Finally, Inline PDF for Firefox on Mac!

The wait is over folks.  You can have the fastest browser and get PDFs inside of it, instead of it automatically downloading the PDF file and then it opening in Preview or Acrobat.  It has always been available on the Windows version of Firefox and now a thrid party has made it available for Macs.  No info on the developer, other than a name, but whoever colesbury is, THANKS!