Ngwaahịa Niile Community Forum

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.

Recently a tiny icon of an empty shopping cart has been superimposed at the top right-hand corner of the Firefox icon in my system tray. I want to get rid of it. In addition, just in the last few days, I'm being asked to choose among profiles when I sign onto Firefox and I want to have only one default profile and to avoid that extra step in signing on.

i am unable to open a specific profile as i want its always taking me to last profile i used .I tried getting help from AI chat bots and made a short cut for a profile but at the end even its opening the last profile i opened.

Dell windows 11 computer self destructed and crashed hard. Lost Thunderbird emails but have an Acronis cloud backup. Have purchased a new Dell EBT 2250 computer with windows 11 pro.

QUESTION 1: What are the proper procedures of installing Thunderbird and recovering my past "stuff" which was located at C:\users\My-Username\AppData\Roaming where Thunderbird kept my email data..If I install Thunderbird on the box, it would create that structure to create the Thunderbird data folder.

QUESTION 2: What are the proper procedures in recovering Thunderbird past data before I open it to my email server (Yahoo) where I have directly been maintaining my new emails via browser. I was going to install Thunderbird, then replace the Thunderbird folder under the user/username/AppData/Roaming, but when installing TB forces you to give an email account and P/W to log into your email. I do NOT want to have the email at Yahoo brought down before I can confirm I have restored all my past emails from my backup Thunderbird fold.

Question 3: Is there a way of installing TB in order to get the structure it uses, then overlay the TB structure under my user id?

I didn't want to restore my new Desktop with the OS recovery method because of the completely different hardware that OS would encounter once it tried to come up under a completely different hardware environment.

Thanks to anyone who can help me in what I should do, Floyd Smith

With the profile system, which I just used to try and fix another problem. Deleting them doesn't work I've tried manually deleting the profiles as well but they still show up in the UI and it just recreates the folder again if you try to delete it or open it. If you use the UI to try and delete it the instance and page it opens is simply blank. And now the profile I'm trying to delete isn't open. I'm trying to delete it from "original profile" and when I do it opens the a new instance of firefox with the profile I'm trying to delete with in the address bar: about:deleteprofile but the screen is empty.

I want to keep the original profile but the process is confusing to me. Can you tell me a simple way to keep the original profile or else set the original for me.

Thanks

Boyd Proctor

после обновления в панели инструментов появилась вкладка профили и она мне даром не нужна но хуже всего что теперь файрфокс каждый раз перед запуском заставляет выбирать профиль и ни какие настройки не помогают! что только не пробовал все бесполезно -- вечно выскакиевает это окно с выбором профиля! какой [edited] мог такое придумать??? и как избавится от эт ого [edited]!!! мне нужен обычный браузер каким он был до версии 150 без [edited] вкладок и [edited] ИИ

I have moved my Thunderbird data from drive C:\xxx\Thunderbird to N:\xxx\Thunderbird. The Thunderbird program remains on "C:\Program Files\Mozilla Thunderbird" How do I tell Thunderbird to find its data on the N: drive?

     Thank you,    Art Lieberman

Yesterday I was having trouble sending emails from one of my email accounts. I had not fixed that when I shut down for the night. Today when I turned my computer on, both my email accounts and my address book was gone

06 May 2026 USA Just to inform users:

All mailboxes and all mail in profile are catastrophically and irretrievably deleted when I: 1. Change the location of the profile folder. 2. Make appropriate change in profiles.ini reflecting the location change. 3. Launch Thunderbird in Offline Mode (launching in OFFLINE mode is the fatal event). 4. Mailboxes will appear during this one launched session

    but

5. If Thunderbird is closed while still OFFLINE, then a re-launch of Thunderbird in any state will reveal

     that all mailboxes and all mail have been deleted.

All mailboxes, and of course, all mail in the profile are catastrophically and irretrievably deleted. I was lucky that I made a backup before changing profile location.

The deletion of mail and mailboxes occur at the close of Thunderbird's OFFLINE state. An examination of the profile folder indicates the destruction has occurred upon closing of Thunderbird in OFFLINE state.

It is not the re-launch of Thunderbird that causes the catastrophic deletion. The deletion occurred when Thunderbird was closed in its OFFLINE state.

To successfully change the profile location I must: 1. Make the change to profile location. 2. Make the appropriate change to profiles.ini 3. BE SURE to make the FIRST LAUNCH of Thunderbird in ONLINE mode--ONLINE only. 4. Once 1,2,3 are done, then Thunderbird does not corrupt the profile folder.

Conditions that MIGHT make my configuration uniquely affected: 1. I use Proton Mail Bridge in conjunction with Thunderbird. 2. My Profile folder is on a network share that is letter-mapped in Windows. 3. I have about 10 email addresses in Thunderbird that are Outlook IMAP, Gmail IMAP, and of course, Proton Mail.

