Yonke imikhiqizo Community Forum

Hi - I'm trying to install Thunderbird on my mac to get away from a google workspace account. I've downloaded it a couple times and it crashes immediately after the login screen. Same thing in Troubleshoot mode. It's a work computer so it might have something installed preventing the desktop app from working. Thanks for any help you can offer.

Ben

Since updating to version 135 all the tabs crash. I've uninstalled\reinstalled, deleted app data, disabled AV and created a new profile. The only time it works is in troubleshooting mode. I've looked at extensions and plugins and I'm only seeing OpenH264 video codec and Widevine content decryption. I've disabled those but still get the crashed tabs.

I'm also not generating any crash logs.

When compacting local folder in thunderbird I get error message ( The folder trash on local folders could not be compacted because writing to folder failed. Verify that you have enough disk space [which I do] ,and that you have write privileges to the file system, then try again.) and nothing will work on thunderbird afterward.

I have Firefox on two separate computers, a desktop running Win7Prof64bit and a laptop running Win10Pro 64bit. Both Firefox installations crash constantly, ie every 10 - 15 mins. They show the "Gah! Firefox just crashed. Please tell us what you were doing", and the box to return the data to Mozilla. With Restore This Tab at the bottom.

I always send you these reports but in about a year, the problem remains the same. Nothing has improved, I never hear back from you. Two different PCs, two different OSs, constant reports, no improvement. Why do I never hear from you? Why does this problem continue endlessly? I'm wasting my time sending you the reports. You take no notice. If you do, why does the problem continue and why do I never hear from you?

I have been having issues with Firefox since the new update. It will work for 5-10 minutes and then cashes and freezes my Macbook. I then have to restart my entire system. I have always loved using Firefox but lately its more of a pain and have been thinking of changing,

Sorry! 0 results found for ‘Thunderbird locks up when I'm typing an email and says Thunderbird is not responding. Has been going on for a couple of weeks. I'm on Windows 11.’ for ‘Thunderbird’

If there's one thing I can count on, it's that the next version of Thunderbird will be more buggy & unstable that the previous version, and v 140 certainly does not disappoint in that category. It crashes & closes multiple times per day. Any time something else may be using a lot of resources, Thunderbird freezes up and if I click on it, the app crashes & closes. At least the previous just stayed greyed out until it was able to complete the task and didn't crash & close. Great job Mozilla.

I Use Thunderbird on Windows 11. I changed a retention policy on a Local folder to delete messages older than 60 days. Since then Thunderbird stopped responding and has never worked since. When i open Thunderbird it immedeatley stops responding. It does not show any emails in the inbox and folders will not open. I have unistalled and reinstalled Thunderbird opened and closed in Safe mode but nothing works. Closing Thunderbird task via Task Manager does not help either.

I am having several issues with Thunderbird. First is random high CPU usage at times where the whole computer runs slow and Task Manager says Thunderbird is using high CPU and that Thunderbird is not responding. This will last 15 to 30 seconds.

The other issues are with calendar. It used to be in calendar that when finding events that a repeating event would only show up once in the found list. Now, repeating events show up as multiple individual events in the find list making searching difficult. The other calendar issue is when requesting "find events" it will take 30 seconds for the search box to unlock and allow characters to be entered into the search box. Up to that time Thunderbird is frozen. Any suggestions?

I am on Version 128.6.0esr

Windows 10

Thanks, Dennis

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?

I GOT TIRED OF FREQUENT FIREFOX CRASHES (C0000005) IN BOTH THE 64-BIT AND 32-BIT DESKTOP VERSIONS. I HAVE BEEN USING THE 64-BIT VERSION IN WINDOWS 11 (I HAVE A HIGH-END SAGER LAPTOP WITH 32GB RAM. I INSTALLED THE FREQUENT FIREFOX UPDATES BUT THE PROBLEN PERSISTED EVER SINCE VERSIONS 42X WERE RELEASED. I TRIED THE 32-BIT VERSION BUT THE PROBLEM PERSISTED. FINALLED, I TRIED THE DEVELOPER VERSION: NO MORE CRASHES! I READ THE RESPONSES FROM YOUR CLUELESS STAFF TO OTHER CUSTOMERS WITH THE SAME TROUBLE. THIS IS NOT A WINDOWS ERROR; THIS IS A FIREFOX APPLICATION ERROR. MAYBE SOME OF YOUR FIREFOX DEVELOPER CODERS SHOULD ASSIST THE 32-BIT AND 64-BIT DEVELOPERS. OR, DUMP THE VERSION 4X CODE AND BUILD ON THE MORE STABLE 39X CODE. ALSO, DON'T BLAME WINDOWS FOR FIREFOX APPLICATION ERRORS. AND...NEVER SUGGEST A WINDOWS REINSTALL FOR FIREFOX ERRORS!!!

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.

Firefox crashes every day or so on my home computer. The most common error message is "kmode exception not handled." I've tried the suggested fixes. Nothing helps. The crashes are not being recorded in "about crashes" or in %APPDATA%\Mozilla\Firefox\Crash Reports\. So it seems the crash reporter has to be fixed before the problem causing the crashes can be identified. Firefox does not crash on my office computer and no other program causes my home computer to crash. Thank you.

Hi, I’ve noticed that Firefox on my Android device often crashes or freezes whenever I try to launch or access certain modded APK-based games. I’ve already tried clearing cache and disabling extensions, but the issue still happens.

Is there any known fix or setting that could help Firefox handle these links or game launches more smoothly?

Thanks in advance!

I'm using Win 11 and ver 140.3.1esr (64 bit)

Thunderbird works perfectly except for just one thing. Every time I write any email it freezes after about 2 minutes. If it's a short email, it gets sent. If it's longer, before I can get to the end, the program freezes, and I have to use Task Manager to stop it. No problem receiving and reading emails. This started about a month ago.

I use Bitdefender, but it still happens with that off. Windows is up to date. Any ideas why this is happening? Thanks.

Ran into an interesting bug with Firefox since installing the macOS26 Dev beta. Whenever I use command space to bring up spotlight, Firefox become unresponsive, the beach ball will spin. It will only happen if Firefox is in focus when I use spotlight, and only if I am signed into Firefox sync.

I am not sure of a way to help replicate this issue as it seems to only happen when signed with Sync, but I would be happy to provide additional if I can.