Zinkmo is a freeware application for Windows that allows you to synchronize bookmarks/favorites between Internet Explorer and Mozilla Firefox across computers and upload them to an online server. You can then mark your bookmarks as public/ private and view them online from any web browser. There’s also a built in Duplicate checker that ensures the uniqueness of the favorites in your collection. ( >via)

Here are the main features of this application:

-Synchronize bookmarks across computers
-Synchronize unlimited favorites
-Synchronize across IE and Firefox browsers
-Small or no footprint
-Online Link Manager
-Auto Sync
-Duplicate Link Checker
-Link Verification

Download from here