I've been using Thunderbird a couple of years in this configuration with no problems. I just decided to rename my profile. So, this is my first discovery of the problem.

Firefox kept losing all of my saved bookmarks and passwords. Each time it updated everything would disappear. I went to the folders where the bookmarks and passwords are stored and the profiles were there but Firefox did not list them when I searched (about:profiles). Tried numerous times to move the files to the current folder but the program still could not see them. Tried copying, moving, changing names of files, etc. Finally uninstalled firefox and attempted a new installation but it will not even open because it says it can't find profiles even though there are profiles in the profile folder. Now what do I do?

I am not a native English speaker, so I used translation. Please excuse any awkward phrasing. I previously updated my Firefox to version 150, but my tabs kept crashing roughly every 5 minutes. To solve this, I tried installing the Firefox ESR version. However, my profile had already been upgraded to the new version format, so ESR could not read my data. I then reinstalled version 150, but now I'm having profile issues again. I can access and launch my old profile through about:profiles, but I can't seem to save it directly as the default profile. I don't want to have to repeat this process every time I restart the browser. Is there a way to transfer all my data (bookmarks, saved passwords, add-ons, settings, etc.) to a new profile that works with the current version? Or, can I downgrade my profile so that ESR can read it? I have tried copying the files from %APPDATA%\Mozilla\Firefox\Profiles, but it didn't work after many attempts. Please help me. I really don't want to set everything up from scratch again. Thank you!

Much to my regret, I clicked on New Profile, and now all my shortcuts are gone. How to I go back???? Or, I suppose I could find out how to add shortcuts. But, just so you know, I am ANGRY that I am wasting time on this! Why couldn't you have left well enough alone????

How do i get my original profile page to always open when i open firefox instead of a new page without my bookmaks. This started right after my visit to Mozilla so i must have changed something. I don't know what!.

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]

Out of nowhere today I encountered with Firefox seemingly crashing. My laptop said it needed to reboot. Once rebooted I began to get the missing/inaccessible profile error. I tried to uninstall / reinstall but continue to get the error. When I search through for the missing profile per all guidance and troubleshooting Windows says it's not found. When I use the "run" it doesn't bring me to a folder but to a notepad type screen (copy paste below). I do not see where I have any options. Would it be effective to just delete all Mozilla from my laptop? I uninstalled / reinstalled but same error.

[Install308046B0AF4A39CB] Default=Profiles/5yyitbs7.default-release Locked=1

[Profile1] Name=default IsRelative=1 Path=Profiles/cd6wstjp.default Default=1

[Profile0] Name=default-release IsRelative=1 Path=Profiles/5yyitbs7.default-release

[General] StartWithLastProfile=1 Version=2

[BackgroundTasksProfiles] MozillaBackgroundTask-308046B0AF4A39CB-defaultagent=2eq3b8bj.MozillaBackgroundTask-308046B0AF4A39CB-defaultagent MozillaBackgroundTask-308046B0AF4A39CB-backgroundupdate=1syr00zv.MozillaBackgroundTask-308046B0AF4A39CB-backgroundupdate

The question has been edited after doing further testing on the issue.

During the last week or so I have encountered the issue that one or more of my Firefox profiles keep resetting after every update.

I noticed there's couple of threads with similar issues already but the generic profile restore instructions are not helping at all since it seems that Firefox is actually wiping some files. I'm not currently sure what causes the files to be wiped, but it's either related to rebooting the PC or starting / closing Firefox. The file deletion also doesn't always hit the same profile either.

I'm running Firefox 150.0.1 for Arch on CachyOS.

I did a clean reinstall of Firefox. After the install I created 2 new accounts in addition to the one that's pre-created on install. All of the profiles work as expected at this point.

The profiles seem to have files in three places

• $HOME/.cache/mozilla/firefox
• $HOME/.config/mozilla/firefox
• /run/user/1000/psd/

The issue seems to be that after a reboot the files under /run/user/1000/psd/ are missing. Both of the other locations seemingly are unchanged but under $HOME/.config/mozilla/firefox the linked files claim no target in /run/user/1000/psd/ is found.

When looking at the missing files, it seems that in total 6 folders have been wiped at the time of testing. All of the wiped directories were ending as ".Profile 1" or ".default-release". Directories ending with ".Profile 2" or ".default" were still there. At this point I'm not sure what is causing this but it seems to explain why the profile is inaccessible.

Manually restoring the files under /psd/ seems to fix the missing profiles completely.

Been using Firefox for 20+years in poway, ca now in Oregon City, somehow I ended up with 3 profiles, I would like to merge at least the bookmarks and delete 2 To stop confusion, thanks Ralph Kirn

When I try to browse or download another copy, the error message "Your Firefox profile cannot be loaded. It may be missing or inaccessible" appears.

How do I fix this?

Thanks