Firefox Community Forum

Opening PDFs automatically with Firefox and, without any changes I might make, saving them with the download function in Firefox, actually ruins the functionality and data entry function of that file. Specifically this happens with PDF files downloaded from the (not all that amusing) PDFs from the FINCEN, (US Financial Crimes Enforcement Network). I do not see why and how Firefox thinks it is allowed to change files that are simply downloaded and saved on Firefox.

In other words, it seems that Firefox strips away certain "permissions" and/or "functions" (like built-in lookup, menu or choice boxes). This means that the file so downloaded via Firefox can no longer be used to properly fill in data, or to look up and choose data items within the file. (I see many times that ANYTHING having to do with "permissions" tends to be an intractable and unsolvable problem for software makers & experts, so, if you do not know right away how to solve the problem, it will probably take you several years to figure this out.)

The PDF in question is created by a government agency. If you have ever dealt with a government agency, then you know that they act sort of like Adobe or Microsoft: "They don't respond, or they do respond & say they do not understand, and if they understand, they are either unwilling or unable to fix the problem."

If there is a switch or option within Firefox, which lets me tell Firefox "Save this file exactly like it is received, nothing added or removed!", that would be nice. I just have not found such an option yet, and it would be nice if it might get provided someday.

I will share my browser data, but I am sort of convinced that a detailed question like mine will not be addressed within that shared data.

Hi, Firefox is hard to use for me right now. The screen turns sometimes black while using the browser. Especially when opening pdf documents in Firefox the screen turns black before the document opens. Also, after switching to another tab or App the pdf is not visible anymore and also black (see sreenshot). I have tried reinstalling Firefox and also start in troubleshoot mode. What is the issue??

Thanks.

Sebastian

Hi. This is more of a bug report than a question, but after new update our company got a big problem: we print from firefox, but we had it set up so as we open the PDF document it would open directly into Adobe Reader (and then print). After update this is no longer available, altough the settings say clearly "open with Adobe/windows application". Is there a possible solution? Thanks for the answer

I used Quickfile for my accounts. Until the most recent Firefox update, I could create invoices within the software which seems to use Firefox to create them. this no longer works - within firefox it looks like it is creating the file, but doesn't seem to create a file that is able to be opened. Therefore I am using the Print Preview within Firefox, and selecting Print/Save to PDF and this works ok, but is another couple of clicks which is annoying.

Whilst Firefox may not be at fault, the issue isn't there on other browsers and it happened with the big update last week.

Why isn't this happening when I open PDF files? Usually, there's an option that lets me choose between opening it directly in Firefox or using my PC's default app (Foxit Reader), but it keeps opening directly in Firefox instead.

I want to report that after the most recent update (156.0) pdf documents with form fields with data in those fields does not display correctly, the forms look blank.

Meine gespeicherte PDF Dateien lassen sich nicht mehr automatisch mit Firefox öffnen Durch das Umstellen Ihres Firefox lassen sich die am Computer gespeicherten PDF nicht mehr automatisch mit Firefox öffnen. Ich werde jedes Mal gefragt, womit geöffnet werden soll.

I hope this is a simple setting issue. I believe I have tried everything others have recommended.

When I open a PDF I get a black background and a grey block. One for every page in the PDF.

Version 157.0 (64bit) has updated and resizing has caused issues. Previously, on my laptop screen, when I was viewing pdfs in browser I would navigate to the Tools dropdown and view the document properties at the very bottom of the dropdown. Before the update, all of the menu items fit without needing to scroll (when the window was fullscreen). Now, i must scroll in the dropdown to access Document Properties. The update resized the menu, making it longer and now it overflows. Please consider resizing back to original size or allowing users to adjust the dropdown menu.

When I set Firefox as my default pdf viewer and click in Macos Finder to open multiple files nothing happens. Clicking on one file it opens it fine. Used the "Troubleshoot menu" to disable extensions and disable custom settings, same behavior. At one point I disabled "hardware acceleration" and it actually worked. Then it stopped working, not sure why. Any ideas?

Thank you.

Pressing print/pdf button for screenshot then pick the folder destination documents then press save and what it's used for is decrease the size of the screenshot with pinching the screen then retake the screenshot of desired smaller size however for the first time it has an error in documents folder the says "can't open pdf" and then I tried the 3 dot menu in upper right corner to use an app to open it up and I went through all of them and nothing works

I use Firefox to read a lot of PDFs. Some of the documents have their own internal sections embedded into them. Because of this, Firefox PDF organizes the page numbers in a strange way. Instead of just page 1 through page 112, each section will have its own numbers starting over from 1. Thus, when I try to skip to page 3, it doesn't actually bring me to page 3 of the entire document, it brings me to page 3 of whatever section I'm in.

A large part of my job is digging through documents, and I don't have time to try and figure out which section of the document I'm in. I need page 3 to be the actual page 3. And I refuse to go back to Edge or Adobe.

I know there's a way to fix this in about:config because I've done it before on a previous computer, but I recently got a new computer and all my settings are gone. How to I turn on just regular page numbers in about:config?

Ich öffne ein PDF File in Firefox. Er wird in Firefox angezeigt und sofort öffnet sich die Datei zusätzlich Adobe Acrobat. Das soll es nicht. Ich habe geändert: - in firefox im Menu download: PDF öffnen: Firefox - in Windows 11 Standard APP für PDF: Firefox - in Windows 11 Standard Browser: Firefox

Ich weiss nicht, wo ich jetzt noch die Einstellungen ändern kann, damit sich eine PDF Datei nur in Firefox öffnet und nicht automatisch nochmal Acrobat.

The "New" PDF previewer sucks, can we revert to the old one that actually worked ?! It's a "Preview" , maybe don't try to open everything and BE a PDF program inside the browser, the whole point is to get a "Quick" look so you can decide to open , or, delete it ! This is as Bad as MS Edge trying to take over for PDF's , Revert this change, or Give us a way to choose to use the old way ! Thank you.

Starting 2 or 3 days ago, Firefox began displaying PDFs incorrectly. The problem is that a single letter is omitted here and there. In the attached screenshots, the first one shows the word. "Department" with amissing letter "t" in the middle. After refreshing the screen, the PDF displays correctly, as shown in the second screenshot.

This is occurring on a Mac; it does not seem to occur on a Windows desktop machine.

I am running Firefox Desktop 155.1 on MacOS Monterey 12.7.6.