NOTE: Backup your Favorites and Bookmarks before trying any of the programs or services mentioned in this guide.
I’ve been getting quite a few requests from readers asking how they can share bookmarks between different browsers installed on the same PC. A separate but related question is how to share bookmarks between different PCs
Now most browsers including Firefox and Opera, offer an installation option of importing Internet Explorer bookmarks. That’s simple enough.
The real problem starts when you bookmark new sites in different browsers and you want these to be available in all browsers. There are several ways of doing this:
The first is to use a free utility called BookmarkBridge  that can sync all bookmarks across all browsers installed on your PC. It automatically recognizes and handles most of the major browsers and will synchronize all bookmarks across all browsers with the click of a single button.