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Adobe Reader not working right.


Pdf forms in Adobe Reader are looking different than they used to. I also keep getting a message at the top which says "This pdf document might not be displayed correctly." But the biggest problem in documents that I was able to fill in information online previously are not working. In particular the tax form 941 which I need to send in!!! Help!

This is in Adobe Reader X.

Additional System Details

Installed Plug-ins

  • Shockwave Flash 11.5 r502
  • RealPlayer(tm) LiveConnect-Enabled Plug-In
  • RealPlayer Download Plugin
  • RealNetworks(tm) RealDownloader Chrome Background Extension Plug-In
  • RealNetworks(tm) RealDownloader PepperFlashVideoShim Plug-In
  • RealNetworks(tm) RealDownloader HTML5VideoShim Plug-In
  • RealDownloader Plugin
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • npsitesafety
  • Garmin Communicator Plug-In
  • iTunes Detector Plug-in
  • RealNetworks(tm) RealPlayer Chrome Background Extension Plug-In
  • RealPlayer(tm) HTML5VideoShim Plug-In
  • Windows Activation Technologies Plugin for Mozilla
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Adobe Shockwave for Director Netscape plug-in, version
  • 5.1.10411.0
  • The plug-in allows you to open and edit files using Microsoft Office applications
  • Office Authorization plug-in for NPAPI browsers


  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:19.0) Gecko/20100101 Firefox/19.0

More Information

  • Top 10 Contributor
412 solutions 4877 answers

Type about:addons in URL

Goto plugin disable Adobe reader and try it..

Modified by iamjayakumars

  • Top 10 Contributor
  • Moderator
10740 solutions 96657 answers

It looks that you are currently using the build-in Firefox PDF reader and that build-in PDF reader can't be used to fill a PDF form, so you will have to make sure that the Adobe Reader is installed properly.

You can try to disable this PDFjs reader and set the pdfjs.disabled to true on the about:config page.

I'm not seeing the Abode Reader plugin in your system details list.

Is that plugin disabled (Tools > Add-ons > Plugins) ?

Try to delete the pluginreg.dat file in the Firefox Profile Folder and maybe addons.sqlite as well to reset the plugin registry databases.

Note that you are currently running a Firefox 19 beta version, no you may need to create a new profile or try the current Firefox 18.0.2 release.

Question owner

I checked the plugins and updated them. I reinstalled Firefox so that it is 18.0.1. Now when I go to any online pdf link, it won't even open. It instead directs me to save the file.

I am just a normal person trying to use the computer and do not know what is going on. thanks.

  • Top 25 Contributor
  • Moderator
190 solutions 1961 answers

See if one of these articles will help:

... in particular, the PDF files are downloaded section.

See also: