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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… (читать ещё)

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

Открытый 3

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… (читать ещё)

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.

Открытый 20

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… (читать ещё)

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.

Открытый 30

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… (читать ещё)

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!

Открытый 30

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… (читать ещё)

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

Решён 1 10

Thunderbird No download

I Googled Thunderbird and received this link: https://www.thunderbird.net/en-GB/thank-you/?form=support&utm_content=post_download&utm_source=thunderbird.net&u… (читать ещё)

I Googled Thunderbird and received this link: https://www.thunderbird.net/en-GB/thank-you/?form=support&utm_content=post_download&utm_source=thunderbird.net&utm_medium=fru&utm_campaign=donation_2023&downloaded=True&download_channel=esr It asks for a donation of varying amounts. I donated £15. I received an email thanking me for the donation Thunderbird <give@thunderbird.net> Whenever I click download I'm returned to the Donate page. Are these URL scams?

Решён 4 30

Tbird was not working. Downloaded upgrade verbatim off of website. lost all files, contacts, archives, etc.

My Tbird email was not working, so I tried a "clean re-install" as recommended on your website. I lost everything, contacts, archive, pics, email.. .years worth. Please… (читать ещё)

My Tbird email was not working, so I tried a "clean re-install" as recommended on your website. I lost everything, contacts, archive, pics, email.. .years worth. Please tell me I can retrieve them.

Thank you,

Pat
Открытый 8 10

Can't install thunderbird on my new pc Lenovo windows 11

Can`t install on my account [edited]@hotmail.com I just create yesterday. I can read outlook program. There is something wrong I don`t know what top do. Therese Driscoll#… (читать ещё)

Can`t install on my account [edited]@hotmail.com I just create yesterday. I can read outlook program. There is something wrong I don`t know what top do. Therese Driscoll# * Numbered list item

Открытый 1 60

Thunderbird is loaded on my Dell laptop (Win 11) twice. How do I delete one and save my messages?

There are two copies of Thunderbird on my laptop. Win 11. A newer copy appeared but does not have my old emails that I have saved. How do I safely get rid of it and keep … (читать ещё)

There are two copies of Thunderbird on my laptop. Win 11. A newer copy appeared but does not have my old emails that I have saved. How do I safely get rid of it and keep all emails? Thank you.

Открытый 3 20

Is there a Portable Apps version of Thunderbird for Windows 11 - my version from my windows 10 computer won't run.'t

I have been using Thunderbird Portable e-mail under Windows 10 for a number of years . About 4 months ago I installed on a Windows 11 computer - it worked for a few weeks… (читать ещё)

I have been using Thunderbird Portable e-mail under Windows 10 for a number of years . About 4 months ago I installed on a Windows 11 computer - it worked for a few weeks, then one morning I received a message stating it will not run because a 16 bit program will not run in a 64 bit environment.

I am hoping that there will be a 64 bit portable version for Windows, based on my previous usage.

Would I be able to install the normal version on an external portable drive? When I go visiting, it is convenient to be able to take just the external drive. Currently, the external drive is a high capacity USB drive. However, if this is not possible, is the current Windows 11 version ready to go?

My current e-mail system is a long time DOS system via my ISP. That e-mail address is my only e-mail address, used for over twenty years. I would prefer not to have to change it.

What I have been doing is to use Thunderbird Portable to download my e-mails into Thunderbird on my computer, which allows me to store my e-mails offline for a financial year.

I am hoping to find an option to continue this by June 30.

Regards and Thank you, Kevin Cassidy [edited email from public community support forum]

Открытый 1 50

instal Thunderbird on comcast/xfinity mail

Comcast/xfinity has replaced its e-mail with Yahoo mail I want to install and use Thunderbird instead I Have followed all the installation prodeedures but T bird will n… (читать ещё)

Comcast/xfinity has replaced its e-mail with Yahoo mail I want to install and use Thunderbird instead I Have followed all the installation prodeedures but T bird will not connect/run. Has comcast made it impossible to use Thunderbird and if not, hoe do I get it to run

Открытый 2 49

A long time user of (2) computers, both running (2) separate accounts until now, but after having to re-install a fresh copy to one computer, I am no longer recognised on it while the other computer still continues functioning quite admirably ?

Firstly, both laptops are working well. While one is still behaving quite normal, I am unable to install Mozilla Thunderbird on the other after having done a reset .. The… (читать ещё)

Firstly, both laptops are working well. While one is still behaving quite normal, I am unable to install Mozilla Thunderbird on the other after having done a reset .. The "HUB" will NOT except my personal details i.e. email address & PW which I've used for years. I'll leave it at that for now ..

Открытый 1 100

If I uninstall and then reinstall Thunderbird, will I lose emails and/or folders?

I've been having a number of problems with Thunderbird recently and I'm hoping that deleting and reinstalling the app might help. But I worry that I will lose emails by … (читать ещё)

I've been having a number of problems with Thunderbird recently and I'm hoping that deleting and reinstalling the app might help. But I worry that I will lose emails by doing this. I'm also wondering if the numerous folders I've set up will disappear as well. The issues I've been having, by the way, are emails consistently going into the wrong folder and, most recently, constantly being asked for my passwords. (I have emails from four email addresses being downloaded by Thunderbird.) I've had the password issue in years past, but it always seemed to resolve itself.

Решён 4 108