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Unable to access some of the pdfs in latest version of firefox in windows10

I am currently using Firefox version 77.0 in windows 10. I noticed few things that when I try to open some of the PDFs it shows "This PDF document might not be displayed … (read more)

I am currently using Firefox version 77.0 in windows 10. I noticed few things that when I try to open some of the PDFs it shows "This PDF document might not be displayed correctly" and just blank white page shows up (image included).

I use few extensions which I disabled them completely when I read PDF but still I am unable to access PDF. While same PDFs are easily readable by other browsers like Chrome or Edge.

Please let me know is it a bug or there is some settings to tweak. Thanks in advance.

Asked by Ishan Pandey 1 year ago

Answered by ARMAN KHAN 1 year ago

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Built-in pdf viewer not available

I am running FF 77.0.1. This has been an issue for awhile however. In Options, under Applications/PDF, there is no Preview in Firefox option. I've tried quitting FF, rena… (read more)

I am running FF 77.0.1. This has been an issue for awhile however. In Options, under Applications/PDF, there is no Preview in Firefox option. I've tried quitting FF, renaming/moving handlers.json; but on re-opening the relevant section remains the same(action=0). I discovered about:config pdfjs.disable=false, previously it was set to true. Then in Options/Applications/PDF, "Firefox" is an option to open, and the action=3 in handlers.json, however the behavior of downloaded pdfs is the same (downloaded). (This is trying example pdfs from different sites). I've tried changing about:config security.cps.enable=false, no change. I've also seen a plugin to "fix content types" that shows up on this site, but it didn't change anything. From what I gather, action=3 should be Preview in Firefox, not Firefox, and all pdfs are being downloaded. Is there a way to fix this? Not seeing pdfs in browser is significantly annoying.

Asked by jsauve 1 year ago

Answered by cor-el 1 year ago

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links within pdf in firefox viewer don't work

I have a web page with a link to a PDF on it. When I click on this link, the PDF opens in a new tab using the Adobe viewer, and displays fine. However, links within the P… (read more)

I have a web page with a link to a PDF on it. When I click on this link, the PDF opens in a new tab using the Adobe viewer, and displays fine. However, links within the PDF itself are ignored. When I view the same web page in Chrome or IE, the PDF also opens in a viewer, but under these browsers, the links within the PDF itself work as well. Is there any setting or adjustment I can make to Firefox or its PDF viewer to make the links within the PDF work? Thanks for any help. WJH

Asked by wjh728 1 year ago

Last reply by ARMAN KHAN 1 year ago

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Print a PDF in Landscape

Hello all, When trying to print a PDF in Landscape format, Firefox turns the page itself, but not the content. The problem happens with multiple versions of Firefox, and … (read more)

Hello all,

When trying to print a PDF in Landscape format, Firefox turns the page itself, but not the content. The problem happens with multiple versions of Firefox, and I couldn't find a thread describing the same problem. Is there any known way of fixing the issue? (I attached an image of what happens below)

Asked by adzayim 1 year ago

Last reply by Aman Routh 1 year ago

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Viewing PDF-Files in Firefox 76.0.1 not possible - strange behavior

Hello Community, I always used Firefox as PDF-Viewer and it worked fine. But since the last update it is not possible to view PDF-files anymore: whenever I click on a PDF… (read more)

Hello Community,

I always used Firefox as PDF-Viewer and it worked fine. But since the last update it is not possible to view PDF-files anymore: whenever I click on a PDF or a link to a PDF - Firefox creates new tabs endlessly. When I quit Firefox and restart it I have lots of new and empty tabs in the browser, but no PDF. It's very annoying because I have to close them all manually and can't view PDFs anymore.

I have not installed any new software, no registry hacks, have changed nothing in the browsers config, so I suppose it has something to do with the update to 76.0.1

Any ideas? Thanks in advance.

Asked by klaus.kolba 1 year ago

Last reply by Shashank Shekhar 1 year ago

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PDFs opened in Firefox don't display correctly, but work perfectly in Chrome

I've uploaded a few PDFs to my company's website, but when I open the PDFs in Firefox they display and print incorrectly (with elements of my company logo in weird places… (read more)

I've uploaded a few PDFs to my company's website, but when I open the PDFs in Firefox they display and print incorrectly (with elements of my company logo in weird places). If I open the PDFs in Chrome, they display and print perfectly. My designer can't find any hidden layers in the PDF, so that's not the problem.

Asked by WendyB 1 year ago

Last reply by jscher2000 1 year ago

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Why have PDF portfolios stopped working since the latest update and how can I restore this feature?

