The Mozilla Weave development team has released version 0.4 of the Firefox add-on that allows users to synchronize data across multiple web browsers. It is basically a storage for user data on the Internet so that Firefox users can access the same bookmarks, passwords, preferences, browsing history and tabs on different computers and mobile devices.
Mozilla Weave is currently an experimental add-on that is only working with versions of Firefox 3.5 which limits the reach of the add-on quite a bit. The data transfer is encrypted which ensures data integrity and safety during the transfer and on the storage server.

Several new features have been added to Mozilla Weave 0.4 including the ability to synchronize preferences, identity support that includes automatic logins and the use of OpenID logins, better support for add-ons using Weave, performance improvements during startup and opening new windows and support for the Fennec which is also known as the mobile Firefox browser.
You can check out our first review of Mozilla Weave dating back to 2008 if you would like to receive additional information. The announcement page contains additional information and the download link to Mozilla Weave 0.4.
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So this is bit better than Xmarks, right? If I understood correctly..
Good…!!!
Just installed and used weave and it made a mess of my bookmarks. It didn’t syn the folder structure and bookmark positions properly and while I was trying to fix that on one computer the other computer started duplicating its entries. Total waste of my time.