Thunderbird Community Forum

For over 1 week now I am finding that T-Bird freezes or locks after I have opened several messages. Leaves me unable to read or delete messages and unable to close down T-bird

Win 11 and Thunderbird 140 not working and I have tried all the things I found on the internet and none of them work. I have tried cleaning my registry and deleted directories and uninstalled thunderbird re-started and it will still not work.

I guess I have to forget thunderbird. It is a shame.

Dear All,

I am using Mozilla under Windows 10 in combiation with Bitdefender Anti-Virus-SW. Mozilla worked quite well with this combination. Since two day, I am not aware of any updates, I am not ablel to lauch Mozilla (no reaction). I deactived Bitdefender and tried also the protected mode for Mozilla (deactivating any add-ins). Unfortunately this had no impact. I could not find any helpful advice in forums. Prior de-installing and re-installing SW I am looking for additional hints.

Best Regards Jochen

From time to time especially when I make a break and the screensaver starts Thunderbird crashes. There is a split between the taskbar of Cinnamon and Thunderbird. The program doesn't react anymore. The only way to use it is to kill it and start it again. I really don't know why this happens. It is a new phenomenon. Here are my Systeminformation: [code] System:

 Kernel: 6.8.0-90-generic arch: x86_64 bits: 64 compiler: gcc v: 13.3.0 clocksource: tsc
 Desktop: Cinnamon v: 6.4.8 tk: GTK v: 3.24.41 wm: Muffin v: 6.4.1 vt: 7 dm: LightDM v: 1.30.0
   Distro: Linux Mint 22.2 Zara base: Ubuntu 24.04 noble

Machine:

 Type: Desktop System: Gigabyte product: A320M-H v: N/A serial: <superuser required>
 Mobo: Gigabyte model: A320M-H-CF v: x.x serial: <superuser required> uuid: <superuser required>
   UEFI: American Megatrends v: F42 date: 08/23/2019

CPU:

 Info: 6-core model: AMD Ryzen 5 2600 bits: 64 type: MT MCP smt: enabled arch: Zen+ rev: 2 cache:
   L1: 576 KiB L2: 3 MiB L3: 16 MiB
 Speed (MHz): avg: 2332 high: 3892 min/max: 1550/3400 boost: enabled cores: 1: 1557 2: 3883
   3: 1550 4: 3892 5: 1557 6: 1557 7: 1554 8: 3892 9: 1556 10: 3879 11: 1558 12: 1557
   bogomips: 81435
 Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3

Graphics:

 Device-1: AMD Baffin [Radeon RX 550 640SP / 560/560X] vendor: Micro-Star MSI driver: amdgpu
   v: kernel arch: GCN-4 pcie: speed: 8 GT/s lanes: 8 ports: active: HDMI-A-1 empty: DP-1,DVI-D-1
   bus-ID: 07:00.0 chip-ID: 1002:67ff class-ID: 0300 temp: 39.0 C
 Device-2: Microdia Webcam Vitade AF driver: snd-usb-audio,uvcvideo type: USB rev: 2.0
   speed: 480 Mb/s lanes: 1 bus-ID: 3-2:2 chip-ID: 0c45:6366 class-ID: 0102 serial: <filter>
 Display: x11 server: X.Org v: 21.1.11 with: Xwayland v: 23.2.6 driver: X: loaded: amdgpu
   unloaded: fbdev,modesetting,vesa dri: radeonsi gpu: amdgpu display-ID: :0 screens: 1
 Screen-1: 0 s-res: 3840x2160 s-dpi: 96 s-size: 1016x571mm (40.00x22.48")
   s-diag: 1165mm (45.88")
 Monitor-1: HDMI-A-1 mapped: HDMI-A-0 model: Samsung U28E590 serial: <filter> res: 3840x2160
   hz: 30 dpi: 160 size: 608x345mm (23.94x13.58") diag: 699mm (27.5") modes: max: 3840x2160
   min: 720x400
 API: EGL v: 1.5 hw: drv: amd radeonsi platforms: device: 0 drv: radeonsi device: 1 drv: swrast
   gbm: drv: kms_swrast surfaceless: drv: radeonsi x11: drv: radeonsi inactive: wayland
 API: OpenGL v: 4.6 compat-v: 4.5 vendor: amd mesa v: 25.0.7-0ubuntu0.24.04.2 glx-v: 1.4
   direct-render: yes renderer: AMD Radeon RX 560 Series (radeonsi polaris11 ACO DRM 3.57
   6.8.0-90-generic) device-ID: 1002:67ff

Audio:

