Firefox Community Forum

I really don't need a profile in Firefox and if I delete the profiles listed, you will wipe out all my bookmarks/settings. Why do I need to see a yellow triangle on the Firefox app icon?

I did the profile thing and there's only one blank profile showing.

I did the CMD prompt -P and there is only Default showing.

This new upgrade has destroyed everything

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.

opened firefox saturday and screen was totally different than what i had. guess it updated, but not returned to my profile. have tried to open my profile and succeeded, but can't get it to come on automatically when i open firefox again. how do i open the profile i want and then keep it opened?

Mozilla made an update of my Firefox installation on my Win11 laptop. all my password disappeared as well as my history and bookmarks.

I have now a virgin installation and is starting from scratch.

Now I get this error message: "This profile was last used with a newer version of this application. Please create a new profile." I deleted met shortcut and I opened Firefox by using Windows search. Now I see 4 profiles! I think I do not need to create a new profile. Maybe delete 3 of them ? What to do ? And, how?

After closing Firefox, I often get a message for "creating a new profile". It seems difficult to do this and it would be very helpful to have a link where this can be easily done. Thanks for all your help. Alok Bhargava [edited email from community support forum]

I'm a Chinese firefox user, so the following descriptions are translated and may not be so accurate. And the attached image is also Chinese, if necessary please use a translation app or somewhat to see it. I have only one default profile in my Firefox account, and I have stored a large number of passwords and bookmarks in this default profile. For certain reasons, I signed out of this profile while retaining the local data such as passwords—meaning that, apart from not being logged in, my browser state remains exactly the same as before. Now I wish to sign back in to enable synchronization. I can see a "Sync and Save Data" button prompting me to log in. After clicking this button, I am asked to enter my username and password, but then I receive a message stating that I have reached the account limit for this profile, and that this profile was previously synced to another account. This is absurd, as I do not have another account, nor have I ever synced this profile to any so-called other account. As a result, I am unable to sign in on this current profile.

Before the new profiles update in Firefox I was using the old version of creating profiles and I want to move that profile into the new profile method. Is that possible?

I'm a bit puzzled here. Initially, I tried to use the new built-in VPN for only a single domain. That doesn't work at all. Until it does, I tried to get it through other ways. Containers don't work, private windows neither, they both just inherit the global VPN setting.

So I moved on to profiles. The web found me a Mozilla support topic that suggested to open about:profiles and create a new one. Did that, opened a window for it, but couldn't get it to reopen on any easy path, just through opening about:profiles and clicking one of the many buttons again.

Then I found another description that used the "Profiles" menu. Never seen that before (probably because the menu bar isn't visible by default). Created a new profile there, too, and opened it. After restarting Firefox, all was gone! My original profile with everything was totally inaccessible, like a full data loss. Google search AI in a Chrome browser helped me out and explained what I need to do (in about:profiles, select the old one as default, then restart) to get my environment back. After that I deleted all newly created profiles and then their directories again.

Started over with a new "new" profile and continued there. Now I wanted to activate the VPN in there. It asked me to log in again, which was a good sign because finally I got a Firefox window that didn't know about the other window. But then the next failure: I couldn't log in with my credentials because that profile was already used in the other window/profile. Again, they're not completely separated from each other and there's some hidden link between them.

So, do I need a new Firefox/Mozilla account only for a separate Firefox profile? I can happily use my one account on different devices but not on the same device? Can I unlink the main profile from my account again? I don't see a logout button anywhere, I'm just logged in invisibly.

This morning when I started up Firefox it had a pop-up about the new profiles feature, asking to create a new profile. Just out of curiosity I clicked the create profile button to see what the interface would look like. Since I didn't actually want to create the profile I hit the delete button, but nothing happened. So I closed the window. I then tried delete the new profile (then called "Profile 1") by hitting the trash can from the choose profiles screen. Still nothing happens. At this point my original profile window is still open, but I close everything to restart Firefox in hopes that it will allow me to delete this profile I never wanted to begin with.

The Choose profile window comes up, I select original profile and nothing happens. I can open the new "Profile 1", which I have since labelled "Bad Profile".

D:\Users\<USERNAME>\AppData\Roaming\Mozilla\Firefox\Profiles doesn't appear to have my original profile anywhere.

I'm deeply concerned this beta feature I never asked for has deleted my original profile when it should have deleted the new profile.

When I try to edit a profile (name, color theme), about:editprofile returns a blank page.

It was working just a few minutes ago, but stopped while I was trying to select a new theme.

I've restarted the browser a couple of times and looked at help articles but cannot figure out how to fix it.

I have a problem with the browser automatically starting when I start my PC. I have this feature disabled (!) ("Open Firefox automatically when your computer starts up" turned OFF) Everything was fine, but then I started using the "profiles" feature - browser start's to open automatically when i start up my pc.

when I created a new profile (in addition to the main one). The problem appeared, and that was a long time ago (at least half of year ago it was already as now). I hoped that it would be fixed and didn't write to support. Windows and the browser itself have been updated several times since then - this did not help.

Changing the settings in different profiles, creating / deleting them, and other basic actions did not help. What happens is that the browser ALWAYS opens when I start the PC (Profile selection tab, i have turned ON "Select profile when Firefox start up")

I tried turn off \ delete all plugins, turn on\turn off almost every default setting, no effect. What should i do?

Browser version - 150.0 (64-bit) (from "settings-about firefox") Windows 11 Pro 25H2

Currently have 4 profiles in Firefox - but problem appeared after creation on 2nd profile. "Open Firefox automatically when your computer starts up" turned off in every profile.

This afternoon, I clicked on a link from an email and for the first time got a choose a profile pop-up. I do not want this; I have read info on Mozilla and elsewhere about its purpose but it doesn't say how to just stop the pop-up - there should be an option just stop the pop-up because I don;t want to have to choose amongst options. I have started copy-pasting the links in emails and going to Chrome and will seriously have to reconsider using Firefox of this continues. I don't want to have to type about:config or anything - this should have been an opt out or opt in thing and I want out. Thank you for your help.

Do I have to be logged into an account to use profiles? I'm on my work computer on which I don't log into my account and "Profiles" option does not show up on my toolbar.

Is it possible to sync all profiles among different devices? So they are tied to your mozilla account, then you get the option to choose which profiles to add on a different firefox browser. Mac and windows for example.

Also it would be nice to be able to change the "banner?". Basically the thing surrounding the profile image.

I have created two profiles using the new functionality that is accessed using the "hamburger" or three horizontal lines menu. I want to open one profile at times, but the other at different times. I can only specify a default profile for initial browser start, or to have the browser make me choose each time. Either of these options mean that I have to go through extra steps to launch any profile beside the default. This effectively makes the new profiles less useful to me than the profile manager that has been around for much longer.

Searching for help online has led me to several suggestions to create shortcuts that use the -P "profile name" switch for each profile. This is out of date because the profiles I can access from the command line bear no connection to the ones I have created as described in the above paragraph. They are only the ones I have created using the (old) profile manager from the profile manager in about:settings.

Did I miss something, in other words is it possible to do something similar with the new container profiles as I can with the original config profiles?

I want to restore a previous profile which I can see on File Explorer, but no previous profiles appear on the About Profiles page. How can I access this previous profile?