What happens when you double click on a .pdf file? With my OS X 10.3.9 Panther, when I double click, most .pdf files open in Preview, not a browser. If a .pdf file does not open this way, I usually resort to Acrobat Reader 7.0.7. But Safari and Firefox can often open them too. What version OS are you on? Is there a particular reason you want to use something else? Al Poulin On Nov 13, 2006, at 1:53 PM, bolobar wrote: > Hi-I would like to make a third party PDF viewer my default app. > Presently when I open a PDF file in a browser (Camino, Firefox) it > appears as a web page. I would like to disable this feature and I > can't remember or find out how. No problem opening from a saved > document. Interestingly, Safari opens to a blank page.