user reviews

Add-on safety

Risk impact

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

Risk impact analysis details
  • Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
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Risk likelihood

We don't have sufficient data to confidently determine the risk likelihood of xBrowserSync. Use it at your own risk.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
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