I would love to have a bookmarks file that is text, not SQLite, so I can use rsync or git to keep a master copy on a server and have all my computers share it.
Same with a passwords file, except make it encrypted with a master key.
Are you worried about privacy? Are bookmarks an attack vector of any kind? Or am I just naturally paranoid about these things?
I've always been wary of who can see my bookmarks, but not for any particular reason. It kind of reminds me how US libraries are vigilant to shield your checkout history from government searches.[0]
Yes, I care about privacy. That's why I want my shared bookmarks to live on my own server, not on delicious or Google Drive or whatever.
If they are encrypted before they leave the client so much the better. I would consider that a hard requirement for the passwords, so might as well do it for the bookmarks too.
Same with a passwords file, except make it encrypted with a master key.