Diễn đàn hỗ trợ Firefox

Hi Win10 PC fully up to date. Changed my printer from a Xerox to an HP laser. In the control panel, set the HP as the default printer. MS Office prints on the HP without prompting. Firefox (134.0.2) always defaults to the Xerox. The HP is available in the drop down box. Restarting the PC or reloading Firefox makes no difference, Firefox always defaults to the (non existent) Xerox. MS Edge defaults to the HP. Any ideas? Regards - Andrew

Hey all, I'm hoping someone can help me. I have found no answers online to date.

I cannot print from the Firefox browser. When I click the print button, my printer spits out a blank page.

I can print from any other browser, Word, Excel, PDF files, anything except for Firefox. This may not be as much of an issue if Firefox wasn't my primary browser, so when I start doing work on it and find I need to print something at the end, it's a problem.

My printer software is up-to-date, I tried resetting the printing preference to default (assuming I did this correctly), and I even uninstalled and re-installed Firefox (which was a disaster). None of this helped.

Is there one of you who may be able to provide me with the help I need?

I appreciate your effort greatly.

Hello, After Firefox removed about:config option from Beta and Nightly, can you tell me how to remove Header and Footer when I print documents? I don't want to include URL, dates, times etc. but a clean document or file?

After I print a page, Firefox seems to remember most of the options I chose for next time.

For example, if I print using some custom margins, Firefox will default to those same custom margins the next time I print a page. The same for duplex options - Firefox remembers that I want to print double-sided and with "Flip on short edge".

However, it doesn't remember my "pages per sheet" settings. It's annoying because I always print 2 pages per sheet, but Firefox defaults to 1. So I need to change that setting to 2 every time I print. If I forget, I wastefully use twice as much paper.

I've checked in about:config and `print.save_print_settings` is set to `true`. Like I say, most of my settings do get saved, but not "pages per sheet".

Is there anything I can do to set a persistent preference for this?

Hello there,

I'm a relatively new adopter of Firefox so please bear with me.

First off let me say that my Brother Printer is working fine. Word documents as well as non-PDF documents print correctly and cleanly from 3rd party applications as well as Firefox. That is until I open up a PDF document and attempt to print it and see: "Printer in an error state." Clearing out the print cue and or restarting the printer, does nothing to resolve this issue.

See attached image from the printer cue.

Digging into my system (Windows 11) everything appears fine, drivers are up-2-date, and all other applications that can use the printer do so without issue. Briefly re-installing Chrome, I'm able to print the PDF without issue. Which strongly suggests that this is an issue native to the Firefox browser. Odds are if I'm seeing this issue, loads of other users are as well.

Looking forward to your replies.... Thank you in advance for your time and consideration.

-Kevin

Firefox will not longer close without also closing my pinned tabs which pretty much defeats the purpose of pinning tabs for later and makes it much harder to keep track of things. I didn't notice the first time and lost my pinned tabs that had been there for months, I immediately put them back but now everytime I try exiting firefox it informs me i'm about to close however many tabs are open + the pinned tabs. Does anyone know how to solve the problem/what might be causing it.

(April 2025) So suddenly, after my most recent FF update, if I have a document open in FF and hit "print" and choose "use system dialog box" (or whatever the exact wording is), Firefox Print opens up instead of my usual system dialog box. Why is this happening, and is there a setting I can change to DEFAULT to the regular SYSTEM PRINT dialog box instead.

I do not like FF Print. It prints one page at a time w/ like a minute pause between pages in a multi page document. And when I need more settings, it opens up the HP dialog box anyway, so wtf is the point? I just want my system dialog box back where all my print settings are in one place.

Thank you for any help!

I am trying to download videos from a site that I newly subscribed to. The videos do stream perfectly. The files do not download as video files and will not open at all. When I click on the download link, there is no recognition of a download happening and when I check my files later I have an "internet" file showing with a title but without a video file extension and nothing will open. The file extension is ".html". I am following the step by step instructions from the site involved. Other sites videos are downloading as expected.

Does firefox need to be my default browser? Any suggestions how to remedy this without losing what is working? Are there plug-ins that can address this issue?

Thanks.

I have an Arch Linux installation with Plasma desktop. Software is always kept up-to-date. Sometime recently, Mozilla apps, Firefox nor Thunderbird, will no longer print, neither to pdf nor to network printer. These always worked before. Now, if even "print preview" is invoked, the dialog opens as a blank sub window with only the word "Print" in upper right, and at left center is "Preparing Preview with rotating time delay wheel, which never resolves. All other apps, including other browsers and mail handlers, will print without issue. I've tried the obvious checks with no success. Where could be the problem? Is there a helper app shared by Firefox and Thunderbird that could be the issue? The only potential remedy I have not yet tried is complete removal of both Firefox and Thunderbird, as that would cause re-configuration issues for both. It's necessary to press <ESC> to terminate the print window when it fails to respond. Screenshot attached...

Ever since the latest Firefox upgrade to version 135.0, my Epson 3760 printer pauses between each page when more than one page is requested to print continuously. This pause before each page didn't happen before the upgrade. I now have to go into my printer queue and select each item in the queue to have it resume printing - one at a time. I'm on Windows 11 with an LG laptop.

'Running ver 137 and now cannot print to my system default printer. Tried the Troubleshoot fix and same result - defaults to PDF. Is there any entry in about:config to ensure system printer is selected. I have checked all system settings and brother printer is the default.

I tried to print directly from a website, but it will not print. If I print an image or PDF, it will print just fine. I am currently using Firefox 135.0.1 on a macOS Sequoia 15.3.

I would like to find a way to detect when the print dialog is closed in Firefox (whether the user clicks "Print" or "Cancel"). My goal is to automatically close the opened tab once the print dialog is dismissed.

Currently, I trigger the print dialog like this: var wdw = window.open(fileUrl, '_blank'); if (!wdw) {

   onError();
   return;

} setTimeout(function () {

   try {
       wdw.print();
   } catch (e) {
       onError();
   }

}, 100); However, I haven't found a reliable way to detect when the print dialog is closed so that I can close the tab accordingly.

In Chrome, I was able to achieve this by monitoring focus events and checking document.activeElement. This allowed me to determine when the print dialog was closed and automatically close the tab afterward. However, this approach does not seem to work in Firefox.

Is there a way to track when the print dialog is dismissed in Firefox?

With update 136.0, FF is requiring us to use a master password. I have one already set so my data is protected. I do not need a master password to open FF, but now I do.

STOP THIS MADNESS