LinkSync is a utility that monitors the addition of links to an active browser and can sync them to multiple browsers based on user configuration in real-time. When you have a browser open while the sync process is running and you save a link to your favorites/bookmarks , LinkSync will immediately "catch" this change and update the favorites of the OTHER browser(s) accordingly.

Supports:
IE/Maxthon/Avant Detection
Firefox
Mozilla
K-Meleon
Netscape 8
Opera 8

Limitations: Requires .Net Framework installed.