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IE will open PDF forms in an Adobe Reader or Acrobat Pro window, allowing you to fill them properly.Ģ) Change your Firefox settings to properly display PDF forms: Solution:ġ) Use Internet Explorer instead of Firefox. A temporary fix is to choose this and click Open With (not Save File), it will then let you fill out the form without saving a dedicated copy. At the top of the window, a notice warns that you cannot fill out the form in this mode, and there is an 'Open with different viewer' button to open using an alternate program (Reader or Pro). Cause:īy default, Firefox tries to use a built-in preview window for PDFs. When viewing fillable PDF forms stored on Office 365 (SharePoint, OneDrive) using the Firefox browser, you may not be able to fill out the form or the form may not behave as intended. Posted by Tim Fuller on 03 January 2017 03:22 PM