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I'm running Firefox 122.0.1 on a Windows 10 desktop PC, with a profile which includes a userChrome.css file which makes several layout and cosmetic changes.

I also have a laptop (also Windows 10) which has an old Firefox 97.0.1 installation, and I'd like to make the same changes on this machine which I'm used to on the main computer. I copied my desktop profile to the laptop, to the same directory as its present profile, but when I rebooted Firefox the transferred profile wasn't recognised.

While doing the transfer I received error messages about some of the folders: Destination path too long. This despite the fact that the registry flag to accept extended paths is set to 1. I had to skip several folders in order to complete the transfer.

Could this be the reason why the new profile isn't being picked up? Or is it because the two Firefoxes are of different versions?

I'd be grateful for any thoughts. Many thanks.

I'm running Win10 and Thunderbird 128.6.0esr. I wanted to move my profile from C: to a different drive (in my case, the D drive). I Googled and got lots of hits, both on the Thunderbird support site and elsewhere, that seemed to indicate to me that some users were seemingly having issues getting this task completed.

Also, looking around in my Windows "AppData" subdirectories, I noticed that there are actually two "profile" directories.

For example: C:\Users\xxx\AppData\Local\Thunderbird\Profiles\abcdefgh.default C:\Users\xxx\AppData\Roaming\Thunderbird\Profiles\abcdefgh.default

Many of the instructions I found were dated from two years ago or more and only discussed moving one profile directory (the one in "Roaming") and I wondered if, in the interim, there's been an addition of a second profile directory that wasn't being addressed in the "old" instructions I was finding on the Web.

So instead of trying any of the suggested procedures I decided to try something else that seemed to be simpler and more straightforward to me. After performing the process I decided to try, testing seems to indicate it works just fine. However, I thought I'd leave this message to ask if there's some issue that can result by doing it as I did.

All I did was to create a new directory on my D drive to hold to two profile directories. Inside this new directory, I created two subdirectories called "AppData-Local" and "AppData-Roaming" to hold the two respective profile directories. With Thunderbird closed, I then copied the two original profile directories into their new respective directories on the D drive:

D:\Thunderbird Profiles\AppData-Local\abcdefgh.default D:\Thunderbird Profiles\AppData-Roaming\abcdefgh.default

Just to be safe, I then renamed the original profile directories under the "...\AppData\..." directory on C: so that if my idea went south, I could just restore the original configuration easily because they weren't deleted. So the original profile directories became...

C:\Users\xxx\AppData\Local\Thunderbird\Profiles\abcdefgh.default.delete_me C:\Users\xxx\AppData\Roaming\Thunderbird\Profiles\abcdefgh.default.delete_me

All that was left was to open a Windows "cmd" console window (running as administrator) and create a symbolic link in each of the original directories on the C drive that point to the new locations of the directories on the D drive:

C:\Users\xxx\AppData\Roaming\Thunderbird\Profiles>mklink /D "abcdefgh.default" "D:\Thunderbird Profiles\AppData-Roaming\abcdefgh.default"

C:\Users\xxx\AppData\Local\Thunderbird\Profiles>mklink /D "abcdefgh.default" "D:\Thunderbird Profiles\AppData-Local\abcdefgh.default"

(Note that I changed the "current directory" before running each "mklink" command to put the symlink in the right directory.)

Then, I started up Thunderbird and... it was as if nothing happened. Everything (old messages, settings, etc.) was still there exactly as before. So far, my limited testing seems to indicate that this process worked without a hitch. I even tried the Thunderbird "backup profile" feature and it created a zip file that seems to contain a subset of the contents of the "Roaming" profile directory, which I suspect is perhaps all that really needs to be saved in a profile backup? Right?

Just in case, I haven't deleted the original, but renamed, profile directories yet. I thought I'd post this message and see if anyone has a reason why moving the profile to a different drive by this symlink process is a "big mistake." Or even a "little mistake" for that matter.

I've been using what I gather is an "older" profiles system via about:profiles.

