Thanks for checking Safari.

Technically it should be possible to fetch the page and parse the title tag. It's hard to know when to do that if there's an editable URL field. With a browser extension and a "?add=URL" parameter (see the question from g4k) it would work better.

I'm not familiar with remoteStorage.js. Dropbox I chose simply because it's popular, many people already have an account and trust them, so it's a low barrier to use something that uses Dropbox.