 Device-1: AMD Baffin HDMI/DP Audio [Radeon RX 550 640SP / 560/560X] vendor: Micro-Star MSI
   driver: snd_hda_intel v: kernel pcie: speed: 8 GT/s lanes: 8 bus-ID: 07:00.1 chip-ID: 1002:aae0
   class-ID: 0403
 Device-2: AMD Family 17h HD Audio vendor: Gigabyte driver: snd_hda_intel v: kernel pcie:
   speed: 8 GT/s lanes: 16 bus-ID: 09:00.3 chip-ID: 1022:1457 class-ID: 0403
 Device-3: Microdia Webcam Vitade AF driver: snd-usb-audio,uvcvideo type: USB rev: 2.0
   speed: 480 Mb/s lanes: 1 bus-ID: 3-2:2 chip-ID: 0c45:6366 class-ID: 0102 serial: <filter>
 API: ALSA v: k6.8.0-90-generic status: kernel-api
 Server-1: PipeWire v: 1.0.5 status: active with: 1: pipewire-pulse status: active
   2: wireplumber status: active 3: pipewire-alsa type: plugin

Network:

 Device-1: Realtek RTL8111/8168/8211/8411 PCI Express Gigabit Ethernet vendor: Gigabyte
   driver: r8169 v: kernel pcie: speed: 2.5 GT/s lanes: 1 port: f000 bus-ID: 06:00.0
   chip-ID: 10ec:8168 class-ID: 0200
 IF: enp6s0 state: up speed: 1000 Mbps duplex: full mac: <filter>

Bluetooth:

 Device-1: ASUSTek ASUS USB-BT500 driver: btusb v: 0.8 type: USB rev: 1.1 speed: 12 Mb/s lanes: 1
   bus-ID: 1-7:2 chip-ID: 0b05:190e class-ID: e001 serial: <filter>
 Report: hciconfig ID: hci0 rfk-id: 0 state: up address: <filter> bt-v: 5.1 lmp-v: 10
   sub-v: d922 hci-v: 10 rev: dfc6 class-ID: 7c0104

Drives:

 Local Storage: total: 1.36 TiB used: 492.77 GiB (35.3%)
 ID-1: /dev/sda vendor: Western Digital model: WDS500G2B0B-00YS70 size: 465.76 GiB
   speed: 6.0 Gb/s tech: SSD serial: <filter> fw-rev: 20WD scheme: MBR
 ID-2: /dev/sdb vendor: Western Digital model: WD10SPZX-22Z10T0 size: 931.51 GiB type: USB
   rev: 3.0 spd: 5 Gb/s lanes: 1 tech: HDD rpm: 5400 serial: <filter> fw-rev: 1201 scheme: MBR

Partition:

 ID-1: / size: 72.78 GiB used: 44.49 GiB (61.1%) fs: ext4 dev: /dev/sda2
 ID-2: /boot/efi size: 187.1 MiB used: 6.1 MiB (3.3%) fs: vfat dev: /dev/sda1
 ID-3: /home size: 383.86 GiB used: 232.71 GiB (60.6%) fs: ext4 dev: /dev/sda3

Swap:

 ID-1: swap-1 type: file size: 8 GiB used: 782.5 MiB (9.6%) priority: -2 file: /swapfile

USB:

 Hub-1: 1-0:1 info: hi-speed hub with single TT ports: 9 rev: 2.0 speed: 480 Mb/s lanes: 1
   chip-ID: 1d6b:0002 class-ID: 0900
 Device-1: 1-7:2 info: ASUSTek ASUS USB-BT500 type: bluetooth driver: btusb interfaces: 2
   rev: 1.1 speed: 12 Mb/s lanes: 1 power: 500mA chip-ID: 0b05:190e class-ID: e001 serial: <filter>
 Hub-2: 2-0:1 info: super-speed hub ports: 3 rev: 3.1 speed: 10 Gb/s lanes: 1 chip-ID: 1d6b:0003
   class-ID: 0900
 Hub-3: 3-0:1 info: hi-speed hub with single TT ports: 4 rev: 2.0 speed: 480 Mb/s lanes: 1
   chip-ID: 1d6b:0002 class-ID: 0900
 Device-1: 3-2:2 info: Microdia Webcam Vitade AF type: video,audio
   driver: snd-usb-audio,uvcvideo interfaces: 4 rev: 2.0 speed: 480 Mb/s lanes: 1 power: 500mA
   chip-ID: 0c45:6366 class-ID: 0102 serial: <filter>
 Hub-4: 3-3:3 info: Terminus Hub ports: 4 rev: 2.0 speed: 480 Mb/s lanes: 1 power: 100mA
   chip-ID: 1a40:0101 class-ID: 0900
 Device-1: 3-3.3:4 info: YICHIP Wireless Device type: keyboard,mouse driver: hid-generic,usbhid
   interfaces: 2 rev: 2.0 speed: 12 Mb/s lanes: 1 power: 100mA chip-ID: 3151:3020 class-ID: 0301
   serial: <filter>
 Device-2: 3-3.4:5 info: CHERRY Keyboard type: keyboard,HID driver: cherry,usbhid interfaces: 2
   rev: 2.0 speed: 1.5 Mb/s lanes: 1 power: 100mA chip-ID: 046a:0023 class-ID: 0300
 Hub-5: 4-0:1 info: super-speed hub ports: 4 rev: 3.0 speed: 5 Gb/s lanes: 1 chip-ID: 1d6b:0003
   class-ID: 0900
 Device-1: 4-1:2 info: JMicron / USA External USB 3.0 type: mass storage driver: uas
   interfaces: 1 rev: 3.0 speed: 5 Gb/s lanes: 1 power: 896mA chip-ID: 152d:0579 class-ID: 0806
   serial: <filter>

