"Social" bookmarks tab in Browser (Feature #1175)
URLs from Contacts, Calendar Events and appropriate other DB8 kinds (for example, RSS readers, Pocket/Read It Later or Evernote) should be displayed in a separate tab between bookmarks and history.
For Contacts, the bookmark title should be the contact givenName, middleName and familyName subfields, concatenated (or nickname if they're all blank). If the contact has more than one URL in the urls arrays, each should be a separate item.
For Calendar Events, the bookmark title should be the subject field, and the url should be the url field.