Change Default PDF Viewer in FireFox In Firefox, you can change the default PDF render under Options Applications scroll down at the very bottom. The first option in the listing will have (default) written behind the app. Hover the cursor on Open With and observe the dialogue box that appears. Lookup a PDF file on your Mac and right-click or tap it with two fingers. Click on the Select As Default PDF Handler button and follow the on-screen instructions. It will then prompt you to make make Acrobat Reader or Pro as the default application for PDF files on your Mac.Īcrobat Pro DC will be set as your default PDF viewer, but you can reset Reader as the default by opening Reader DC application and going to Edit Preferences General. Go to the File menu, select Open, then browse to a PDF file on your Mac and open it with the Acrobat Reader or Pro.
Make Acrobat or Reader as the default PDF viewer Run Adobe Acrobat Reader or Acrobat Pro on your Mac.
