Diễn đàn hỗ trợ Firefox

The same thing happens on my two Dell laptops (Inspiron and Latitude), and a Hyper-V VM (on my desktop PC). They all run Bazzite Linux 6.17.7-ba25.fc43.x86_64.

A video may play for a second or two, and then it's either a black screen, or an error message of "The content doesn't seem to be working."

On the same two laptops and VM, the Chromium Browser, and LibreWolf (a fork of Firefox?), have no issues playing the same videos.

Firefox version on all three systems is 147.0.3.

Any help/guidance welcome with thanks.

I went to view a password and a dialog box pop up saying that I need to sign in to my Windows Login Credentials which apparently I do not know as it will not let me in. Tried my Microsoft office and also locked out. Will let me change my master Mozilla Log In and auto fill but can not view. How can I disable this

I completed an update on Firefox and all of the passwords I had saved are gone. I have tried checking for alternate profiles, but that did not work. How can I recover my passwords?

Hello, I hope somebody can give me some guidance about two issues that are driving me crazy. To provide some context, I use Firefox to work from home and my primary interest is accessing government and bank sites from my country to fill out tax forms and pay said taxes, therefore the browser built in provisions that deal with web page development, shortcuts, Artificial Intelligence, Social Media are utterly useless to me. The issues are as follow: 1. I regularly access the website of the federal tax authority of my country and local state hundreds of times each day. After a while, normally two months, Firefox starts to behave like a drug addict: It develops a resistance to the security cookies from these sites that worsens over time, until eventually the websites plain out kick me as soon as I log in. The only workaround is to use Privacy Mode or another browser until Firefox starts to behave again. In 2026 this started to happen with the bank website too. 2. After a fit of rage after a failed task I was in the process of attemping to destroy the mouse when reason finally prevailed but not before I got another issue with Firefox: The browser now prints (To PDF and paper) every single item from dropdown menues in webpages that cointan these elements. I already tried re-installing the browser, doing a clear install, erasing cache and cookies, deleting profiles. Thank you for any guidance.

What happened, All my important bookmarks are missing. I have had to log into every account I have, No saved passwords. Really upset. I need help to restore all this information that I need

I am unable to download a bank statement pdf from my online banking, using Firefox. I AM able to downoad it using Google Chrome. I am able download OTHER pdfs on Firefox - just not my bank statements! I HAVE been able to download bank statements successfully in the past, using Firefox, but now am unable to. When I try to download statement from the bank website, firstly I get a black screen with small message saying "No preview available", and an invitation to download. On clicking Download, I'm taken to a white page saying "Error No API key found in request. request_id: a2ad87061f2bed614b1d53708d35cb26", but no further options. I've exchanged messages with my bank, who've found no solution, and advised me to look into it with you guys - ie, Firefox browsing. I've played around with Firefox settings, cookies, security settings, etc, but all to no avail.

Any clues how I can resolve this?

I accidentaly deleted my profile. How can I get back my data, passwords to accounts....Is that all gone now???? Somebaody please help me clarify this situation. And why does firefox insist on these profiles anyway, I just want to open my browser use it then close it, simple. Now since the last update I saw a wierd circle on the firefox launcher and thought it meant nothing. When i deleted the profile literally EVERYTHING is gone. Who does this, what did the profile even help????? Somebody please help

We have purchased an update for our car navi system and the process begins with a map downloader installed in our computer. We are getting an

Error Message : Could not Load: qrc:/qmi/loginpage.qmi:9 type Basepage unavailable.

Is this process being blocked by Firefox?

Hi,

My Firefox had auto updated to the newer version with AI built-in and auto-enabled, which meant the browser would crash EVERY. SINGLE. TIME. I would launch it.

For perspective, I am running an old Lenovo Thinkcentre mini PC with an Intel i5 6th gen and 16gb of ram; its got Windows 11 installed, and always running out of memory with the simple things like browsing and word processing. This is NOT a PC or use-case that needs or warrants AI.

So, I uninstalled Firefox (149) and installed the latest version WITHOUT AI built-in (147).

I then synced my profile, and things ran fine. An hour passed, and then i kept getting an error, saying my profile was created with whatever and I need to create a new profile.

So, I created a new profile and synced, again, and I got the error, AGAIN...

I'm about to boycott Firefox on all the devices I control, and opt for an older version of Opera or something more obscure, so that I don't have to deal with this nonsense.

Hi there,

I woke up this morning and opened firefox. Normally it opens the days previous tabs and this morning it didn't. When I tried 'restore recent tabs' it didn't do it. When I went into history and found the previous day's back up and tried to restore it also failed. Can you help?

Best wishes, Inez

YouTube is playing 4K videos like they are in slow motion. If I lower the quality they work fine, but switch back to 4K and it's slow motion stutter-fest again. I have seen several topics about this but it's still happening to me despite all of the "fixes" I've tried. This is a list of everything that I've seen and tried, and not a single one or any combination of them fixes the problem for me.

In about:config I tried changed the following to False: gfx.webrender.layer-compositor media.av1.enabled media.wmf.dxva.d3d11.enabled

Tried uninstalling all extensions.

Tried a complete uninstall and reinstall of 149.0.2 with a fresh profile instead of updating from 148.0.2.

Tried installing uBlock Origin and used the following rule: ||www.youtube.com/web-reports$xhr

Tried unchecking the uBlock "Quick Fixes" filter.

Tried disabling hardware acceleration.

Tried disabling DNS Over HTTPS.

All that said... what DID fix it was reverting back to Firefox 148.0.2. I tried again to update from that to 149.0.2 using the FF built in updater but the same issue immediately came back. Zero issues at all playing 4K YouTube videos on FF 148.0.2 or the latest versions of Chrome and Edge. Issue is ONLY on FF 149 and 149.0.2.

Seit kurzem kann man in der WhatsApp-Web-Version keine Bilder mehr einfügen. Es erscheint nur ein schwarzes Feld. In Chrome und anderen ANDROID-Geräten funktioniert das. Nur nicht in Firefox. Die WhatsApp-Hotline schreibt, dass es an Firefox liegt.

I am using Firefox 149.0 (64-bit) with Yahoo.Com as my home page. All of a sudden, when I use the search bar at the top of the Yahoo Home Page, Firefox opens up a blank tab in response. Doesn't matter what I search for, same thing happens. Then, if I close that blank/empty tab and reattempt the same exact search again, it works fine.

This has been happening only for the past few days - was fine before. Is this Firefox? Or is this Yahoo? And how can I resolve the issue?

Thanks in advance.