PDF files are blank or cause an error message on Mac

Revision Information
  • Revision id: 42339
  • Created:
  • Creator: scoobidiver
  • Comment: PDF Viewer since Fx 19, fixed nits
  • Reviewed: Yes
  • Reviewed:
  • Reviewed by: AliceWyman
  • Is approved? Yes
  • Is current revision? No
  • Ready for localization: No
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Revision Content

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. We'll explain how to fix that.

Note: We have blocked the Adobe Reader plugin so this should not be an issue any longer.
Note: This article only applies to Mac computers.

In order to view PDF files again follow these steps:

  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 Preview in Firefox (if available), Adobe Reader, Preview or PDF Browser Plugin (if you are using the Schubert PDF plugin).
    Reader plugin - Mac
  5. Close the Preferences window.

You can also view PDF files inside Firefox with Schubert|it PDF Browser Plugin.