Well it isn't fixed yet
The problem that I've had for many months (and many others too) is that if you try to download a bill it produces a file called "$STANDARD". Of the browsers I have installed on Micro$oft Edge copes with this. Others (Firefox, Chrome, Opera) leave it as a download and if you click to open it, Windows asks you what file type it is. This is sheer stupidity - every other billing system that provides me with a bill in PDF format gives it a filename with a ".pdf" extension, then my PDF viewer gets fired up or else the bill gets shown on screen. It is simply incredibly stupid programming to provide a PDF file without an extension or file type. I just tried it again a few minutes ago - still not fixed.