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Every time I open Thunderbird, I get the attached pop-up which I can't delete except when I use control alt delete. It always comes back. How can I permanently delete it? Thanks, Mark

Firefox not responding. I have tried everything on the Help pages. I have tried reset of everything. I have uninstalled and reinstalled from scratch. Still: when I open it: Firefox does not respond. And everything else also is very slow then. In Windows joblist I can see Firefox with 7-15 threads. One of them "not responding". I have no problems with Chrome nor Edge - W11, 16GB Ram

Could someone please help me retrieve my crash report history? My Firefox crashes more than 10 times a day. When I check **about:crashes**, it doesn’t show any reports right now, although I saw some there a few days ago. Is there any way to recover those reports so I can submit them here for further guidance from experts?

Deleted around 400 unread emails at one time, something not done before. Thunderbird shut down, now can not log in. Do not have backup password or two step authorization. Any hope for getting back in?

Windows10 simply multiplies the numbers of active Mozilla Firefox Apps which are open. Every day for about two weeks I've been having to delete hundreds of Firefox Apps open in the Task Manager. So many open in a very short time it locks up the Win10 system. I've attached a pic

Win10 will no longer let me download & transmit a .jpg file, sorry

Watching a CNN video on YouTube Firefox suddenly freezes and does not accept any further actions. Even shutting down it will block the process and I need to use the "Shut down anyway" function. Similarly, Thunderbird will lock up in the middle of writing a response, but here it is just the window and I lose what I typed, but I can go back and push "reply" again and retype the answer. Whether these are down to similar issues I don't know. Obviously, this sounds like a graphics driver, so I made sure all updates are installed and there is no further update available for both, Firefox and Thunderbird as well as the system drivers. System: OS Name Microsoft Windows 11 Pro Version 10.0.26200 Build 26200 System Manufacturer Gigabyte Technology Co., Ltd. System Model Z890 UD WIFI6E System Type x64-based PC Processor Intel(R) Core(TM) Ultra 7 265KF, 3900 Mhz, 20 Core(s), 20 Logical Processor(s) SMBIOS Version 3.8 BIOS Mode UEFI Installed Physical Memory (RAM) 32.0 GB Total Physical Memory 31.7 GB Available Physical Memory 15.2 GB Total Virtual Memory 39.5 GB Available Virtual Memory 18.7 GB Page File Space 7.75 GB

Any pointer is appreciated as this is really annoying. Thanks

I’m currently facing a very frustrating issue with Firefox. I have been using Firefox for many years, and it is my favorite and most comfortable web browser for my day-to-day work. I rely on it heavily as all my bookmarks and other important details are saved there.

However, over the past few weeks, Firefox has been crashing more than 10 times a day. I have already tried all the troubleshooting steps available in the forums and through AI support, but none of them have resolved the issue. I also tried installing and using the Firefox Beta version, but the problem still persists.

In our environment, other users and devices are not experiencing this issue, so it does not appear to be related to internal firewall or antivirus restrictions.

Could you please help me troubleshoot this issue? I am attaching the error screen that appears after the crash along with the crash report for you

Hello! The other day everything worked as usual, and I shut down the computer for the night. The next morning, Thunderbird immediately crashed/shut down when starting each of the 2 profiles I always use. The 3rd profile, which is the default-release running a different email, still seems to work normally. Thunderbird 115.10.1

I have tried Windows (10) safe mode, as well as thunderbird Troubleshoot mode and working offline, but the issue continued to occur.

I'm at a loss now as to what could cause 2 profiles to suddenly cause it to crash. By the way, one profile is for a gmail account and the other one is for an Outlook account, so they don't seem to be related.

In case it helps, there were 2 Microsoft Visual C++ programs installed or updated, and updates to Microsoft 365 and Google Drive just before the problem started. These were all auto updates in the background.

Any help from the Community would be greatly appreciated. Thank you!

