The mega.co.nz website doesn’t offer a sync client for Linux desktops however, MEGAsync for Linux showed up on their servers recently (without any official announcement about this). The new MEGAsync for Linux is written in Qt, is available for Ubuntu and derivatives (14.04, 12.04 as well as for two Ubuntu versions that aren’t supported by Canonical any more: 13.10 and 12.10), Debian (6 and 7), Fedora (19 and 20) and openSUSE (12.2, 12.3 and 13.1) and it consists of a tray/appindicator application as well as an optional Nautilus extension.