Thunderbird Community Forum

Is it possible to somehow incorporate a virus/trojan checker into the software that is open source for Windows? I keep getting TONS of alerts from Mcafee that it caught viruses. Also wondering if this could be a addition to Thunderbird in a new release by incorporating something like CLAMAV into thunderbird software somehow?

All old cmptr usb ports fail.. copied most data to new computer but Moz. Thndrbrd did not copy. Installed NEW Tndrbrd and got mail, but only last 4 weeks or so since failure. Copied ALL Moz. Thndrbrd files from old to Thumb drive. Old system had 70 files, 10 folders (11*.exe, 31 *dll, 4*ini, 297MB) and 5 single element files. New Thnddrbrd has 72 files, 12 folders, 55.7MB. Could find NO hidden files / folders on either unit. Suspect all recoverable OLD mail on thumb drive but do not know how to recover. H E L P ! ! Mitch ~ " X@mcsnet.ca " VERSION 148.0.1 BUILD ID 20260305172141

(PII redacted by moderator)

Just installed Thunderbird on Windows 11. Have two accounts: UN1@hotmail.co.jp and UN2@hotmail.co.jp. I created them in exactly the same way, but one of them works without problem, the other shows me "Command Error 12". After searching for a solution on the forum, I understand that none of the suggestions work. The error repeats. What can it be and is there a way to fix this error?

This just started 4 or 5 days ago ( 2026.1.23 ish). I did not update TB nor make any changes to the account in question (that I'm aware of). The errors show up every few minutes, with a 'beep' sound and notification pop-up showing up each time - is very annoying.

I was running v145 when it started. I saw there was an update to 147 and installed that; same issue. I restarted TB into Troubleshooting mode and am still getting the error.

This is running on MacOS 15.7.3. Hardware is MacMini (2024) with Apple M4 chip.

Generally I still seem able to received & send emails.

I opened Activity Manager and Error Console. Error console doesn't seem to have much (using 'Multiprocess', with Errors, Warnings, Logs, Debug enabled). Activity manager shows things such as:

<my account name>

   Connection to server outlook.office365.com was interrupted.    09:49
   Failed to connect to server outlook.office365.com.    09:52
   Authentication failure while connecting to server outlook.office365.com.    09:58
   Authentication failure while connecting to server outlook.office365.com.    10:03
   Connection to server outlook.office365.com was interrupted.    10:10
   Connection to server outlook.office365.com was interrupted.    10:14
   Connection to server outlook.office365.com was interrupted.    10:20

There was an error or log entry that I was able to find a few days ago that made me think it was Calendar related, but now I'm not finding that message.

突然、どこにもメールの送信ができなくなってしまいました。 受信はできます。 KDDIを使っていますが、問い合わせしましたが、サーバーに問題ありません。 Webメールでは送信できます。 Thunderbird側の問題のようです。 添付のようなメッセージが表示されエラーになってしまいます。 解決策を教えてください。

Suddenly, I can no longer send emails anywhere. I can still receive emails. I use KDDI, and I contacted them, but they said there are no issues with their servers. I can send emails using webmail. It seems to be an issue with Thunderbird. The message shown in the attachment appears, and I get an error. Please let me know how to fix this.

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

How can I remove the time display from the date column in the messages. The Date and or Received Columns always add the time and therefore waste space as I want to change the column width.

I have tried using the Config Editor and changed the numbers offered, 1-2-3-4 to no avail. I am missing something.

Would like to see 10-26-2026' NOT 10-26-2026 4:13am '

I do not need to know the time value.

Thanks

I run TBD 140.8.0 esr (64 bit) under Debian 12 Linux. Until recently I could automatically enter a special address from the pertaining addressbook, this does not work anymore. helpfiles do not show a solution thus I am here.

The addressbook is full of addresses however I have to transfer a special address via past and copy into the addressfield of the mail I want to send.

Thanks for a quick answer Jörg Kampmann

I have no idea what to do now that I have downloaded Thunderbird email on my Surface 4. I can't find any directions anywhere on how to get started with it.! Outlook, while not secure, was certainly easy to set up and use.

Hello,

I am trying to copy all messages from Yahoo email to Thunderbird and after I sync or Get Messages in Thunderbird and then delete an email in Yahoo email, the email will also be deleted in Thunderbird.

Could you show me how where Thunderbird will not delete messages after I have already synced or Get Messages in Thunderbird?

Thank you, David