Didn't you already start a thread about this? http://forums.suse.com/showthread.ph...-to-launch-PDF

Do you have Adobe Reader installed? If you do, then in Firefox check what Arnaudk93 suggested. Also if you type
Code:
about:plugins
in to the location field, is Adobe Reader listed? (It might be listed as acroread, I don't have a machine with Adobe Reader install on to hand right now.)

You say the PDF doesn't get opened, what does happen?