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Ffx 147.0 / Mac OS Tahoe 26.2 / HP printers

Print dialog page margin custom values appear in mm only. No option for inches here.

As recommended years ago for earlier Mac OS and Ffx versions, I've tried the about:config dialog. Changed several universal page margin unit settings from 1 (mm) to 0 (inches), and also or my specific printers, for top, bottom, left and right. Also have tried to disable "unwriteable margins" settings, universal and printer-specific.

But the Print dialog Margins|custom (mm) seems to be hard wired, so not responding to changes in configuration settings.

Also have ensured that all Mac system measurement specs (Language, Region) are US and not metric.

Any ideas will be appreciated.

It would be easier to understand if there was actually a paper size setting, but there isn't. The alternative of changing settings on three different printers to get back to A4 seems ridiculous to me and I don't have 3 printers to circulate among. Why is Mozilla convinced everyone wants Letter size as default? Sorry about the grumps, but there you are.

Hi,

While printing documents or web pages from Firefox, I sometimes notice issues with text alignment, margins, or scaling compared to what I see on screen. This makes it hard to tell whether the problem is coming from Firefox print settings or the printer itself.

To troubleshoot, I usually start by printing a basic printer test page from the browser to check text clarity and layout before changing advanced settings. Browser-based tools like MyPrintTest are helpful because they let you test printing directly from Firefox without installing extra software.

Is there any recommended Firefox print setting or workflow to ensure consistent print output across different printers?

Thanks for any guidance.

Hi,

I want to print some labels, but when I print them, they always com sideways. Even when I change them settings on the printer, to print it not sideways.

In Firefox Mobile app... When I click Print option (for print pdf) It opens default printing app and it opens default letter format with header footer automatically added to the page

There is no option to remove header footer (this only appears in Firefox print...)

2nd problem is when I switch to landscape print it just shrink the letter size to the left and right half page is blank... Not responsive.. not automatically fits to the paper size... You can check the attachment for visuals of the problem.. Please fix this adjustment and header footer link problem or provide built it browser printer for custom printing options before launching the printing app.

When I try to print puzzles daily from USA Today through Firefox, the crossword and/or the sudoku show up in the print box as 2 pages, when they are only 1, unnecessarily printing a blank page. If I print through Chrome instead, it only shows and prints 1 page. In order to print only one page in Firefox, I have to change the "pages" from all to current. Never used to have this problem.

I recently experienced [not previously] in trying to print a received e-mail using the "print" item. When I clicked on the "print" word I received the following error

https://mail.yahoo.com/print/message/AFe0zTKlUhih9Gu_uzKg3tJ-XbE?appName=NOVATION_APP sent back an error.

Error code: 403 Forbidden

   Check to make sure you’ve typed the website address correctly.

Please advise how/where I may change a setting to avoid this error

I use the same laptop at two locations. I have different printers at each (both HP, one a laser the other an inkjet).

Most of my time is at location 1. Typically I can print without a problem. Recently in Firefox ONLY I have been unable to print at location 2.

Scenario:

1. I print to the laser printer at location 1. No problem.
2. I go to location 2 and choose to print - the print dialog appears with a "spinner" and it does not go away.

I have to cancel using Esc. I am unable to print at all from Firefox. Typically if I close Firefox after that, it looks closes but is still shown as running in Task Manager.

Other programs such as Word and other browsers bring up a dialog box showing that "the printer cannot be contacted" and allows cancellation. At this point I can choose the local inkjet printer and all is well.

HELP!!!!

Mal Lowe

I have had a problem with printing of an app's full page. It will print all the pages but will not print some of the content. This has happened with a printer command and print screen. I've researched the problem through the online app's help page but was told I should switch to another browser. I didn't have this problem a couple of months back but suddenly have the problem with two different company app's. Any help would be appreciated.