Sensors:

 System Temperatures: cpu: 39.9 C mobo: 31.0 C gpu: amdgpu temp: 39.0 C
 Fan Speeds (rpm): N/A gpu: amdgpu fan: 1104

Repos:

 Packages: 3485 pm: dpkg pkgs: 3444 pm: flatpak pkgs: 41
 No active apt repos in: /etc/apt/sources.list
 Active apt repos in: /etc/apt/sources.list.d/agornostal-ulauncher-noble.list
   1: deb [signed-by=/etc/apt/keyrings/agornostal-ulauncher-noble.gpg] https: //ppa.launchpadcontent.net/agornostal/ulauncher/ubuntu noble main
 Active apt repos in: /etc/apt/sources.list.d/brave-browser-release.list
   1: deb [signed-by=/usr/share/keyrings/brave-browser-archive-keyring.gpg] https: //brave-browser-apt-release.s3.brave.com/ stable main
 No active apt repos in: /etc/apt/sources.list.d/devolo-updates.list
 Active apt repos in: /etc/apt/sources.list.d/google-chrome.list
   1: deb [arch=amd64] https: //dl.google.com/linux/chrome/deb/ stable main
 Active apt repos in: /etc/apt/sources.list.d/official-package-repositories.list
   1: deb http: //packages.linuxmint.com zara main upstream import backport
   2: deb http: //archive.ubuntu.com/ubuntu noble main restricted universe multiverse
   3: deb http: //archive.ubuntu.com/ubuntu noble-updates main restricted universe multiverse
   4: deb http: //archive.ubuntu.com/ubuntu noble-backports main restricted universe multiverse
   5: deb http: //security.ubuntu.com/ubuntu/ noble-security main restricted universe multiverse
 Active apt repos in: /etc/apt/sources.list.d/vivaldi.list
   1: deb [arch=amd64] https: //repo.vivaldi.com/stable/deb/ stable main
 Active apt repos in: /etc/apt/sources.list.d/zquestz.list
   1: deb [signed-by=/usr/share/keyrings/zquestz-archive-keyring.gpg] https: //zquestz.github.io/ppa/ubuntu ./
 Active apt repos in: /etc/apt/sources.list.d/vscode.sources
   1: deb [arch=amd64] https: //packages.microsoft.com/repos/code stable main

Info:

 Memory: total: 8 GiB available: 7.69 GiB used: 3.97 GiB (51.5%)
 Processes: 409 Power: uptime: 9h 12m states: freeze,mem,disk suspend: deep wakeups: 0
   hibernate: platform Init: systemd v: 255 target: graphical (5) default: graphical
 Compilers: gcc: 13.3.0 Client: Unknown python3.12 client inxi: 3.3.34

/code Thanks for help.

When inserting several larger images (JPEG, 1.4 MB, 1770x2440 px, 300 dpi) directly into the message body (i.e. not as an attachment), Thunderbird crashed and the draft of the written message was not saved.

Is there a limit to the maximum size or format of an image that can be inserted directly into the body of the message?

I am using THB release 140.6.0esr/32-bit

PC: Intel CPU OS: Windows 11 DNS: Google

Thunderbird repeatedly crashes and locks up the task bar. The now frozen PC has to be rebooted by manually powering down the machine. I am in the release channel and using the latest version.

