In Pictures: 9 essential Internet Explorer 10 add-ons

ADD:ON: Xmarks

WHAT IT DOES: Synchronizes and backs up bookmarks

With the Xmarks add-on installed, your bookmarks will be automatically backed up to the cloud (on the Xmarks company’s servers), and they’ll be synced to your other computers or mobile devices that have browsers with Xmarks installed on them, too. (There are versions of Xmarks also for Chrome, Firefox and Opera, so your bookmarks can be cross-synced among any of these other browsers you may be using.) It’s a little surprising that Microsoft doesn’t offer such syncing directly for IE through its own service -- Google and Mozilla do for their browsers -- but they do through Windows 8 as a function for that overall OS’ ecosystem.