sprinkles or gummi bears?

Meh. Stupid segmentation faults. All I want to do (is have some fun) and call the nsINotificationAreaListener callback, and instead of sun coming up over Santa Monica Boulevard I get repeated punches to the groin. The joy of replacing dozens of lines of WinAPI guff with a single g_signal_connect was short-lived. (It can be called immidiately after entering ShowIcon but when the pointer is stored away and then retrieved in the callback function, similar to the Windows case, there be 'splosions.)

By the by, GtkStatusIcon is a GObject and not a GtkWidget descendant, which means it doesn't handle events like widgets do. So, no double-clicks for you!