Window.getAttention() - Web APIs
the window.getattention() method attempts to get the user's attention.
... syntax window.getattention(); notes on windows, the taskbar button for the window flashes, if this hasn't been disabled by the user.
...getattention will still work when used from chrome in a gecko application.

nsIDOMChromeWindow
inherits from: nsisupports last changed in gecko 2.0 (firefox 4 / thunderbird 3.3 / seamonkey 2.1) method overview void beginwindowmove(in nsidomevent mousedownevent); void getattention(); void getattentionwithcyclecount(in long acyclecount); void maximize(); void minimize(); void notifydefaultbuttonloaded(in nsidomelement defaultbutton); void restore(); void setcursor(in domstring cursor); attributes attribute type description browserdomwindow nsibrowserdomwindow the related nsibrowserdomwindow instance which provides access to yet another layer of utility functions by chrome script.
... getattention() void getattention(); parameters none.
... getattentionwithcyclecount() same as getattention method excepting that this can specify the maximum number of times to animate the window per system conventions.
...And 2 more matches

nsIDownloadManagerUI
1.0 66 introduced gecko 1.9 inherits from: nsisupports last changed in gecko 1.9 (firefox 3) method overview void getattention(); void show([optional] in nsiinterfacerequestor awindowcontext, [optional] in unsigned long aid, [optional] in short areason); attributes attribute type description visible boolean true if the download manager ui is visible; otherwise false.
... methods getattention() calls attention to the download manager's user interface if it's already open.
... void getattention(); parameters none.

Index - Web APIs
4923 window.getattention() api, dom, dom reference, gecko, method, reference the window.getattention() method attempts to get the user's attention.

Window - Web APIs
window.getattention() flashes the application icon.