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Hi, am getting this error and am unable to use our new PC as this Thunderbird mail app is failing to migrate the profile from the other windows PC. Need your help asap on how to fix this. Not very technical, so need help. I updated Thunderbird to the latest version (115.11.0 32 bit) on my old PC before copying the profile over and loading Thunderbird on this new PC which has 115.11.0 64 bit version.

Uncaught (in promise) NS_ERROR_FILE_NOT_FOUND: Component returned failure code: 0x80520012 (NS_ERROR_FILE_NOT_FOUND) [nsIFile.copyTo]

   _recursivelyCopyMsgFolder resource:///modules/ThunderbirdProfileImporter.jsm:659
   _recursivelyCopyMsgFolder resource:///modules/ThunderbirdProfileImporter.jsm:668
   _mergeLocalFolders resource:///modules/ThunderbirdProfileImporter.jsm:641
   _importServersAndAccounts resource:///modules/ThunderbirdProfileImporter.jsm:250

I am posting this on my Mac Monterey; but the problem is on my Windows 10. It is similar to my last post about Firefox on that system. Updating is hanging. About Thunderbird shows an update available, just as that feature on Firefox did last week. However, though it indicates that it is attempting to download, it shows that nothing is downloading. So, there is a spinning icon on the left, but zero bytes downloading, just as Firefox did. After a restart last week Firefox applied the download. The same action occurs now with Thunderbird. To contrast, that same update just downloaded and applied on this Mac Monterey. The version on Windows 10 is 115.10.2, 64-Bit. There is a general Windows Update problem on that system. Edge, on the other hand, downloads its updates without any problem. I just ran a Troubleshooter that Windows makes available under Settings, Update and Security, Troubleshoot. Right now I am about to restart that computer.

I've just updated from 115.04esr to 115.11esr for macOS to the heap of unwelcome troubles. This experience is extremely unfriendly and annoyingly brazen on part of the Firefox developers.

Every time I launch the browser it starts up from its default profile, not mine. I lost access to all my themes, extensions, history, devices and settings as a consequence, and cannot regain it.

All efforts to launch FF from another profile upon opening of a new instance resulted in a dialog nagging me to move the app to /Applications even though I always kept it in a subfolder of my choosing, and intend on continuing to do so. Refusing to submit opens the default new Firefox profile in every instance.

Closing Firefox instances is impeded by a Chrome-like first-after-installation closure prompt asking to have the browser warn me every time I'm closing the browser. Repeatedly rejecting the prompt makes no difference.

The flatly blunt and pervasively arrogant manner, in which the new Firefox forces its way, is off the charts and is unacceptable.

Is there a straightforward way of restoring the old behaviour and telling it to honour my settings?

Hi, I have had Thunderbird on my Windows 10 laptop successfully for many years. Today I added a new email account, but then Thunderbird kept losing connection. I thought I'd try uninstalling and re-installing it, but now I get the message that it can't be installed on my laptop. Anyone know how I can get round this?

I recently un-installed an old version of Thunderbird that was showing a vulnerabilty and would not patch itself to the latest version for some reason (old version was in the 60s). I had all mail stored in a non-standard folder on my D drive so that it would be included with my backups. After uninstalling, my non-standard folder is still there. However, the location where Thunderbird was originally installed was removed and that is not included in my backups.

I installed today the newest version of Thunderbird, but I cannot get it to open my old mail. I'm able to login to my accounts, but I need to access the email stored in my non-standard storage file.

I imported info from Thunderbird on other computer. Now every time I open Thunderbird on the new laptop it says it can't reach my email server, incorrect login. If I enter my password it repeats the failure message. If I just close the message, the popup appears again, closing it again, it repeats once more, then closing it keeps it gone. Once I get the message to stop popping up by the repeat closings of the message, the related email account has already collected new emails so it was working. For what it's worth, the laptops are both Lenovo, the old is running Win10, the new Win11. Before the Import is was working fine, I only wanted to transfer my contacts, but the export grabbed everything. I don't have the issue on the original laptop I exported the info from.

I can't get on with Thunderbird 115 so want to install an earlier version. I have installed 102, but it asks for my school or work account log in, which I don't have. How do I achieve what I want, and stop thunderbird updating to 115. I need a quick answer as I have just made a donation to you, and if I can't have what I want I will ask for my donation back.

Watson.

The new version of T-Bird completely crashes and completely keeps my computer from functioning!!!

One of my mailboxes cannot be logged into. The “Enter New Password”, “Cancel”, or “Retry” dialogue box comes up, but clicking on ANY BUTTON has NO EFFECT!!! No other aspect of the computer can be accessed!!!!!!

When I try to move the box, it just creates a new one. Please see the attached image.

My computer is a Mac Mini running 10.12.6.

Obviously this a major bug.

I just purchased a Google Pixel 8a, and needed to install the reader for my Yahoo Mail account. When I searched for Thunderbird for Android, I found Edison Mail+. How does that fit, or is this something I don't want?

Is there - yet - a Thunderbird for Android? If not what do you recommend? I had been using K-9 mail on my Pixel 6a (which, I had understood, was the forerunner of Thunderbird for Android), but it just doesn't want to install on the 8a.

With the latest update 115.11.0 the existing profile was not identified and loaded. All existing configurations, mail and address book are not accessible. The likely problem is the installer program that uses IP address as a factor in finding the correct Thunderbird account. I use VPN and do not have a static IP address. I have been shut down for several days now and any attempt on my part to resolve the issue has failed. The old email is very significant. Unannounced updates can cause serious trauma for Thunderbird users.

Hi!

Trying to use Thunderbird to connect to my hotmail account but get an error message that says I can't log into "server" due to the prefs or login details are wrong. Have tried to search around for answers but can't see that anything is wrong. Any idea what to do? Use windows 10 professional.

Thunderbird is not downloading. Email email or feeds. It is. Not downloaded since May 11th. Also your website is i Inaccessible Through any of the browsers, please help.

How can I sign in to Netaddress with the new Firefox update?

I'm afraid that as I am old and female I haven't a clue how all the information below can help. What can I do with it? As I can't access my only email address, I'm not sure how I can follow instructions.

Fingers crossed for some information. At the moment all I get is 'bad request'.

I have downloaded the addon cardbook. Now, how do i find my old address books that existed prior to the addon? Please do not leave a single step out on how to migrate back or forward or what ever i have to do to get my old tb moved to the new cardbook tb supernova. Thank you.

Hi. I love Thunderbird! But I cannot use a Gmail account.

It all started when I changed the underlying password for my Gmail account (for routine security). I changed the password too on my Thunderbird client for SMTP and IMAP.

But then it popped up with: https://accounts.google.com/v3/signin/identifier?app_domain=http://localhost& [etc]

it keeps giving me this message:

"400. That’s an error. The server cannot process the request because it is malformed. It should not be retried. That’s all we know."

I've tried to read online what's going on. I've deleted the account and tried to set up again, and closed Thunderbird. It keeps doing this. I've checked Google settings ... nothing untoward. It doesn't have a link to Thunderbird still.

What can I do?

Thanks, Dan

I have a PC that cannot access the Internet. Using a thumb drive, I was going to download Firefox then load it onto the PC. Do you think this will work and if so, how do I put Firefox on the thumb drive (be specific - step by step). Thank you

Upgraded to Sonoma 14.5 on iMac and when trying to open Thunderbird, I get the message "Thunderbird" is damaged and can't be opened. You should move it to the Trash. What do I do?