When I am working from home, on my home network, and using a VPN, (Windows 11) whenever I receive new messages, the app becomes completely frozen. That is, if the app is in the background and I receive an email "bing bong" notification, I can go to the app, but I can not click on anything. Nothing responds. I cannot change tabs, select a message, move the window, or even use the close box to quit the application. I must force quit via the Windows tray icon. If I open the application and it immediately checks for messages and gets new messages, also I can not interact with any on-screen window or element. I must force quit. Then, after force quitting, I reopen again, and get no new messages, the previously new messages I can click on and read. So at no time can I get messages, and continue using the app. I also had a draft email in progress, and received new messages, and then the draft message was non interactive. When I tried to quit the app, I saw a popup message about saving the draft, but also could not click on it. This problem does not happen at work on my internal network and no VPN. Our email is all POP based (yes you read that right, all POP no IMAP), FWIW.

Hello -- I'm hoping someone will be able to help!

I'm running Thunderbird 140.9.1esr (32-bit) on Windows 10 Pro version 22H2 (OS Build 19045.6466) with an Intel Core i7 processor.

Thunderbird suddenly started crashing repeatedly since yesterday. It ran long enough for me to install version 140.9.1esr, but still crashes repeatedly within a couple minutes of running the application, even if I don't do anything such as trying to reply to a message.

Please see below what I get in the Windows Event Viewer, pretty much the same for each crash. I have also pasted the contents of the following file (the others mentioned above don't exist).

C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppHang_thunderbird.exe_5d8d3f9d863d0b28eacbd2a393cdc3d04ef559_c250478b_deffcb88-26f8-4204-bffd-7e6fd5a2ea88

I've gone to Troubleshooting Information, I've "cleared startup cache", I've tired "Troubleshoot Mode" and still Thunderbird crashes. There's nothing in Crash Reports.

Any help would be truly appreciated!

Best regards,

Miles Montelius

==========

The program thunderbird.exe version 140.9.1.0 stopped interacting with Windows and was closed. To see if more information about the problem is available, check the problem history in the Security and Maintenance control panel.

Process ID: 2fe4
Start Time: 01dcc9b06a74fe27
Termination Time: 19
Application Path: C:\Program Files (x86)\Mozilla Thunderbird\thunderbird.exe
Report Id: 1f27bed4-950e-4cf2-b2be-0e17b3c5bff0
Faulting package full name: 
Faulting package-relative application ID: 
Hang type: Unknown

===========

Fault bucket 2206417569010378635, type 5 Event Name: AppHangB1 Response: Not available Cab Id: 0

Problem signature: P1: thunderbird.exe P2: 140.9.1.0 P3: 69d0a82a P4: aa1e P5: 134217728 P6: P7: P8: P9: P10:

Attached files: \\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER1ECA.tmp.WERInternalMetadata.xml \\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER1EDB.tmp.xml \\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER1EE9.tmp.csv \\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER1F19.tmp.txt \\?\C:\Users\Miles\AppData\Local\Temp\WER2554.tmp.appcompat.txt

These files may be available here: \\?\C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppHang_thunderbird.exe_5d8d3f9d863d0b28eacbd2a393cdc3d04ef559_c250478b_deffcb88-26f8-4204-bffd-7e6fd5a2ea88

Analysis symbol: Rechecking for solution: 0 Report Id: 1f27bed4-950e-4cf2-b2be-0e17b3c5bff0 Report Status: 268435456 Hashed bucket: 6bb25f0f2ae99d39de9ec516c30b678b Cab Guid: 0

