Configure Firefox To Display Warning Window When Closing Single Tab

surgeprice.display("ihaveapc.com_336x280_abovepost"); Mozilla Firefox has a pretty cool feature that shows a warning box when trying to close a Firefox window with multiple tabs open.Also it is handy when there are multiple downloads in progress and want them to finish without interruption. To set it, go to Tools > Options > Tabs and enable the tick mark next to “Warn me when closing...