Mozilla's homegrown tool for synchronizing Firefox across computers and devices graduates to beta and introduces incremental syncing and a more streamlined, less obtrusive experience. Mozilla Weave 1.0 beta 1 looks and feels far more polished than its predecessors.
It does away with the "about:weave" access to the add-on's configuration pane, better handles Firefox preference integration when syncing for the first time, adds an automatic on-demand sync for when changes are detected and should more comprehensively sync history. This first beta also fixes a problem that the previous Weave v0.8 had when connecting via Fennec 1.0 beta 5.
However, Weave still has numerous problems. It conflicts with many add-ons, including AdBlock Plus, one of Firefox's most popular. The new incremental sync transfers data in chunks, so you can still use the browser, but it also prioritizes the first sync based on "interestingness." This amounts to syncing the data that you use most first, but it means that an initial sync could take hours depending on how much data you have. Weave is available for Windows, Mac, and Linux users.