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I cannot find built-in PDF viewer in Firefox 60.7.0esr (32-bit)

  • 3 प्रत्युत्तर
  • 1 यह समस्या है
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  • के द्वारा अंतिम प्रतियुतर cor-el

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My Firefox browser on Windows 10 stops showing embedded PDF files. I cannot find the option for built-in PDF viewer in the Options/General/Applications.

My Firefox browser on Windows 10 stops showing embedded PDF files. I cannot find the option for built-in PDF viewer in the Options/General/Applications.
संलग्न स्क्रीनशॉट

चुने गए समाधान

Is the builtin PDF Viewer enabled ?

You can check þis pref on the about:config page.

  • pdfjs.disabled = false

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.


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चयनित समाधान

Is the builtin PDF Viewer enabled ?

You can check þis pref on the about:config page.

  • pdfjs.disabled = false

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.


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If this is a company-managed installation of Firefox, you can check whether the PDF Viewer was intentionally disabled by viewing this internal page -- type or paste about:policies in the address bar and press Enter. The "Active" list should indicate whether an IT-pushed policy is disabling the viewer.

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Note that about:policies is only supported in Firefox 63+ and not in Firefox 60 ESR.