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Why can't I open PDF files in Firefox?

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I cannot get PDF files to open for viewing in Firefox. I am on Mac OS platform. This seems to be such an ongoing issue. I have followed the troubleshooting procedures to no avail. I like the look of Firefox better than Chrome, but I am switching over to Chrome because PDF's are so much easier to handle on Chrome, and I am sick of wasting time with this. Any last minute tips or advice?

I cannot get PDF files to open for viewing in Firefox. I am on Mac OS platform. This seems to be such an ongoing issue. I have followed the troubleshooting procedures to no avail. I like the look of Firefox better than Chrome, but I am switching over to Chrome because PDF's are so much easier to handle on Chrome, and I am sick of wasting time with this. Any last minute tips or advice?

Additional System Details

Installed Plug-ins

  • Shockwave Flash 11.7 r700
  • Version 3.19.1.13088
  • Google Talk Plugin Video Accelerator version:0.1.44.28
  • Displays Java applet content, or a placeholder if Java is not installed.
  • 5.1.20125.0
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in web pages. For more information, visit the QuickTime Web site.
  • iPhoto6
  • Microsoft Office for Mac SharePoint Browser Plug-in
  • eMusic Remote Plugin

Application

  • Firefox 20.0
  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:20.0) Gecko/20100101 Firefox/20.0
  • Support URL: http://support.mozilla.org/1/firefox/20.0/Darwin/en-US/

Extensions

  • Troubleshooter 1.1a (troubleshooter@mozilla.org)

Javascript

  • incrementalGCEnabled: True

Graphics

  • adapterDescription:
  • adapterDeviceID: 0x6740
  • adapterDrivers:
  • adapterRAM:
  • adapterVendorID: 0x1002
  • driverDate:
  • driverVersion:
  • info: {u'AzureCanvasBackend': u'quartz', u'AzureFallbackCanvasBackend': u'none', u'AzureContentBackend': u'none'}
  • numAcceleratedWindows: 1
  • numTotalWindows: 1
  • webglRenderer: ATI Technologies Inc. -- ATI Radeon HD 6770M OpenGL Engine
  • windowLayerManagerType: OpenGL

Modified Preferences

  • accessibility.typeaheadfind.flashBar: 0
  • browser.cache.disk.capacity: 358400
  • browser.cache.disk.smart_size.first_run: False
  • browser.cache.disk.smart_size.use_old_max: False
  • browser.cache.disk.smart_size_cached_value: 358400
  • browser.places.smartBookmarksVersion: 4
  • browser.startup.homepage_override.buildID: 20130326150557
  • browser.startup.homepage_override.mstone: 20.0
  • dom.mozApps.used: True
  • dom.w3c_touch_events.expose: False
  • extensions.lastAppVersion: 20.0
  • font.internaluseonly.changed: False
  • gfx.blacklist.direct2d: 3
  • gfx.blacklist.layers.direct3d9: 3
  • gfx.blacklist.webgl.msaa: 4
  • network.cookie.prefsMigrated: True
  • places.database.lastMaintenance: 1368982030
  • places.history.expiration.transient_current_max_pages: 104858
  • plugin.disable_full_page_plugin_for_types: application/pdf
  • privacy.cpd.cache: False
  • privacy.cpd.cookies: False
  • privacy.cpd.formdata: False
  • privacy.cpd.sessions: False
  • privacy.sanitize.migrateFx3Prefs: True
  • privacy.sanitize.timeSpan: 0
  • security.warn_viewing_mixed: False

Misc

  • User JS: No
  • Accessibility: No
iamjayakumars 475 solutions 5852 answers

Firefox > Preferences > Application

  • search for "PDF" > Action "Preview in Firefox"
Firefox > Preferences > Application *search for "PDF" > Action "Preview in Firefox"
cor-el
  • Top 10 Contributor
  • Moderator
12885 solutions 118254 answers

The Adobe Reader plugin may not be working properly on Mac.

Disable the Adobe Reader plugin in Firefox (Tools > Add-ons > Plugins) and use the external Adobe Reader application or Preview application instead.

PDF files may be found under entries like Portable document or Adobe PDF document or Adobe Acrobat Document.

  • Firefox > Preferences > Applications > Adobe PDF document : Use Adobe Reader
The Adobe Reader plugin may not be working properly on Mac. * https://support.mozilla.org/kb/pdf-files-are-blank-and-cant-be-downloaded-mac * https://support.mozilla.org/kb/Opening+PDF+files+within+Firefox Disable the Adobe Reader plugin in Firefox (Tools > Add-ons > Plugins) and use the external Adobe Reader application or Preview application instead. PDF files may be found under entries like Portable document or Adobe PDF document or Adobe Acrobat Document. *Firefox > Preferences > Applications > Adobe PDF document : Use Adobe Reader