I wish for a more open smartphone ecosystem and better tools for privacy.
[1] https://addons.mozilla.org/en-US/firefox/addon/xmarks-sync/
If you don't care about sync / mobile then just use a local .html file. Maybe this could be Dropbox'd around but there's that 3rd party problem!
Sure, just a way to keep bookmarks synced when I might switch systems/browsers without having to manually export-import them every time.