So far, I can't figure out how to do that. I would like to know how to make Firefox go back to the old behavior of asking me whether I wanted to save the document, or open it with Adobe Reader. Using the PDF Download extension is simple. To install the extension, open Firefox and go the PDF Download page. I found a page that directed me to set pdfjs.disabled to true, which I have done, and now Firefox only offers me the option of saving PDF documents - it no longer offers me the option of displaying them with Adobe Reader. The PDF Download extension is a free add-in that offers the user the choice of opening the PDF in the browser or in Acrobat.

Enter pdf in the search or just select pdf from the list. Make sure General is selected on the left and scroll down to applications. With the release of 19.0, Firefox started displaying PDF documents within Firefox itself, which I don't want. Open PDF files directly in Adobe Acrobat from Firefox 1. Portable Document Format ('application/pdf')Īnd I just noticed now that Portable Document Format (application/pdf) is set to 'Adobe Reader'.Portable Document Format (application/force-download).Portable Document Format (application/x-download).

Portable Document Format (application/x-octet-stream).

Portable Document Format (application/x-pdf).Portable Document Format (binary/octet-stream).Portable Document Format (doesn/matter).I have set the following Content Types to 'Always ask':

Opening pdf files in firefox