In February this year I started having an issue with reading pdf formatted statements from my bank' (bank and personal information removed). Initially I thought it was some change at the bank so I sent the letter below to my bank. Further experimenting with Microsoft Edge and Firefox leads me to believe the issue may be with recent changes to firefox. The attached jpg file shows the problem, though not a solution. I would be curious to know if there is some (new) setting in Firefox to correct the problem. Text of letter to bank: re: document access on site You have evidently made some changes in your account display and I have to tell you there are issues with it. Previously the account document came up as PDF. Today I accessed the current statement and immediately noticed the change in display format. I usually do two things here. First I print the document. The print button worked as expected. Next I SAVE a copy for future reference. The download button DID NOT WORK. I had to use the print save to file function. This is where I found the problem. I saw this when I checked my print queue as well. Instead of PDF the document is now PDF.js viewer. I have to ask why you went to java script when the original PDF format worked properly every time? On the plus side, my pdf viewer still reads the saved file. It is the unnecessary print to file step to which I object. I am not at all happy with this change and would encourage you to return to the previous process. Since it was NOT BROKE I am at a lost to understand WHY YOU FIXED IT.