================================= Report.wer

Version=1 EventType=AppHangB1 EventTime=134203853995104936 ReportType=3 Consent=1 UploadTime=134203854012764044 ReportStatus=268435456 ReportIdentifier=deffcb88-26f8-4204-bffd-7e6fd5a2ea88 IntegratorReportIdentifier=1f27bed4-950e-4cf2-b2be-0e17b3c5bff0 Wow64Host=34404 Wow64Guest=332 NsAppName=thunderbird.exe OriginalFilename=thunderbird.exe AppSessionGuid=00002fe4-0001-0089-27fe-746ab0c9dc01 TargetAppId=W:00069140475b22fa6eb7e8a09288ccaa9eed00000000!0000296d4ceec558ce2477919ca1d55d16c4eb0ece48!thunderbird.exe TargetAppVer=2026//04//04:05:56:58!6df25!thunderbird.exe BootId=4294967295 TargetAsId=1039 IsFatal=1 EtwNonCollectReason=1 Response.BucketId=6bb25f0f2ae99d39de9ec516c30b678b Response.BucketTable=5 Response.LegacyBucketId=2206417569010378635 Response.type=4 Sig[0].Name=Application Name Sig[0].Value=thunderbird.exe Sig[1].Name=Application Version Sig[1].Value=140.9.1.0 Sig[2].Name=Application Timestamp Sig[2].Value=69d0a82a Sig[3].Name=Hang Signature Sig[3].Value=aa1e Sig[4].Name=Hang Type Sig[4].Value=134217728 DynamicSig[1].Name=OS Version DynamicSig[1].Value=10.0.19045.2.0.0.256.48 DynamicSig[2].Name=Locale ID DynamicSig[2].Value=2057 DynamicSig[22].Name=Additional Hang Signature 1 DynamicSig[22].Value=aa1ee6b70f5730e6b2c3407f0286853a DynamicSig[23].Name=Additional Hang Signature 2 DynamicSig[23].Value=d531 DynamicSig[24].Name=Additional Hang Signature 3 DynamicSig[24].Value=d5313f546285bab3fbd31e098595851c DynamicSig[25].Name=Additional Hang Signature 4 DynamicSig[25].Value=aa1e DynamicSig[26].Name=Additional Hang Signature 5 DynamicSig[26].Value=aa1ee6b70f5730e6b2c3407f0286853a DynamicSig[27].Name=Additional Hang Signature 6 DynamicSig[27].Value=d531 DynamicSig[28].Name=Additional Hang Signature 7 DynamicSig[28].Value=d5313f546285bab3fbd31e098595851c UI[3]=Thunderbird is not responding UI[4]=If you close the program, you might lose information. UI[5]=Close the program UI[6]=Close the program UI[7]=Close the program LoadedModule[0]=C:\Program Files (x86)\Mozilla Thunderbird\thunderbird.exe LoadedModule[1]=C:\WINDOWS\SYSTEM32\ntdll.dll LoadedModule[2]=C:\WINDOWS\System32\KERNEL32.DLL LoadedModule[3]=C:\WINDOWS\System32\KERNELBASE.dll LoadedModule[4]=C:\WINDOWS\System32\USP10.dll LoadedModule[5]=C:\WINDOWS\System32\ADVAPI32.dll LoadedModule[6]=C:\Program Files (x86)\Mozilla Thunderbird\mozglue.dll LoadedModule[7]=C:\WINDOWS\System32\msvcrt.dll LoadedModule[8]=C:\WINDOWS\System32\sechost.dll LoadedModule[9]=C:\WINDOWS\System32\RPCRT4.dll LoadedModule[10]=C:\WINDOWS\System32\bcrypt.dll LoadedModule[11]=C:\WINDOWS\System32\ucrtbase.dll LoadedModule[12]=C:\Program Files (x86)\Mozilla Thunderbird\VCRUNTIME140.dll LoadedModule[13]=C:\WINDOWS\System32\CRYPT32.dll LoadedModule[14]=C:\Program Files (x86)\Mozilla Thunderbird\MSVCP140.dll LoadedModule[15]=C:\WINDOWS\System32\GDI32.DLL LoadedModule[16]=C:\WINDOWS\SYSTEM32\CRYPTBASE.dll LoadedModule[17]=C:\WINDOWS\System32\win32u.dll LoadedModule[18]=C:\WINDOWS\System32\gdi32full.dll LoadedModule[19]=C:\WINDOWS\System32\msvcp_win.dll LoadedModule[20]=C:\WINDOWS\System32\USER32.dll LoadedModule[21]=C:\WINDOWS\System32\IMM32.DLL LoadedModule[22]=C:\WINDOWS\System32\bcryptPrimitives.dll LoadedModule[23]=C:\Program Files (x86)\Mozilla Thunderbird\nss3.dll LoadedModule[24]=C:\WINDOWS\SYSTEM32\WSOCK32.dll LoadedModule[25]=C:\WINDOWS\System32\WS2_32.dll LoadedModule[26]=C:\Program Files (x86)\Mozilla Thunderbird\gkcodecs.dll LoadedModule[27]=C:\Program Files (x86)\Mozilla Thunderbird\lgpllibs.dll LoadedModule[28]=C:\Program Files (x86)\Mozilla Thunderbird\xul.dll LoadedModule[29]=C:\WINDOWS\System32\shcore.dll LoadedModule[30]=C:\WINDOWS\System32\combase.dll LoadedModule[31]=C:\WINDOWS\System32\WINTRUST.dll