Search Support

Beware of phishing attacks: Mozilla will never ask you to call a number or visit a non-Mozilla website. Please ignore such requests.

Learn More

How can I disable the new built-in PDF-viewer?

  • 3 replies
  • 8 have this problem
  • 12436 views
  • Last reply by greytreefrog

more options

Hi Folks,

I recently got a strange problem with Nightly 15.0a1. All PDF documents are opened with the new built-in PDF viewer and it does not matter if it´s enabled or disabled - it just always opens and renders/loads the PDF file. But I want it to be done by Acrobat Reader, or save it to disk. I tried Tools-->Options--->Applications and marked all PDF related stuff to "ask" or selected the Acrobat Reader, but it did not help at all.

Can anyone help me with this?

Modified by NoahSUMO

All Replies (3)

more options

You can disable the build-in PDF viewer on the about:addons page (Tools > Add-ons > Extensions).

more options
more options

You can disable the new viewer as follows: type or open the address about:config search for entry pdfjs double click on the entry pdfjs.disabled;false and it will toggle to true You can then set things up the way you had them before according to your choice and OS. Ta ta