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Empty Local Folders: Drafts / Sent / Trash / Outbox

After Thunderbird 152.0.1 Windows x64 lost its mind: * my main calendar * not allow recreation from backup data * would not load profile I had no option but to remove an… (cytajśo wěcej)

After Thunderbird 152.0.1 Windows x64 lost its mind:

* my main calendar
* not allow recreation from backup data
* would not load profile

I had no option but to remove and reinstall.

Local Folders has 4 non-removeable folders Drafts - XXxxxx, Sent, Trash and Outbox that were not there in the past 20 years.

Open

Under installed apps I have two entries for Thunderbird: 1) 140.8.0, 2/25/2026, 244 GB (sic) and 2) 140.12.1, 7/2/2026, 250 GB. Is it safe to temove 1), and how is it possible to be that large an app?

Please let me know if it is safe to remove the older version of Thunderbird in the Installed Apps list. I also question whether the size of the app in the list is accurat… (cytajśo wěcej)

Please let me know if it is safe to remove the older version of Thunderbird in the Installed Apps list. I also question whether the size of the app in the list is accurate; 250 GB seems quite enormous in a 500 GB hard drive. Thanks, Hans

Open 1

Thunderbird won't install on Windows

I have a newly downloaded copy of Thunderbird, and I'm signed in to Firefox. When I try to install it, I get as far as Creating Account, and the installer hangs with a s… (cytajśo wěcej)

I have a newly downloaded copy of Thunderbird, and I'm signed in to Firefox. When I try to install it, I get as far as Creating Account, and the installer hangs with a spinning circle. Please help.

Open

Thunderbird Error Message : Authentication Error : Unable To Log in at Server. 150 will not install

I have been using the same Email Address and Thunderbird for Downloading my Emails for over 10 years. Now Thunderbird will Not Install. Am getting a strange Error Messag… (cytajśo wěcej)

I have been using the same Email Address and Thunderbird for Downloading my Emails for over 10 years. Now Thunderbird will Not Install. Am getting a strange Error Message ... Authentication Error : Unable To Log in at Server. This has happened on 3 machines. Why is it now impossible to Install Thunderbird on Windows 10 machines.


My LongTime Email Address is [edited from public] @Juno.com

Locked 1 10

Migrating programs from one macbook to another, Thunderbird failed to migrate.

Got a new macbook, did migration from the old to the new. Thunderbird failed to migrate. The icon on the desktop did, but it is not listed in the application list. Both a… (cytajśo wěcej)

Got a new macbook, did migration from the old to the new. Thunderbird failed to migrate. The icon on the desktop did, but it is not listed in the application list. Both are running the same software version, Tahoe 26.5.2. Talked to Apple, they tried to help, but in the end, they answered that it wasn't their software, so contact Thunderbird. Thoughts??? John Connell

Solved 9

Uninstall not found... TB trying to reset to default

Over the last couple of weeks, TB comes up with a message "System Integration Use Thunderbird as the default client for:" with "Email", "Custom Thunderbird links (net.thu… (cytajśo wěcej)

Over the last couple of weeks, TB comes up with a message "System Integration Use Thunderbird as the default client for:" with "Email", "Custom Thunderbird links (net.thunderbird)" and "Always perform this check when starting Thunderbird" options checked.

I check set as default and get "C:\Program Files\Mozilla Thunderbird\uninstall\helper.exe'" and "Windows cannot find 'C:\Program Files\Mozilla Thunderbird\uninstall\helper.exe'. Make sure you typed the name correctly, and then try again." (screen shots attached)

As you can see, I was just accepting the settings. not sure why it's looking for helper or to uninstall? Sorry, can't find the app menu in TB with instructions provided in the line.

Thanks!

Open 20

When a proper repository for .deb packages will be available?

IIRC, there was a discussion some time ago that a repository for .deb packages would be made, similar with we already have for Firefox. There was any development in this … (cytajśo wěcej)

IIRC, there was a discussion some time ago that a repository for .deb packages would be made, similar with we already have for Firefox. There was any development in this question?

Open 10

How do I install Thunderbird

I have an old iMac running macOS High Sierra. After a power surge last night, I have been unable to access any mail accounts. Apparently this is because my iMac cannot us… (cytajśo wěcej)

I have an old iMac running macOS High Sierra. After a power surge last night, I have been unable to access any mail accounts. Apparently this is because my iMac cannot use two-factor authorization. The recommended fix is to use Mozilla Thunderbird. I downloaded this, but when I double-click the .dmg file, I get a corrupt image message. I am wondering if this is because I have a 32-bit machine.

Open 3

I have paid a so called donation and it will not let me past the donation page

Needed to ire install thunderbird email and could not get past the "donation" page Paid a "donation" and still cannot get past the donation page The release channel butt… (cytajśo wěcej)

Needed to ire install thunderbird email and could not get past the "donation" page Paid a "donation" and still cannot get past the donation page The release channel button did nothing Am thinking the donation is a scam How Can I use thunderbird for emails Margaret

Open 7 1 77

My Thunderbird has disappeared and I have no idea what to do.

I got notifications that I needed to update my email. I tried to follow the directions but after it was uninstalled, nothing else happened and now it's gone and I have n… (cytajśo wěcej)

I got notifications that I needed to update my email. I tried to follow the directions but after it was uninstalled, nothing else happened and now it's gone and I have nothing. I do not know what to do and am panicked because it's the only way I have to contact many people and it's really important to me.

Open 1 10

Problem with installation on new pc

I can sign in with my google account, but when I come to the installation window with Pop3 and SMTP another password is requested. I don't know which, and there's no pos… (cytajśo wěcej)

I can sign in with my google account, but when I come to the installation window with Pop3 and SMTP another password is requested. I don't know which, and there's no possibilty to get a new. Please help Jens

Solved 1 10