On Ubuntu 16.04.2 LTS 64-bit the Steam tray icon on the upper right task bar not working as it should. I tried installing steam as a Debian package and through apt but the issue still persists. Also this issue was not present in 14.04.5 LTS 64-bit. What may be the cause of this(missing libraries)?
~$ steam
Running Steam on ubuntu 16.04 64-bit
STEAM_RUNTIME is enabled automatically
Installing breakpad exception handler for appid(steam)/version(1484790260)
Installing breakpad exception handler for appid(steam)/version(1484790260)
Gtk-Message: Failed to load module "overlay-scrollbar"
Gtk-Message: Failed to load module "gail"
Gtk-Message: Failed to load module "atk-bridge"
Gtk-Message: Failed to load module "unity-gtk-module"
steam? – M. Becerra Feb 24 '17 at 13:55