Keyboard shortcut is a combination of keyboard keys are in the press together to perform a particular function.

If you are one of facebookers, turned out to facebook also has some keyboard shortcut for mozilla firefox browser, Internet Explorer and Google Chrome.

First you need to login on your facebook facebook to use the keyboard shortcuts below.

Keyboard shortcuts for Mozilla Firefox facebook

shift + alt + 0 = Center for assistance
shift + alt + 1 = Home
alt + shift + 2 = Profile
alt + shift + 3 = Request friendship
alt + shift + 4 = Message
shift + alt + 5 = Notification
shift + alt + 6 = Edit account
shift + alt + 7 = Privacy Settings
shift + alt + 8 = Fan facebook
shift + alt + 9 = Statement of rights and responsibilities
shift + alt + m = Create a new message
alt + shift +? or Shift + Alt + / = The cursor is on the search field

Keyboard shortcuts for Internet Explorer facebook
alt + 0 then Enter = help center
alt + 1 then Enter = Home
alt + 2 then Enter = Profile
alt + 3 then Enter = Request friendship
alt + 4 then Enter = Message
alt + 5 then Enter = Notification
alt + 6 then Enter = Edit account
alt + 7 then Enter = Settings privacy
alt + 8 then Enter = Fan facebook
alt + 9 then Enter = Statement of rights and responsibilities
alt + m and then Enter = Create a new message
alt +? then enter or alt + / and then Enter = The cursor is in the search field

Facebook keyboard shortcuts for Google Chrome
alt + 0 = Center for assistance
alt + 1 = Home
alt + 2 = Profile
alt + 3 = Request friendship
alt + 4 = Message
alt + 5 = Notification
alt + 6 = Edit account
alt + 7 = Privacy Settings
alt + 8 = Fan facebook
alt + 9 = Statement of rights and responsibilities
alt + m = Create a new message
alt +? or alt + / = The cursor is on the search field

Good luck
link source info here