This extension called Foxmarks Bookmark Synchronizer... which uploads ur bookmarks on a live server and anytime you open ur browser it automatically syncs your bookmark files with server and in case there are extra bookmerks on local pc then it gives you an option of :
- Keeping the local ones
- Overwite with the server saved ones
- OR keep both!! (5 stars for usability)
I found it simpler and more user friendly than the Google browser sync.. well people would beg to differ...
But theres only one way to find out... Just download it and temme...