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Firefox stopped opening PDF files yesterday and will only allow me to save the file, the option to Use Adobe Acrobat option is missing

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I have been using Firefox for several years, yesterday it stopped opening PDF files, it will only allow me to save them. I opened the options tab and under Applications, The Content Type, Adobe Acrobat Document the option Use Adobe Acrobat (in Firefox) is not there is only allows me to chose Use Adobe Acrobat Reader DC, Always Ask or Save File. I deleted Use Adobe Acrobat Reader DC and it still would not work, has there been a new update or fix, please help, thanks!

I have been using Firefox for several years, yesterday it stopped opening PDF files, it will only allow me to save them. I opened the options tab and under Applications, The Content Type, Adobe Acrobat Document the option Use Adobe Acrobat (in Firefox) is not there is only allows me to chose Use Adobe Acrobat Reader DC, Always Ask or Save File. I deleted Use Adobe Acrobat Reader DC and it still would not work, has there been a new update or fix, please help, thanks!

Chosen solution

Hi Rodney0909, the entries for "Adobe Acrobat Document" are usually saved as you associate non-standard document types with Adobe Reader through the download dialog (the application selected for how to Open it).

You can scroll down to Portable Document Format (PDF) or type pdf in the search bar above the content type list to get to the more general PDF-related preference (the one used for the standard "application/pdf" content type).

Does that one let you choose your preferred viewer? And if so, does it work?

See also: How to disable the built-in PDF viewer and use another viewer

Read this answer in context 0

Additional System Details

Installed Plug-ins

  • ActiveTouch General Plugin Container Version 105
  • Adobe PDF Plug-In For Firefox and Netscape 15.20.20039
  • Citrix Online App Detector Plugin
  • GEPlugin
  • Google Update
  • Intel web components updater - Installs and updates the Intel web components
  • Intel web components for Intel® Identity Protection Technology
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Next Generation Java Plug-in 11.73.2 for Mozilla browsers
  • The plugin allows you to have a better experience with Microsoft SharePoint
  • RingCentral launcher plugin - 3.5.0
  • Shockwave Flash 23.0 r0
  • 5.1.50901.0

Application

  • Firefox 49.0.2
  • User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:49.0) Gecko/20100101 Firefox/49.0
  • Support URL: https://support.mozilla.org/1/firefox/49.0.2/WINNT/en-US/

Extensions

  • Asynchronous Plugin Rendering 2.0 (asyncrendering@mozilla.org)
  • Multi-process staged rollout 1.3 (e10srollout@mozilla.org)
  • Pocket 1.0.4 (firefox@getpocket.com)
  • Web Compat 1.0 (webcompat@mozilla.org)

Javascript

  • incrementalGCEnabled: True

Graphics

  • adapterDescription: Intel(R) HD Graphics 4000
  • adapterDescription2:
  • adapterDeviceID: 0x0166
  • adapterDeviceID2:
  • adapterDrivers: igdumdim64 igd10iumd64 igd10iumd64 igdumdim32 igd10iumd32 igd10iumd32
  • adapterDrivers2:
  • adapterRAM: Unknown
  • adapterRAM2:
  • adapterSubsysID: 397717aa
  • adapterSubsysID2:
  • adapterVendorID: 0x8086
  • adapterVendorID2:
  • crashGuards: []
  • direct2DEnabled: True
  • directWriteEnabled: True
  • directWriteVersion: 6.3.9600.18468
  • driverDate: 5-16-2014
  • driverDate2:
  • driverVersion: 10.18.10.3621
  • driverVersion2:
  • featureLog: {u'fallbacks': [], u'features': [{u'status': u'available', u'description': u'Compositing', u'log': [{u'status': u'available', u'type': u'default'}], u'name': u'HW_COMPOSITING'}, {u'status': u'available', u'description': u'Direct3D11 Compositing', u'log': [{u'status': u'available', u'type': u'default'}], u'name': u'D3D11_COMPOSITING'}, {u'status': u'disabled', u'description': u'Direct3D9 Compositing', u'log': [{u'status': u'disabled', u'message': u'Disabled by default', u'type': u'default'}], u'name': u'D3D9_COMPOSITING'}, {u'status': u'available', u'description': u'Direct2D', u'log': [{u'status': u'available', u'type': u'default'}], u'name': u'DIRECT2D'}, {u'status': u'available', u'description': u'Direct3D11 hardware ANGLE', u'log': [{u'status': u'available', u'type': u'default'}], u'name': u'D3D11_HW_ANGLE'}]}
  • info: {u'AzureCanvasAccelerated': 0, u'AzureCanvasBackend': u'direct2d 1.1', u'AzureFallbackCanvasBackend': u'cairo', u'AzureContentBackend': u'direct2d 1.1'}
  • isGPU2Active: False
  • numAcceleratedWindows: 1
  • numTotalWindows: 1
  • supportsHardwareH264: Yes; Using D3D11 API
  • webglRenderer: Google Inc. -- ANGLE (Intel(R) HD Graphics 4000 Direct3D11 vs_5_0 ps_5_0)
  • windowLayerManagerRemote: True
  • windowLayerManagerType: Direct3D 11

