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PDFs Will Not Load on FF 45/44/43/42/etc.

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  • 1 has this problem
  • آخر ردّ كتبه jscher2000

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PDFs stopped loading for me several revisions ago. I do not use any PDF plugins. I have followed the advice given in other troubleshooting threads on this topic by: trashing mimeTypes.rdf; turning off hardware acceleration; setting Preferences -> Applications -> Portable Document Format to Preview In Firefox; all of my pdfjs about:config options are set to the defaults. PDFs will not load. I am given an endless loading animation.

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When I go into the developer console, the only hint of what might be going wrong that I've found is the Javascript section errors saying:

08:54:37.499 PDF bc8d771d3de54f27bcae46789e029b50 [1.7 Adobe PDF Library 15.0 / Adobe InDesign CC 2015 (Macintosh)] (PDF.js: 1.3.76)1 viewer.js:6862:1

[I do not have the adobe plugin installed]


08:54:46.939 TypeError: ctx is undefined1 viewer.js:76:7

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You have a lot of extensions so it's painful to suggest but... have you tested in Firefox's Safe Mode? In Safe Mode, Firefox temporarily deactivates extensions, hardware acceleration, and some other advanced features to help you assess whether these are causing the problem.

If Firefox is not running: Hold down the option key when starting Firefox. (Windows: hold down the Shift key)

If Firefox is running: You can restart Firefox in Safe Mode using either:

  • "3-bar" menu button > "?" button > Restart with Add-ons Disabled
  • Help menu > Restart with Add-ons Disabled

and OK the restart.

Both scenarios: A small dialog should appear. Click "Start in Safe Mode" (not Refresh).

Any improvement? (More info: Troubleshoot Firefox issues using Safe Mode)