I asked this question in an unrelated support ticket so I want to give more detail here. I have tried uninstalling Adobe reader and reinstalling it and it did not help. This was working before with all the exact same addins I had before. I called the Bank and asked if they had any problems and they say no. I can go to the Firefox PDF display for this file and click on download the PDF then double click it in Windows explorer and Adobe reader comes up and displays the file just fine. Don't mind doing that for now. What happens is the bank loads the file then Adobe reader displays with a white screen and a little circle going round and round, like a video is trying to play, and it just sits there forever. I never see the file contents. Anyway I hope your have a good of a day as I am and I know it get better. Thanks Firefox programmers for such a wonderful program.

Update: While I was writing this I remembered to go into Firefox options, then Applications, and wouldn't you know it, a PDF document was set to "Preview in Firefox". I changed that to Adobe reader and now it works just fine. Guess there's something wrong with the Preview code in Firefox. So I'm happy now. Hope this helps someone.