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Linux User So. I recently followed a Mozilla guide, previously posted, and something that I did, or changed, I now have a very annoying "profile" name in the title bar. Further to that, I now have an additional menu option called "Profiles", with --"profile --Add Profile

Manage Profiles

I have never had or seen these items, except when I've moved my profile from an old computer to a new computer, using the console of "firefox -P" command.

It is becoming very annoying as I only have one profile, and I don't want an more.

Question. How to I block the display of 'profile information' ? Thanks

Hi,

When I opened Firefox today, it asked me which profile I'd like to use. I named one Katy and then continued. Now, I can't see any of my bookmarks, none of my passwords are saved, none of my sites recognized. I've been using Firefox for years. Everything I have is saved there. I just want my old stuff back. I'm signed in on my account, but can't see another profile that I can choose. My phone still has all the passwords and bookmarks from before but I I can't see what profile I'm signed in under. Can anyone help?

Thank you!

Katy

We are currently rolling out a profile management solution based on Ivanti User Environment Manager. In order to configure file includes and excludes in the profile management tool, we have to “standardize” the Firefox profile path in the filesystem. We have implemented a PowerShell script, which reads the currently used profile from %appdata%\Mozilla\Firefox\install.ini, renames the appropriate profile subfolder to “firefox.default-esr” and replaces the entries in installs.ini and profiles.ini.

The script seems to be reliable. However, for around 10% of the users, we are seeing issues when the user launches Firefox after the “firefox profile migration” happened. Firefox opens but none of the GUI controls is accessible. Firefox is completely unusable. See screenshot attached.

We do have workarounds to resolve this issue, such as completely wiping the %appdata%\Mozilla\Firefox folder and let Firefox re-build everything from scratch. But we are still trying to find the root cause the issue, because our customers have more than 100k clients, what will be a big impact and hard to handle for the helpdesk.

We are currently unable to reproduce the issue on test clients. Even copied Firefox profile folders form affected clients don’t show the issue on other clients.

Therefore we want to find out and ask for your help:

- Is there a supported way to “standardize” the filesystem folder name of the Mozilla Firefox (ESR) profile of a user? - What are the files within a Firefox profile that are required for the profile and the application itself to properly start? - Do you have any idea which files in a Firefox profile (in a corrupted state) could cause our issue?

My power just went out for a second, now Firefox its acting like I've never used it.

I've never had this problem. Firefox has worked just fine for years. I have never had an issue with FireFox. Now I'm being told to select a profile like there isn't a set of folders with files dating back to 2021 sitting next to these fresh new folders full of files all dated to today.—I don't know shit by the way, Google told me where the profile stuff is or something idk im pissed.

How do I get Firefox to recognize the same old mountain of files its been using to store bookmarks, passwords, and all the rest is right under its stupid nose? And no the about:profiles page just gives me another blank profile to choose.

funfunfun

If I'm not mistaken, between FF146 and FF147 it appears the location of the profile directory has changed. It was:

   /home/<user>/.mozilla/firefox  

and now is

   /home/<user>/.config/mozilla/firefox

Is that correct?

I recently upgraded Thunderbird from v140.7-ESR to v147-Release and would be grateful if someone could answer some questions.

After upgrading I noticed there are 3 profile folders even though I am the only user of my Win11 laptop.

Profile Folders 92yfgi88.default-esr - 3.654 GB - 2026/01/23 12:50:27 >> My profile jf63jfuk.default-default - 1.533 GB - 2024/06/05 21:27:32 y9efj7q9.default - 47 Byte - 2026/01/23 12:30:15

The folder y9efj7q9.default only contains 2 files - parent.lock (0kb) and times.json (1kb).

1. Can I safely delete profiles I don't use?

2. Why is -ESR still shown at end of my profile folder name? - I thought it would be renamed when I changed to the release channel version.

3. Can I manually rename my profile folder? - I know I can rename a profile using Profile Manager but this doesn't rename the folder.

