This is driving me nuts. The "Upload" Flash button is not appearing in one of my apps in firefox only. The even weirder thing is I have another app which it does work. I've tried copying the includes folder for the app that works over to the one that doesn't. Deleting the includes and doing a basic test dynamic form and then adding the multiple upload beahviour.
When i test it, the "upload" button simple isn't there. any one else run into this?
OK, sorry, i guess it was a firefox cache issue. I right clicked on the window for the upload and hit "reload". The "upload" flash button now appears.
man, that was driving me nuts.