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Firefox taking over PDFs

  • 5 replies
  • 0 have this problem
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  • Last reply by cor-el

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Every time I update Firefox I find it has taken over opening pdf files. Yes I know how to fix it but it is a pain having to do that after every update. How do I fix this other than stopping all Firefox updates?

Every time I update Firefox I find it has taken over opening pdf files. Yes I know how to fix it but it is a pain having to do that after every update. How do I fix this other than stopping all Firefox updates?

All Replies (5)

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You can disable Firefox as a pdf reader by making the following preference true in about:config. pdfjs.disabled

https://support.mozilla.org/en-US/kb/about-config-editor-firefox

Modified by Terry

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Is there an application set for PDF in Windows ?

I think that Firefox would only do this if it finds that no application is set to handle PDF files.

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Thanks Terry, have followed your suggestion and will see if it works next time I update Firefox.

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Reply to cor-el. Yes, of course I had a default pdf app set. As I said, I knew how to fix it when it happened. Am trying Terry's suggestion and am hopeful it will fix the problem.

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Flipping the pdfjs.disabled pref will disable the built-in Firefox PDF Viewer, so pages that embed a PDF file will stay blank.