MTP Playlist Editor (PlayEdit) is a gtk gui based on libmtp for creating and editing playlists on an MTP (Media Transfer Protocol) device. PlayEdit is designed primarily for the Sansa View, but may work for other MTP devices supported by libmtp.
Minibrowser API support for Winamp 5.22+, which minibrowser API is "gone for good" with "Now Playing 2.x".
With this plugin, your good-old-plugins with minibrowser should work fine.