Thunderbird Community Forum

After a reboot and Windows 11 update today, Thunderbird (I believe it was v155) will not open. It asks for the password, then sits at [Not Responding].

I have copied my profiles (there are two, one dated 2023 with only a 1K .json file in it, and one created tonight while I was troubleshooting that's several GB and when copying, appears to contain all my mail folders although I can't access them directly from within the profile) to a separate location (my desktop).

I've tried the following (after checking previous questions here in Mozilla support):

(1) booting Windows into safe mode

(2) opening Thunderbird in Troubleshooting mode (Shift while opening), both in Windows safe mode and normal boot

(3) uninstalled Thunderbird from Control Panel, downloaded and installed a new copy of Thunderbird

All give the same result: "not responding", can't click anything. Can only wait or close.

I was able to disable an extension that I installed yesterday that had been working fine.

I'm also wondering if the problem is mail folders that are too large. I have some candidates for deletion but since I can't see any .msf files for them, I can't delete (because I can't open Thunderbird.

I'm leery of instructions to outright delete any Thunderbird folders/files because (1) I can't see my mail folders directly and (2) I'm self-employed and all my client and business emails are in there. Losing them woud be a disaster.

I'm tempted to try the Windows option of restoring my entire computer to an earlier point, say, this morning. But that seems like possible overkill if it's an issue with just Thunderbird.

I'm freaking out, please help!

When I close down the non-functional thunderbird basic frame, it says it is reporting the problem to Microsoft. I never know if/when the mail is going to work. No useful information on what to do to fix. - Dwight

Mozilla Thunderbird stopped responding, tried to shut down, restart, uninstall and install - nothing helps Still opens the window, but no messages white backgoround and (Not Responding)

I run Thunderbird on MacOS for some years without a problem. Now, after a hard reboot, Thunderbird won't launch anymore. I tried reinstalling to no avail. Is there anything I could do here? Or do you need any more info? The crash report is as follows:

Translated Report (Full Report Below)

Process: thunderbird [8297] Path: /Applications/Thunderbird.app/Contents/MacOS/thunderbird Identifier: org.mozilla.thunderbird Version: 155.0 (15526.8.28) Code Type: X86-64 (Native) Parent Process: launchd [1] User ID: 501

Date/Time: 2026-09-09 13:49:46.3562 +0200 OS Version: macOS 15.0.1 (24A348) Report Version: 12 Anonymous UUID: A83FED70-635C-4178-5B0E-2FB36A313750

Sleep/Wake UUID: 9CEF8430-EEF8-43BB-AC16-8A9FF7407F51

Time Awake Since Boot: 25000 seconds Time Since Wake: 7284 seconds

System Integrity Protection: enabled

Crashed Thread: 0 MainThread Dispatch queue: com.apple.main-thread

Exception Type: EXC_GUARD (SIGKILL) Exception Codes: GUARD_TYPE_MACH_PORT Exception Codes: 0x0000000000000203, 0x0000000000000000

Termination Reason: Namespace GUARD, Code 2305843146652647939

Thread 0 Crashed:: MainThread Dispatch queue: com.apple.main-thread 0 libsystem_kernel.dylib 0x7ff815680e0e mach_msg2_trap + 10 1 libsystem_kernel.dylib 0x7ff81568f622 mach_msg2_internal + 84 2 libsystem_kernel.dylib 0x7ff815687f16 mach_msg_overwrite + 649 3 libsystem_kernel.dylib 0x7ff8156810ff mach_msg + 19 4 XUL 0x2f9aca7f4 0x2f35dd000 + 105830388 5 XUL 0x2f9ac4183 0x2f35dd000 + 105804163 6 XUL 0x2f9ac2884 0x2f35dd000 + 105797764 7 XUL 0x2f865b45b 0x2f35dd000 + 84403291 8 XUL 0x2f8685615 0x2f35dd000 + 84575765 9 XUL 0x2f868d2af 0x2f35dd000 + 84607663 10 XUL 0x2f868d80f 0x2f35dd000 + 84609039 11 thunderbird 0x10d03ab2a 0x10d03a000 + 2858 12 dyld 0x7ff8153342cd start + 1805

