Thunderbird Community Forum

I am setting up a new email address on Thunderbird. I enter a new email address and when I enter password it is rejected. I have removed all previous emails and passwords

Hi, how do I get rid of

"Error: Platform version '143.0.1' is not compatible with minVersion >=141.0 maxVersion <= 141.0 Maybe try to reinstall Thunderbird?"

It's not very practible to do a new copy everytime a Thunderbird Update has to be made because I mainly store my emails in a local copy (respectively a lot of copies already).

could you please help me?

Thx & BR Eva

When using "Compact Folders," the compacting will stop on a certain folder (it changes) and says that I do not have enough space to complete the action. I usually ignore it, close that command, then Compact the folder in question by itself. Then it works, so all Folders are compacted.

The other day I received an email from Mozilla suggesting I move from Thunderbird ESR to the Release version (Windows 11). I backed up my profile and installed Release 139.0.2. The following error is now popping up periodically in Thunderbird: "The folder 'Inbox on [myemailaddress]' could not be compacted because writing to folder failed. Verify that you have enough disk space, and that you have write privileges to the file system, then try again."

I do not think this message is really related to disk space (there's plenty available) or file write privileges since nothing should have changed. I see that others have encountered this message where Thunderbird is trying to compact other folders. However, I did not see a solution applicable to my situation.

Thank you, in advance, for any insight in getting rid of this error.

Several days ago, I asked for an explanation of any process that would retrieve the emails I lost (completely missing) after the compacting process. (You are referring to https://support.mozilla.org/en-US/questions/1513163 )

Your information indicates that compacting would not cause any data loss. That has not been the case.

To date, I further haven't received any response regarding how I might retrieve those emails.

Many of these emails are quite important to my business - and I entrusted your software to preserve those. Again - no response regarding how I might retrieve them.

Please respond ASAP - I am at critical juncture here, and need a resolution forthwith.

Thank you. John Van Epps <redacted>@gmail.com

Long-time user here. A month or so ago I switched from 128 esr to 139 release, and since then I have had constant messaging several times a day that folders could nor be compacted. I've verified everything, but the message still happens with annoying regularity. I saw on Reddit that this may be a known bug, but thought I would report it to the forum anyway. Hope that it will be resolved in the next release.

I get this message when trying to delete or compact....

"The folder 'Inbox on gggdds@js-net.com' could not be compacted because writing to folder failed. Verify that you have enough disk space, and that you have write privileges to the file system, then try again...."

I'm logged in as administrator; what else can I do?

I have an email account through Moxilla Thunderbird and I can only access earlier emails through the webmail account. I want to be ble to see ALL my email messages by clicking on Moxilla Thunderbird icon on my computer. PLEASE HELP!

peter.lerche@mail.dk My internet service provider, YouSee, removed my access to Thunderbird for a couple of days - then restored it. However with the result that my laptop can receive and send emails, my PC can receive but not send, and my phone can neither receive nor send.

YouSee claims that everything looks OK from their side, and that any correction is up to Thunderbird.

Can you possibly help me?

Peter Lerche

Using TB 141.0 MS Word 11 Too many wrong videos, too many old explanations. It's August 2025. Please, I'm not a computer wiz. Just a home novice. OK with specific directions. How to export my Gmail contacts list and import it to my TB contacts. I have tried basic gmail export...but should it be "google .csv", " or what? I don't think I have Outlook loaded anymore on windows 11. If you could help by actually sending me instructions that I will follow direct. ie: Sign into Gmail>click on contact file to be exported>export contacts and click "google .csv" (or the correct choice there)..then what? I've been trying and it wants me to save to a file...but how? And which file? I know it's an effort on your part, but I will print and save going forward. Thanks so much. LS in AZ.

I established a new email address in my existing Thunderbird platform. It only configures an "Inbox" folder and a "Trash" folder. I can not add a "Sent" folder (or "Draft" or "Archives", etc.). I tried deleting the account and re-establishing it, but that did not work. I did notice that emails sent from the new account are being saved in my "Local" account folder's "Sent" folder.

I have also gone into "Account Settings" for the new email account to make sure the software was properly configured with where to store sent messages and drafts, but the setting reverst back to the "Local Folders," presumably because there is no "Sent" folder in the proper account.

Please Help!!!

I want to close one of my email accounts but it is the one to which Thunderbird sends me emails, such as info about updates etc. I don't want to close the account and then find I get no information from Thunderbird. How can I change the email address that you use for me?

I can't find a way to create a new contact list.

The help says to go to the "File" menu. I don't see a file menu.

An online search for “Thunderbird add contact list” suggested I click on "New List." I don't see it.

I just updated to version 128.14.0esr (64 bit). I don't see the missing menus in this version either.

Have used Thunderbird for years and 2 years ago, my Cox service eliminated supporting their own emails server and now Yahoo supports. I am having a problem over the past 2 weeks where I click on my Thunderbird app to load the program and get emails, and it times out after about a minute every time I try to log in. I have deleted the Thunderbird account and tried to add a new account, and it continues to time out every time.

What am I doing wrong?