Firefox Support Forum

Hello, I have a weird bug with the firefox browser causing weird graphical glitches only on the main screen when a HDMI cable is plugged in on the duplicate mode. I have found that is is only on firefox and not my desktop or any other programs. Firefox is up to date and the issue is fixed when the HDMI set to extend

I hope you find out why this is happening and fix it swiftly Thank you -Dominic

WP10 / Firefox / Thunderbird :

There are two different email accounts/names in Thunderbird. Only the original one shows in Firefox Settings Passwords.

How can I have Passwords also recognize and display information for the second account?

Appreciate your help.

Thank you.

Today my PC has launched Firefox 3 times on 3 occasions before I could tell my PC to launch McAfee. I shut off Firefox as soon as it would let me and proceeded to McAfee alright. I never use my computer without the antivirus/firewall etc. running even if I am not on the web.

I checked Firefox settings but could find nothing specific to my issue. I have not made any changes to Firefox or any other software since the last Firefox upgrade. My PC runs Windows 10.

Is there a switch or toggle I can use to ensure my PC waits before loading Firefox? This phenomenon is new today. Thanks!

I belong to almost a dozen regional 'yard sale' groups, and suddenly can no longer post 'for sale' in ANY of them including Marketplace. Yet in the same groups I can post and reply to messages

Once again Firefox has decided to take over and change all my settings! I had finally managed to prevent it updating, as each and every time I had to reinstall all my setting and extentions from scratch. Today, it decided to clear all my preferences and change itself to its own default settings. OK, so I can change my profile option, except all three are using the same defaults: I appear to have lost all my settings and extensions entirely. OK, I'll copy from my backup, but once again the three backup profiles are being overwritten with the defaults. Even my third backup of last March overwrites to the defaults! How and why is Firefox managing to keep overwriting my defaults to its own preferred settings? How do I stop it doing this and regain my own preferences?

I also tried Sync and now I am getting bookmarks from over five years ago! And once again my settings are changing to the defaults. Surely a Sync should overwrite with the current bookmarks and settings not just keep adding more and more. I am now in a right mess again. Back to losing everything with updates. I am a great believer in the 'if it ain't broke don't fix it' mentality, but Firefox has broken itself and is refusing to allow me to change to how it used to be! How do I restore my own preferences and prevent Firefox from changing them to what it wants.

Suddenly I can't sign-in to Sharepoint or Sharepoint admin console using my normal Firefox window. It works with the private window, but not the normal one. I've tested on another computer with the same firefox account sign-in and synced and it lets me sign-in there no problem. I've tried "Refreshing" Firefox, and that didn't work. I've tried uninstalling Firefox, deleting all the folders in appdata, then re-installing. Then I tried again before signing in to my Firefox account or syncing anything and it still didn't work. Any other suggestions? All the other O365 cloud login sites work, just not Sharepoint for some reason! It'll ask for my login credentials, then try and load, and then ask for my credentials again, over and over. Windows 10 Enterprise, Version 10.0.19043 Build 19043. Firefox 126.0 (x64).

It takes a lot longer than it should to load my home page, MSN. This problem is more pronounced with Firefox than other browsers. What can be done to load the home page faster? And, in general to load websites? Can someone help? Thank you.

Sorry to have this same issue again, knowing full well it can happen after finding this some years ago (https://support.mozilla.org/en-US/questions/1319823), I tried to carefully connect two older PC devices back to firefox sync, however on one I managed to enable sync before disconnecting my profile (it seemed as if reconnecting sync temporarily was the only way to disconnect a profile from firefox's UI - I should have been more careful and removed the profile from the filesystem level): at which point I polluted the sync server.

I've noticed that `about:sync` has an option under bookmarks/engine actions 'wipe bookmarks', which sounds exactly what I need, and if I watch what happens once pressed it does the right thing and repopulates the sever with the 'correct' PC's bookmark set (when run from that PC), however it also says 'other devices will act like a reset', which i'm finding NOT to be the case: eventually one of my other device repollutes the server with bad bookmarks which propogate.

I'm thinking the culprits are my phones, If I wipe and do a sync on a phone, my phone's bookmarks stay polluted. If i'm right about that, I think my question is: can I wipe my profile (or preferably only my bookmarks) from my phones' Firefox without having to entirely uninstall/reinstall (or do you have any other advice for not re-polluting the server from some already-polluted device's bookmarks?

thanks in advance

One annoying page at handelsbanken is missing scrollbars, and there is no way to navigate down

I have a memory of a "always show scrollbar" but it seems gone. firefox 115.11 on mac

peter h

Within 24 hours this weekend I was notified by my anti virus application (Avast) that they are no longer supporting Firefox browser (to concentrate on Outlook and Chrome), and a political news website that I frequent (Meidas) blocked me with a "captcha" type puzzle. The website said my browser was mimicking robot or bot use. I was presented with a puzzle requiring me to slide a tab rightward. It repeatedly told me I had slid the tab incorrectly. I believe all of this happened after an update of Firefox about the middle of last week.

Running under latest Windows 11 Firefox 126.0 will not start unless I click Run as Administrator. I changed permission for my User acct in Firefox to Full since I am the administrator but the problem persists

So within the past couple of days my twitter/x display setting suddenly switched to "Lights out" from "Default". I can reset it in t/x settings but if I close my browser it resets back to "Lights out" on reopen.

However, this same change happened with other browsers chrome and brave, but if I reset it on t/x it remains changed for those browsers if I close them and reopen.

When I say close I do not mean just that window/tab. I mean close the browser completely and restart it.

What do I need to do to get FF to retain this t/x setting?

Using FF 126.0 64bit on Win11

I have two monitors; I keep my taskbar on the right monitor and run Firefox on the left monitor. For some reason, whenever Firefox gets minimized, the window moves to whichever monitor the taskbar is on (I've done some testing to confirm it is specifically the monitor the task bar is on). Because I also run a program called max.to to separate my right monitor into different sections, this action of minimizing to, and restoring to, the wrong monitor is also resizing my Firefox window.

Is there any way, any option I've overlooked, that would get Firefox to minimize and restore to whichever monitor is is actually running on?

I've attached an image that shows, as best I can get it, the window moving over to the task bar monitor when minimizing.

I have Firefox running on Screen #3. The website that I use with my radiology clients opens popups and I want these to open on Screen #3 as well. However, they are opening on Screening #1. How can I get them to open on Screen #3?

Thank you.

hello team Firefox i am Aquib. i am very older user. my Firefox web browser in mac is very Awesome user experience. no lags no glitch no bugs. higher performance than other browsers. but after Firefox ver-120.0.1 Firefox getting lag and glitch in latest version Firefox please try to check in Youtube and switch mini screen to full screen getting lag please solve this problem. my problem is explain in given Screenshot. please fix it.

Hello, about 1-2 weeks ago a very strange problem occurred - on some pages videos don't play at all or play without a sound. Can anyone help me with this strange situation? For example, every video on youtube.com plays without a problem; on facebook.com every video plays with no sound at all; on some other pages video doesn't play at all. This problem is only with firefox, if I try to open the same videos with another browser everything is fine.