In Firefox 23.0.1, Adobe Presenter PDF movies are not playing within the browser. Only a blank, white screen and some Adobe controls appear, which do enable the file to be saved and played locally.
Internet Explorer plays the files without problem.
Flash appears to be enabled in Firefox, so I'm not sure what the issue is.
Are the PDF's being launched in FF with Acrobat Reader or the PDF.js (FF internal application) tool? Acrobat Reader 9+ is required for viewing the PDFs.
Thanks, I was able to get it to work by changing the PDF option to "Use Adobe Acrobat (in Firefox)" in the Applications area of the Firefox Options dialog box.