Modified Preferences

Misc

  • User JS: No
  • Accessibility: Yes
jscher2000
  • Top 10 Contributor
8873 solutions 72610 answers

Chosen Solution

Hi Rodney0909, the entries for "Adobe Acrobat Document" are usually saved as you associate non-standard document types with Adobe Reader through the download dialog (the application selected for how to Open it).

You can scroll down to Portable Document Format (PDF) or type pdf in the search bar above the content type list to get to the more general PDF-related preference (the one used for the standard "application/pdf" content type).

Does that one let you choose your preferred viewer? And if so, does it work?

See also: How to disable the built-in PDF viewer and use another viewer

Hi Rodney0909, the entries for "Adobe Acrobat Document" are usually saved as you associate non-standard document types with Adobe Reader through the download dialog (the application selected for how to Open it). You can scroll down to Portable Document Format (PDF) or type pdf in the search bar above the content type list to get to the more general PDF-related preference (the one used for the standard "application/pdf" content type). Does that one let you choose your preferred viewer? And if so, does it work? See also: [[How to disable the built-in PDF viewer and use another viewer]]
jscher2000
  • Top 10 Contributor
8873 solutions 72610 answers

If selecting a setting other than "Save File" for pdf's in Options > Application is not working, the settings file which stores your download handling preferences might be corrupted. What we usually suggest in that case is as follows:

Open your current Firefox settings (AKA Firefox profile) folder using either

  • "3-bar" menu button > "?" button > Troubleshooting Information
  • (menu bar) Help > Troubleshooting Information
  • type or paste about:support in the address bar and press Enter

In the first table on the page, click the "Show Folder" button. This should launch a new window listing various files and folders in Windows Explorer.

Leaving that window open, switch back to Firefox and Exit, either:

  • "3-bar" menu button > "power" button
  • (menu bar) File > Exit

Pause while Firefox finishes its cleanup, then rename mimeTypes.rdf to something like mimeTypes.old.

Start Firefox back up, and it should build a new mimeTypes.rdf file from the Windows registry and plugin data. Normally your PDF viewer will be reset back to the built-one, but you can select Adobe Acrobat if you prefer. See: How to disable the built-in PDF viewer and use another viewer.

If selecting a setting other than "Save File" for pdf's in Options > Application is '''not working''', the settings file which stores your download handling preferences might be corrupted. What we usually suggest in that case is as follows: Open your current Firefox settings (AKA Firefox profile) folder using either * "3-bar" menu button > "?" button > Troubleshooting Information * (menu bar) Help > Troubleshooting Information * type or paste about:support in the address bar and press Enter In the first table on the page, click the "Show Folder" button. This should launch a new window listing various files and folders in Windows Explorer. Leaving that window open, switch back to Firefox and Exit, either: * "3-bar" menu button > "power" button * (menu bar) File > Exit Pause while Firefox finishes its cleanup, then rename '''mimeTypes.rdf''' to something like mimeTypes.old. Start Firefox back up, and it should build a new mimeTypes.rdf file from the Windows registry and plugin data. Normally your PDF viewer will be reset back to the built-one, but you can select Adobe Acrobat if you prefer. See: [[How to disable the built-in PDF viewer and use another viewer]].