I neglected to blog this when it happened, but at some point about a week and a half or two weeks ago, Firefox decided to delete all of my bookmarks.
Except for that little folder with all the links to my engagement ring hopefuls.
(Yes, at some point I was thinking about the prospect of such things, so I created a folder with the specific type of ring I want, since it's not the norm. And Firefox was kind enough to keep this folder. Awesome.)