Firefox Community Forum

Hello All of a sudden i am unable to sign into Hotmail, i receive the following message - Please retry with a different device or other authentication method to sign in. For more details, please see this link

The link takes you to Microsoft error 400 when signing in - https://support.microsoft.com/en-us/account-billing/error-400-when-signing-in-7af27146-7624-4397-a374-6f8eae4367fe

I have tried all the suggestions clear cache, restart, refresh, turned off extensions etc. but these have not resolved the issue, also this has only started happening within the last couple of weeks.

OS win11

I am able to sign into Hotmail via other browsers.

thanks.

bold textI have an Apple comp. I have been using Firefox with the Apple for over 10 years, suddenly Protonmail isn't working in Firefox........it works in Google and the Safari Browser on this Apple....... but the latest version of Firefox isn't working.....also unable to Copy & Paste on Firefox I think it might have something to do with the Bridge for Apple computer/Safari. I don't Know.

Ho molti problemi da circa tre giorni. Quando apro alcune pagine, a volte si verificano problemi di rendering e la parte grafica del sito non viene caricata correttamente. La pagina appare completamente grigia, ma in realtà è caricata — se clicco a caso sullo schermo vedo che i link reagiscono, quindi la pagina risponde anche se non viene disegnata correttamente.

Su X e Twitch questo succede spesso. Con Twitch, mentre sto guardando una live, se parte una pubblicità oppure cambio stream, lo schermo diventa completamente nero. Quando succede, viene coinvolto tutto il browser — anche se ho più schede aperte sui miei due monitor. Anche i pulsanti della finestra in alto (minimizza, massimizza, chiudi) cambiano stile e sembrano quelli del vecchio Internet Explorer.

Se avvio Firefox in modalità risoluzione dei problemi, X si apre correttamente, ma Twitch continua ad avere lo stesso problema di schermo nero durante gli stream.

Ecco cosa ho già provato:

cancellare cookie e cache

disabilitare tutte le estensioni

disattivare e riattivare l’accelerazione hardware

usare la modalità risoluzione dei problemi

provare altre soluzioni trovate online

Nessuna di queste soluzioni ha funzionato finora.

Ho un monitor 2K a 360 Hz e un monitor 1080p classico a 60 Hz GPU serie 5060 Ryzen 7 7800X3D 32 GB di RAM

I noticed I cannot log on to amazon.ca or shaw.ca anymore on firefox, why?

Or is the only option - as a web developer, to make duplicate css flags?

I.e: https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors/::-webkit-slider-runnable-track & https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors/::-webkit-slider-thumb Where firefox supports the behavior, but under different flag names https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors/::-moz-range-thumb & https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Selectors/::-moz-range-track

Im also looking for recommendations on barebones/simple parsers that can help make my html/css/js more compatible without messing up the code too much. Im hoping to avoid having to use a build system.

Thank you

The website commonly used by Arizonans to make filings for court, will not work properly with Firefox, even after turning off Enhanced Tracking Protection. I had to use Chrome instead.

Dear Mozilla,

As a long-time Firefox user and evangelist, it saddens me that the time has come to part ways.

I have seen threads from others commenting on Firefox's aggressive memory consumption and retention. I have not measured this and thus do not feel qualified to comment, but, sadly, I am not surprised.

My own experience in recent times highlights 2 events that have driven me here.

1) Several websites just not responding in that some screens will not even scroll. This is fixed by me moving to a different browser.

2) More seriously - When trying to fill in a web form for a work job application the page was completely unresponsive. When I contacted the web site support their answer was: "Are you using Firefox? Ah, Yes, we are having issues with Firefox that we are trying to resolve. Our suggestion for the time being is, if practical, try using a different browser". That answer worked.

I should add that the usual cache clearing, machine restarts, even Firefox reinstall did nothing to fix either of the above issues.

So with the serious memory greed issues reported by others and my own (dys)functional experiences, I fear the time has come.

Thank you for the last 30 years or so and I am sorry it has come to this.

Best of luck in your future endeavours.

BTW - This post was entered using a different browser.

