Thunderbird isn't displaying the server login window and then shows "not responding"

Please post your Troubleshooting Information. At the top right of the Thunderbird window, click the menu button ≡, then select Help > Troubleshooting Information. Press the "Copy text to clipboard button" and paste the information into your reply.

I can get to the point of selecting Help before it no longer responds and the not responding message shows up.

In my wanderings through directories I ran into what looked like a thunderbird crash file, lots of them, but I am not sure where those are located now.

Try to start Thunderbird in troubleshooting mode. https://support.mozilla.org/kb/troubleshoot-mode-thunderbird

I found some of the reports and am copying the information minus the large hex data sections and some of the windows files that were loaded::: Version=1 EventType=AppHangB1 EventTime=134367314005035603 ReportType=3 Consent=1 UploadTime=134367314169224698 ReportStatus=268435456 ReportIdentifier=70c73084-2cf1-465a-8b82-aa805c338193

Wow64Host=34404 NsAppName=thunderbird.exe OriginalFilename=thunderbird.exe AppSessionGuid=0000abc4-0001-0073-5640-32255c5edd01 TargetAppId=W:0000b3e9e71168884a54a2f66764545ae83d0000ffff!00004d47cf3159c8833202e651e1cda1ee6bcfda743f!thunderbird.exe TargetAppVer=2026//10//08:01:57:25!93ce8!thunderbird.exe BootId=4294967295 TargetAsId=10490 UserImpactVector=269484304 IsFatal=1 EtwNonCollectReason=1 Response.BucketId=cec9b1d6a9be4b8069c7ff4ff1c4b2f2 Response.BucketTable=5 Response.LegacyBucketId=1857734090137318130 Response.type=4 Sig[0].Name=Application Name Sig[0].Value=thunderbird.exe Sig[1].Name=Application Version Sig[1].Value=158.0.0.0 Sig[2].Name=Application Timestamp Sig[2].Value=6ac6f885 Sig[3].Name=Hang Signature Sig[3].Value=6574 Sig[4].Name=Hang Type Sig[4].Value=134217728 DynamicSig[1].Name=OS Version DynamicSig[1].Value=10.0.26200.2.0.0.256.48 DynamicSig[2].Name=Locale ID DynamicSig[2].Value=1033 DynamicSig[22].Name=Additional Hang Signature 1 DynamicSig[22].Value=657460176292c506ad08a95af6361971 DynamicSig[23].Name=Additional Hang Signature 2 DynamicSig[23].Value=057a DynamicSig[24].Name=Additional Hang Signature 3 DynamicSig[24].Value=057a1c1c3e3fb2038b5a409e49e3e76c DynamicSig[25].Name=Additional Hang Signature 4 DynamicSig[25].Value=6574 DynamicSig[26].Name=Additional Hang Signature 5 DynamicSig[26].Value=657460176292c506ad08a95af6361971 DynamicSig[27].Name=Additional Hang Signature 6 DynamicSig[27].Value=057a DynamicSig[28].Name=Additional Hang Signature 7 DynamicSig[28].Value=057a1c1c3e3fb2038b5a409e49e3e76c 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[19]=C:\Program Files (x86)\Mozilla Thunderbird\VCRUNTIME140.dll LoadedModule[20]=C:\Program Files (x86)\Mozilla Thunderbird\VCRUNTIME140_1.dll LoadedModule[21]=C:\Program Files (x86)\Mozilla Thunderbird\MSVCP140.dll LoadedModule[22]=C:\WINDOWS\System32\IMM32.DLL LoadedModule[23]=C:\WINDOWS\System32\bcryptprimitives.dll LoadedModule[24]=C:\WINDOWS\SYSTEM32\cryptbase.dll LoadedModule[25]=C:\Program Files (x86)\Mozilla Thunderbird\nss3.dll LoadedModule[26]=C:\WINDOWS\System32\WS2_32.dll LoadedModule[27]=C:\WINDOWS\SYSTEM32\WSOCK32.dll LoadedModule[28]=C:\Program Files (x86)\Mozilla Thunderbird\gkcodecs.dll LoadedModule[29]=C:\Program Files (x86)\Mozilla Thunderbird\lgpllibs.dll LoadedModule[30]=C:\Program Files (x86)\Mozilla Thunderbird\xul.dll LoadedModule[31]=C:\WINDOWS\System32\shcore.dll LoadedModule[32]=C:\WINDOWS\SYSTEM32\dbghelp.dll

