Favekeeper will check your windows settings to find out what browsers are installed (currently Favekeeper supports IE, Firefox and Chrome), grad their favorites and merge them via cloud.
Favekeeper will always merge your favorites from different browsers and computers.
Your favorites only will be deleted if you delete it from your browsers. So you can use your browser to modify your favorites as before, and Favekeeper will apply the results to all your browsers and computers.
If you want to restore the deleted favorite links, you can right click the Favekeeper icon and choose the recycle bin from the menu.
Limitations: Must create an account with Favekeeper.