AdapterDeviceID: 0x9bc8 AdapterDriverVersion: 30.0.101.3111 AdapterSubsysID: 86941043 AdapterVendorID: 0x8086 AvailablePageFile: 7602827264 AvailablePhysicalMemory: 5482582016 AvailableVirtualMemory: 138522402320384 BackgroundTaskMode: 0 BuildID: 20260216153405 CPUMicrocodeVersion: 0x100 ContentSandboxCapable: 1 ContentSandboxLevel: 9 ContentSandboxWin32kState: Win32k Lockdown enabled -- default value is true CrashTime: 1772717547 DOMFissionEnabled: 1 DOMIPCEnabled: 1 EMCheckCompatibility: true GPUProcessLaunchCount: 6 GPUProcessStatus: Running GpuSandboxLevel: 2 GraphicsCriticalError: |[0][GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=8.27141) |[16]CP+[GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=23.7756) |[17]CP+[GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=23.7756) |[18]CP+[GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=23.7756) |[19]CP+[GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=23.7757) |[20][GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=27.6517) |[21]CP+[GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=27.6518) |[22]CP+[GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=27.6518) |[23]CP+[GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=27.6518) |[24]CP+[GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=27.6518) |[25]CP+[GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=27.6518) |[26]CP+[GFX1-]: IPC Channel is already torn down unexpectedly

(t=27.6543) |[27]CP+[GFX1-]: IPC Channel is already torn down unexpectedly
(t=27.6543) |[28][GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=31.3125) |[14][GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=23.7753) |[15]CP+[GFX1-]: CompositorBridgeChild receives IPC close with reason=AbnormalShutdown (t=23.7756) 

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DWrite+ WR? 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RSVP UDPv6 Service Provider : 2 : 23 : 2 : 17 : 0x22609 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9d60a9e0-337a-11d0-bd88-0000c082e69a 
RSVP UDP Service Provider : 2 : 2 : 2 : 17 : 0x22609 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9d60a9e0-337a-11d0-bd88-0000c082e69a 
Hyper-V RAW : 2 : 34 : 1 : 1 : 0x20026 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 1234191b-4bf7-4ca7-86e0-dfd7c32b5445 
MSAFD L2CAP [Bluetooth] : 2 : 32 : 1 : 256 : 0x20006 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9fc48064-7298-43e4-b7bd-181f2089792a 
MSAFD RfComm [Bluetooth] : 2 : 32 : 1 : 3 : 0x20026 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9fc48064-7298-43e4-b7bd-181f2089792a

useragent_locale: en-US This report also contains technical information about the state of the application when it crashed.

Good morning

Since this morning (05/03/2026) Thunderbird freezes within a minute or two of opening the program.

Everything in the program freezes up. I cannot even close it.

I am running Version 140.8.0esr on a Windows 10 PC.

Initially I was getting a pop up warning message that ask me to confirm if I wanted to send an email with attachments of over 20 MB. There were 3 or 4 such messages. I had not tried to send such emails.

I checked the Outbox in Local folders for old messages, but it was empty. I also checked the Unsent messages files in Local Folders in the Profile folder. I deleted the Unsent Messages.msf file to no effect. I renamed and replaced the Unsent messages file. Also no change.

I checked for crash logs but there are none.

I have run out of ideas as to what to try next. Does anyone have any advice?

It's pretty much in the title. My in box freezes up and no emails arrive. Microsoft will drop drop down a box asking me if I want to open THUNDERBIRD and says make sure I'm using a trusted server - app??? I don't understand any of this!

I have never deleted so many emails at one time, around 500. Did I exceed the limits of Thunderbird? I cannot log on. Cannot see new emails. I have been on emailsrvr.com and did verify my passwords. Thank You

Last time the Fire Fox updates I noticed a weird change with the browser's behavior. the browser keeps crashing just anywhere I go! I keep losing my tabs and got kicked out of the browser losing the webpages where I was! Please fix this problem and for now at the moment I would be ok if I could go back to the last old version before that happen? I appreciate your help guys!