There seems to be a glitch that I keep encountering when trying to sign in through my TV provider, particularly Verizon, to watch DisneyNOW or TCM or any other service for that matter. The website known as "ssoauth.verizon.com" seems to keep hanging on the message "Please wait - we are verifying your account," and the sign in never gets completed. I already tried clearing my cache and history but with no result.

Even trying to submit troubleshooting information is causing the form to crash here. If you would like, I can send you a text file containing the log I saved from the browser console.

I need my gmail account but I cannot sign into it, it wants me to start a new one, but that will not do at all. I will wait for a week to see if you can rectify this problem.

I am running the latest firefox version 147.0.3 64-bit. Gmail opens and runs fine on duck duck go and brave. Cannot find any info on how to solve/fix/override/whatever on "numeric code 4" but seems like other folks experience, too. I appreciate your help.

hi i just install firefox and when I use messenger and put my cursor on camerra or phone I have the message voice- video call not available on this browser can you help?

I need to have a telecon from the provider meet.goto.com using Firefox on my PC running Linux Mint mint-001-1.0 147.0.1 (64 bit) but I get an error message browser not supported. What can I do? Thanks

Summary: Uploading a file to a custom webapp with Chromium (Edge) works but consistently fails in Firefox. In Firefox the request is created, and times out. The server receives no file and logs “missing file.” The same webapp code is running on both Chromium and Firefox.

Environment:

• Next.js app (pages/api route)
• Endpoint: POST /api/file-upload
• Client: fetch(url, { method: "POST", body: FormData, credentials: "include" })
• Server: export const config = { api: { bodyParser: false } } + multipart parsing (formidable)
• Edge/Chromium: Version 141.0.3537.85
• Firefox Version 147.0.3 (64-bit)
• OS: Ubuntu 22 / Linux

Steps to reproduce:

1. Create a FormData object and append a local file:

  const fd = new FormData();
  fd.append("template", file, file.name);
  fetch(`/api/file-upload`, {
    method: "POST",
    body: fd,

1. In Edge/Chrome, upload succeeds. Server receives multipart body and parses the file. Actual behavior in Firefox:

• Transferred: 0 B
• No response status/body
• Client times out (Upload times out)
• File upload request received
• No bytes read server‑side.

Evidence:

• Edge request logs:
  • content-type: multipart/form-data; boundary=----WebKitFormBoundary...
  • bytesRead ~1.69MB
• Firefox request logs:
  • Transferred 0 B
  • File upload missing file field

Notes:

• Client FormData is valid; we log file.name and file.size right before fetch.
• There is a CSP report‑only warning (frame‑ancestors) when using a fallback iframe approach, but we are not using iframe in the failing case.

Question: Is there a known issue where Firefox blocks or fails to send and multipart/body can be stripped before it leaves the browser? Is there a recommended workaround that does not rely on browser sniffing?

Moderator note: This question has been edited to correct the formatting.

After many years of using Firefox and then trying other browsers I decided to stick with Firefox now, and immediately I encounter a persistent flaw.

Mainly I browse on chess.com, I mention this because there the thing occurs and I can imagine it is quite a 'complicated' website. Stick with me. I administrate clubs and play chess there so open pages regularly, in new tabs, still generally only three simultaneously.

Every 1 in 5 times the page just gets stuck loading. Only parts appear and the little refresh icon up there doesn't show because the X stays (the one to stop loading the page). This is quite annoying. Simply by refreshing it immediately loads properly. But it is ridiculous to keep having to press F5 every couple of minutes before one can get on. As I also used Beta channel on my win11 machine I figured maybe it's that but after several updates it persisted. Now I am using the Normal channel and a Linux Mint OS and exactly the same keeps happening. I have tried a dozen remedies. Like adding an exception to the enhanced tracking in Firefox and several others and nothing fixed this. Does anyone knows how this happens?

And will Mozilla fix this? Or is it completely at the bottom of priorities because it is site specific?

Thanks for any replies (OS most recent Linux Mint Cinnamon. browser version mint-001 1.0 firefox 147.2) (Happened on Windows 11, Firefox Beta as well)

I am unable to sign in to my yahoo mail account. It gives me a fault that "something went wrong, please try another device". I can use brave as my browser and sign in with no problem but not with firefox. Any idea why?