I have a website I use for sharing documentation. Some of these are in the form of manuals and I have no problem with these, they open in the browser as required. Others … (read more)

I have a website I use for sharing documentation. Some of these are in the form of manuals and I have no problem with these, they open in the browser as required. Others are portfolios which contain many different pdf forms. Up until the last update these opened the portfolio and clicking on a particular form link opened the form in a new browser tab. Since the update the portfolio opens but the forms do not.

When I look at the developer console I see the following error message: Error: Access to 'blob:resource://pdf.js/6c1fbe42-b5ba-48af-89a3-efb4fc5ee161?CRW%2002%20-%20Course%20Summary%20and%20Assessment%20Form.pdf' from script denied 3 viewer.js:4510:14

   onclick resource://pdf.js/web/viewer.js:4510

Is there a solution?

Asked by bob.beadell 1 year ago

Last reply by Roland Tanglao 1 year ago

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As Firefox is my pdf browser, when I click on a pdf it keeps opening the file, in an infinite loop, opening tab after tab after tab....

I think my one sentence does it. I am using Firefox as my pdf browser. I click on a file in Explorer, then it keeps opening the file continually in Firefox. If I catch… (read more)

I think my one sentence does it. I am using Firefox as my pdf browser. I click on a file in Explorer, then it keeps opening the file continually in Firefox. If I catch it in time, I can close firefox. If not, I cannot even use the Task Manager. I have to hold the off button until my machine turns off. Thank you for any thoughts on this. I believe it is a bug. WR/~ David

Asked by David 1 year ago

Answered by cor-el 1 year ago

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Preview in Firefox for PDF stopped working with FF 73.0.1

I updated to FF 73.0.1 a couple days ago and now when I navigate to a PDF file, it no longer will Preview in Firefox. Instead, it goes to the Save File option. I've tried… (read more)

I updated to FF 73.0.1 a couple days ago and now when I navigate to a PDF file, it no longer will Preview in Firefox. Instead, it goes to the Save File option.

I've tried setting it in the Options/Applications and all the other choices work fine except the Preview in Firefox.

Asked by AZBruno 1 year ago

Last reply by cor-el 1 year ago

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PDF handling between Firefox 71.x and 72.x

I have a particular PDF (an invoice of sorts) that displays information regarding one company under version 71.0 (and below), but then displays information regarding a di… (read more)

I have a particular PDF (an invoice of sorts) that displays information regarding one company under version 71.0 (and below), but then displays information regarding a different company under version 72.0.2 (and above). It's as if there are two similar documents layered within the same file, but which 'document' is visible depends on which version of Firefox you're running...!? Aside from trying to understand the PDF, itself, can anyone explain how these versions of Firefox differ, in their own handling of PDFs? Something changed between the two releases.

Asked by JW 1 year ago

Last reply by jscher2000 1 year ago

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PDF printing problem

Firefox shows a PDF invoice provided by my internet bank. The PDF is readable on screen but when I print it out, all the text is scrambled (see enclosed scan). What happe… (read more)

Firefox shows a PDF invoice provided by my internet bank. The PDF is readable on screen but when I print it out, all the text is scrambled (see enclosed scan). What happens? I have to go the long way and download the document and read it with Adobe Acrobat Reader and print from there to get it right. Or I can use Chrome, from there it will print OK.

Asked by hakan_lofgren 2 years ago

Answered by hakan_lofgren 2 years ago

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FF does not render web pages

FF used to render websites displaying downloadable PDF documents correctly. It no longer does. The page is mostly blank and completely unusable. I don't know what happene… (read more)

FF used to render websites displaying downloadable PDF documents correctly. It no longer does. The page is mostly blank and completely unusable. I don't know what happened to Firefox, but it is no longer reliable or usable. I am attaching a small screenshot of a mostly blank page in Firefox and the same page in Safari.

Asked by BHD41 2 years ago

Last reply by BHD41 2 years ago

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Is it possible that pdf.js starts always in fullscreen mode?

What I need is that when starting a pdf, it appears automatically in fullscreen (=presentation) mode instead of showing the toolbar above. In former versions of Firefox i… (read more)

What I need is that when starting a pdf, it appears automatically in fullscreen (=presentation) mode instead of showing the toolbar above. In former versions of Firefox it was possible to install a Plugin called "Nitro pdf" which enabled pdf documents to be started in fullscreen mode immediately after using the F11 button. Is there a similar function available with pdf.js or an alternative solution with "regedit"?

Asked by RoMark 2 years ago

Last reply by cor-el 2 years ago

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  • Archived

can't print to a pdf

If I'm in Firefox and want to print an editable (to highlight) pdf page, I go to "Print" then choose either "Microsoft Print to PDF" or "Wondershare PDF element". What i… (read more)

If I'm in Firefox and want to print an editable (to highlight) pdf page, I go to "Print" then choose either "Microsoft Print to PDF" or "Wondershare PDF element". What is displayed is never right. It may show the 1st page . . but not the rest; or nothing at all. I was going to try "Nitro Pro 12" but it appears that there is no way to install its "plug-in" now with Firefox.

