Done (submit results) works sometimes in Firefox and always in IE

I have several courses with exams works fine in IE and Chrome but not in Firefox for 2 of the 20 courses.


The problem is in the Final Exam. In the Final Exam section in IE and Chrome you can go through the questions and when you click 'done' at the last question the course posts the results, etc. You can also 'cancel' out the Final Exam.


However, in Firefox for the 2 courses you cannot cancel out of the Final Exam and while going through the questions you cannot finish it because the 'done' button does not respond and the course hangs up.


This problem only happens with 2 of the 20 courses, and does not happen with any of the other courses which use the same template. I don't know if it is something with Firefox or what. I even tried to reenter the course questions and the same thing happened. The LMS people (Coggno) say that it is a problem with Lectora.


Any suggestions?

Thanks.

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