I'm involved in the Camino project for Mozilla. It's a pretty face for the Gecko engine basically. Recently the whole Mozilla project was transferred to a new foundation. Mike Pinkerton was moved to a different job at AOL but he's got the nightly builds going again and I've been testing out David Haas' rewrite of the bookmarks manager. Looks good so far. It includes some novel features that I think might be cool, like a top-ten list, and Address Book integration. Could you manage all your bookmarks in the Address Book?