Mozilla's new project called Weave is an exciting new add-on to Mozilla's popular browser Firefox. While in its infancy, the service plans to be a way for users to save and access their personal browsing information across multiple machines. It's a little bit like Google's Web history, del.icio.us, and a Web password saver all wrapped up into one.
Some use cases for Weave (as listed by Mozilla) include: accessing your history and bookmarks from your home version of Firefox on your mobile Firefox browser, shared/collaborative bookmarking, and personalization tools to let you log in and sync up your home bookmarks, plug-ins and passwords on another machine; all things that are typically a pain unless you're technically proficient or know how to plan ahead.
Weave version 0.1, which Mozilla's Labs team rolled out a few weeks back, lays the foundation for Web developers to add Weave integration into their services. It's limited to some very basic back-end tools for developers, although version 0.2 which is planned for "early 2008" is adding a full-blown API, and a user interface complete with settings to let you control how much of your information Weave can access.
Currently, users who want to take advantage of the Weave plug-in must be running the latest beta of Firefox 3, Mozilla's upcoming follow-up to the current version 2.0, which you can grab here.