PDF files are blank or cause an error message on Mac

Revision Information
  • Revision id: 24319
  • Created:
  • Creator: michro
  • Comment: Article only for Mac. Using the template [[T:optionspreferences]] shows specific steps for other systems (not required).
  • Reviewed: No
  • Ready for localization: No
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When you install or update Adobe Reader, it installs a plugin for viewing PDF files inside Firefox and sets that as the default. The problem is that this plugin does not work. In order to view PDF files again follow these steps:

Note: This article only applies to Mac computers.
  1. On the menu bar, click on the Firefox menu and select Preferences....
  2. Select the Applications panel.
  3. Type pdf into the search bar.
  4. For each content type listed, click on the drop-down menu in the Action column and change the selection to use Adobe Reader, Preview or PDF Browser Plugin (if you are using the Schubert PDF plugin).
    Reader plugin - Mac
  5. Click OK to close the Options window.Click Close to close the Preferences window.Close the Preferences window. Close the about:preferences page. Any changes you've made will automatically be saved.

You can also view PDF files inside Firefox with these add-ons:

For details on using these and help fixing problems, please see, View PDF files in Firefox without downloading them.