Thank you for replying, it cleared up one of the issues. However as it turns out there is within Firefox something called Marketplace, which is similar to Google Play except Firefox supports its own app market. So I had to go to Marketplace to access Adobe Reader. Which I did, receiving a list of my Adobe saved files, which would not open any single file although I did see the list of my files. Perhaps the Firefox Marketplace is not overly used, and that was not working properly or not updated. Anyway, it seems that that would solve the problem if I could open Adobe Reader with Firefox Marketplace, but then it wouldn't open any files. Maybe you have some info? Thank you again