Thunderbird Community Forum

Hi there,

I'm having an issue where I receive invitations by the owner of a calendar i subscribed to. I have to subscribe to the calendar to be able to schedule events with them.

When I receive the invite, it keeps saying "already processed" which is not the case. I dont have that event in my calendar and it has not been accepted.

I have checked that the subscribed calendar is not linked to my account (calendar settings, email account: empty) and the actual calendar is linked to my email account (calendar settings, my email account).

what should happen logically is the "subscribed" calendar should not be counted as my calendar, events should not be counted as already processed and invites should be clickable and then be transfered to the calendar linked to the receiving email address.

Mind you, thunderbird on mobile works like it should. Its only the linux client that has this issue.

Thanks in advance for any help.

Hello, I have an IMAP acocunt configured, the server is Zimbra and has several shared Inboxes inside my account. Each of these inboxes come with several subfolders (which have the same name in every Inbox), and I would only like to keep some of them displayed in Thunderbird, but the unsubscribe option does not work for a few of them.

I open up the "Subscribe" dialog, I can correctly navigate to the fiolders I want to unsubscribe and click them, which unchecks the mark. I click "Ok" and nothing happens. If I reopen the Subscribe dialog, the folders are checked, as if I did nothing.

Note that I can unsubscribe to most folder, only a couple of them have this problematic behavior.

I have tried enabling/disabling the "Show all folder" option in the Advanced account panel and Enabling/Disabling the local storage for these folders.

I have also tried to unsubscribe the folders, then manually erasing the mbox files and indexes in the account folder before clicking Ok. The msf file are immediately recreated.

In the screenshot, the folders marked with an arrow cannot be unsubscribed, no matter what I tried.

Hi,

TB recently prints unwanted text/information, this also happens while forwarding certain e-mails. As shown in the attachment TB wants to print seven pages although the original mail has only one.

What can we do?

Thank you in advance.

Regards

Jens Hollenberg

Have TBird 102 Installed on 2 Dell LapTop Machines - Win10 OS

The Installation Process Completes but am having issues with the

Incoming Email Server Settings, and the Out Going Email Server Settings. 

On One Installation ( Nov2025 TimeFrame) , the Emails come down into the InBox But Will Not Go Out.

On the Other Installation ( May 2026 TimeFrame ) ... Cannot set up Email Account ... username/password errors.

I have been using Tbird & Yahoo successfully for years. The Yahoo made the change to require OAuth2. After that change I did get new mail. After that I couldn't receive new messages. I decide this could be fixed by removing my Yahoo account from Tbird and setting it up again.

1. 1 starting from Account Setup, I enter my name, email address and password.
2. 2 Before clicking Continue I disable blocking on my pi-hole in case that could be an issue.
3. 3 A pop-up with a Yahoo ad appears.
4. 4 I click next and enter my password and click next again.
5. 5 I check a box to agree to some terms and Agree
6. 6 Tbird gives me a green box saying, "Configuration found in Mozilla ISP database.
7. 7 I ensure IMAP is selected and click Done.
8. 8 I get another pop-up from Yahoo
9. 9 I check a box to agree to some terms and Agree
10. 10 That green box turns yellow and now says, "Unable to log in at server, Probably wrong configuration, username or password."
11. 11 I can login to the Yahoo webmail page, and there I see a new message that start with, "Your Yahoo account XXXX was used to sign in to a new third part application on thunderbird."
12. 12 Accept cookies from sites is checked
13. 13 I am not using a VPN and my network is the same as when Yahoo and Tbird were playing nicely.
14. 14 Outgoing Server settings for Yahoo Mail list OAuth2 for Authentication method.

What else can I check to setup Yahoo with Tbird? Let me know if there are logs I can provide to help.

I am running Thunderbird 140.9.1esr on openSUSE Tumbleweed.

For a long time now, Thunderbird often runs at high CPU (80-100% of one core), for several minutes at a time (5-10 minutes). This seems to happen many times every day, with no apparent cause from my end. (I just got back from Lunch, and the fan on my laptop was going crazy because of the high CPU.)

What can we do to identify and fix this issue?

