First thing, the Keyboard short cuts vary based on the browser you are using.
OS Windows :
Chrome and IE : Alt + Shift + ShortCut key
Firefox: Alt + ShortCut Key
OS Osx:
Firefox : Function + Ctrl + ShortCut Key
Other : Option + Ctrl + ShortCut Key
ShortCut Keys :
1 Home
2 Profile page
3 Friend requests
4 Messages
5 Notifications
6 Account Settings
7 Privacy Settings
8 Facebook page
9 Facebook Statements and Rights agreement
0 Facebook help center
M Open a new message *
? Facebook Search
In case of Internet Explorer, You have to press Enter after pressing the suitable combination of keys.
OS Windows :
Chrome and IE : Alt + Shift + ShortCut key
Firefox: Alt + ShortCut Key
OS Osx:
Firefox : Function + Ctrl + ShortCut Key
Other : Option + Ctrl + ShortCut Key
ShortCut Keys :
1 Home
2 Profile page
3 Friend requests
4 Messages
5 Notifications
6 Account Settings
7 Privacy Settings
8 Facebook page
9 Facebook Statements and Rights agreement
0 Facebook help center
M Open a new message *
? Facebook Search
In case of Internet Explorer, You have to press Enter after pressing the suitable combination of keys.