I used to use the PDF Browser Plugin from http://www.schubert-it.com/pluginpdf/ but it does not work on Intel Macs. And since I have been on Intel Macs for a couple of years now, I have been very frustratetd with this situation. Safari now has buil-in PDF viewing capabililty but Firefox has been lacking. It is extremely annoying to view PDFs in Firefox. You click on the llink to the PDF and then you have to save it. Then you have to find the file and open it only to realize it is not what you needed. So then you have to go and delete the file so your computer doesn’t get littered with stray PDFs. Well, finally, there is an answer. Someone has released a new PDF plugin for Firefox that is completely open-source. It allows you to quickly and easily view a PDF right in your browser window.