I use Lightspeed Retail at work and it worked fine until recently. I can print labels, but if I need to print anything else, both tabs (print tab and main Lightspeed tab) stop responding. The print tab brings up the print preview popup, but gets stuck and I can't actually print. Both tabs essentially freeze and I have to close both and reopen Lightspeed in a new tab to do anything again. This has been going on for weeks, I'm not sure exactly when it started.

when printing a PDF in two side mode, the text is moved to one side, I assume to allow for binding the pages. However this function does not work correctly as some pages have the text moved to the incorrect side. I had to use MS Edge to do the job which is something I do not like to do.

Long-standing problem with Firefox: when printing some webpages with text on letter-size paper, the last sentence on a page is sliced off, with the remaining slice printing on the next page.

I put the same URL in the Opera browser, and across several scale factors, it breaks the page cleanly without slicing through thelast sentence.

A fix is long overdue.

I have a Canon TR8620 printer and a desktop PC. Yesterday I tried printing off a couple of text selections from two different sites. Both times the printer malfunctioned, printed the selection only partially and kept repeating this until I turned the printer off.

I contacted Canon support, and we went through a series of troubleshooting exercises, and he determined there was no problem with the printer itself. He suggested I tried printing from another browser.

I switched to MS Edge and successfully printed off two different items without a hitch. He and I both agreed that it appears to be a Firefox problem.

I recently updated Firefox to 144.0.2 (64-bit) and am suspicious the problem may lie there. I am running Windows 11 Pro.

I don't necessarily have a question, I just thought you might want to be made aware of this problem.

Since Version 145.0.2, November 26, 2025, 1. firefox won't print anything anymore. No matter the way that I select something to print (print to PDF, print to printer), firefox won't print anything anymore. The print options screen does pop-up when "print" is selected , but when "print" is selected on the print screen pop-up nothing happens. This includes the "print to PDF" function as no "save to" file folder pop-up opens to select where you want to save the pdf file to. After an update prior to the "Version 145.0.2, November 26, 2025" firefox no longer allows you to move your tabs from their original positions to the left or right along the tab bar in the browser. I use to be able to click on & select one or more tabs and move those tabs anywhere to the left or right of their original position to anyplace along the tabs bar. NOW at present, the only way to move any tab's position is by "right clicking" on the tab, select from the drop down "move tab" and selecting 1 of the 3 options ("Move to start", "move to end", & "move to new window"). You can also add tabs to groups through the "right clicking" process. Unfortunately you can't simply move tabs in any other ways without using those "right click menu options. This is VERY frustrating because I constantly move tabs (or strings of tabs) to better group them without having to add them to specific "groups". And speaking of groups, you can no longer rearrange the tabs in "groups" either.

These are both some of the most basic and general functions for firefox that no longer work in firefox 64 bit on windows 10 OS (my primary PC, but the same holds true on Windows 11). You should also note that recent updates also occured on both Windows 10 & Windows 11. I am still currently able to print from and move tabs in the Edge browser which I have had to start using more & more since these functions stopped working in the firefox browser. I've always preferred using firefox even though it is a huge resource hog, but if firefox doesn't fix these problems soon. I will have to resort to using the Edge browser over using the firefox browser. That reminds me of a 3rd problem with your "unload tab" function, 3. The "unload tab" function ONLY works if you click on and open the single tab first. The "unload tab" function ONLY WORKS for a SINGLE TAB at a time. When/if you select multiple tabs and select the "unload tab" function in the "right click" drop-down, ONLY the first tab selected and that you are currently on, using, and viewing will "unload" while NONE OF the remaining selected tabs will "unload". You need to make a way to "unload" ALL TABS that you are NOT currently viewing/using as "unloading" tabs one at a time is painfully tedious. The "unload tab" function would be a great idea to reduce firefox from being the huge memory hogger that it is, but only if you make using the "unload tab" function's use less tedious. Perhaps Mozilla should consider making the "unload tab" function less necessary, by either making the "unload tab" function automatic and not NEED to run every opened tab until said tabs are actually in use & actively being used OR BY making firefox less of the enormous resource hog that it has become.