LoadedModule[37]=C:\WINDOWS\SYSTEM32\PROPSYS.dll LoadedModule[38]=C:\WINDOWS\SYSTEM32\VERSION.dll LoadedModule[39]=C:\WINDOWS\SYSTEM32\ntmarta.dll LoadedModule[40]=C:\WINDOWS\SYSTEM32\kernel.appcore.dll LoadedModule[41]=C:\WINDOWS\system32\uxtheme.dll LoadedModule[42]=C:\WINDOWS\SYSTEM32\dwrite.dll LoadedModule[43]=C:\WINDOWS\System32\psapi.dll LoadedModule[44]=C:\WINDOWS\SYSTEM32\verifier.dll LoadedModule[45]=C:\WINDOWS\SYSTEM32\dbgcore.DLL LoadedModule[46]=C:\WINDOWS\SYSTEM32\windows.storage.dll LoadedModule[47]=C:\WINDOWS\System32\ole32.dll LoadedModule[48]=C:\WINDOWS\SYSTEM32\profapi.dll LoadedModule[49]=C:\WINDOWS\SYSTEM32\WINMM.dll LoadedModule[50]=C:\WINDOWS\System32\clbcatq.dll LoadedModule[51]=C:\WINDOWS\system32\napinsp.dll LoadedModule[52]=C:\Windows\System32\Windows.UI.dll LoadedModule[53]=C:\WINDOWS\System32\mswsock.dll LoadedModule[54]=C:\WINDOWS\System32\netprofm.dll LoadedModule[55]=C:\WINDOWS\SYSTEM32\DNSAPI.dll LoadedModule[56]=C:\WINDOWS\SYSTEM32\DSPARSE.dll LoadedModule[57]=C:\WINDOWS\SYSTEM32\IPHLPAPI.DLL LoadedModule[58]=C:\WINDOWS\System32\NSI.dll LoadedModule[59]=C:\WINDOWS\System32\winrnr.dll LoadedModule[60]=C:\WINDOWS\system32\nlansp_c.dll LoadedModule[61]=C:\Windows\System32\Windows.UI.Immersive.dll LoadedModule[62]=C:\WINDOWS\system32\wshbth.dll LoadedModule[63]=C:\WINDOWS\System32\npmproxy.dll LoadedModule[64]=C:\Windows\System32\twinapi.appcore.dll LoadedModule[65]=C:\Windows\System32\WinTypes.dll LoadedModule[66]=C:\WINDOWS\SYSTEM32\WINNSI.DLL LoadedModule[67]=C:\Windows\System32\Windows.Security.Integrity.dll LoadedModule[68]=C:\WINDOWS\SYSTEM32\dhcpcsvc6.DLL LoadedModule[69]=C:\WINDOWS\SYSTEM32\dhcpcsvc.DLL LoadedModule[70]=C:\Program Files (x86)\Mozilla Thunderbird\softokn3.dll LoadedModule[71]=C:\Program Files (x86)\Mozilla Thunderbird\freebl3.dll LoadedModule[72]=C:\WINDOWS\System32\CRYPT32.dll LoadedModule[73]=C:\WINDOWS\SYSTEM32\MSASN1.dll LoadedModule[74]=C:\WINDOWS\System32\MSCTF.dll LoadedModule[75]=C:\WINDOWS\System32\SETUPAPI.dll LoadedModule[76]=C:\WINDOWS\SYSTEM32\DEVOBJ.dll LoadedModule[77]=C:\WINDOWS\System32\WINTRUST.dll LoadedModule[78]=C:\WINDOWS\SYSTEM32\dxcore.dll LoadedModule[79]=C:\Windows\System32\wscapi.dll LoadedModule[80]=C:\Windows\System32\Windows.Globalization.dll LoadedModule[81]=C:\Windows\System32\Bcp47Langs.dll LoadedModule[82]=C:\WINDOWS\SYSTEM32\dxgi.dll LoadedModule[83]=C:\WINDOWS\SYSTEM32\powrprof.dll LoadedModule[84]=C:\WINDOWS\SYSTEM32\UMPDC.dll LoadedModule[85]=C:\WINDOWS\SYSTEM32\directxdatabasehelper.dll LoadedModule[86]=C:\WINDOWS\SYSTEM32\dwmapi.dll LoadedModule[87]=C:\WINDOWS\SYSTEM32\dcomp.dll LoadedModule[88]=C:\WINDOWS\SYSTEM32\Microsoft.Internal.WarpPal.dll LoadedModule[89]=C:\WINDOWS\SYSTEM32\mscms.dll LoadedModule[90]=C:\WINDOWS\system32\twinapi.dll LoadedModule[91]=C:\Program Files (x86)\Mozilla Thunderbird\Microsoft.Internal.FrameworkUdk.dll LoadedModule[92]=C:\WINDOWS\SYSTEM32\CoreMessaging.dll LoadedModule[93]=C:\WINDOWS\SYSTEM32\Microsoft.Internal.FrameworkUdk.System.dll LoadedModule[94]=C:\Program Files (x86)\Mozilla Thunderbird\Microsoft.UI.Windowing.dll