LoadedModule[32]=C:\WINDOWS\SYSTEM32\ktmw32.dll LoadedModule[33]=C:\WINDOWS\SYSTEM32\VERSION.dll LoadedModule[34]=C:\WINDOWS\SYSTEM32\PROPSYS.dll LoadedModule[35]=C:\WINDOWS\SYSTEM32\ncrypt.dll LoadedModule[36]=C:\WINDOWS\System32\MSASN1.dll LoadedModule[37]=C:\WINDOWS\SYSTEM32\NTASN1.dll LoadedModule[38]=C:\WINDOWS\SYSTEM32\ntmarta.dll LoadedModule[39]=C:\WINDOWS\SYSTEM32\kernel.appcore.dll LoadedModule[40]=C:\WINDOWS\system32\uxtheme.dll LoadedModule[41]=C:\WINDOWS\System32\OLEAUT32.dll LoadedModule[42]=C:\WINDOWS\System32\psapi.dll LoadedModule[43]=C:\WINDOWS\SYSTEM32\dwrite.dll LoadedModule[44]=C:\WINDOWS\SYSTEM32\dbghelp.dll LoadedModule[45]=C:\WINDOWS\SYSTEM32\dbgcore.DLL LoadedModule[46]=C:\WINDOWS\System32\SHELL32.dll LoadedModule[47]=C:\WINDOWS\System32\windows.storage.dll LoadedModule[48]=C:\WINDOWS\System32\Wldp.dll LoadedModule[49]=C:\WINDOWS\System32\shlwapi.dll LoadedModule[50]=C:\WINDOWS\System32\ole32.dll LoadedModule[51]=C:\WINDOWS\SYSTEM32\profapi.dll LoadedModule[52]=C:\WINDOWS\SYSTEM32\WINMM.dll LoadedModule[53]=C:\WINDOWS\System32\clbcatq.dll LoadedModule[54]=C:\WINDOWS\system32\napinsp.dll LoadedModule[55]=C:\WINDOWS\system32\pnrpnsp.dll LoadedModule[56]=C:\Windows\System32\Windows.UI.dll LoadedModule[57]=C:\Windows\System32\WindowManagementAPI.dll LoadedModule[58]=C:\Windows\System32\InputHost.dll LoadedModule[59]=C:\Windows\System32\TextInputFramework.dll LoadedModule[60]=C:\WINDOWS\SYSTEM32\wintypes.dll LoadedModule[61]=C:\WINDOWS\SYSTEM32\twinapi.appcore.dll LoadedModule[62]=C:\Windows\System32\CoreMessaging.dll LoadedModule[63]=C:\Windows\System32\CoreUIComponents.dll LoadedModule[64]=C:\WINDOWS\system32\wshbth.dll LoadedModule[65]=C:\WINDOWS\System32\netprofm.dll LoadedModule[66]=C:\WINDOWS\system32\NLAapi.dll LoadedModule[67]=C:\WINDOWS\SYSTEM32\IPHLPAPI.DLL LoadedModule[68]=C:\WINDOWS\System32\mswsock.dll LoadedModule[69]=C:\WINDOWS\SYSTEM32\DNSAPI.dll LoadedModule[70]=C:\WINDOWS\System32\NSI.dll LoadedModule[71]=C:\WINDOWS\System32\winrnr.dll LoadedModule[72]=C:\Windows\System32\Windows.UI.Immersive.dll LoadedModule[73]=C:\WINDOWS\System32\npmproxy.dll LoadedModule[74]=C:\WINDOWS\SYSTEM32\WINNSI.DLL LoadedModule[75]=C:\WINDOWS\SYSTEM32\dhcpcsvc6.DLL LoadedModule[76]=C:\WINDOWS\SYSTEM32\dhcpcsvc.DLL LoadedModule[77]=C:\Program Files (x86)\Mozilla Thunderbird\softokn3.dll LoadedModule[78]=C:\Program Files (x86)\Mozilla Thunderbird\freebl3.dll LoadedModule[79]=C:\WINDOWS\System32\MSCTF.dll LoadedModule[80]=C:\WINDOWS\System32\MMDevApi.dll LoadedModule[81]=C:\WINDOWS\System32\DEVOBJ.dll LoadedModule[82]=C:\WINDOWS\System32\cfgmgr32.dll LoadedModule[83]=C:\WINDOWS\SYSTEM32\AUDIOSES.DLL LoadedModule[84]=C:\WINDOWS\SYSTEM32\powrprof.dll LoadedModule[85]=C:\WINDOWS\SYSTEM32\UMPDC.dll LoadedModule[86]=C:\WINDOWS\System32\SETUPAPI.dll LoadedModule[87]=C:\Windows\System32\wscapi.dll LoadedModule[88]=C:\WINDOWS\System32\urlmon.dll LoadedModule[89]=C:\WINDOWS\System32\iertutil.dll LoadedModule[90]=C:\WINDOWS\System32\srvcli.dll LoadedModule[91]=C:\WINDOWS\System32\netutils.dll LoadedModule[92]=C:\Windows\System32\Windows.Globalization.dll LoadedModule[93]=C:\Windows\System32\bcp47mrm.dll LoadedModule[94]=C:\Windows\System32\Bcp47Langs.dll LoadedModule[95]=C:\WINDOWS\SYSTEM32\dxgi.dll LoadedModule[96]=C:\WINDOWS\SYSTEM32\dwmapi.dll LoadedModule[97]=C:\WINDOWS\SYSTEM32\dcomp.dll LoadedModule[98]=C:\WINDOWS\SYSTEM32\mscms.dll LoadedModule[99]=C:\WINDOWS\SYSTEM32\ColorAdapterClient.dll LoadedModule[100]=C:\WINDOWS\SYSTEM32\USERENV.dll LoadedModule[101]=C:\WINDOWS\system32\twinapi.dll LoadedModule[102]=C:\WINDOWS\SYSTEM32\WTSAPI32.dll LoadedModule[103]=C:\WINDOWS\SYSTEM32\WINSTA.dll LoadedModule[104]=C:\WINDOWS\system32\directmanipulation.dll LoadedModule[105]=C:\WINDOWS\SYSTEM32\d2d1.dll