We are a Theatre that works with a online Ticketing System SABO. In the last week or so, we can no longer set the TicketPrinter as our Default Printer. This is a issue for us because choosing the printer from the Pop up Dialogue box every time is too time consuming for our customers. I have gone through all the Windows 10 Tools - we can set the printer as Default and all Microsoft documents will default to it. But anything Online including our tickets, will not default. We have logged a job with our online ticketing provider as well. We are on a very old version of Firefox because every time we update, it causes another Printing issue. The old version is the only one that doesn't cause us issue until now with the Default. Many thanks Sahn @ The New Theatre