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I cannot open PDFs in Firefox even though it is set to "Preview in Firefox"

Inserita

Hello all,

For some reason, even though it's set to do so in settings, I cannot view PDF files in Firefox, only download them.

Has this happened to anyone else?

Cheers!

Hello all, For some reason, even though it's set to do so in settings, I cannot view PDF files in Firefox, only download them. Has this happened to anyone else? Cheers!

Dettagli aggiuntivi sul sistema

Plugin installati

  • Shockwave Flash 30.0 r0

Applicazione

  • User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0

Ulteriori informazioni

jscher2000
  • Top 10 Contributor
8693 soluzioni 71065 risposte

Hi weenusman, you are not completely alone in this problem. We had a similar report last week.

(1) Test on multiple sites.

Some sites may not use the exact content type application/pdf that Firefox uses to recognize Portable Document Format (PDF) files.

(2) Try switching among the options to see whether that helps.

This article will get you to that part of the Options page: View PDF files in Firefox. Like "turn it off and on again" switching to Adobe and then back to Firefox may help the message get through.

If that doesn't help, check out the other thread I mentioned to see whether that more drastic remedy helps: Cannot view PDF in firefox.

Hi weenusman, you are not completely alone in this problem. We had a similar report last week. (1) Test on multiple sites. Some sites may not use the exact content type '''application/pdf''' that Firefox uses to recognize Portable Document Format (PDF) files. (2) Try switching among the options to see whether that helps. This article will get you to that part of the Options page: [[View PDF files in Firefox]]. Like "turn it off and on again" switching to Adobe and then back to Firefox may help the message get through. If that doesn't help, check out the other thread I mentioned to see whether that more drastic remedy helps: [https://support.mozilla.org/questions/1231487 Cannot view PDF in firefox].
jscher2000
  • Top 10 Contributor
8693 soluzioni 71065 risposte

In case this comes up again, I created an extension that can help with this problem. I suggest leaving it off until you run into a problem, and only turning it on (using its toolbar button) while you are downloading files that need it. Otherwise, because it intercepts every response from every web server, it may slow down your browsing.

https://addons.mozilla.org/firefox/addon/content-type-fixer/

If you try it, let me know how it goes.

In case this comes up again, I created an extension that can help with this problem. I suggest leaving it off until you run into a problem, and only turning it on (using its toolbar button) while you are downloading files that need it. Otherwise, because it intercepts every response from every web server, it may slow down your browsing. https://addons.mozilla.org/firefox/addon/content-type-fixer/ If you try it, let me know how it goes.