Just wanted to make sure that sdk base orange box wasn't installed by Mistake.
You see if Geo and I were standing on top of a hill by the beach and 30 naked girls were down there Geo would say " Hey Zip lets run down there and fuck one of those girls". I would say "Geo lets walk down and fuck them all". I typed that at 1 word a minute hope that was slow enough.
Maybe you got a corrupt DL from the files? If the sdk defrag doesn't do it, I suggest re downloading 2.2 full, Delete or rename the old FF folder and reinstall 2.2 see if FF shows up, fires up then proceed to 2.3 update.