Now if I:

1. go to about:profiles and open my second profile in another window, 2. close second window and about:profiles page, 3. open about:profiles again in first window,

I get "Another copy of Firefox has made changes to profiles. You must restart Firefox before making more changes."

This happens every single time, even though I've made zero changes to profiles, and is extremely annoying.

Can/should I migrate my profiles to the new profile manager? How to do this?

I'm setting up Firefox on a new computer. I haven't done this for a while and the interface has changed, so I'm not sure how it works.

I want to move my Firefox profile to a directory in the Documents library to simplify backup. Following the Mozilla instructions I found, I opened about:profiles and clicked the Create New Profile button. I deleted the contents of the directory that Create New Profile created and copied the contents of the default profile directory to it. The last step is to tell Firefox to use my new profile instead of its default.

But the about:profile page lists three profiles: default-release, default, and my new one. The first two have a Set as default profile button; the last does not. So it appears that I can tell Firefox to use the default-release profile or the default profile, but there's no way I can tell it to use my new profile. I can only Launch profile in new browser -- presumably something I'll have to do every time I run Firefox.

This makes no sense. How can I tell Firefox to use my new profile -- not to launch a new browser with it, but to use it, period? If I can't, why can't I? Every version of Firefox I've ever installed up to now allowed this.

Also, the default-release profile section of about:profiles has the note "This is the profile in use and it cannot be deleted." So it appears that Firefox uses the default-release profile instead of the default profile as its default profile. What is the default-release profile? Why isn't the default profile the default profile?

Why is my browser stating that it is managed by my organisation.

I have never used it fr work and it is my personal laptop. Please kindly provide steps to remove this

I have two profiles in my Thunderbird account. I want to create desktop shortcut for each profile. That way I can use the shortcut to get my email. On on profile I just want it to go straight to that account without asking for a password. On the other one I want it to ask me for a password. Is that possible and if so how can I do that?

Good day,

I'd like to start by thanking the Mozilla Firefox dev team for the newest iteration of the profiles feature. I think it's great.

One area where I think it could use improvement from usability perspective is a way to launch a specific profile via the right-click menu when using the taskbar icon. Currently, using the "Choose a profile when Firefox opens" only gives users the option to select the profile on the initial launch of Firefox. After that if the user opens a new window via the taskbar, the most recently opened profile is automatically chosen.

I managed to find a "hack" to add the requested capability. It seems adding an action to the "firefox.desktop" file in the "/usr/share/applications/" directory works the way I'd like it to.

Modifications to "firefox.desktop" Changed line 12 to: Actions=choose-profile;new-window;new-private-window;open-profile-manager; Added lines 529 - 534 (before Desktop Action new-window): [Desktop Action choose-profile] Exec=firefox --new-instance Name=Choose Profile Name[en_US]=Choose Profile Name[en_CA]=Choose Profile Name[en_GB]=Choose Profile

The end result is a new option available when right clicking the taskbar that opens the new profile selector. Screencaps of options before and after attached. I imagine that users will need to have the "Choose a profile when Firefox opens" enabled for this to work as expected, but would like someone from Mozilla to confirm this.

Would like to request that this option be built into Firefox going forward, so there's no need for users to "tweak" it to get this functionality.

I am troubleshooting a problem that arose after I migrated a Thunderbird mail account from an old Win10 64-bit PC to a new Win11 64-bit PC.

I installed TB on the new machine and opened the program without doing anything else, then closed the program. TB created installs.ini and profiles.ini files, both with the following as the last line:

Locked=1

This line had not been in either .ini file on the old installation.

I edited these files to point to the backed-up TB profile from the old machine, but I decided to leave the Locked=1 line in the .ini files.

Was this a mistake? I have a strange problem with the new installation, which I won't report until I understand what the "Locked=1" means, and whether I was ill-advised to leave it/them in. Fortunately there has been no evident loss of mail data.

Thanks in advance, Phil

I just update firefox but all my none of my bookmarks loaded. I share my computer with my husband. He has a different account on this same computer and his bookmarks are showing up on my side, but mine are nowhere to be found. Previously we have had separate bookmark lists and all was fine. I don't know where my bookmarks went.

