Firefox Community Forum

On outlook.com sign in with password does not work. It gives "Please retry with a different device or other authentication method to sign in." Works fine in edge.

2026-02-17

for about 8 years now, on and off, on hundreds of OS-es, clean installs of firefox etc. sometimes - not always - typing into the firefox search bar and pressing enter does nothing

i have bit-warden, u-block-origin and stylus installed (but they shouldn't be running on the 'new-tab-page' - is my firefox sync-profile containing some firefox-breaking-errors? (latest Win-11)

HI Since the last update from Firefox. I am experiencing frequent and multiple crashes. so much so I have beenusing google chrome as alternative browser. It would appear to me that the "new" version is unstable. = Version 147.0.4 (64bit).

Do I go back the the previous version? and if so where is it.

Pete

When trying to log into my bank, I get the following message: "Bad Request: Your browser sent a request that this server could not understand". I have tried to clear cookies, to no avail.

Firefox stores certain temporary data in a startup cache to improve startup speed. Clearing the startup cache and then restarting Firefox can sometimes fix various issues, such as mixed languages in the user interface after an update. This will not change your profile data or add-ons.

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In Firefox (up to date yes) when I embed a YT video to the forums I use, it comes up with an YouTube Configuration Error 153.

How do I fis this? YT embedded on Chrome & Brave etc play perfectly, but Mozilla always sends me to YouTube itself.

I used to be able to have all sorts of tabs open for an entire month. Now, I can't keep them open even for a day. It seems to be a problem selective to Youtube (other tabs like Yahoo Mail still work), leaving my Alienware 15R4 laptop fans running really loudly for a few days now, since updates ran (not sure if that's related), and leaving me having to shut down and reboot the browser, daily, instead of once or twice a month. Is there anyone working on getting us back the old Youtube, or replacing Youtube with something like what it used to be? I am running adblock plus and uBlock Origin, should probably turn them off to see if they're related to the problem, huh? I'd hate to start having to use a different browser.

Windows 10 Home V 22H2 Alienware 15R4 Firefox 147.0.3

I have three laptops which are synced. One function I do not want to sync is my individual selection of themes. Every time I change the theme on one, the other two go blank. In my sync settings I sync Settings and Add-ons. Do I need to disable one of these to correct the ongoing problem?

Firefox: When printing out - or saving onto PDF - a website, its URL is placed in the footer or the header, depending of the settings. Unfortunately, when the URL is longer than half of the width of the printed page, it is truncated. How to avoid this truncation?

I have a profile that I had copied from my main profile, which is connected to an email and synced. This second profile is unsynced, and it won't let me sign into my account because that account is connected to the main profile. It says I need a separate account for a separate profile. Fair enough. I try to make an account. It says I cannot sign in to the new account because the profile is synced to the old one. Very annoying to be given instructions that don't work. So, I make a new profile and sign in to my new account on it. It works. But now I don't have my bookmarks and passwords. So I find instructions on backing up my account and copy my secondary profile into the new profile with the new account. It logs me out and is now giving me the same error! (the backup was successful though) I don't want to have to copy and paste all of my passwords and things into a new account. Is there any way to make my secondary profile syncable?

When Facebook creates passkey Firefox asks for an USB to be inserted. I have tried to disable USB in the settings ("security.webauth.webauthn_enable_usbtoken","false"). But then Facebook just gets into a retry loop and I can't create the passkey. I use Windows 10, and USB is NOT enabled as an authentication option. I need to fix this as Facebook nags me (in e-mail) to create a passkey.

Firefox desktop (147) keeps deleting all Bookmarks, passwords and cookies. I sign in and it's fine till I restart windows 11, then all is gone except the titles of the Bookmarks minus ANY data they may have held. Importing B.M.'s works till the process starts again. Cookies are just gone and same with any passwords I may have saved. just seems to happen in Firefox, was never a problem before the end of last DEC.

Why doesn;t Firefox autofill my saved sites and passwords. I cannot find a setting for that. I don't want to go through all my sites to change passwords and don't know if I did would they then work to autofill. bold text

Hi All,

I would like to remove the first item from the Tab Context Menu, which is "Add Tab to New Group", and simply have "Reload Tab" as the first menu item.

I was using this code, which worked in FF 145, until the latest update (FF 147)...

#context_openANewTab,
#context_moveTabToNewGroup,
#context_moveTabToGroup,
#context_ungroupTab + menuseparator {
   display: none !important;
}

However, now there is an extra separator line at the top of the menu (see attached images).

This code also removes the top menu item, but still leaves the separator line on top:

#tabContextMenu #context_moveTabToNewGroup {
  display: none !important;
}

Is there a way to remove the first menu item without adding the separator line?

Thanks!

YouTube videos are choppy in Firefox, despite trying solutions like clearing the cache, disabling hardware acceleration, and using Safe Mode. I’m using Windows 10 with the latest version of Firefox. What can I do to resolve this?"

"I’ve been having trouble with choppy YouTube videos in Firefox. It happens on both Wi-Fi and Ethernet connections. My system is running Windows 10, and I’ve already tried disabling hardware acceleration and clearing my browser cache. The issue persists even when I’m in Safe Mode. I’m using the latest version of Firefox (XX.XX). Any suggestions on how to fix this?"

Using Drawings in Microsoft Word (web app) breaks after inserting more than 2-3 text boxes and shapes. The error typically displays as "This page is slowing down Firefox..." Steps to Reproduce: -install Firefox on a Windows 11 machine -sign into Microsoft 365 web -create a new word document -click "insert" in the top list -Click "Drawing" in the menu that appears -Insert multiple shapes and text boxes with text