Opening and Closing Windows and Sidebars

The shortcuts found in Table B-7 let you open or (if they're already open) close various Firefox windows and sidebars.

Table B-7: Keyboard Shortcuts for Opening and Closing

Action	Windows	Mac
Open a new browser window	Ctrl+N	+N
Open a new tab	Ctrl+T	+T
Open/Close the Bookmarks Sidebar	Ctrl+B or Ctrl+I	+B
Open/Close the History Sidebar	Ctrl+H	+Shift+H
Open the Download Manager	Ctrl+J	+J
Open the Help window	F1	None
Open the Page Info window (advanced)	None	+I
Open the Page Source window (advanced)	Ctrl+U	+U
Close the selected tab	Ctrl+W	+W
Close the window	Ctrl+W (if one tab is open)	+W (if one tab is open)
	Ctrl+Shift+W (if two or more tabs are open)	+Shift+W (if two or more tabs are open)
	Alt+F4 (always)	Option+F4 (always)