Hi,
to answer to myself:
select SMS_R_System.Name, SMS_R_System.Client, SMS_G_System_ADD_REMOVE_PROGRAMS_64.DisplayName, SMS_G_System_ADD_REMOVE_PROGRAMS_64.Version from SMS_R_System inner join SMS_G_System_ADD_REMOVE_PROGRAMS_64 on SMS_G_System_ADD_REMOVE_PROGRAMS_64.ResourceID = SMS_R_System.ResourceId where SMS_G_System_ADD_REMOVE_PROGRAMS_64.DisplayName like "Mozilla Firefox%" and SMS_G_System_ADD_REMOVE_PROGRAMS_64.Version < "80.0"