There is an updated version of the dropbox-plugin for Loki at https://code.launchpad.net/~elementary-apps/pantheon-files/pantheon-files-plugin-dropbox but it needs testing. If there is a third-party plugin that works for you that is fine.
There is an updated version of the dropbox-plugin for Loki at https:/ /code.launchpad .net/~elementar y-apps/ pantheon- files/pantheon- files-plugin- dropbox but it needs testing. If there is a third-party plugin that works for you that is fine.