LoadedModule[106]=C:\WINDOWS\SYSTEM32\XmlLite.dll LoadedModule[107]=C:\WINDOWS\system32\dataexchange.dll LoadedModule[108]=C:\WINDOWS\system32\d3d11.dll LoadedModule[109]=C:\WINDOWS\system32\explorerframe.dll LoadedModule[110]=C:\Windows\System32\OneCoreUAPCommonProxyStub.dll LoadedModule[111]=C:\Program Files (x86)\Mozilla Thunderbird\rnp.dll LoadedModule[112]=C:\WINDOWS\System32\WININET.dll LoadedModule[113]=C:\WINDOWS\SYSTEM32\SspiCli.dll LoadedModule[114]=C:\WINDOWS\SYSTEM32\ondemandconnroutehelper.dll LoadedModule[115]=C:\WINDOWS\SYSTEM32\winhttp.dll LoadedModule[116]=C:\Windows\System32\rasadhlp.dll LoadedModule[117]=C:\WINDOWS\System32\fwpuclnt.dll LoadedModule[118]=C:\WINDOWS\SYSTEM32\avrt.dll LoadedModule[119]=C:\Windows\System32\Windows.Security.Integrity.dll LoadedModule[120]=C:\WINDOWS\SYSTEM32\LINKINFO.dll LoadedModule[121]=C:\Windows\System32\OneCoreCommonProxyStub.dll LoadedModule[122]=C:\WINDOWS\SYSTEM32\ntshrui.dll LoadedModule[123]=C:\WINDOWS\SYSTEM32\cscapi.dll LoadedModule[124]=C:\WINDOWS\SYSTEM32\policymanager.dll LoadedModule[125]=C:\WINDOWS\SYSTEM32\msvcp110_win.dll LoadedModule[126]=C:\WINDOWS\SYSTEM32\d3dcompiler_47.dll LoadedModule[127]=C:\WINDOWS\SYSTEM32\CRYPTSP.dll LoadedModule[128]=C:\Program Files (x86)\Mozilla Thunderbird\libGLESv2.dll LoadedModule[129]=C:\WINDOWS\SYSTEM32\d3d9.dll LoadedModule[130]=C:\Program Files (x86)\Mozilla Thunderbird\libEGL.dll LoadedModule[131]=C:\WINDOWS\SYSTEM32\cryptnet.dll LoadedModule[132]=C:\WINDOWS\SYSTEM32\drvstore.dll LoadedModule[133]=C:\WINDOWS\System32\imagehlp.dll LoadedModule[134]=C:\WINDOWS\system32\rsaenh.dll LoadedModule[135]=C:\WINDOWS\SYSTEM32\dxcore.dll LoadedModule[136]=C:\WINDOWS\SYSTEM32\resourcepolicyclient.dll State[0].Key=Transport.DoneStage1 State[0].Value=1 OsInfo[0].Key=vermaj OsInfo[0].Value=10 OsInfo[1].Key=vermin OsInfo[1].Value=0 OsInfo[2].Key=verbld OsInfo[2].Value=19045 OsInfo[3].Key=ubr OsInfo[3].Value=6466 OsInfo[4].Key=versp OsInfo[4].Value=0 OsInfo[5].Key=arch OsInfo[5].Value=9 OsInfo[6].Key=lcid OsInfo[6].Value=2057 OsInfo[7].Key=geoid OsInfo[7].Value=242 OsInfo[8].Key=sku OsInfo[8].Value=48 OsInfo[9].Key=domain OsInfo[9].Value=0 OsInfo[10].Key=prodsuite OsInfo[10].Value=256 OsInfo[11].Key=ntprodtype OsInfo[11].Value=1 OsInfo[12].Key=platid OsInfo[12].Value=10 OsInfo[13].Key=sr OsInfo[13].Value=0 OsInfo[14].Key=tmsi OsInfo[14].Value=223670134 OsInfo[15].Key=osinsty OsInfo[15].Value=1 OsInfo[16].Key=iever OsInfo[16].Value=11.3636.19041.0-11.0.1000 OsInfo[17].Key=portos OsInfo[17].Value=0 OsInfo[18].Key=ram OsInfo[18].Value=8174 OsInfo[19].Key=svolsz OsInfo[19].Value=231 OsInfo[20].Key=wimbt OsInfo[20].Value=0 OsInfo[21].Key=blddt OsInfo[21].Value=191206 OsInfo[22].Key=bldtm OsInfo[22].Value=1406 OsInfo[23].Key=bldbrch OsInfo[23].Value=vb_release OsInfo[24].Key=bldchk OsInfo[24].Value=0 OsInfo[25].Key=wpvermaj OsInfo[25].Value=0 OsInfo[26].Key=wpvermin OsInfo[26].Value=0 OsInfo[27].Key=wpbuildmaj OsInfo[27].Value=0 OsInfo[28].Key=wpbuildmin OsInfo[28].Value=0 OsInfo[29].Key=osver OsInfo[29].Value=10.0.19041.6466.amd64fre.vb_release.191206-1406 OsInfo[30].Key=buildflightid OsInfo[30].Value=1a6da8dc-e1ef-4c46-89e4-4a56762ca494 OsInfo[31].Key=edition OsInfo[31].Value=Professional OsInfo[32].Key=ring OsInfo[33].Key=expid OsInfo[34].Key=fconid OsInfo[35].Key=containerid OsInfo[36].Key=containertype OsInfo[37].Key=edu OsInfo[37].Value=0 FriendlyEventName=Stopped responding and was closed ConsentKey=AppHangXProcB1 AppName=Thunderbird AppPath=C:\Program Files (x86)\Mozilla Thunderbird\thunderbird.exe ReportDescription=A problem caused this program to stop interacting with Windows. NsPartner=windows NsGroup=windows8 ApplicationIdentity=BD651D92C43397BE7A26BAF48837601A MetadataHash=-60511867

