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Who decided to attach everything in my browser to a profile that can be easily deleted???!?!?!? Just lost all of my work shit because I tried to turn off this dumb feature I wasn't using and now everything is gone!!! History, passwords, bookmarks, sessions, everything! Never even created any profile, the browser just updated and necxt day all of my settings were tied to this dumb bullshit. Stop moving all of my data without notice or permission.

Almost locked my out of my work email because it thinks this is a different device now!!!!!!! [expressing disappointment]

Quick breakdown: I had my old boss's email loaded in Thunderbird for a short while Didn't want to be invasive after project ended Removed profile from Thunderbird Then Shaw and Rogers Merged - Sold email service too 3rd party Easy-On-Net Easy On Net dropped the ball and all of the historic folders and contents were lost when Shaw/Rogers severed their connection Can I recover up until the point I disconnected his old profile?

Hello! After a Windows 10 update (around September 5, 2026), Thunderbird stopped receiving Gmail messages. Laptop: Dell, Windows 10. Account: Gmail. The problem occurs both in Russia and abroad. My emails were organized into a folder structure created inside Thunderbird. The most important thing for me is to restore this internal folder structure with all its messages. What we tried: • We kept the old Thunderbird profile folder as a backup and created a new profile. • In the new profile we switched the account to POP3 so that emails are stored on the computer. • Thunderbird downloaded the emails, but only up to a certain date (around 2023). Newer messages did not download. • The old folder structure did not appear in the new profile. Thunderbird version: [version]. Authentication method: [OAuth2 / normal password]. Error message: [error text]. Could you please advise: 1. How to restore my old folder structure from the saved profile folder? 2. How to make Thunderbird download all emails, including the recent ones, and keep receiving new mail? Thank you!

Hi, hoping someone could help as I am struggling to get my information back. I am using Ubuntu Cinnamon.

Thunderbird crashed last night, wouldn't work, tried safe mode. Nothing fixed it. It hung when opening up and after 30 seconds said force quit. So I was forced to reinstall. I did a manual backup but not using the inbuilt tool as I couldn't get into Thunderbird. I just copied the data from username/.thunderbird

After spending a long time uninstalling. Because it reached 78% and then crashed on uninstall. Eventually after reading various pages on the internet I managed to reinstall from the Ubuntu software manager using the latest snap version. (Which I am not sure was what was actually installed previously).

However having used thunderbird for nearly 20 years or so. I have a username/.thunderbird folder. And when I moved to this platform, I have a snap/thunderbird/common/.thunderbird folder.

I installed this new distro 2 years ago, and remember having issues getting my data into the system under Snap. But eventually got it to work somehow back then.

However since reinstalling I cannot see the last 2 years of emails, archives or data. It has launched into a 2 year old profile. I appear to have lost most of the emails from the archive folders (but kept the folders) removed all of the personal folders but then dumped all those emails into my inbox. Giving me 6500 emails that were in various personal folders. (I don't get 6500 emails in a year so don't know what has happened.) It has even changed all of the new dates to the US format, so nothing makes any sense.

I now have 2 Thunderbird profiles, over 12GB in size. And have apparently lost 2 years of my life. But reading support pages, suggests I should be okay because thunderbird doesn't delete data when you reinstall?

I have looked through various other threads which talk about pointing it at the profiles and mail boxes, however nothing works.

Any help much needed.

After new installation I want to use my profile of the former installation. In principle I followed the procedure of the article "An einem anderen Ort wiederherstellen". After that when starting thunderbird it always asks me to create a new account.

Does anyone know what is missing?

I just updated my browser and now I am unable to access my work profile because FF made me choose my original profile because they both use the same email. I would rather kill the original account and get back my work one. Can I do this?

Hello,

I need clear instructions for completely disabling/removing Firefox's local profile system from my Firefox installation.

I want to use my Mozilla account only, without having separate Firefox profiles such as “Adina” or “Profile 1”. I do not want Firefox to create, display, or require local profiles, profile selectors, or profile-specific icons.

My current situation is:

• Firefox has created two profiles: “Adina” and “Profile 1”.
• My Mozilla account is the account I want to use.
• I want my Firefox data to remain associated with my Mozilla account.
• I do NOT want to manage separate local Firefox profiles.
• I want Firefox to behave as a single browser connected to my Mozilla account, without the new profile system.