4. If not possible to rename my "92yfgi88.default-esr" folder, I assume I can just copy it's contents to another new profile folder and tell TBird to start using that?

5. Can I use Windows File Explorer to delete/rename profiles, or must this be done from within Thunderbird?

Also, any idea why Thunderbird Notifications still show as coming from Mozilla Thunderbird ESR, even though I now use the Release version? I've checked Windows 11 System > Notifications and it is still shown there as Mozilla Thunderbird ESR.. Why? and how to fix?

Thanks in advance..

As the title says, when i go to about:support, and click the open profile folder, i wanted to install a customization to allow me to edit the default tab background, but for some reason i do not have admin privileges in that folder, i can't access anything, i can't edit anything nor create a new folder, even rename it. It says that my own computer does not have admin privileges inside that folder.

I have two personal Thunderbird accounts that were under two other email addresses on an old computer. They are [email1] @mlecwb.net and [email2] @mlecwb.net

Can I access them another way, since that computer is not working well enough to download emails? Plus the old email addresses will be disappearing with the the company l have the email addresses under.....

Then if I can get into the old messages, can I download and save some of the messages - or at least important ones in specific group files - onto another computer or a laptop? Or even on a CD?

Also, could I still use Thunderbird under another email address?

Susan Clark Harris [email3] @outlook.com

I tried to transfer my Thunderbird e-mail account to a new Laptop. I followed the instructions for using an external harddrive. I copied my profile , connected the external harddrive to the new device and filled my profile in. But actually I don't find Thunderbird e-mail in the taskbar and I can't access to it. What do I have to do?

I use Thunderbird 115.18.0 on a Windows 7 machine. I wish to transfer all my Thunderbird data to a machine running Linux Mint 21.3 which has Thunderbird 128.12.0esr. I have not been successful after many tries. Could this be because the Thunderbird revisions are different? If so, can I get 115.18.0 to install on my Mint machine? If not how should I proceed? I have already tried creating a new .thunderbird directory with ********.default directory from the other machine. I have also tried a new .thunderbird directory with a the ********default-release directory as directed by one site.

Just lately, Firefox has been going on about Profiles, I don't know why. I have no need for such things, yet in my Windows menu, everything says "– Original profile" at the end. All this does is make things difficult to see. How can I get rid of it, please?

Before i got the Profiles update that rolled out relatively recently, i created another firefox profile from the "about:profiles" page. I do not see this second profile in the new Profiles tab in the menu in my default profile. Is there a way to transfer the profile, maybe mess with the files and the folder of firefox, so i will be able to switch profiles from the Profiles tab, and not go through "about:profiles" every time? or just create a new profile and tell me how to transfer the data, where to find the existing one thanks.

We are unable to sign in to thunderburd

using correct crudentials. We wen to geek squad to correct this issue. He installed webnet as a work around.

He said we would not lose any thunderbird emails however all the new and saved emails are no longer available to see or open. We would like you to reinstall thunderbird and restore all the lost emails. How does this get resolved?

I moved to a new PC and copied my thunderbird profile for my emails. I do not have access to my old PC at the moment. Is there any way to "log out" or disable the emails on the other PC by deleting the thunderbird profile access or similar?

I could go manually through google to log them out, but it will also remove the access on the new PC and in this situation there are a lot of accounts and the setup is a hassle.

At startup, Firefox starts with an account setup screen. I have been using current setup for 3 years. Tried troubleshoot mode to no avail. Had same problem 3 years ago.

I tried to start Thunderbird and it would not open. There was a message that read, "Your Thunderbird profile cannot be loaded. It may be missing or inaccessible." After trying to fix it and nothing worked, I uninstalled and reinstalled Thunderbird. Now all of my contacts and data is gone. When I tried to use the import tool I selected import from another Thunderbird installation and I can't get past the continue button.

How do I recover all of my data and contacts/addresses?