Hi,
I have project which uses the RDLC reports i have successfully printed the reports from Chrome and Edge but i have failed to print from Firefox(versions : 45,56 and 57) and after pressing the print button i am getting your "PDF is ready" and no print preview as in Chrome.
I have followed this article Integrating Reporting Services Using ReportViewer Controls - Get Started
Please note am talking about Report Viewer 2016 control and not about the old one which uses the activeX.
Thanks in advance.