Interesting comment. I don’t use the built-in bookmarks in the browsers, but have URLMP be the keeper of all the bookmarks, not matter what browser I’m using. Whenever I got to a site I want to keep, I just use the “add bookmark” function (or shortcut command-K) and it saves it just fine.
Sorry it doesn’t work for you, but I for one am glad that Alco Blom built a 64-bit version.