Changing the Goodbye.html text ,do this from Player settings
Changing the Goodbye.html text from 'text-labels'
If anyone would like to change the text that appears in your browser window, after you exit the course(using the trigger - exit course), just find the goodbye.html file in the publish/lms folder of your published file edit the file, change the text and replace it.
I have just requested to be able to change the goodbye.html text from the player/ 'text-labels' settings.
Currently having to change the file inside a publish is causing file management issues on some of our large scale projects.