If any single feature in the new Firefox 4 could be described as “killer,” it’s Firefox Sync. Originally launched as a buggy add-on called Mozilla Weave several years ago, it now comes baked directly into Firefox and with all its creases ironed out. It will synchronize your bookmarks, passwords, preferences, history, and tabs across not only multiple computers, but your Android and Maemo phones and tablets, too.
http://download.cnet.com/8301-2007_4-20047008-12.html
