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My firefox randomly crashes every 2 minutes after updating to the newest version (157.0.1（64 bit）). Here are the four crash reports I got today. bp-7b30056f-c2e1-455d-b352-e3b400261009 bp-5088479d-93ac-4482-91e7-6c7a10261009 bp-f0e865a5-764e-4de3-a3af-440f40261009 bp-2b41e32b-24b5-404d-9966-26abc0261009

Greetings,

I've lost the ability to receive e-mail, Suddenly Thunderbird just quits on me with no warning. Apparently I can still send mail but cannot receive. This is the second time this has happened to me in as many months. How do I fix it? How do I prevent it?

Thanx

Was kann ich tun? Habe Probleme mit mozilla. Bei derAuführung der Programme Thunderbird ( ständig ) und Firefox ( manchmal ) kommt es zu Abstürzen wie Programm keine Rückmeldung, einfrieren so das keine Eingaben mehr möglich sind und ich jedesmal das Programm schließen und neu starten muß.

Firefox tabs keep crashing for no apparent reason after this Nova update (its not website specific). here's a list of my top five Submitted Crash Reports (there are dozens more but ill keep this brief): Report ID Date Submitted

• bp-0d889e7b-0c50-4d71-ac37-c37700261002 02-Oct-26, 22:01
• bp-2587c1c7-7ab3-42da-983f-aefe60261002 02-Oct-26, 21:59
• bp-963e9304-f1db-4aac-9d4e-7c8300260829 29-Aug-26, 10:31
• bp-3d6f6fd0-c34a-460a-a1c2-fe9200261002 02-Oct-26, 22:04
• bp-e7f70176-6daf-4c81-a139-56f060261002 02-Oct-26, 22:04

i don't believe its memory issues because my PC has 61.6 GB of 474 GB free, and i never got these crashes before the update, with the same amount of data. dunno what else to add here, let me know if i need to provide something more

I downgraded to Firefox 140ESR yesterday to get rid of the silly circles and gradients. The update was so visually distracting I found the browser to be unusable. However, now almost any website I visit gives me a Gah your tab just crashed. Is there a way to fix this while staying on 140ESR? Please refrain from answering if your solution is to upgrade. Thanks.

Additional details:

• Operating system: Windows (please specify your Windows version if known)
• The issue started on August 25, 2026.
• Thunderbird becomes unresponsive shortly after startup.
• A “System Integration” prompt appears before Thunderbird becomes unresponsive.
• I cannot click any buttons once Thunderbird becomes unresponsive.
• I tested both available profiles (“default” and “default-esr”) using the Profile Manager, but the same issue occurred with both profiles.
• I also started Thunderbird in Troubleshoot Mode with all add-ons disabled, but the issue still occurred.
• I can force-close Thunderbird through Windows when it becomes unresponsive.
• I have not deleted or modified any Thunderbird profile files because I want to avoid losing existing email data.
• The profile containing my email data appears to be “default-esr”.

I would appreciate any guidance on how to identify the cause of this issue and restore Thunderbird without losing my existing emails.

When I try to start Thunderbird on my Windows 11 laptop it does not start properly It is haging ond after a whike i get a message that thunderbird does not respond ("svarar inte" in swedish). Sometimes if I try to reinstall Thunderbird it starts up, But today nothing happens.

win11 :Thunderbird will not launch, It appears the issue is a Background Process labelled "Thunderbird" which is unresponsive to "end task" in Task Manager. Will launch after reboot.

I have no clue as to how Tbird into this state, but it has happened more than once

Thunderbird Version 156.0.1 Build ID 2026092215180

Abbreviations ( Nat'l for National) locks up a send function. A mis-spelled word locks up TBird when I click send. For either instance the mouse will not click on anything except the red X delete.

In the last week or so, Thunderbird has become unreliable about opening - sometimes it opens with no problems, sometimes not. Sometimes closing the VPN appears to solve the problem, other times not. Sometimes opening the VPN appears to solve the problem.

Overall, I'm looking for a new email client after years of using Thunderbird.

There is nothing obviously happening with my browser. It doesn't crash when I am using it. But I keep getting, several times/day, the dialog box shown in added images below.

So, similar to this post but I haven't downgraded, only upgraded.

OS: Windows 11 (26100.8893) Browser: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:153.0) Gecko/20100101 Firefox/153.0

I can load it up in the morning, load all my standard tabs, then not too long into it a tab will 'crash' and require a reload. The reload then says its a dramatic crash and the whole browser needs to restart. Soft or Hard (i.e. "Exit") restarts always then ask to create a new profile on startup. This means I lose so much configuration (settings, etc) that is not in the Account Sync, meaning huge amounts of time have been wasted setting Firefox back up again every day.

When I go to about:profiles I can see all the old and new profiles (recently cleaned up all the old ones).

I do use my FF Account across various versions of Firefox (run a linux OS that still has a 14x version - need to upgrade OS to get more recent, but its a significant upgrade that had previously failed so not high on my 'want to resolve' list) - all the Windows OS's have the latest FF.