Once I try to add a new email account and have entered the necessary data, I get the ad that the account will be created. However, the program simply hangs up and remains in that display.

Hi Support, The last Thunderbird Version crash on Mac OS Sequoia 15.7.3 Mac Apple M2 Pro, 16 Gocot RAM The crash occurs after login to install a utility. => Therefore, I cant't use Thunderbird (I am a small Thunderbird doner). NB: I cant't find the command for starting Thunderbird in maintenance mode. Thanks for help

I was using TB like normally on windows 11 when it crashed. Now every time i try to open the app it prompts me to send in a crash report, but every time i press "restart thunderbird" a new window with crash report shows up. I have tried writing a comment, checking and unchecking all the boxes and pressing quit thunderbird. But i still get sent into the loop.

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

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

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?

After successfully downloading Thunderbird several times (my browser is Firefox), the only functioning option provided is to make a donation. That is, it's telling me I must make at least a $5 donation in order to proceed to setting up a Thunderbird account. This despite clear statements on the website that donations are not required in order to use Thunderbird. There is no way to skip this step.

After closing the donate window, I'm taken to a nearly-blank screen with absolutely no functioning features on it other than a link that leads to multiple, useless articles about who knows what.

Please fix the site and advise how to proceed without further roadblocks.

I have followed all the other recommendations with, no luck. I am on Windows 11 and use Eset virus software. Thunderbird is not listed as running it Task Manager, and there is no Profile.lock (think that was what it was called) in the profile directory, and I have deleted the existing profiles and recreated it. I have uninstalled and reinstall Thunderbird, and I have rebooted my computer. I am frustrated and concerned I will loose saved emails and my address book! Help.