Thunderbird Support Forum

I had a huge problem with M Outlook. In addition it has locked me out of my Office 365 package and I'm not getting help or support. Luckily I had backup completed before the problem. I changed to Thunderbird (using pop3), which I find very good. The back up is approx 8 GB but with many duplicates which I need to clean up. When I click import it seems to limit the file size to 2 GB. How can I import this backup file into Thunderbird to enable me to access the emails, clean up the many many duplicates and reduce the size? I await help, Thanks in advance

I have Thunderbird installed on 3 separate computers in 3 separate locations. When will it be possible that the 3 installations are all completely identical, i.e. they're clones of each other? I would like the folders, filters and address books, for example, alterable by one one installation to update the other two. (Working like, say LastPass)? At the the moment, any filter or folder not present on one of the installations causes emails to end up al over the place!

I lost my password and had to remove and readded my Suddenlink email, which autodeletes emails past a date and size. I want to have it sync with my local folder inbox only so i can ignore the autodelete off of suddenlinks inbox

I had to replace my hard drive and now have Win 11. I still have my Thunderbird account, but I cannot access the 3000+ emails in my folders. My Thunderbird started from scratch, no history, no files. How do I access and download my saved emails and folders from before the hard drive replacement? The Geek Squad couldn't help. Keep it simple, I'm not a techie.

I am getting an error that "you have launched an older version of Thunderbird" Every time I try to open my email. I was using the latest beta version up to three days ago and the program got corrupted for some reason. I did try to install the latest beat online beat 2 .

Thanks, Al

I ask for help with thunderbird and you send me this: If you need help with Mozilla Thunderbird, you can visit the Thunderbird Support Forum or the Thunderbird Support Articles. which brings me right back here. You are worse than windows.

I have bought a new Mac Air and I want to get all the email address off of Thunderbird on my desktop and put them on Thunderbird on the laptop. I have had to move most of my files and items by Flash drive because when I migrated it the first time, I overloaded the laptop and had to start all over. So what file can I move from the library to get these on my new laptop?

Hello Dear People,

I have been using Thunderbird to great satisfaction. When my computer of 10 1/2 years died, I started to use old laptop of my son who made me the second user. I d/l Thunderbird on my account and it all went well till a few days ago. No Thunderbird. I d/l again, profile not found/inaccessible. I did see advice here from last year, looking for the profile under Users, app data, roaming etc. but to no avail. There is no profile.

How to solve this problem? Also after d/l the set-up, the thumbnail looks strange, like half of the image as shown in the picture. I tried d/l a few times, same result. I was very content with the program. I want Thunderbird back!

Thank you for your advice! Dorith

Hi,

I've tried migrating Thunderbird data and folder structure from a Windows 10 PC to a new Mac Sonoma 14.1.2 following the instructions from https://support.mozilla.org/en-US/kb/moving-thunderbird-data-to-a-new-computer and encountered problems.

I copied the Thunderbird folder from the PC onto a USB drive and then moved the file to the Library folder on the Mac.

Importing seemed to go well, but when I opened Thunderbird on the Mac only the inbox (and its messages) were there. All other folders and their contents were missing.

What did I do wrong and what do I need to do to migrate all folders/sub folders and their data?

Thanks, Richard

I have installed the newest version of Thunderbird (115.5.2.) and can not open my profile. The Error message: A newer version of Thunderbird may have made changes to your profile which are no longer compatible with this older version. Use this profile only with that newer version, or create a new profile for this installation of Thunderbird. Creating a new profile requires setting up your accounts, calendars and add-ons again

But i have the newset version installed.

Hi, I have three different university emails that I was hoping to add to Thunderbird, and I can't login to any of them. Two are Outlook, and one is Gmail. When I try to login with any of them, it says the password is incorrect, but I've verified with at least one of them that the password definitely is correct and I don't see how it could be wrong for the others. I was able to login to my regular Gmail via Thunderbird, but can't login to these ones. A little help, please?

I have Thunderbird on two PCs. Thunderbird stopped working on my older PC, Lenovo Z40, Windows 10. I uninstalled Thunderbird on that PC and tried to reinstall. I have downloaded the set up file, but when I open it tells me I need a Microsoft safe app and sends me to Edge browser. I looked at help website but can't see how to overcome this step to get to what is described on the Tunderbird UTube video. I have downloaded the Thunderbird set up file using Edge, Chrome and Firefox browsers. Same problem each time. Thanks

I installed TB 115 portable to review it. I now have it all setup and configured to my liking. Now I want replace my installed v102 with the new portable ver. My plan is to upgrade to installed from 102 to 115.5.2 (same as portable). But what files/directories do I need to move to do this? I have the Installed ver on C: (Win10) and the portable on D: .

Road map please.

When installing 115, I get to a page that says "Just one more step! Finish installing, and start enjoying Thunderbird." But there is no "Finish" or similar button. What do I do?

I want to see 3 things on the main screen: -my local file structure -list of received emails that I have not yet files -a pane to view an email I select

I have has this setup on many versions for over 10 years on many machines and now I cannot discoverer how I can access it.

When I converted to Thunderbird last March I had issues moving from MS Outlook 2010. One of your supporters David went the extra mile to help make the conversion and in addition gave me instructions on how to save Thunderbird in case I need to rebuild my laptop. So long story short my Windows 7 laptop rolled over and fried itself and I was able to save critical files necessary to rebuild to a new laptop which is now Windows 10 Pro.

My problem now the information that David shared with me I am unable to match in Windows 10. I have a file "c;\users\<yourid>\appdata\roaming\thunderbird folder" on my thumb drive, but on Windows 10 "appdata\roaming\thunderbird folder" is no place to be found. I have emails that I saved in this file that I need. I would GREATLY APPRECIATE any and all help from the community!! Thanks Richard Germain

System is win 11, latest TB, personal gmail account of long standing. I want to use TB as my email program for gmail. After installing TB, it asks for my gmail login and password, and recognizes the account, defaulting to IMAP, Oauth2, etc. When I press "done", I get a google screen saying that TB want authorization to access gmail files. But when I press "allow", the TB page shows an error message under the password field reading "Unable to log in at server. Probably wrong configuration, username, or password." I understand it is looking for my gmail username and password, and these are correct. I have tried this many times, including with variations: removing and reinstalling TB, creating a pw just for TB in gmail (subsequently deleted). I have read all of the gmail installation help notes at Mozilla. Most relate to a 2022 change in gmail re Oauth2. Nothing helps. Any advice?