When I try to print a page from Firefox 57.0.2 (64-bit on Windows 10,) after selecting the printer and clicking "Print", I get a dialog that says "preparing..." and then nothing happens. Firefox hangs. Windows 10 says that the app is Not Responding". I have to manually exit. If I look at the print queue, the status is "spooling". This just started happening today. I have had 57.0.2 since it was first offered. The print driver has had no recent update. It is an Epson Workforce WF-3620. I have tried using FF Safe Mode. Same problem. I will re-install the printer driver to see if that fixes it.