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Hi all, I remember in older versions of Firefox (within the past 6 months) that pdfs embedded in a page would be a hyperlink that you had to click which would open in another tab. Now pdfs automatically open which is very annoying as it makes it difficult to read, while I found a way to open it in another tab I was wondering if there is a setting I can disable so I can just click on a hyperlink.

Thanks in advance

Whenever I use FF to get a PDF file, It is corrupted. It seems to download ok. It will display, but copying from it yields garbage. Using apples Preview for speaking yileds jiberish. I do not have this problem with Safari

I had this problem for months even before my latest OS was install. Mac mini, M2, Sequoia 15.7.1, FF 145.0 (aarch64) kleps@uic.edu

This one is puzzling to me: On a website with login, whenever I click on an link to a pdf, a new tab opens (my normal setting) and immediately crashes (not my normal setting ;)). However, everything is fine elsewhere on the web, even on the same site in the sections without login. Here are some observations that may or may not be connected to this:

• If I right-click and open in new tab/window/download, everything is fine
• When I return to the tab where I clicked the link, the page reloads - independent of whether I did anything in the crashed tab
• the site-admins were not able to reproduce the problem, also it seems fine for other users
• the problem persists in troubleshooting mode, also manually disabeling extension did nothing, emptying cache etc. also nothing.

It is not like this is making me switch browsers (although no crashes in edge), but it bothers me to have no idea why this is happening. :) Maybe someone here feels the same? Thank you for reading either way!

I don't know why, but every time i open a pdf with the firefox pdf reader i get this kinda grainy view of the pdf. If i do the same with google is all good. I really don't know what to do, can you help me?

Hello... currently when I try to open a PDF from the internet, I cannot open it in Firefox. Specifically I have been adding PDF files to a FB page, but cannot open the document when browsing in Firefox. I can open it, when using EDGE.

When I try to open a pdf on a certain site I get the pdf, but there is an overlay of a pencil editing a ghost document. How can i get rid of this overlay? I've tried everything.

I am attempting to read through the ARRL Antenna book (https://home.arrl.org/action/Store/Product-Details/productId/2014032576), which is a series of locally stored PDF's with links to separate PDF's of each chapter. In Firefox, the bookmarks resolve to the currently open file, rather than the appropriate file, thus not working (see "Firefox_Incorrect_Behavior.png"). In Adobe Acrobat Reader, the links resolve to the correct chapter PDF in the <Program Files (x86)>/ARRL Antenna Book 25th Ed/ARRL Ant Book 25th Ed. Content/ folder.

I closed a PDF file but can not move it to another folder. Windows says it is open in firefox. I closed firefox and it still says it is open in firefox. I even restarted windows and it still says it is open in firefox. How do I get firefox to close and release the file?

hi team, recently i can not open any PDF when i am in gmail using Firefox Browser is updated to latest verison, i have also check settings under application and whatever i choose, when click in PDF in my gmail, i can not open it directly, i need to go right click on it, open in new tab, then it downloads to my PC and open in new tab?. stupid isnt it? i have tried many settings and nothing seems to be working, any chance that i can just click on PDF and it opens in new tab or my Adobe app, without download it to my PC, cause sometimes i just want to see wtf is the attacment...

cheers,

Hi, I am having an issue in mobile on iPhone 13 mini where I am trying to view a PDF (a bill so I can’t share the link) and it just opens to a about:blank page that says:

“Your bill is almost ready. Please wait.

Are you using a Chrome browser? Check your browser’s Downloads folder for a PDF of your bill.”

I wait and nothing happens. When I try in chrome it opens immediately in another tab (and doesn’t go to the downloads folder funny enough).

It isn’t in my downloads folder here either.

I don’t think it’s the site since it works in chrome.

I tried turning off pop up blocker, clicking the link again, and it didn’t change anything.

I also notice it is labeling the blank page as an insecure connection. It is from my city electric company so that wouldn’t be likely.

Thank you

Hello. I have a question. When I scan a PDF file in Firefox, it opens in a new window. Why? I don't mind it opening in a new tab, so I would prefer it to open in a tab.

Hi everyone,

After enabling `privacy.resistFingerprinting = true` in `about:config`, I noticed that Firefox’s built-in PDF viewer (`pdf.js`) is always displayed in **light mode**, even though my system and browser themes are both dark.

I understand that RFP forces `prefers-color-scheme: light` to prevent fingerprinting, but this also affects internal components like the PDF reader. Unfortunately, the PDF viewer doesn’t provide a manual dark mode toggle.

Is there any **official or safe workaround** that allows keeping RFP enabled while still having the PDF viewer use dark colors?

Thanks!

open downloaded pdf from "download tab" in new tab always. Opening in the same last tab, destroys the opened tab which often not support back option e. g. Banking websites.

Pls give option of new tab opening of downloaded files.

Using Firefox 143.0 on Ubuntu 24.04, when loading PDFs into the browser window, the PDF does not get properly rendered. Instead, when scrolling part or all of the PDF just show the desktop or windows behind Firefox. This usually happens after opening several PDFs and then keeps happening until I restart Firefox. Is there an issue for this extremely annoying bug?