Thunderbird Support Forum

Right now I'm using 3 different email accounts on Thunderbird. All 3 of them are Office365 accounts. For some reason, 1 of the 3 accounts is prompted at least once a day, sometimes twice a day, to enter my password on the Office365 website popup that is used with the OAuth2 authentication process. It's very irritating, all 3 accounts are Microsoft Office business accounts. What would be the reason why it needs to authenticate daily? Is there no password manager to do this automatically once it's been entered once? Can I pick a different authentication method? What is the correct change to make so I don't have to keep typing in my password every day?

"Unable to write the email to the mailbox. Make sure the fle system allows you write privileges, and you have enough disk space to copy the mailbox."

After years of working fine, this message has started appearing whenever TB tries to retrieve messages. I've checked that there's enough space (there's many GB free). I've checked the authorisations of the email folders, they're all fine (Full Control in all cases). I found an answer in a forum suggesting that a rogue antivirus might be the problem, but I'm only using MS Defender.

In desperation I removed the entire Roaming/Thunderbird folder, uninstalled TB, reinstalled it (version 115.12.2), created a new profile for my email address (it's a Yahoo email address, and I can retrieve the emails directly through the Yahoo Mail website with no problems). But I'm still getting the same error message. TB tries to retrieve the messages, it says 'Retrieving message 1 of 105' for several minutes, then the error message popup, and nothing appears in the Inbox. (105 is all the incoming messages as of now since this started happening).

I'm completely stuck. Any suggestions?

When I wanted to add a new subfolder to an existing folder, I think I used to right click on the folder under which I wanted to create a new subfolder. A menu would pop up with a line about adding a new subfolder. Now that option no longer appears. What happened, and how can I fix this, or how do I add a subfolder now?

Michael Tad Parks+, SSC 70741.2122@compuserve.com

Hi There,

After installing the new thunderbird release 15.12.2, i started getting alot of duplicates. i was messing around in the thunderbird layout etc There was a report about a damaged mailbox, but not the inbox. i think i was behind on compacting. Then i realized most of inbox was gone !

i tried the repair suggested in Thunderbird properties on the message summary index file .msf when i first noticed problem, i made copies both inbox and .msf currently:

Inbox itself is ~2Gb, but  Inbox.msf file size is 0 

i have copy of the Inbox, but copy of Inbox.msf is gone...

i reinstalled the latest thunderbird. but didn't help.

I took the advice of @Toad-Hall and uninstalled the flatpak version of thunderbird, then installed the version available as an rpm via dnf/yum and that worked. Life is good.

i'm running windows on a bootcamped macbook pro, windows 10 home. did i install correct version ? any other ideas ?

i have used thunderbird for many years and appreciate you'all for keeping it going !

thanks, Kathy

I don't know my password to open my email, how do I find it? I have had my email account for years never needed to sign in and now I'm out, I need help I have a lot of important messages waiting.

I've noticed that contacts disappear from my address book. On checking it seems Thunderbird is automatically deleting them!

This is unwanted behaviour.

I need it stopped.

tnx.

On Mac Sonoma 14.4, Thunderbird 115.12.2

When I try add my Gmail account or calendar account, the Gmail sign-in prompt page comes up but is entirely blank and does not load. When I restart my laptop I can sometimes get the page to load but when I allow my account to be connected, the next page does not load still. So the authentication process does not finish. The result is the same whether I enter my password on Thunderbird or not.

I have uninstalled and reinstalled Thunderbird, and downgraded to an older version. Same issue.

I am not sure if it is a Mac issue but I am only having the issue with Thunderbird.

I've noticed recently that addresses that were in my personal address book have disappeared, basically they've been deleted. This next bit is from memory so excuse the vagueness. The last time I looked for these I found them in a bin marked as "deleted by thunderbird".

What is going on?

I need these addresses back.

i have 2 desk top windows 10 comps and an ipad and i phone which all share the same email address. 1 comp works fine, the other desktop and ipad will send emails but not receive them, the iphone can send emails and sometimes receives them but not all the time. IMAP port 993 and ssl/tls with normal password. Disabling Avast anti virus did not fix it. any ideas?

On powering up my PC this morning, opened Thunderbird and everything was gone - email settings to my various accounts, settings, calendar, addresses etc nothing is left at all

All I have is a basic screen : "To set up your existing email address" etc

Compact folders: caused a saved draft email to disappear. Closing and re-opening Thunderbird resolves this. Suggest the help document https://support.mozilla.org/en-US/kb/compacting-folders-potential-complications be updated to advise this solution (before the user raises an issue). How does this message get to someone who can action this?

Hi All my emails from before February 2023 have disappeared. I live in Australia my server is Telstra who informed me that it isn’t their fault and that I should contact you. Many thanks Bee

Every time I open up Thunderbird a tab opens up containing a Thunderbird Privacy Notice. As I'm working then every so often a number tab opens with the same information. If I'm in Thunderbird for long I can have a dozen on more identical tabs. How do I stop this?

As of Sunday, Thunderbird can no longer reach my ATT server to download email. It has behaved for ten to fifteen years. Last time someone at ATT fixed it. I have been on the phone or on screen with ATT most of my waking hours since Sunday. (In the process I lost my internet, my landline, my cell connection, etc.) Everything is restored except the connection between Thunderbird and ATT. Everyone thinks changing my password will do it. Done it four times. It gets me into the ATT mail. I have replaced the password in Thunderbird settings with it to no avail. Is there anything you can think of? Not only is Thunderbird more attractive than ATT, I have thirty years of mail boxes there, a continuation from Eudora. I will appreciate your wisdom.

I can not send emails to anyone. I have checked everything listed on the email help support list. I have cox.net and went to them to get answers with no results.

Im trying to put my email (prkirby@sky.com) on to thunderbird (version 115.12.1 64Bit) running on a windows 11 computer I have 2 other emails which run perfectly All my settings are correct, pop 3 incoming pop.tools.sky.com port 995 outgoing smpt.tools.sky.com port 465 both my username and password are correct, all these settings work when using outlook 2013 pro plus on a computer running windows 7 username and password also work when signing in to emails on different computers When I create the account the message I get is password/usename incorrect Any help will be gratefully received Phil

Hello,

I updated to 115.11.1 (32-bit) and unified folders will not appear and the option will not stay checked. I have exhausted my options. I previously had 64-bit with same issue so I deleted and installed 32-bit as some said this would help the issue ( I'm on 64-bit windows 10 OS).

I've tried deleting smart mailboxes, virtualfolder and jsontreefolder

nothing is working, I am at wits end. Please help!

I'm connecting to an MS Exchange server via smtp.office365.com and mostly this works OK by now. I do have a stupid problem, however: After deleting several folders, they always "come back" as "ghost folders" (grayed out and without messages) and it's impossible for me to get rid of them. Very annoying. I've tried a couple of steps:

• of course, I tried deleting the folders through the Thunderbird interface, also from Trash, where they first move to
• I also tried to delete msf-files associated with the deleted folders -- to no avail
• I also tried to unsubscribe from these folders using the "Subscribe" interface -- this is not possible: I can tick off the folders, save my choices, but as soon as I open "Subscribe" again, these folders are back
• I also tried to use Outlook, but the deleted folders are not shown in Outlook -- it seems to me that Thunderbird has difficulties letting them go

I'd be very thankful for any constructive help!