    The end I want to get to is to have the ability, from within Firefox, to convert or "print" a pdf, that is editable, and will allow highlighting, from the webpage HTML.  It would be nice if it could be done, all at once right from the browser, without having to go through multiple steps - like taking a "screenshot" then uploading that image to some other site - which has also had unsatisfactory results (each "step" having the potential for some other unforeseen screw up or incompatibility).  I've spent a lot of time searching and can't find anything.
    Any help would be appreciated.

Asked by jandd 2 years ago

Answered by jandd 2 years ago

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Firefox PDF visualization plug-in: character set mismatch

I notice this strange behaviour using my favourite WEB browser: Firefox. Using firefox plug-in to preview into browser a PDF document I notice some character set mismatch… (read more)

I notice this strange behaviour using my favourite WEB browser: Firefox. Using firefox plug-in to preview into browser a PDF document I notice some character set mismatch happend.

For character set mismatch I mean: page layout perfectly shown but text shown using not appropriate chars. Due to this behaviour it is not possible to understand content of page. This strange behaviour do not effect all PDF pages, but only some of them.

From the pdf plug-in I tried to download the PDF file and into pop-up window I choise to open it with Adobe Acrobat Reader DC. Into Adobe Acrobat Reader DC all PDF pages are perfectly shown.

I think some "unusual" PDF setting is not perfectly interpreted by pdf plug-in

I will attach: 1) a PDF page as shown into Firefox PDF plugin 2) the same page as shown into Internet Explore PDF pluin or Adobe Acrobat Reader DC

    • - Upload images hangs, so no image is available here.

The problem is worked around setting into Firefox a different method to handle PDF file, but it is possible such information can be usefull to better design Firefox PDF plugin.

Asked by LZeta 2 years ago

Last reply by LZeta 2 years ago

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How do I download specific, non-consecutive pages?

I am having trouble downloading PDFs with Firefox. - I know how to download the PDF as a whole and name it accordingly. - I cannot find how to download specific, non-co… (read more)

I am having trouble downloading PDFs with Firefox.

- I know how to download the PDF as a whole and name it accordingly.

- I cannot find how to download specific, non-consecutive pages from the PDF (example: pgs. 1,3,5). I have tried selecting the "print" button and redirecting download to my PDF program (Adobe PDF). Unfortunately, this only allows me to download consecutive pages (example: pgs. 1-5).

Any ideas?

Asked by Anna.Belyeu 2 years ago

Last reply by Anna.Belyeu 2 years ago

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Default PDF Viewer won't change to Mozilla

So I'm trying to change my default PDF viewer to Mozilla, but it won't change from Edge to Mozilla. I have set these settings "Preview in Mozilla". Also, if I try to chan… (read more)

So I'm trying to change my default PDF viewer to Mozilla, but it won't change from Edge to Mozilla. I have set these settings "Preview in Mozilla". Also, if I try to change my default PDF viewer in Windows, it won't even let me change to Mozilla, it just pop backs to Microsoft Edge. However, if I try to set my default PDF viewer to Adobe or anything other than that, that totally works fine.

Asked by Marc-Dirven 2 years ago

Last reply by McCoy 2 years ago

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Does the built-in PDF viewer support night mode? And is there a URL parameter for setting this when embedded in a web page?

I am embedding a PDF in an iframe like this: <iframe id="pdf_frame"></iframe> I load the image using this Javascript: le… (read more)

I am embedding a PDF in an iframe like this:

           <iframe id="pdf_frame"></iframe>

I load the image using this Javascript:

       let frame = document.getElementById("pdf_frame");
       frame.src = pdfUrl;  /* URL of the PDF */

At night, my web page will be in a night mode (with a black background). I'd like to launch the embedded PDF viewer in night mode as well. Are there URL parameters to do this? Does the built-in viewer even support a night mode? I know that Acrobat supports a night mode.

Asked by JeffJepp 2 years ago

Last reply by JeffJepp 2 years ago

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PDF Files don't open in firefox now

Hi, I'm currently running version 63.0.1 , something has changed with my browser, previously when I clicked on a pdf file it would automatically open within the firefox b… (read more)

Hi, I'm currently running version 63.0.1 , something has changed with my browser, previously when I clicked on a pdf file it would automatically open within the firefox browser. It's rather frustrating to me as a user of this great browser when a pdf file attempts to open using something other than firefox. I feel sure there MUST be some method to correct this issue. Thanks, David

Asked by David 2 years ago

Last reply by jscher2000 2 years ago