Syncing passwords and bookmarks is old hat. Mozilla Weave, a Mozilla Labs project is a tool designed to let you sync everything down to your tabs and do it securely. If you’re one of the many “road warriors” depending on Mozilla browsers, Weave is your ticket to a seamless Firefox experience across all your machines.
If you only have one machine where you use Firefox to browse the Web, you probably don’t have much need for Weave. But if you’re using Firefox at home and at work, or any other scenario with multiple machines, you’ll definitely want to take a look at the latest iteration of Mozilla Weave. The project recently released Weave Sync 0.7 for Firefox 3.5 and later (including the 3.7a1 release).