LoadedModule[95]=C:\Program Files (x86)\Mozilla Thunderbird\Microsoft.UI.Windowing.Core.dll LoadedModule[96]=C:\Program Files (x86)\Mozilla Thunderbird\CoreMessagingXP.dll LoadedModule[97]=C:\WINDOWS\SYSTEM32\WTSAPI32.dll LoadedModule[98]=C:\WINDOWS\SYSTEM32\SspiCli.dll LoadedModule[99]=C:\WINDOWS\SYSTEM32\WINSTA.dll LoadedModule[100]=C:\WINDOWS\system32\directmanipulation.dll LoadedModule[101]=C:\WINDOWS\System32\MMDevApi.dll LoadedModule[102]=C:\WINDOWS\SYSTEM32\AUDIOSES.DLL LoadedModule[103]=C:\WINDOWS\system32\dataexchange.dll LoadedModule[104]=C:\WINDOWS\SYSTEM32\textinputframework.dll LoadedModule[105]=C:\WINDOWS\system32\explorerframe.dll LoadedModule[106]=C:\Windows\System32\OneCoreUAPCommonProxyStub.dll LoadedModule[107]=C:\Program Files (x86)\Mozilla Thunderbird\rnp.dll LoadedModule[108]=C:\WINDOWS\SYSTEM32\WININET.dll LoadedModule[109]=C:\WINDOWS\SYSTEM32\iertutil.dll LoadedModule[110]=C:\WINDOWS\SYSTEM32\srvcli.dll LoadedModule[111]=C:\WINDOWS\SYSTEM32\netutils.dll LoadedModule[112]=C:\WINDOWS\SYSTEM32\ondemandconnroutehelper.dll LoadedModule[113]=C:\WINDOWS\SYSTEM32\WINHTTP.dll LoadedModule[114]=C:\WINDOWS\System32\fwpuclnt.dll LoadedModule[115]=C:\Windows\System32\rasadhlp.dll LoadedModule[116]=C:\WINDOWS\SYSTEM32\avrt.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=26200 OsInfo[3].Key=ubr OsInfo[3].Value=9711 OsInfo[4].Key=versp OsInfo[4].Value=0 OsInfo[5].Key=arch OsInfo[5].Value=9 OsInfo[6].Key=lcid OsInfo[6].Value=1033 OsInfo[7].Key=geoid OsInfo[7].Value=244 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=223942537 OsInfo[15].Key=osinsty OsInfo[15].Value=3 OsInfo[16].Key=iever OsInfo[16].Value=11.1882.26100.0-11.0.1000 OsInfo[17].Key=portos OsInfo[17].Value=0 OsInfo[18].Key=ram OsInfo[18].Value=31897 OsInfo[19].Key=svolsz OsInfo[19].Value=466 OsInfo[20].Key=wimbt OsInfo[20].Value=0 OsInfo[21].Key=blddt OsInfo[21].Value=240331 OsInfo[22].Key=bldtm OsInfo[22].Value=1435 OsInfo[23].Key=bldbrch OsInfo[23].Value=ge_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=10.0.26100.9711.amd64fre.ge_release.240331-1435 OsInfo[30].Key=buildflightid OsInfo[30].Value=DB640DB1-D7B0-4D44-8BBC-B930AB72865A.1 OsInfo[31].Key=edition OsInfo[31].Value=Professional OsInfo[32].Key=ring OsInfo[32].Value=Retail OsInfo[33].Key=flightbranch OsInfo[34].Key=expid

OsInfo[36].Key=containerid OsInfo[37].Key=containertype OsInfo[38].Key=edu OsInfo[38].Value=0 OsInfo[39].Key=servicinginprogress OsInfo[39].Value=0 OsInfo[40].Key=featureupdatependingreboot OsInfo[40].Value=0 OsInfo[41].Key=recoveryenvironment OsInfo[41].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=F9E1F2D8B8F1B2D4661FA8EA5A7F01ED MetadataHash=1024063064

This doesn't help. Try troubleshooting mode.

Nothing that I have tried in troubleshooting mode has given any different results. It still shows "Not Responding". I tried booting up in Safe Mode and the results are still the same.j Looking in the Thunderbird pending and submitted crash data shows no files added since March. Are there any options in the Troubleshooting window besides the obvious ones?