In a spring cleaning effort we have removed support for Dropbox, Google Drive and Azure in Cyberduck for the upcoming 4.3 release. This allows us to focus on improving support for S3 and open cloud storage standards (speak Open Stack Swift) and the long supported FTP/SFTP and WebDAV protocols.
We reserve the option to reintroduce support for Azure (#6521) and Google Drive (#6976) when time allows and user demand is significant.
Update The latest snapshot builds for Mac & Windows reintroduce support for Azure Storage.