How do I get them back and put on "my side" and still have my husband's on his side?

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

I have an old Windows 8.1 computer with Thunderbird installed and it has worked fine. I want to move my email to a new Windows 11 computer. My old Thunderbird is listed as version 115.18.0. The version on my new computer is listed as 141.0 and is listed as up to date. NOTE: On my old computer my 115.18.0 version is also listed by Thunderbird as "up to date." Apparently, Thunderbird cannot update my old computer version any more.

Here's the problem. Thunderbird's instructions for moving my email from one computer to another includes this warning: "To move your data, you can copy your profile folder to the equivalent location on your destination computer. Ensure both versions of Thunderbird are up to date or identical before attempting a transfer as otherwise it might fail."

So, since Thunderbird does not allow me to have "identical" versions on my two computers, how do I move my email from my old computer to my new computer? (I apologize if this question has already been asked and answered.)

I have created a new IMAP account where previously I had a POP3 account. The IMAP acct now fetches email from the same GoDaddy server account as the POP3 account used. I want to continue using the same Local Folders location as before, in order to maintain and update the large amount of selectively retained email permanently stored there.

Previously with POP3, I had redirected Local Folders from the default location on the C: drive to a different location (K:\...\Thunderbird\Local Folders) on a data drive. Under Account Settings > Local Folders, Thunderbird still points to the desired data drive directory (K:\...\Thunderbird\Local Folders). Does this mean that the new IMAP account will also use the redirected Local Folders location or will it use the Default location on the C: drive listed after creating the IMAP account? I ask because under Account Settings > Server Settings for the IMAP Mail Server, the "Local Directory" entry points to C:\Users\MCM\AppData\Roaming\Thunderbird\Profiles\......

Perhaps the "Local Directory" is not related to the "Local Folders" location?

Thank you for helping with this somewhat confusing situation.

Michael M.

I created multiple profiles with the new [management] feature. Amazing, I've been waiting for it for years!

If I open all my profiles I can distinguish them since they all have a different icon. I can also pin all the profiles (Keep in Dock) to the MacOS dock.

When I quit all Firefox instances, I would like to be able to immediately jump back to the desired profile.

Instead I get multiple Firefox icons (without the icon profile, that disappear after I quit Firefox). I find this inconvenient.

[Profile2] Name=default-release IsRelative=1 Path=Profiles/dzsmofpl.default-release [Profile1] Name=default IsRelative=1 Path=Profiles/g92ibtwu.default Default=1 [Profile0] Name=default-esr IsRelative=1 Path=Profiles/2i2jua4d.default-esr [General] StartWithLastProfile=1 Version=2 [Install712DAF5A23ABECDC] Default=Profiles/2i2jua4d.default-esr Locked=1 [InstallFEE05927A5AEB8AE] Default=Profiles/dzsmofpl.default-release Locked=1

Maybe a red herring: I was in the middle of doing a Documents folder backup when I decided to open Thunderbird for some reason. Got an Unable to Load Profile type of message. And my attempts at a fix seem to just send me further down a rabbit hole. I started out by renaming my profile.ini file, but I really didn't know what the heck I was doing and possibly caused more harm than good. Then I tried to find my profile file/folder itself, using the Thunderbird > Troubleshooting > Profile Folder path and doing an import from inside TBird but that ended up with various problems such as drilling down to the profile folder from within TBird but then when I clicked Select Folder in Thunderbird, that didn't trigger any sort of import.

I also spent a good deal of time trying to find my AppData folder, finally being able to view it (a hidden folder, apparently), and saw several recently-dated profile types of folders, but again, I couldn't manage to "hook up" any of those folder/files from starting inside TBird and selecting Import... I ended up just stuck inside a folder, not triggering any Importing activity.

Finally I found a profile folder (5yed...) at a higher level on my PC than inside that long AppData Roaming Thunderbird path. THIS profile was inside: D:\DOCS\Thunderbird\Profiles

Now THAT folder I managed to get an Import to trigger. But the result was an Error Message telling me to go find my Error Console. Can you please see the attached Error Code display screengrab and tell me there's hope that this was at least the right file but just poor results that I can fix somehow???

