This is a Cinnamon applet, which lets you access your places and bookmarks through an icon in the cinnamon panel.
1) Copy the folder "email@example.com" to "~/.local/share/cinnamon/applets/". 2) Enable the applet in cinnamon settings. (Eventually you have to restart cinnamon: Press Alt+F2, type 'r' and enter)
The icon, label and menu items icon size can be modified from this applet settings found on its context menu.