Thunderbird Community Forum

The help page doesn't include my version of T'bird, only going up to version 128. When I try to create a new mail account, it only asks for my name and the new email address, then goes into a continuous search loop.

For about the last year when I try to open Mozilla Thunderbird calendar, instead of taking me to the active calendar page, I get a “Not Responding” message and an hourglass for about 1 minute. That eventually disappears. I then have to select “Calendar” and wait another minute or so with another “Not Responding” message before I can finally get to the active calendar page and do what I wish to do on the calendar. When I remove the app and reinstall it, the problem disappears once ONLY and reappears after that. Can you suggest a solution to the problem, please. I have a Dell Inspiron 3793 laptop.

Thank you.

EDL

Hello, I hope this message reaches you. I have a Mac operating on OS 10.15 .7. Ever since I upgraded my Thunderbird to the 141.0 version, two things happen: 1) the fans of my Mac start ventilating very soon (and the battery starts going down) 2) when I quit Thunderbird , everything goes back to normal , but 10 seconds after, a window opens reporting an unexpected shut down. I usually click OK , but when I click "report" , nothing happens. Thanks for your help J.C.

Ever since I updated Thunderbird on my Mac (OS 10.15) , it sends a message + low-down of event (to be sent to Apple apparently) AFTER I quit Thunderbird : "Thunderbird quit un expectedly"

Hello! I used Thunderbird on a MacBook Pro with MacOS Catalina 10.15.7. No problems for years up to version 139.x. Now, starting with version 140.x, high CPU load and crash when exiting the Thunderbird. App Error also occurs with a completely new MacOS 10.15.7. Installation only with Thunderbird 141.0 and empty profile.

Does anyone have any tips?

I would like to continue using Thunderbird without any changes.

Best regards, Robert, Austria.

Thunderbird will not open. Instead a page appears asking me to open a new account, with an octopus icon and the heading FREEDOM. Is this a scam? I am desperate, I constantly need access to my sent emails and address list. What is happening? I do not understand the terminology on the page about crashes.

Starting yesterday 4-3-2025 my Thunderbird email keeps locking up and saying it is not responding. I can close it and open it and then work with it for 2 or 3 minutes and it will start not responding again. This is a consistent problem the last few days. I did check and it said there was an automatic update on 4-2-25. I am not sure if this had anything to do with it but i did go in and request an update about 2 hours ago today. This has not helped as I still consistentaly get the not responding problem. Please advise what I can do to fix this.]

I believe this started with this upgrade to the client. I routinely was able to select a piece of text in an email and click the Insert Link... button, fill in the data, and click OK to embed a link.

Now I select a piece of text, press the Insert Link button, and Thunderbird hangs, requiring Task Manager to kill the program.

Embedded links already in i.e. templates work fine, but cannot be edited or upgraded.

Anybody else seeing this, or am I (typically) just being stupid about something?

Thanks John

Thunderbird crashed on me last night: "thunderbird killed by SIGSEGV"

The attached image shows that I'm being prompted for an API key. I'm not sure what that is or how to generate one (I presume unique to me?).

I believe I need one in order to file a bug. I can't seem to circumvent it.

Can anyone guide me in the right direction please?

Thunderbird started crashing randomly about 2 days ago, however, after restart, it would remain running if I switched to troubleshooting mode. I removed an add-on from Bitdefender in troubleshooting mode.

Today I can't even open Thunderbird-- it crashes on launch. It won't launch even if I hit the Shift key or if I turn off antivirus.

Here is the most recent submitted crash report:

Crash ID: ⁨bp-b52cd345-636f-445a-ab4c-764ca0250114⁩

Can someone please give me guidance on what is going on and how to fix it?

Thank you.

I've been having issues with Thunderbird randomly hanging over the last few weeks. It's always been slow to upload all my gmail messages, so I let it get done with that before I start reading. However, now it randomly decides to hang forever. It generally happens when I delete or move an email to another folder. It doesn't complete the function. I can click on other emails, but it doesn't open them. The UI just sits there with the blue progress bar shimmering away, forever. None of the window control work (File, X, etc.). I have to use the Task Manager to end the Thunderbird task. When I start it up again, the message will be moved or deleted, and I can view more messages until it decides to hang again. This happens about four times per day.

I have an MSI GS75 Stealth 9SF laptop, running intel Core i7, Windows 11 (up to date), and the most current version of Thunderbird.

I didn't see anyone else commenting on Thunderbird hanging frequently, so I'm wondering if it's just me.

Earlier I asked a question about why Thunderbird crashes when I click on the link to a healthcare forum sometimes. Someone named Wayne kindly responded by asking if I reported the crash, but I am not getting the window that asks you to report the crash and leave a comment or crash report # either anymore. I'm only getting the window that says TB crashed and you can choose from force quit or wait only. Thanx again for any help. ~Kelly

Greetings. TB crashes - It originally died after a short period of working. Managed to empty cache which seemed to have solved it, but then it came back with vengence and has given me no chance to explore as it won't load at all. I used to use folders for mail and also regularly compressed, however not the last few years. I also have a few Mozbackup files, but restoring a recent one of these has not helped. I am now finding it frustrating not being able to reach my messages. It is set up mainly as POP, with a number of different email addresses all reached through a common inbox. I have been using TB for decades and this is first issue like this. Glad of any suggestions. David

I think it started to happen with Version 128.9.0esr | Released April 1, 2025. It is very simple to reproduce: 1. Start TB. 2. TB downloads new messages and continues to do it every 1 minute according to the setting. 3. In 10 to 20 minutes, it hangs. I have to force it to close and then restart it to check my email.

I believe it started to happen yesterday.

Is anyone else experiencing this?

Not sure if this Settings or what.

I was attempting to add a gmail address (one of mine) to Thunderbird. I got what you see in the attached. It's taking up one of my two entire monitors. (I'm writing via the 2nd monitor.) There's no title bar. The listed links don't work Ctrl F4 to close the window doesn't work. It's stuck there (Hung).

AND, "ALLOW" doesn't appear.

I'm going to have to reboot. But I really need to set this up.

Thanks, Kami

Hello, I am using Windows 11. I recently installed the latest update 24H2. Since a few days I have the issue that Thunderbird freeses after appr. 3 minutes of use. There is no crash report window popping up. I will be thankful to receive some kind of support. Thank you very much, Holger

Hello,

I am using Thunderbird on a Win 10 PC, with Bitdefender AV. Thunderbird crashes shortly after opening, generally within a few, say 10s. Crash reports are generated and sent.

The most recent are; bp-f3259bbe-b088-477a-b6da-aa4550250119⁩ bp-95774bbe-10bb-4026-be18-685030250119⁩ bp-f62abd3b-4597-417d-b05c-36ff30250119⁩ bp-55073989-ed27-4b83-a4ac-d677a0250116⁩ bp-601e3185-8abd-4123-b3a2-5dfa10250116⁩ bp-b3c6d9bd-55a3-420a-b917-937aa0250114⁩

The crashes continue when safe mode is used. Nothing else seems to be affected.

Any help and advice would be appreciated.

Charlie.