TM1 Web – unable to select from Action Menu or SUBNM

Mozilla released Firefox web browser version 52.0 on March 7, 2017.  With this version, there appears to be a problem with some of the features in IBM Cognos TM1 Web.  Specifically, the Action Menu dropdown was no longer functioning.  Also, users were unable to select a specific element within a SUBNM dropdown object.  The [...]