I have set up Firefox to use my printer, but today when I tried to print out my Blockbuster cupon, which uses a flash program, it said something like "current jub has been sent to default printer." But nothing was printed. I imagine it was printed to a file somewhere. How can I find it, and how can I fix it so that flash uses my printer. (CUPS is set up and working fine)

Edit: If it helps, the title of the window was "Javascript application"