OCTET

Oberlin Center for Technologically Enhanced Teaching

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PDF files are blank and can’t be downloaded on a Mac in Firefox

Description:

Users have been experiencing difficulties with viewing/downloading/accessing PDFs in Firefox on a Mac computer.  A user clicks a link to a pdf and either nothing happens, or a new blank tab/window opens.  The PDF is never downloaded or opened.

 

Product affected:

Firefox on a MAC

 

Reported:

9/11/12

 

Vendor response:

 
 

Problem resolved:

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.   A workaround is available.  In order to view PDF files again follow these steps:

  1. In Firefox, go to the Tools menu.
  2. Select Add-ons.firefox tools addons plugins
  3.  On the left menu, click PLUGINS.
  4. Locate the Adobe Acrobat NPAPI Plug-in and click the DISABLE button on the right.  This will disable the Plugin.plugins npapi ask to activate
  5. Check the link to the PDF and see if you can now access the file.  If it is not working as expected, you will need to change the setting in Firefox.  From the Firefox menu, click Preferences.preferences
  6. On the Applications tab, do a search for PDF.
  7. Check the actions for the content type (application/pdf).  Change the action to match your desired outcome.  If you would like to Use Preview, select that option.  If you want to use Adobe Reader, select that option.  If you want to use a PDF Plugin that you’ve installed, select that option.   If there are no options available, select USE OTHER and locate the application on your computer that you would like to use to view the PDF.Applications pdf actions
  8. These actions should correct the problem. Check the link to the PDF again, and it should work as expected.   If not, please contact us.

 

By

Cookies Disabled Error

Description:

One student reported to me that she was not able to gain access to the weekly journal section.  What happens (she showed it to me) is when she clicks on “view,” the message “cookies disabled” shows up.  She tried with Firefox and Safari. 
 

Product affected:

Blackboard Learn

Campus Pack Wiki/Blog

 

Reported:

9/11/12
 

Vendor response:

 The cookies disabled error indicates that your browser is not accepting cookies from Campus Pack; you will need to adjust your browser settings to allow cookies from this domain. For most institutions this domain is campuspack.net .
 

Problem resolved:

The end user must allow cookies from the vendor site by making a change to their browser settings.

The exact steps to follow depend on your browser.

  • Firefox

In Firefox, go to Edit -> Preferences -> Privacy -> go to Exceptions… and Allow cookies from oberlin.campuspack.net

  • Internet Explorer

In Internet Explorer, go to Tools -> Internet Options -> Privacy and go to Sites… and Allow cookies from oberlin.campuspack.net

 

See full post at http://community.learningobjects.com/Groups/Documentation/Campus_Pack_4.4_User_Guide/SSO_No_Cookies