I opened Thunderbird today (technically Betterbird, I don't *think* any of the Betterbird differences would affect this) and my calendar is wider than the screen itself. I have no idea how to fix this. It might've happened because last time it was open, my laptop was connected to a larger monitor. I've attached a picture.

(I wasn't really sure what to select for the question topic; I went with accessibility because the issue is obviously affecting my usage.)

I upgraded my Fedora nad I think that Thunderbird 149 came with that upgrade. I cannot send mails. Ctrl+enter has no reaction. Downgraded to 148 and everyhing is fine. |<

I have Thunderbird on my Win 11 Pro Laptop and on my Samsung Android phone. My primary email account works fine on both devices. My secondary account with the domain name otakorp.org works fine on the Android Thunderbird app, but when I try to set it up on the Windows version it sees that it's a gmail server and sets both incoming and outgoing servers to Oauth2 authentication, but generates an unspecific error (see included image). Any suggestions?

Hi, I've been using Thunderbird latest version for a few days. Too much I have a problem that is bothering me. I have 20 accounts and if I choose Unified Folders, on the six of Tunderbird I see only a part of the Accounts and precisely 14. To solve my problem I also used the "Unified Folder Debugging" add-on but it didn't solve the problem. Why do I have this problem? I would like to use Unified Folders but I can't do it because I don't have any Accounts. Thanks for some info.

I have used Thunderbird as my mail client for many years on both my Windows workstation and my Windows laptop. My ISP is Spectrum. All of a sudden, today, Thunderbird has stopped sending outgoing emails from my workstation. I get a message telling me that Thunderbird can't connect with the server. Outgoing email seems to work fine on the laptop, as well as on Spectrum's own Webmail interface. I think I'm getting all my incoming messages, although it's hard to know that for sure. Both machines are running Windows 11. I haven't changed any configurations. What can I do to get Thunderbird to function correctly on my workstation? Thank you.

I always get: "newmsg Trojan:WIN/SuspiciousAttachmentScript.a" and "C:\Users\newb\AppData\Local\Temp Trojan:WIN/SuspiciousAttachmentScript.a" from Mcafee when I open Thunderbird. I'm only getting this in Thunderbird and suspect it's a false positive of some kind. It's still worrying and I'd like to eliminate this. This has been going on for a couple of months. I've run several cleaners and anti-virus programs on the system, but it still returns.

thanks

I have remote content blocked as a default. If I choose to view remote content **for an individual message**, there seems to be no way to reblock it, because the yellow bar with "options" disappears after you allow the remote content for that message. (Whoopsy! Changed my mind! Let's say I don't want the remote content to transmit that I opened the message a second time when I do so.)

Mail Content > Exceptions does not help in this case, since I allowed the remote content from a specific message, rather than allowing a wider permission, such as allowing remote content from a particular email address or website. Copying the message link into Mail Content > Exceptions (as suggested in an old post) doesn't work, either.

So it seems I am now stuck having remote content active each time I need to open that message?

Windows 11 Thunderbird = current at the time of this writing. (150.0.2 64bit)

'Morning, 5-19-26

I'm having an issue that's not major, but irritating. and getting time-consuming.

'Recently left Windows 11 behind (good riddance!) and have gone back to Linux Mint, which is working out well for me. But there's a strange and persistent glitch" when pasting into T-bird from Autokey, which I use daily,

I get typos, dropped spaces, etc, whenever pasting into T-bird BUT INTO NO OTHER PROGRAMS. My workaround has been to paste first into a text editor (which receives the pasted text perfectly formatted), THEN into T-bird from there.

Again, it's not a major, life-threatening issue, but at the end of the day it's a real time-consumer.

I've posted this question on other forums, but no one can give me an answer. Is there a text setting or something n T-bird that I'm missing? A different form of ASCII, etc? Thanks for any suggestions you can think of.

Btw, I've used and loved T-bird for many years, and love it. Best email client I've ever used, and I've been online since the mid-90's (yeah, I'm an antique! ha ha). I try to send a donation once / year. Keep up the good work!

Thanks again, Dave Harnish drs@sosbbs.com

John 3:3