The following is my copy/paste of the text I see in the Error Console display that's in my screengrab after trying to import the above 5yed... profile, in case it helps you see it better:

1765349209272 addons.xpi WARN Checking C:\Program Files (x86)\Mozilla Thunderbird\distribution\extensions for addons WebGL context was lost. 2 Troubleshoot.sys.mjs:727:17 Content-Security-Policy: This site (https://www.mozilla.org) has a Report-Only policy without a report-uri directive nor a report-to directive. CSP will not block and cannot report violations of this policy. thunderbird downloadable font: Glyph bbox was incorrect (glyph ids 441 459 695) (font-family: "Open Sans" style:normal weight:700 stretch:100 src index:0) source: https://updates.thunderbird.net/media/fonts/opensans-bold.woff2 downloadable font: Glyph bbox was incorrect (glyph ids 459) (font-family: "Open Sans" style:normal weight:400 stretch:100 src index:0) source: https://updates.thunderbird.net/media/fonts/opensans-regular.woff2 Uncaught (in promise) NS_ERROR_FILE_NOT_FOUND: Component returned failure code: 0x80520012 (NS_ERROR_FILE_NOT_FOUND) [nsIFile.copyTo]

   _recursivelyCopyMsgFolder resource:///modules/ThunderbirdProfileImporter.sys.mjs:652
   _recursivelyCopyMsgFolder resource:///modules/ThunderbirdProfileImporter.sys.mjs:661
   _mergeLocalFolders resource:///modules/ThunderbirdProfileImporter.sys.mjs:634
   _importServersAndAccounts resource:///modules/ThunderbirdProfileImporter.sys.mjs:243

ThunderbirdProfileImporter.sys.mjs:652

Also attached below are also:

• a screengrab of a set of profiles I found, but when I drilled down to them from within TBird's Import selections and clicked Select Folder, as far as I got was an open folder, or something like that.
• Thunderbird's Troubleshooting Info "Profile Folder" path.
• Message telling me to see the Error Console. The message appeared right after I tried importing the profile that's stated in TBird's Troubleshooting Info "Profile Folder" path.

Here's the copy/paste of the Error Console message display after my try at importing the profile that is in the path that TBird's Troubleshooting Info page "Profile Folder" states (maybe it's the same as my 5yed...profile import try's Error Console display, dunno:

1765353636640 addons.xpi WARN Checking C:\Program Files (x86)\Mozilla Thunderbird\distribution\extensions for addons Content-Security-Policy: This site (https://www.mozilla.org) has a Report-Only policy without a report-uri directive nor a report-to directive. CSP will not block and cannot report violations of this policy. thunderbird WebGL context was lost. 2 Troubleshoot.sys.mjs:727:17 downloadable font: Glyph bbox was incorrect (glyph ids 441 459 695) (font-family: "Open Sans" style:normal weight:700 stretch:100 src index:0) source: https://updates.thunderbird.net/media/fonts/opensans-bold.woff2 downloadable font: Glyph bbox was incorrect (glyph ids 459) (font-family: "Open Sans" style:normal weight:400 stretch:100 src index:0) source: https://updates.thunderbird.net/media/fonts/opensans-regular.woff2 Uncaught (in promise) NS_ERROR_FILE_NOT_FOUND: Component returned failure code: 0x80520012 (NS_ERROR_FILE_NOT_FOUND) [nsIFile.copyTo]

   _recursivelyCopyMsgFolder resource:///modules/ThunderbirdProfileImporter.sys.mjs:652
   _recursivelyCopyMsgFolder resource:///modules/ThunderbirdProfileImporter.sys.mjs:661
   _mergeLocalFolders resource:///modules/ThunderbirdProfileImporter.sys.mjs:634
   _importServersAndAccounts resource:///modules/ThunderbirdProfileImporter.sys.mjs:243

ThunderbirdProfileImporter.sys.mjs:652

Thanks for any help in getting through this.