On some Linux desktop environments the Cubbit Tray Icon may not appear in the taskbar/panel.
To fix this issue you first need to know what desktop environment you are currently using. If you don’t know it just type this command in your Terminal window:
$ echo $XDG_CURRENT_DESKTOP
Then follow the steps under the appropriate environment below!
Gnome
With the Gnome desktop environment you need to install the AppIndicator extension with the following command:
$ sudo apt install gnome-shell-extension-appindicator
Then enable KStatusNotifierItem/AppIndicator Support in the Extension Preferences.
To open the Gnome Extension Preferences simply type:
$ gnome-shell-extension-prefs
XFCE
If you have the XFCE desktop environment you need the StatusNotifier plugin.
Install it with:
$ sudo apt install xfce4-statusnotifier-plugin
Then enable it by going in Settings and Panel, then open the Items tab and add the Status Notifier Plugin.
Cinnamon
If you have the Cinnamon desktop environment you need to open Settings/System Settings and press:
Enable support for indicator (Requires Cinnamon restart)
For help on how to run Cubbit at startup on Linux, visit this page.