Firefox コミュニティフォーラム

We have an enterprise web application that utilizes Primefaces for frontend UI. With a newest version of Firefox ESR 140.2.0 we noticed that input field values history is not saved. So the values are not proposed to the user wen he enters form data again. Problem is not available in Firefox ESR 128.14.0. Old input field values saved in 'formhistory.sqlite' before Firefox was upgraded to 140.2.0 are still available for the user.

Hi,

I clicked refresh firefox before I uninstalled the old version, then this "Old Firefox Data" folder was generated on my desktop. After installing the new version, I think I don't need this backup folder, but I was not able to delete this old data folder. It's telling me I don't have the authority, but I am the administrator. Can anyone here tell me how to delete this folder please ?

Thanks!

The text size used on both the menu bar and tool bars is way too small. I've tried a couple of 'fixes' I found online, but neither of them worked. Surely there must be a way to increase the minuscule fonts used on the menu bar and toolbars?

Unfortunately, this solution from 9 years ago also completely removes the preview thumbnails for images that we drag on pages. Isn't there a way to disable the tab preview thumbnails only?

I am aware that Windows 10 will continue seeing support for the foreseeable future, but what about older versions and builds of 10?

I ask because I'm currently on a machine that physically can't update beyond version 1909 build 18363.1198 due to an issue that occurred on my machine in November 2020. So I've been stuck at that version and build of 10 for basically the last five years. While I'm trying to see if I can update it to 22h2, the last known version of Windows 10 with the hopes of enrolling in the extended security updates, that may not be feasible due to how old the mahcine itself is. Will Firefox continue to support all versions of 10 for the foreseeable future and not just those on the ESU? If so, great. If not, what version will be the last that can support the version I'm on? I don't have a Windows 11 machine yet on a full time basis (I'm testing an 11 machine out, but I may not end up keeping it) and I prefer 10 to begin with, so I would like to know when I need to stop updating Firefox itself, so that I can be sure I'll be able to keep using the browser with my current OS.

I recently upgraded from 128esr to 142, and one of the versions changed the tab mute button into a separate button.

How do I change it back to mute button on logo? if it isn't possible, can I remove the mute button

Mudei de computador e ao entrar com a chave de recuperação de conta, é informado de que ela está inválida. Ao tentar alterar minha senha sem a chave é informado erro, que não é possível realizar a operação. Quando tento alterar minha chave de recuperação , só tem opção de fazer a alteração entrando na minha conta, sendo que estou tentando alterar por não ter a chave de recuperação. Como posso sincromizar novamente ou gerar uma nova chave?

I clicked on a link in a forum site - pentaxforums.com - that should have pulled up image from a private web site but I think the url has been hijacked, the image didn't appear and instead the browser started pinging alerts. I have run avast anti virus and malwarebytes, these found suspicous malware (trojan, key clone) and rebooted, but these alerts still keep appearing, however I am wondering of the browser alert system itself has been compromised. See screenshots. if I click on one it seems to be trying to go to a suspicious url. any advice appreciated Marcus Brown

I had Firefox on my computer. Something went wrong with a Microsoft update on 8/15/25 (which I was not aware of) when I tried to restore my computer I found the update and it said I could not restore my Windows 10 version as it had been 10 days since the update. When I tried to re install Firefox I now get an error message that files are missing and I can't reinstall. Help me. I love Firefox and want to use it.

The following is the message I get is: System Restore failed to replace the file (C: \ProgramFiles\WindowsApps.temp\15191PeakPlayer.50533F9B98293_3.3.13.0_x64_y5c4dfz5b2 with its originalcopy from the restore point. An unspecified error occurred duringSystem Restore.(0x80070003)

Using touchpad and swiping fast right and left makes you go back or forward in your browser history. I want to disable it as its annoying especially when you get knocked back out of a page and loose what youre working on.