First you have to know how to activate web Accesskeys. It's not that hard.
Bottom Line Up-Front: It's probably "Alt", maybe also "Shift".
I usually try it without shift until I find one that doesn't work (such as using alphabetical accesskeys on Linux, like Alt+m doesn't work but Alt+M does for sending a message on Facebook).
Here is a semi-comprehensive list of the shortcuts I know about:
- 1 = Go Home
- 2 = Go to Profile
- 3 = Go to Fried Requests
- 4 = Find Friends
- 5 = See All Messages
- 6 = Go to "Account"
- 7 = Go to "Privacy"
- 8 = Go to stupid FB-page spam thing.
- 9 = Go to Privacy "explanation"
- 0 = Go to Terms of Service
- / = Search (Note, this is one example where on Linux if you do Alt+Shift+/ you'll get Alt+?, which is nothing on FB).
Have you tested all of these yet?(Edit)
Nope. Being lazy this morning. Maybe I'll test them all sometime.
Wait... I thought you said you know about the ones above...?(Edit)
Educated guesses, young
How to find more(Edit)
No, you don't have to just start hitting keys. Do "View Source" then search for accesskey then start looking at the clues nearby.
This will work on any web page. By the way, View Source is Ctrl+u on Mozilla and Chrome.