Many recent browser versions include their own, native PDF plug-ins that automatically replace the Acrobat and Reader plug-in from Adobe. Installing Firefox 19 or later, for instance, can result in your Adobe plug-in being disabled and replaced. Browser plug-ins typically do not support all PDF capabilities or offer comparable features. If you experience the following problems, you may need to revert to the Adobe plug-in:
Parts of a PDF don’t display
Poor performance or image quality
Large files sizes when printing to PDF
3D models don't render
Embedded SWF files don't play
Select Adobe Reader in the list of plug-ins. Under When Visiting Other Websites, in the drop-down list choose
Allow Always
and click
Done
.
The browser is now set to use the Adobe Reader plug-in to display PDFs.
