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I've used Firefox as my default for years and years. Yesterday I got some popover telling me I had to create a new profile or I'd lose all my Firefox data, history, bookmarks, etc. It would not let me avoid this. So I did. Still lost all my history, started over. Today it's doing the same thing. What's up? I don't want to move to Chrome.

I already had two separate "old style" profiles, for personal and work browsing. I just created a new profile (from my "old" personal profile) using the new Profile Manager. I managed to import data from my "old" work profile to the new one. In this process, I ended up creating two new work profiles (with different names). Now, I simply cannot delete one of them. Clicking on the delete icon on the profile manager opens the new profile, and I understood I should see a confirmation dialog corresponding to the "about:deleteprofile" URL, but nothing is shown on this case. Also, this new browser instance doesn't show any profile management menu items.

I tried manually removing the profile directory on ~/.mozilla/firefox hoping Firefox would understand it is gone and would automatically get rid of it, but instead it automatically creates a new empty profile on the same directory, and also unmanageable and undeletable.

So, if someone could please tell me how I can get rid of this new bogus profile, I'd be very thankful.

BTW this whole "new" profiles is a cool idea, but IMHO it was launched in a premature state. They are prettier, indeed, but besides the above annoying bug, there are no CLI args to switch directly to a "new" profile or open the new profile manager. This makes it impossible to use apps like Junction which allows you to choose a browser when you try to open a link (which worked just fine with the "old" profiles)

Hello, I am using Time Machine to backup my Mac, but the tool excludes Thunderbird. In settings I have not excluded any files. My Thunderbird folder is fairly large, 25GB - thanks to the great archiving features of Thunderbird, How can I include Thunderbird folder to backups? Thanks in advance for helping. BR Tapio Heikkila

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.

Hello

I want some help please. When I open links from viber or discord, the links open in a new firefox window not the one am using at the time and they open on a no firefox profile window. I don't know what do and how to make the links open in the right firefox window. Maybe you can help me somehow?

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?

I have installed Thunderbird on a new computer and copied my profile from the old computer as per instructions on the Mozilla site. However on the install on the new computer the LOCAL FOLDERS, sub folders which I use as archive storage do not contain the messages as per the my old computer. The sub folders are named correctly.

I have attached photos of the sub folders from the old computer showing data in the sub folder and also the new computer showing no data.

Please advise how to retrieve the data for the new computer.

I copied my profile because I had to reinstall TB. When I copied it back, I got all my emails but not my address books.. How can I get these back? Also, I got my emails back but it didn't include the number of each. How do i get these back?

I deleted a profile from my Thunderbird account, but I keep getting a popup login screen. I can no longer access this profile. HOW can I get rid of this popup screen? It continues to popup every few minutes! Need it to stop!!

Hi,

I have transferred Thunderbird to a new computer. It opens fine, but it's looking for me to enter new info all over again.

So it looks like it is not finding the right info in the profile.ini file.

Please tell me how to fix this, and let me know in which folders the email information is stored, in case I need to back up all my emails.

In my Thunderbird email client I have 4 email addresses.

The program is in: C:\Program Files\Mozilla Thunderbird\thunderbird.exe

The Profile Folder in Thunderbird itself lists: zvhtqvg2.default-release-1

But in AppData\Roaming\Thunderbird\Profis lists 2 files: 0jyd0ev.default-release zvhtqvg2.default-release-1

In Windows(C)\Users\ted\AppData\Roaming\Thunderbird the profiles.ini file list the following:

[Install746F856C10C5FA7C] Default=Profiles/0jyd0ev.default-release Locked=1

[InstallD78BF5DD33499EC2] Default=Profiles/zvhtqvg2.default-release-1 Locked=1

[Profile1] Name=default IsRelative=1 Path=Profiles/0jyd0ev.default-release Default=1

[Profile0] Name=default-release IsRelative=1 Path=Profiles/0jyd0ev.default-release

[General] StartWithLastProfile=1 Version=2

[Profile2] Name=default-release-1 IsRelative=1 Path=Profiles/zvhtqvg2.default-release-1

Thank you, Ted

When i open firefox, i can choose what profile to open. I have two screens, so i was wondering if it was possible to be able to open both profiles i use, and have one on each screen. If not possible, would it be considered for an update in the future? It would make it easier, so i can have my personal profile on one screen, and my work profile on the other.

I've read the articles on moving Thunderbird to a new computer. My old computer died but I have a full backup and have replaced the Thunderbird directory a number of times according to the instructions to move TB to a new computer. I have even uninstalled and reinstalled TB to match the version on the old computer (140.4.0.0). It comes up and shows over 8,000 emails, but ALL are in the inbox and none of the probably hundreds of folders and sub-folders show up. I have found some of the names in the Profiles directory but they don't appear in the TB window.

I am using the new profile switching feature in the UI, from top of the hamburger menu. Firefox is my default browser on Windows.

Now, I want all links I activate from other Windows programs to open in a specific profile. I use the other profiles for auxilary tasks.

Is there any way to achieve this?

)Frode

I have an account on Ubuntu that has several mailboxes. I need to shift (migrate) this to a new computer with Debian 13. So far I have tried to follow the idea of copying the hidden thunderbird folder. When I start Thunderbird it has a "Setup your existing email address" page.

This is not easy.

I was interested in seeing how the profiles worked so I clicked yes to creating one, but once I set another one up I realised I would have to use a separate Mozilla account on it and I would prefer to keep everything on one browser and account. I tried to delete the profiles but it said it would delete all my bookmarks and data, is there any other way to hit undo or something and go back to the way it was before (without profiles)?

Hello, on my local disk I have Firefox for Windows (10) installed for more than 2 years now, and the location: %Appdata%\Roaming\Mozilla\Firefox\Profiles\xxxxxxxx.deault-release\storage\to-be-removed has more than 7000 subfolders and files that sums up to 4GB of data, dating from mid 2023.

I naturally assume that a "to-be-removed" named folder should have it's content removed by some automated task or maintenance service, right? Is this normal, or is there some bug in application maintenance / updating process?

Thank you

i previously set up profiles using about:profiles, but with the new profiles feature i don't see any of them showing up. i haven't found any articles that allow me to convert the files from about:profiles to use the new one.

i am not logged in to firefox on the others either.

is there a way to link the profile files on my computer to save my bookmarks and history? i don't know if there will be continued support for these files and want to make sure my bookmarks are saved for all of them. i would prefer to stay logged out of the other profiles.

Attached images include screenshots of the empty profiles (one from clicking the profiles from dropdown, one from clicking "manage profiles", and one with blacked out personal data from going to about:profiles).

I have previously made additional profiles on 'about:profiles', now Firefox has added an integrated profile manager accessible by clicking my profile on the top right. My old profiles are not available on this profile manager, but they are still available on 'about:profiles', so how can I transfer them without having to remake new ones?