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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 … (read more)

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.

Open 3 20

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#… (read more)

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

Open 1 60

migrated to new Mac and Thunderbird damaged/deleted. What to do.

Migrated my data from old MacBook to new MacBook, and got a message of a damaged Thunderbird app. Deleted the app. Thus, I cannot retrieve personal data on my old Mac. … (read more)

Migrated my data from old MacBook to new MacBook, and got a message of a damaged Thunderbird app. Deleted the app. Thus, I cannot retrieve personal data on my old Mac. I do have a gmail account, but my preference always has ben to use Thunderbird. How do I proceed?

Open 3 10

two version install?

I am running T-bird 45.8 in order to use Reminderfox on win10-22H2, It's not a perfect solution -- a bit clunky. I have read that T-bird now has a good calendaring syste… (read more)

I am running T-bird 45.8 in order to use Reminderfox on win10-22H2, It's not a perfect solution -- a bit clunky. I have read that T-bird now has a good calendaring system and would like to try it out, but do not want to mess with the current install, in order to be able to revert easily. What's the best way to go about that? (FWIW, I do not need to hear about how it's such an awful security mess, and all that. I am aware.) --whawn

Open 1 30

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… (read more)

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

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… (read more)

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 7 129

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… (read more)

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 20

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… (read more)

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 3 20

installation on a new computer

due to a computer malfuction i tried to install thunderbird on a new computer a user name and password is required,followed the procedure but no instructions arrived at [… (read more)

due to a computer malfuction i tried to install thunderbird on a new computer a user name and password is required,followed the procedure but no instructions arrived at [redacted]@hotmail.com your advice will be appreciated thks

Open 1