I'll Tumbl 4 Ya

Q:So I feel that now you must teach me what to do with the rest of the F buttons

Anonymous

I’m no expert in Function keys, but here’s what I can give you off the top of my head:

F1 = Help
F2 = No idea. You should push it and find out. (Sometimes it’s the way to get into you BIOS on startup)
F3 = In your browser (if you use FF), opens up the ‘Search on Page’ function. Elsewhere, I have no idea.
F4 = Ctrl + F4 will shut a tab in your browser without shutting the window, or shut a document in a program without shutting the program. Alt + F4 shuts down the program/browser altogether.
F5 = Browser page refresh! (I use this one a lot on my Tumblr dashboard, obviously)
F6 = Focuses on your browsers URL address bar (Also gets angsty about not knowing what it does)
F7 = Animates everything on your screen and opens up a passageway to Narnia (Possibly. I don’t know. I never use that key.)
F8 = On some laptops, in combination with the fn key, it’s the way to switch your machine to projector mode/extended desktop mode. I use it a lot when I hook my machine up to a television via VGA)
F9 = Alerts the cook that you’d like more bacon on your BLT sandwich (Or so I’ve been told. It has yet to work for me, but you know - Give it a shot!)
F10 = My F10 key is dead inside.
F11 = Full screen! (Escape or F11 again to get out of it, depending on the window in question)
F12 = Will allow you to choose which device to boot from on start-up.
The F key = Is good for starting words like “food”, “frolic”, “frumpy”, “finagle”, or “fallopian tube”

And that’s about it. Please note: My experience is on Windows machines and my browser of choice is Firefox. If you use some other OS or browser, your mileage may vary.