Please tell me exactly how to disable the profile system completely, if this is possible in the current Firefox version. If it is not possible, please explain why and whether there is an official setting or supported configuration that makes Firefox use only my Mozilla account without these additional profiles.

Please do not just tell me how to switch between profiles or set one profile as default. I specifically want to disable/remove the profile system itself.

Thank you.

Hello, I urgently need help recovering emails and archive folders that have disappeared from Thunderbird.

Here is what happened: I had an email account configured in Thunderbird using POP3. Over the years, all the emails and the entire email history were downloaded and stored locally in Thunderbird. I also had several archive folders containing important emails and documents.

The mailbox was recently moved from the old mail server to a new mail server using IMAP. The account was then set up again in Thunderbird as a new IMAP account.

The old POP3 account/configuration was left untouched, because I expected the old emails and folders stored locally in Thunderbird to remain available.

However, after setting up the new IMAP account, I can no longer see the previous email history or the archive folders from the old POP3 account. Some of these folders contain very important documents that I need to recover.

I would like to emphasize that I am not asking to recover emails from the old mail server. The emails and archives had previously been downloaded and stored locally in Thunderbird through the POP3 configuration.

Could you please help me determine, how I can locate and restore the old Thunderbird profile or Local Folders? The emails and archive folders are very important, so I would really appreciate detailed instructions on how to safely recover them. I have not intentionally deleted the old emails or archive folders.

Technical information: Email address: biuro@wojciechprzybylski.pl Old mail server: server.go4win.pl Old account type: POP3 Approximate date of the migration: 15.09,2026 Missing folders/emails: Archiwum

Thank you very much for your help.

Best regards, Halina Kaczyńska

I had two profiles set up in Firefox that are not showing up now after restarting my computer. One I have been using for YEARS. I have hundreds of bookmarked pages and saved passwords that I cannot access now. I also have a second business account that is not showing up anywhere and I need for an extremely important meeting in a half hour. This is disastrous and I do not understand why your browser did this.

I've been using Firefox for the past few months, and I've noticed a strange issue that happens occasionally when I launch the browser. It's almost like Firefox partially resets itself. My extensions are still installed, but they stooped working and their stored sign-in info like in Bitwarden or Raindrop.io is gone. I have to go into the Extensions settings, disable them, and then enable them again to get them working. For example, I use a Speed Dial extension. After one of these sudden resets, my homepage is still set to the Speed Dial page, but it just shows a blank page. I have to go to the extension settings, disable the extension, and enable it again before it works.

Some of my Firefox UI settings also revert to their defaults. For example: - The bookmarks bar, which I have set to never show, appears again. - The sidebar, which I moved to the right side, moves back to the left. - Other UI elements and customization are also reset to their default states.

I'm not entirely sure what triggers this. I think it happened once after a Firefox update, but the next time it happened there was no update involved. Has anyone experienced something similar? What could be causing this, and is there a way to prevent it from happening again?

Essentially, I want to back up my Thunderbird. The standard way seems to be via Export / Import, but there is an implied limit of 2GB. The export function has successfully ended and produced a file of 15GB. Can I rely on this? (In the sense of being able to Import it should I need to?

Thanks in advance for any help / advice you can give.

Hi I am an older person and have lost my profiles on thunderbird email - one is [redacted]@xtra.co.nz and the other is [redacted]@xtra.co.nz. We are in NZ and accidently deleted the Thunderbird profile and not the corrupted new profile I was setting up. Thank you. Gloria Sandbrook. I still have [redacted]@xtra.co.nz on my phone for communication. Cheers.

I have posted another question about my corrupted TB profile and restoring it. Having done the restore and looked through the profile folder it is clear that this is full of old files that are no longer supported/needed.

Is there a utility that removes these old files?

I'm not sure if TB updates should remove them but it doesn't appear to have done so.

When I read https://kb.mozillazine.org/Files_and_folders_in_the_profile_-_Thunderbird it is clear that there are so many of these that doing it manually would be prone to error. That resource also says it does not know what some of the files actually do.

Is there a better resource that lists just the latest files maintained by Mozilla?

If I do a new export does it only export the files it needs? The last time I ran an export the resulting zip did not contain all the files from the TB installation but I have no idea why.