Firefox Community Forum

It has happened recently that when I clicked on something Firefox takes me to a different window opens in a new tab and I had to go back to the tab that I was on for that click. Is this something new that Firefox does to generate ad revenue?

When there is a field to fill in my credit card info, the info will appear and let me select the CC I want to use but when I move away from the field the CC info goes away.

I have recently discovered that Firefox is constantly sending data at around 3KBytes/S to a variety of Cloudflare servers.

What is the data that is being sent and why is this happening?

This has started to occur in one of the last updates to Firefox.

Currently running 151.0.4 (64-bit) on Windows

Does this constitute a privacy violation, what is the data that is being sent?

On Firefox(Archlinux) i can't change website fonts. "firefox-151.0.4.tar.xz" https://download.mozilla.org/?product=firefox-latest-ssl&os=linux... can't either. Even though FF-snap and FF-flatpak can. How can i fix ?

Subscription VPN quit working. When I fill out the help request and hit submit, It says "not working, try using a browser". I am in the Mozilla browser. Everything I try brings me back to the same

i used firefox version 144 or 148 and it frequently become whitescreen "but when i put or move my cursor hover, it becomes reload the page again. but it's annoying error bugs

When I fill in IRS Direct Pay it does not accept dashes in my social security number but something in my laptop inserts them. I don't know how to eliminate that. I also don't know where to correct a mistake in auto fill in my e-mail address.

I have always been able to click on a box in the upper right to see my bookmarks on the left side of the screen.

This has now disappeared and the only way I can see the bookmarks is to go to "manage bookmarks". I don't see how to bring it back to the way it was.

I didn't knowingly change anything.

Thank you

Is there a blessed solution to the problem above? I'm sure we're not alone, but our end users are not admins. God forbid... So the official statement of "enter admin credentials" is not a plausable solution on managed systems. Providing a Reinstall Firefox on the users' selv service store is something we can do, but users are usually not fond of losing browser data. (I do konw about Firefox account to sync/restore) My question is more like as the problem roots back to permission problems, what would be the proper command(s) to fix permissions? I can run commands on the end users' comptuers in the background, as root/system user, or even as them of course. Thanks

When viewing pdf files created from MS Word (.docx) documents and sent to me I see white lines across some images but not all. This happens with Firefox on Windows 11 and linux mint (various versions). It is present on the images from the file as received and after uploading to a website. The images are OK if viewed using Opera or other browsers but the same problem is present on Thunderbird. The file below has the problem on 2 images when viewed on Firefox. https://www.kass.org.uk/Documents/NewsletterFrom251114/20260304%20March%20Newsletter.pdf I have caused the writer of the article a lot of trouble because I blamed her file which seems to be OK. Can you help? Thanks Brian

I'm experiencing a strange issue with Firefox. Some websites are not loading properly, including my own website, YT Thumbnails. In some cases, pages load partially, while other times they remain stuck loading or display missing content.

I've tried refreshing the pages, clearing the cache, and restarting the browser, but the problem still persists.

Has anyone encountered a similar issue in Firefox? Could this be related to browser settings, DNS, extensions, or network configuration?

Any help would be appreciated. Thanks!

June 15, 2026

Dear Mozilla Firefox:

Re: Very Transient Search Specifications

Having disabled AI search capabilities satisfactorily, I am now plagued with re-establishing search specifications innumerable times a session. I open a tab. I set my safe search requirements followed by several items under “All Search Settings,” then save and Exit. I open a new tab and repeat all the steps. I back up out of that search list, not backing up past the window with the saved settings to find they are nevertheless reset back to default, necessitating that I repeat all the steps. I leave this window of Firefox open but minimized and open a new Firefox window and repeat all the steps.

Of what use is saving the settings? They don’t persist within tabs, across tabs, or across windows. These inconveniences began with the introduction of AI services to Firefox. Yes, I delete cookies and set other parameters in the name of privacy, but not with the expectation that saving search settings during a session will prove meaningless. Please let me know and understand how to have both privacy and utility.

A long time Firefox user and supporter.

Hi.

Why i need every time i restart the firefox esr accept the cudy.net certificate? Look the picture.

Is there a way to add it as exclude this certificate and NOT ask me every time i restart the firefox esr to accept this certificate?

The last 2 days Firefox has not been saving my open webpages

I checked my settings and it says I am set to reopen settings, but it is not doing it.

I do genealogy every day so I need my tabs to open...it lost the tabs I was going to work on the following day that I wanted to work on.

Also when I turned computer it wanted to make Firefox a default and it already is...It used to allow me to reload recent activity pages, but it did not after my Firefox crashed...it only listed about 10 pages,

I thought it may have crashed because I turned it off with 250 pages open, but it was very late and it would have taken me hours to look at all the open files

It took me a few hours to get some of the pages back, but I lost track of a lot of files I wanted to work on, but I lost track of many :-(

I am not a "techie" so I hope Mozilla support can get me back to being able to have Firefox save tabs again for me...I promise not to leave 250 files open again...that is the only thing I can think of that caused everything to crash

Thank you J

I recently started to have a printing problem in Firefox on Windows 11. My Brother DCP-T720DW works fine with other applications like Word and Notepad, but when I try to print from Firefox, sometimes I get a "Printer not available" message or the print dialog incorrectly shows the printer. For troubleshooting, I uninstalled and then reinstalled the printer driver following the official Brother download page: https://support.brother.com/g/b/downloadtop.aspx?c=us_ot&lang=en&prod=dcpt720dw_all Since that didn't fix the issue, I also downloaded and reinstalled the driver from: https://printerdrivers.com/brother-dcp-t720dw-driver/ Windows detects the printer and is able to print test pages, so it looks like the problem is only with Firefox. Here are the things I have tried: Restarting both Firefox and Windows Uninstalling and reinstalling the printer Resetting Firefox settings Running Firefox in Troubleshoot Mode Making Brother printer the default one

Has anyone else had the same issue in which Firefox refuses to detect a printer that works correctly in other applications? Is there a print setting or preference in Firefox that might cause this? Thanks in advance for any advice.