shortcuts internet exsplorer/mozilla firefox

This is a list of keyboard shortcuts in Mozilla Firefox. If you have enabled Emacs-style text editing shortcuts in GNOME, they will also work in Firefox. When an Emacs text editing shortcut conflicts with the default shortcuts (as occurs with Ctrl+K), the Emacs shortcut will take preference if focus is inside a textbox (which would include the location bar and search bar). In such cases you should use the alternate keyboard shortcut if one is listed below.

Command	Shortcut
Back	Altcommand+Left Arrow BackspaceCtrlcommand+[ Delete
Forward	Altcommand+Right Arrow Shift+BackspaceCtrlcommand+] Shift+Delete
Home	AltOpt+Home
Open File	Ctrlcommand+O
Reload	F5 Ctrlcommand+R
Reload (override cache)	Ctrl+F5 Ctrlcommand+Shift+R
Stop	command+. Esc
Current Page
Go to Bottom of Page	End
Go to Top of Page	Home
Move to Next Frame	F6
Move to Previous Frame	Shift+F6
Page info	Ctrlcommand+I
Page Source	Ctrlcommand+U
Print	Ctrlcommand+P
Save Page As	Ctrlcommand+S
Zoom in	Ctrlcommand++
Zoom out	Ctrlcommand+-
Zoom reset	Ctrlcommand+0
editing
Copy	Ctrlcommand+C
Cut	Ctrlcommand+X
Delete	Delete
Paste	Ctrlcommand+V
Redo	Ctrlcommand+YShift+Z
Select All	Ctrlcommand+A
Undo	Ctrlcommand+Z
Search
Find	Ctrlcommand+F
Find Again	F3 Ctrlcommand+G
Find As You Type Link	'
Find As You Type Text	/
Find Previous	Shift+F3
Web search	Ctrlcommand+K Ctrl+EJ
Windows & Tabs (see Tabbed browsing )
Close Tab	Ctrlcommand+W Ctrl+F4
Close Window	Ctrlcommand+Shift+W Alt+F4
Move Tab Left (when tab is focused)	Ctrlcommand+Left Arrow Ctrlcommand+Up Arrow
Move Tab Right (when tab is focused)	Ctrlcommand+Right Arrow Ctrlcommand+Down Arrow
Move Tab to Beginning (when tab is focused)	Ctrlcommand+Home
Move Tab to End (when tab is focused)	Ctrlcommand+End
New Tab	Ctrlcommand+T
New Window	Ctrlcommand+N
Next Tab	Ctrl+Tab command+Opt+Right Arrow command+} Ctrl+Page Down
Open Address in New Tab (from Location Bar or Search Bar)	AltOpt+EnterReturn
Previous Tab	CtrlCtrl+Shift+Tab command+Opt+Left Arrow command+{ Ctrl+Page Up
Undo Close Tab	Ctrlcommand+Shift+T
Undo Close Window	Ctrlcommand+Shift+N
Select Tab (1 to 8)	CtrlAltcommand+(1 to 8)
Select Last Tab	CtrlAltcommand+9
Tools
Bookmark All Tabs	Ctrlcommand+Shift+D
Bookmark This Page	Ctrlcommand+D
Bookmars	Ctrlcommand+B Ctrl+I
Library window	Ctrlcommand+Shift+BO
Caret browsing	F7
downloads	Ctrlcommand+JShift+Y
History	Ctrl+Hcommand+Shift+H
Toggle private browsing	Ctrlcommand+Shift+P
Clear recent history	Ctrlcommand+Shift+Del
Error Console	Ctrlcommand+Shift+J
Miscellaneous
Complete .com Address	Ctrlcommand+EnterReturn
Complete .net Address	Shift+EnterReturn
Complete .org Address	Ctrlcommand+Shift+EnterReturn
Delete Selected Autocomplete Entry	Shift+Del
Toggle Full Screen	(Firefox 3.6) command+Shift+FF11
Help	F1command+?
Toggle Menu Toolbar (when hidden)	ALT F10
Select Location Bar	Alt+D F6 Ctrlcommand+L
Select or Manage Search Engines (when Search Bar is focused)	AltOpt+Up Arrow AltOpt+Down Arrow F4
Media shortcuts(OGG/Theora Videos Only)
Toggle Play / Pause	Space
Decrease volume	Arrow down
Increase volume	Arrow up
Mute audio	Ctrl+Down Arrowcommand+Down Arrow
Unmute audio	Ctrl+Arrow upcommand+Up Arrow
Seek back 15 seconds	Left Arrow
Seek back 10 %	Ctrl+Left Arrowcommand+Left Arrow
Seek forward 15 seconds	Right Arrow
Seek forward 10 %	Ctrl+Right Arrowcommand+Right Arrow
Seek to the beginning	Home
Seek to the end	End

Sumber : http://support.mozilla.com/en-US/kb/keyboard%20shortcuts