Все продукты: форум сообщества

I have moved my profile to a different location on the hard drive to make backups easier. How do I tell firefox where the profile is now located. c:\users\med\my data\PROFILES\mozillA\*.deFAUlt

I want to install Thunderbird on my new computer (Windows 11) from my old (Windows 10). But I cannot open the downloaded version of Thunderbird - it keeps saying there is no profile. Of course there is no profile before I have installed it! I de-installed and re-installed the Thunderbird program, but it keeps saying the same thing. How can I open Thunderbird to install the profile?

You forced me to create a profile and I lost all my Bookmarks.

Steps given do not recover them from the supposed online backup

How do I recover them?

The article explaining why one should not downgrade ignores a critical reason why one needs to downgrade and that is when it turns out that the new version breaks an existing website!

I got bitten by this when Firefox "upgraded" me to V143 after which point the ticket system I use to support my customers stopped working. That same ticket system continues to work fine in Safari, Edge, Chrome and Brave, etc.

Worse, when one does try to downgrade, the old profile gets removed which means you lose EVERYTHING you had (tabs, bookmarks and presumably all the settings and saved passwords, etc). You need to be keeping the old profiles around so that they can be accessed again should someone NEED to downgrade. Fortunately I was able to use Time Machine to recover the old profile --- but somebody just didn't think this through.

Much as I have loved Firefox over the years, I'm starting to feel that it's time to give up on it and move to something else.

Turning off automatic updates is not a solution because eventually one will choose to upgrade manually and most people won't remember to make a copy of their existing profile. Should one then encounter a problem, you're back to square one

Very disappointing .

I *think* I've followed the instructions, but I am unsuccessful in moving Thunderbird Profile to new PC. I copied old profile to external drive. I opened Thunderbird on new PC and found Profile folder. I went up 3 levels and pasted old profile from external drive into folder on new PC. But my old data have not moved. When I go into new Thunderbird and choose "open profile folder", it shows me 3 files: the two that the system created in the new download, plus the old Profile that I pasted there. The new version of Thunderbird uses the "new download" profile as the default. What am I doing wrong? Thanx!

I was positively surprised recently when the new Firefox profile manager (about:profilemanager) was introduced. https://www.tech2geek.net/how-to-use-the-new-updated-profile-manager-in-firefox-2025/ is an article about that.

However, I thought it's just a new visual UI with an in-browser switcher for the existing profiles (that I already had setup). However, it does not appear so.

The differences I see:

1. 1. 1. old profile management

• was managed by `about:profiles` or when starting FIrefox with `-P`
• is saved in `~/firefox` and the `profiles.ini` clearly and quite obviously mentions them there, so it's easy to manage them.

I also found this old support article: https://support.mozilla.org/en-US/kb/profile-manager-create-remove-switch-firefox-profiles

1. 1. 1. new profile management

• automatically asks on startup if more than one profile exists
• is managed by `about:profilemanager` or with the Firefox burger menu
• seems to be saved in `~/.mozilla/firefox/Profile Groups` (Linux path here) in some .sqlite files, and I do not quite understand the format. Not mentioned in `profiles.ini`.
• also, when you change something here (even like opening a profile?), you cannot open `about:profiles` anymore, because it says "Some Firefox process has made changes to your profile, […] you need to restart Firefox", only after a restart further changes would be possible, which I find quite confusing but it also indicates somehow the features belong together?

And this seems to be the new one: https://support.mozilla.org/en-US/kb/profile-management#w_whats-the-difference-between-profiles-and-multi-account-containers

1. 1. Questions

• What are the differences here (I may have missed)?
• How can the new profile feature save so few files? Is it technically called "profile groups"?
• And the most important: How can I migrate an old profile? (In order to use the new features and GUI etc. I quite like)

I copied a TB profile when backing up some years ago (I know this isn't the correct method). I need to open the "Sent" mail file in the profile. This file is listed as "file" under "Type." What program do I use to open this file?

I accidentally erased the icon at the bottom of my computer and now cannot access my e-mail through Thunderbird. Where do I look for my Thunderbird account? How do I get it back ?

I upgraded my PC, having backed up everything on Carbonite. On installing Thunderbird I cannot get it to recgnise and use my original Thunderbird profile downloaded from Carbonite. Peter Millar

For highly encrypted messages and sensitive information each time renewed or discovered for the first time cam be very intimidating for certain people. Based on the facts and past experiences, this has become extremely important to discuss and share knowledge with true and trustworthy people only to ours and others peace of mind and safety.

Hello! I just installed F-Fox yesterday and want to delete Google Chrome. However, my husband and I both used Chrome and I would like to add him to Firefox, so his history, passwords, etc can be imported but I don't know how to add his profile to Firefox along with mine.

Please help.

The contents of my thunderbird folders are not shown although the number of email contained there is shown at the top oof thunderbird next to the folder's name (see images 1 and 2 for example). When a new email comes I can see it, but after clicking on it and seeing it, it disappears from my folder. Nevertheless, all emails are there because if I go to the troublshouting mode I see then (see images 3 and 4). I do not have any special extensions or themes (see extensions.jpg and Themes.jpg).

Any ideas on how I can resolve this issue? Best, Haris

I do not want to use Thunderbird anymore. So I deleted my two mail accounts, but thunderbird still remembers them - this I do not want. And how can I close thunderbird definitely, thunderbird also forgot already the main password... Thanks for help!

Hello,

We are trying to automate updating Firefox ESR from 32bit to 64bit. There seems to be an issue with getting user's profiles to properly migrate for ESR. If we do a plain 32bit uninstall and 64bit installation, a new "default-esr-1" profile gets created (which is expected behavior from these Mozilla docs for new installs). But, when we set the MOZ_LEGACY_PROFILES=1 policy, this reverts to using the "default" profile instead of "default-esr" profile that was previously in use.

Are there any known ways around this which does not require user intervention to manually change back to the "default-esr" profile?

Thank you

Desktop PC running latest Thunderbird and Firefox. Started Thunderbird, instead of the usual tabs opening, it appears to have forgotten my accounts, asks for my email address, i.e. starting from scratch again. Starting Firefox, all previously-open tabs have gone, though bookmarks are all there.

Has there been some update which has wiped or reset Mozilla data? Yes, obviously I can go through setting up Thunderbird again but that will take quite some time and yes, I can use Firefox but many of the tabs I had open were there for a reason and it will take a while to find them all again.

Is there any way that the previous state can be recovered? My laptop has both applications running fine and I have paused Windows updates for a week, just in case the latest update caused this. Thank you.

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

After using Thunderbird for years, I switched to Gmail. I would still like to be able to access my old Thunderbird files but, after updating Thunderbird, it is defaulting to my current Gmail files. How do I recover the original Thunderbird email files?

A newer version of Thunderbird may have made changes to your profile which are no longer compatible with this older version. Use this profile only with that newer version, or create a new profile for this installation of Thunderbird. Creating a new profile requires setting up your accounts, calendars and add-ons again.

More information…

THIS NEEDS AN OPTION TO CONTINUE USING OLD PROFILE. YOU JUST MADE THUNDERBIRD USELESS TO ME. DO NOT KNOW HOW TO CREARE A NEW PROFILE. SHOULD NOT NEED TO. CAN NOT START IT AFTER MANY YEARS OF USE. PREFERRED OLD VERSION OF ABOUT 5 YEARS AGO. JAY