Thread 1:: AsyncSignalControlThread 0 libsystem_kernel.dylib 0x7ff81568187a read + 10 1 XUL 0x2f825612a 0x2f35dd000 + 80187690 2 XUL 0x2f82560dd 0x2f35dd000 + 80187613 3 libsystem_pthread.dylib 0x7ff8156c2253 _pthread_start + 99 4 libsystem_pthread.dylib 0x7ff8156bdbef thread_start + 15

Thread 2:: RegisterFonts 0 CoreFoundation 0x7ff81573a759 CFStringGetCharacters + 98 1 CoreFoundation 0x7ff815803d71 CFURLCreateFilePathURL + 1086 2 libFontRegistry.dylib 0x7ff81e9c2201 TLocalFontRegistryImp::RegisterFont(__CFURL const*, __CFDictionary const*, unsigned int, unsigned int, __CFError**) const + 459 3 libFontRegistry.dylib 0x7ff81e9c2c32 TLocalFontRegistryImp::RegisterFonts(__CFArray const*, __CFDictionary const*, unsigned int, unsigned int, __CFArray const**, __CFArray const**, __CFArray const**) const + 182 4 libFontRegistry.dylib 0x7ff81e9de0ff XTRegisterFonts2 + 701 5 CoreText 0x7ff817d6db29 _CTFontManagerRegisterActionFontsForURLs(__CFArray const*, CTFontManagerScope, bool, Action, __CFArray const**) + 339 6 CoreText 0x7ff817d6eef7 _CTFontManagerRegisterActionFontURLs(__CFArray const*, CTFontManagerScope, bool, Action, URLTrust, __CFArray const*, bool (__CFArray const*, bool) block_pointer) + 42 7 XUL 0x2f4b40609 0x2f35dd000 + 22427145 8 XUL 0x2f4b5deba 0x2f35dd000 + 22548154 9 libnss3.dylib 0x2da8bb369 0x2da709000 + 1778537 10 libsystem_pthread.dylib 0x7ff8156c2253 _pthread_start + 99 11 libsystem_pthread.dylib 0x7ff8156bdbef thread_start + 15

Thread 3: 0 libsystem_pthread.dylib 0x7ff8156bdbcc start_wqthread + 0

Thread 4: 0 libsystem_kernel.dylib 0x7ff815680e0e mach_msg2_trap + 10 1 libsystem_kernel.dylib 0x7ff81568f622 mach_msg2_internal + 84 2 libsystem_kernel.dylib 0x7ff815687f16 mach_msg_overwrite + 649 3 libsystem_kernel.dylib 0x7ff8156810ff mach_msg + 19 4 XUL 0x2f9aca16d 0x2f35dd000 + 105828717 5 XUL 0x2f9acaeac 0x2f35dd000 + 105832108 6 XUL 0x2f9acad91 0x2f35dd000 + 105831825 7 XUL 0x2fb206fa9 0x2f35dd000 + 130195369 8 libsystem_pthread.dylib 0x7ff8156c2253 _pthread_start + 99 9 libsystem_pthread.dylib 0x7ff8156bdbef thread_start + 15

Thread 5: 0 libsystem_pthread.dylib 0x7ff8156bdbcc start_wqthread + 0

Thread 0 crashed with X86 Thread State (64-bit):

 rax: 0x000000001000000a  rbx: 0x00000002db928340  rcx: 0x00007ff7b2ec4af8  rdx: 0x0000003480000013
 rdi: 0x00000002db928340  rsi: 0x0000000400000011  rbp: 0x00007ff7b2ec4b60  rsp: 0x00007ff7b2ec4af8
  r8: 0x0000000000000000   r9: 0x0000000000000001  r10: 0x0000000000002303  r11: 0x0000000000000206
 r12: 0x00000000000007d0  r13: 0x0000000400000011  r14: 0x0000000000000000  r15: 0x0000000000000001
 rip: 0x00007ff815680e0e  rfl: 0x0000000000000206  cr2: 0x0000000000000000
 

Logical CPU: 0 Error Code: 0x0100002f Trap Number: 133

Binary Images:

      0x10d03a000 -        0x10d042fff org.mozilla.thunderbird (155.0) <4c4c4439-5555-3144-a100-2f79b5ba51e1> /Applications/Thunderbird.app/Contents/MacOS/thunderbird
      0x10d168000 -        0x10d1dcfff libmozglue.dylib (*) <4c4c4442-5555-3144-a1b2-7d8d2d6587df> /Applications/Thunderbird.app/Contents/MacOS/libmozglue.dylib
      0x10d077000 -        0x10d083fff com.apple.CoreWiFi (1.0) <c356ba94-c112-3326-9011-74fc0bb4dfde> /System/Library/PrivateFrameworks/CoreWiFi.framework/Versions/A/CoreWiFi
      0x10d444000 -        0x10d5dffff CoreWiFiOld.dylib (*) <d5ce0007-36ac-37a1-a5d7-07ad7365e60a> /System/Library/PrivateFrameworks/CoreWiFi.framework/Versions/A/CoreWiFiOld.dylib
      0x10d056000 -        0x10d057fff com.apple.IO80211 (1.0) <c0791260-3db4-30e8-962c-1d7a90bbe2d5> /System/Library/PrivateFrameworks/IO80211.framework/Versions/A/IO80211
      0x10d061000 -        0x10d061fff com.apple.WiFiPeerToPeer (652.55.0) <6de18c87-b584-3fba-b9f2-5439ee94f3f7> /System/Library/PrivateFrameworks/WiFiPeerToPeer.framework/Versions/A/WiFiPeerToPeer
      0x17689e000 -        0x1768f1fff IO80211Old.dylib (*) <d5ce0007-f5f4-3ab8-a256-05df5202823b> /System/Library/PrivateFrameworks/IO80211.framework/Versions/A/IO80211Old.dylib
      0x1e640b000 -        0x1e6432fff WiFiPeerToPeerOld.dylib (*) <d5ce0007-9684-3a09-bf78-fb3a4f8bb7b1> /System/Library/PrivateFrameworks/WiFiPeerToPeer.framework/Versions/A/WiFiPeerToPeerOld.dylib
      0x2da709000 -        0x2da9d5fff libnss3.dylib (*) <4c4c449b-5555-3144-a1ce-153a9242e9fd> /Applications/Thunderbird.app/Contents/MacOS/libnss3.dylib
      0x2dbc97000 -        0x2dc767fff libgkcodecs.dylib (*) <4c4c4478-5555-3144-a176-a5710479f9c6> /Applications/Thunderbird.app/Contents/MacOS/libgkcodecs.dylib
      0x10d400000 -        0x10d423fff liblgpllibs.dylib (*) <4c4c44b4-5555-3144-a1b9-b5c664969bb6> /Applications/Thunderbird.app/Contents/MacOS/liblgpllibs.dylib
      0x10d06b000 -        0x10d06bfff com.apple.framework.CoreWLAN (16.0) <cf40012c-37ff-356e-863f-24c150978974> /System/Library/Frameworks/CoreWLAN.framework/Versions/A/CoreWLAN
      0x25d475000 -        0x25d4effff CoreWLANOld.dylib (*) <d5ce0007-0117-3ddb-beb8-5886a5f8b758> /System/Library/Frameworks/CoreWLAN.framework/Versions/A/CoreWLANOld.dylib
      0x2f35dd000 -        0x2fe8e2fff XUL (*) <4c4c44ee-5555-3144-a15b-7a3b6ab61736> /Applications/Thunderbird.app/Contents/MacOS/XUL
      0x10d42f000 -        0x10d430fff org.mozilla.channelprefs (1.0) <4c4c4410-5555-3144-a148-95c735c87f29> /Applications/Thunderbird.app/Contents/Frameworks/ChannelPrefs.framework/ChannelPrefs
   0x7ff815680000 -     0x7ff8156bbfff libsystem_kernel.dylib (*) <10094a6c-fa57-367f-b06e-7c449ea31285> /usr/lib/system/libsystem_kernel.dylib
   0x7ff81532e000 -     0x7ff8153ba32f dyld (*) <69c73748-37ae-3a6f-83af-690645c3da75> /usr/lib/dyld
              0x0 - 0xffffffffffffffff ??? (*) <00000000-0000-0000-0000-000000000000> ???
   0x7ff8156bc000 -     0x7ff8156c7fff libsystem_pthread.dylib (*) <c0db9cf9-86ec-31d4-a557-2c07945fd8f2> /usr/lib/system/libsystem_pthread.dylib
   0x7ff81572b000 -     0x7ff815bcaff2 com.apple.CoreFoundation (6.9) <541c6f06-0abc-39f5-a7d2-3cad5db19c04> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
   0x7ff81e9af000 -     0x7ff81e9faff7 libFontRegistry.dylib (*) <31b7fceb-b146-3e8d-a297-87c67730f388> /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ATS.framework/Versions/A/Resources/libFontRegistry.dylib
   0x7ff817c31000 -     0x7ff817e51ff5 com.apple.CoreText (841.0.0.1) <c3eb23cc-fc68-312e-bc9d-8e28a4a44da3> /System/Library/Frameworks/CoreText.framework/Versions/A/CoreText

External Modification Summary:

 Calls made by other processes targeting this process:
   task_for_pid: 0
   thread_create: 0
   thread_set_state: 0
 Calls made by this process:
   task_for_pid: 0
   thread_create: 0
   thread_set_state: 0
 Calls made by all processes on this machine:
   task_for_pid: 0
   thread_create: 0
   thread_set_state: 0

VM Region Summary: ReadOnly portion of Libraries: Total=1.3G resident=0K(0%) swapped_out_or_unallocated=1.3G(100%) Writable regions: Total=7.6G written=0K(0%) resident=0K(0%) swapped_out=0K(0%) unallocated=7.6G(100%)

                               VIRTUAL   REGION 

REGION TYPE SIZE COUNT (non-coalesced)

===== ======= =

Activity Tracing 256K 1 Kernel Alloc Once 8K 1 MALLOC 550.1M 21 MALLOC guard page 24K 6 STACK GUARD 56.0M 6 Stack 12.0M 6 VM_ALLOCATE 132.0M 18 VM_ALLOCATE (reserved) 7.1G 10 reserved VM address space (unallocated) __CTF 824 1 __DATA 30.4M 877 __DATA_CONST 95.2M 881 __DATA_DIRTY 2560K 333 __FONT_DATA 2352 1 __INFO_FILTER 8 1 __LINKEDIT 186.2M 17 __OBJC_RO 76.1M 1 __OBJC_RW 2354K 2 __TEXT 1.1G 902 __TPRO_CONST 272K 2 dsce.got 124K 1 dyld private memory 512K 2 mapped file 53.2M 51 owned unmapped memory 20K 1 shared memory 1124K 9

===== ======= =

TOTAL 9.4G 3151 TOTAL, minus reserved VM space 2.3G 3151

Full Report

{"app_name":"thunderbird","timestamp":"2026-09-09 13:49:48.00 +0200","app_version":"155.0","sroute_id":12,"slice_uuid":"4c4c4439-5555-3144-a100-2f79b5ba51e1","build_version":"15526.8.28","platform":1,"bundleID":"org.mozilla.thunderbird","share_with_app_devs":0,"is_first_party":0,"bug_type":"309","os_version":"macOS 15.0.1 (24A348)","roots_installed":0,"name":"thunderbird","incident_id":"D8368554-B699-4AD8-A8A6-2C4175E89A69"} {

 "uptime" : 25000,
 "procRole" : "Background",
 "version" : 2,
 "userID" : 501,
 "deployVersion" : 210,
 "modelCode" : "MacBookPro15,2",
 "coalitionID" : 1356,
 "osVersion" : {
   "train" : "macOS 15.0.1",
   "build" : "24A348",
   "releaseType" : "User"
 },
 "captureTime" : "2026-09-09 13:49:46.3562 +0200",
 "codeSigningMonitor" : 0,
 "incident" : "D8368554-B699-4AD8-A8A6-2C4175E89A69",
 "pid" : 8297,
 "cpuType" : "X86-64",
 "roots_installed" : 0,
 "bug_type" : "309",
 "procLaunch" : "2026-09-09 13:49:45.0052 +0200",
 "procStartAbsTime" : 25995372141555,
 "procExitAbsTime" : 25996722299153,
 "procName" : "thunderbird",
 "procPath" : "\/Applications\/Thunderbird.app\/Contents\/MacOS\/thunderbird",
 "bundleInfo" : {"CFBundleShortVersionString":"155.0","CFBundleVersion":"15526.8.28","CFBundleIdentifier":"org.mozilla.thunderbird"},
 "storeInfo" : {"deviceIdentifierForVendor":"1F778C59-C2BF-597B-B4D7-068A27420DA1","thirdParty":true},
 "parentProc" : "launchd",
 "parentPid" : 1,
 "coalitionName" : "org.mozilla.thunderbird",
 "crashReporterKey" : "A83FED70-635C-4178-5B0E-2FB36A313750",
 "codeSigningID" : "org.mozilla.thunderbird",
 "codeSigningTeamID" : "",
 "codeSigningFlags" : 570490881,
 "codeSigningValidationCategory" : 1,
 "codeSigningTrustLevel" : 4294967295,
 "bootSessionUUID" : "3B94A2DF-4DD0-4B72-9BCF-22A7621B9373",
 "wakeTime" : 7284,
 "sleepWakeUUID" : "9CEF8430-EEF8-43BB-AC16-8A9FF7407F51",
 "sip" : "enabled",
 "sroute_id" : 12,
 "exception" : {"port":515,"signal":"SIGKILL","guardId":0,"codes":"0x0000000000000203, 0x0000000000000000","violations":["ILLEGAL_MOVE"],"message":" ILLEGAL_MOVE on mach port 515 (guarded with 0x0000000000000000)","subtype":"GUARD_TYPE_MACH_PORT","type":"EXC_GUARD","rawCodes":[515,0]},
 "termination" : {"namespace":"GUARD","flags":2,"code":2305843146652647939},
 "extMods" : {"caller":{"thread_create":0,"thread_set_state":0,"task_for_pid":0},"system":{"thread_create":0,"thread_set_state":0,"task_for_pid":0},"targeted":{"thread_create":0,"thread_set_state":0,"task_for_pid":0},"warnings":0},
 "faultingThread" : 0,
 "threads" : [{"threadState":{"r13":{"value":17179869201},"rax":{"value":268435466},"rflags":{"value":518},"cpu":{"value":0},"r14":{"value":0},"rsi":{"value":17179869201},"r8":{"value":0},"cr2":{"value":0},"rdx":{"value":225485783059},"r10":{"value":8963},"r9":{"value":1},"r15":{"value":1},"rbx":{"value":12273746752},"trap":{"value":133},"err":{"value":16777263},"r11":{"value":518},"rip":{"value":140703487757838,"matchesCrashFrame":1},"rbp":{"value":140701835479904},"rsp":{"value":140701835479800},"r12":{"value":2000},"rcx":{"value":140701835479800},"flavor":"x86_THREAD_STATE","rdi":{"value":12273746752}},"id":803926,"triggered":true,"name":"MainThread","queue":"com.apple.main-thread","frames":[{"imageOffset":3598,"symbol":"mach_msg2_trap","symbolLocation":10,"imageIndex":15},{"imageOffset":63010,"symbol":"mach_msg2_internal","symbolLocation":84,"imageIndex":15},{"imageOffset":32534,"symbol":"mach_msg_overwrite","symbolLocation":649,"imageIndex":15},{"imageOffset":4351,"symbol":"mach_msg","symbolLocation":19,"imageIndex":15},{"imageOffset":105830388,"imageIndex":13},{"imageOffset":105804163,"imageIndex":13},{"imageOffset":105797764,"imageIndex":13},{"imageOffset":84403291,"imageIndex":13},{"imageOffset":84575765,"imageIndex":13},{"imageOffset":84607663,"imageIndex":13},{"imageOffset":84609039,"imageIndex":13},{"imageOffset":2858,"imageIndex":0},{"imageOffset":25293,"symbol":"start","symbolLocation":1805,"imageIndex":16}]},{"id":804035,"name":"AsyncSignalControlThread","threadState":{"r13":{"value":0},"rax":{"value":4},"rflags":{"value":519},"cpu":{"value":0},"r14":{"value":123145365204839},"rsi":{"value":123145365204839},"r8":{"value":804035},"cr2":{"value":0},"rdx":{"value":1},"r10":{"value":12868005512},"r9":{"value":18446744069414584320},"r15":{"value":12855254214},"rbx":{"value":4516467360},"trap":{"value":133},"err":{"value":33554435},"r11":{"value":518},"rip":{"value":140703487760506},"rbp":{"value":123145365204880},"rsp":{"value":123145365204824},"r12":{"value":0},"rcx":{"value":123145365204824},"flavor":"x86_THREAD_STATE","rdi":{"value":3}},"frames":[{"imageOffset":6266,"symbol":"read","symbolLocation":10,"imageIndex":15},{"imageOffset":80187690,"imageIndex":13},{"imageOffset":80187613,"imageIndex":13},{"imageOffset":25171,"symbol":"_pthread_start","symbolLocation":99,"imageIndex":18},{"imageOffset":7151,"symbol":"thread_start","symbolLocation":15,"imageIndex":18}]},{"id":804036,"name":"RegisterFonts","threadState":{"r13":{"value":12249394624},"rax":{"value":12248738960},"rflags":{"value":582},"cpu":{"value":0},"r14":{"value":123145365738174},"rsi":{"value":12248738944},"r8":{"value":47},"cr2":{"value":0},"rdx":{"value":140704608934656,"symbolLocation":0,"symbol":"OBJC_CLASS_$___NSCFString"},"r10":{"value":14520574096406667351},"r9":{"value":1081004648057274360},"r15":{"value":0},"rbx":{"value":46},"trap":{"value":222},"err":{"value":0},"r11":{"value":18446620940592555649},"rip":{"value":140703488517977},"rbp":{"value":123145365738096},"rsp":{"value":123145365738064},"r12":{"value":12248738944},"rcx":{"value":281474976712588},"flavor":"x86_THREAD_STATE","rdi":{"value":7}},"frames":[{"imageOffset":63321,"symbol":"CFStringGetCharacters","symbolLocation":98,"imageIndex":19},{"imageOffset":888177,"symbol":"CFURLCreateFilePathURL","symbolLocation":1086,"imageIndex":19},{"imageOffset":78337,"symbol":"TLocalFontRegistryImp::RegisterFont(__CFURL const*, __CFDictionary const*, unsigned int, unsigned int, __CFError**) const","symbolLocation":459,"imageIndex":20},{"imageOffset":80946,"symbol":"TLocalFontRegistryImp::RegisterFonts(__CFArray const*, __CFDictionary const*, unsigned int, unsigned int, __CFArray const**, __CFArray const**, __CFArray const**) const","symbolLocation":182,"imageIndex":20},{"imageOffset":192767,"symbol":"XTRegisterFonts2","symbolLocation":701,"imageIndex":20},{"imageOffset":1297193,"symbol":"_CTFontManagerRegisterActionFontsForURLs(__CFArray const*, CTFontManagerScope, bool, Action, __CFArray const**)","symbolLocation":339,"imageIndex":21},{"imageOffset":1302263,"symbol":"_CTFontManagerRegisterActionFontURLs(__CFArray const*, CTFontManagerScope, bool, Action, URLTrust, __CFArray const*, bool (__CFArray const*, bool) block_pointer)","symbolLocation":42,"imageIndex":21},{"imageOffset":22427145,"imageIndex":13},{"imageOffset":22548154,"imageIndex":13},{"imageOffset":1778537,"imageIndex":8},{"imageOffset":25171,"symbol":"_pthread_start","symbolLocation":99,"imageIndex":18},{"imageOffset":7151,"symbol":"thread_start","symbolLocation":15,"imageIndex":18}]},{"id":804038,"frames":[{"imageOffset":7116,"symbol":"start_wqthread","symbolLocation":0,"imageIndex":18}],"threadState":{"r13":{"value":0},"rax":{"value":33554800},"rflags":{"value":512},"cpu":{"value":0},"r14":{"value":1},"rsi":{"value":5635},"r8":{"value":409604},"cr2":{"value":0},"rdx":{"value":123145365753856},"r10":{"value":0},"r9":{"value":18446744073709551615},"r15":{"value":123145366276984},"rbx":{"value":123145366278144},"trap":{"value":133},"err":{"value":33554800},"r11":{"value":582},"rip":{"value":140703488007116},"rbp":{"value":0},"rsp":{"value":123145366278144},"r12":{"value":5193732},"rcx":{"value":0},"flavor":"x86_THREAD_STATE","rdi":{"value":123145366278144}}},{"id":804039,"frames":[{"imageOffset":3598,"symbol":"mach_msg2_trap","symbolLocation":10,"imageIndex":15},{"imageOffset":63010,"symbol":"mach_msg2_internal","symbolLocation":84,"imageIndex":15},{"imageOffset":32534,"symbol":"mach_msg_overwrite","symbolLocation":649,"imageIndex":15},{"imageOffset":4351,"symbol":"mach_msg","symbolLocation":19,"imageIndex":15},{"imageOffset":105828717,"imageIndex":13},{"imageOffset":105832108,"imageIndex":13},{"imageOffset":105831825,"imageIndex":13},{"imageOffset":130195369,"imageIndex":13},{"imageOffset":25171,"symbol":"_pthread_start","symbolLocation":99,"imageIndex":18},{"imageOffset":7151,"symbol":"thread_start","symbolLocation":15,"imageIndex":18}],"threadState":{"r13":{"value":17179869442},"rax":{"value":268451845},"rflags":{"value":514},"cpu":{"value":0},"r14":{"value":44},"rsi":{"value":17179869442},"r8":{"value":0},"cr2":{"value":0},"rdx":{"value":0},"r10":{"value":42893838385152},"r9":{"value":42893838385152},"r15":{"value":42893838385152},"rbx":{"value":4516276304},"trap":{"value":133},"err":{"value":16777263},"r11":{"value":514},"rip":{"value":140703487757838},"rbp":{"value":123145368386448},"rsp":{"value":123145368386344},"r12":{"value":2000},"rcx":{"value":123145368386344},"flavor":"x86_THREAD_STATE","rdi":{"value":4516276304}}},{"id":804042,"frames":[{"imageOffset":7116,"symbol":"start_wqthread","symbolLocation":0,"imageIndex":18}],"threadState":{"r13":{"value":0},"rax":{"value":33554800},"rflags":{"value":512},"cpu":{"value":0},"r14":{"value":1},"rsi":{"value":15875},"r8":{"value":409604},"cr2":{"value":0},"rdx":{"value":123145368399872},"r10":{"value":0},"r9":{"value":18446744073709551615},"r15":{"value":123145368923000},"rbx":{"value":123145368924160},"trap":{"value":133},"err":{"value":33554800},"r11":{"value":582},"rip":{"value":140703488007116},"rbp":{"value":0},"rsp":{"value":123145368924160},"r12":{"value":5193732},"rcx":{"value":0},"flavor":"x86_THREAD_STATE","rdi":{"value":123145368924160}}}],
 "usedImages" : [
 {
   "source" : "P",
   "arch" : "x86_64",
   "base" : 4513308672,
   "CFBundleShortVersionString" : "155.0",
   "CFBundleIdentifier" : "org.mozilla.thunderbird",
   "size" : 36864,
   "uuid" : "4c4c4439-5555-3144-a100-2f79b5ba51e1",
   "path" : "\/Applications\/Thunderbird.app\/Contents\/MacOS\/thunderbird",
   "name" : "thunderbird",
   "CFBundleVersion" : "15526.8.28"
 },
 {
   "source" : "P",
   "arch" : "x86_64",
   "base" : 4514545664,
   "size" : 479232,
   "uuid" : "4c4c4442-5555-3144-a1b2-7d8d2d6587df",
   "path" : "\/Applications\/Thunderbird.app\/Contents\/MacOS\/libmozglue.dylib",
   "name" : "libmozglue.dylib"
 },
 {
   "source" : "P",
   "arch" : "x86_64",
   "base" : 4513558528,
   "CFBundleShortVersionString" : "1.0",
   "CFBundleIdentifier" : "com.apple.CoreWiFi",
   "size" : 53248,
   "uuid" : "c356ba94-c112-3326-9011-74fc0bb4dfde",
   "path" : "\/System\/Library\/PrivateFrameworks\/CoreWiFi.framework\/Versions\/A\/CoreWiFi",
   "name" : "CoreWiFi",
   "CFBundleVersion" : "802.64"
 },
 {
   "source" : "P",
   "arch" : "x86_64",
   "base" : 4517543936,
   "size" : 1687552,
   "uuid" : "d5ce0007-36ac-37a1-a5d7-07ad7365e60a",
   "path" : "\/System\/Library\/PrivateFrameworks\/CoreWiFi.framework\/Versions\/A\/CoreWiFiOld.dylib",
   "name" : "CoreWiFiOld.dylib"
 },
 {
   "source" : "P",
   "arch" : "x86_64",
   "base" : 4513423360,
   "CFBundleShortVersionString" : "1.0",
   "CFBundleIdentifier" : "com.apple.IO80211",
   "size" : 8192,
   "uuid" : "c0791260-3db4-30e8-962c-1d7a90bbe2d5",
   "path" : "\/System\/Library\/PrivateFrameworks\/IO80211.framework\/Versions\/A\/IO80211",
   "name" : "IO80211",
   "CFBundleVersion" : "1"
 },
 {
   "source" : "P",
   "arch" : "x86_64",
   "base" : 4513468416,
   "CFBundleShortVersionString" : "652.55.0",
   "CFBundleIdentifier" : "com.apple.WiFiPeerToPeer",
   "size" : 4096,
   "uuid" : "6de18c87-b584-3fba-b9f2-5439ee94f3f7",
   "path" : "\/System\/Library\/PrivateFrameworks\/WiFiPeerToPeer.framework\/Versions\/A\/WiFiPeerToPeer",
   "name" : "WiFiPeerToPeer",
   "CFBundleVersion" : "652.55"
 },
 {
   "source" : "P",
   "arch" : "x86_64",
   "base" : 6283714560,
   "size" : 344064,
   "uuid" : "d5ce0007-f5f4-3ab8-a256-05df5202823b",
   "path" : "\/System\/Library\/PrivateFrameworks\/IO80211.framework\/Versions\/A\/IO80211Old.dylib",
   "name" : "IO80211Old.dylib"
 },
 {
   "source" : "P",
   "arch" : "x86_64",
   "base" : 8157966336,
   "size" : 163840,
   "uuid" : "d5ce0007-9684-3a09-bf78-fb3a4f8bb7b1",
   "path" : "\/System\/Library\/PrivateFrameworks\/WiFiPeerToPeer.framework\/Versions\/A\/WiFiPeerToPeerOld.dylib",
   "name" : "WiFiPeerToPeerOld.dylib"
 },
 {
   "source" : "P",
   "arch" : "x86_64",
   "base" : 12254744576,
   "size" : 2936832,
   "uuid" : "4c4c449b-5555-3144-a1ce-153a9242e9fd",
   "path" : "\/Applications\/Thunderbird.app\/Contents\/MacOS\/libnss3.dylib",
   "name" : "libnss3.dylib"
 },
 {
   "source" : "P",
   "arch" : "x86_64",
   "base" : 12277346304,
   "size" : 11341824,
   "uuid" : "4c4c4478-5555-3144-a176-a5710479f9c6",
   "path" : "\/Applications\/Thunderbird.app\/Contents\/MacOS\/libgkcodecs.dylib",
   "name" : "libgkcodecs.dylib"
 },
 {
   "source" : "P",
   "arch" : "x86_64",
   "base" : 4517265408,
   "size" : 147456,
   "uuid" : "4c4c44b4-5555-3144-a1b9-b5c664969bb6",
   "path" : "\/Applications\/Thunderbird.app\/Contents\/MacOS\/liblgpllibs.dylib",
   "name" : "liblgpllibs.dylib"
 },
 {
   "source" : "P",
   "arch" : "x86_64",
   "base" : 4513509376,
   "CFBundleShortVersionString" : "16.0",
   "CFBundleIdentifier" : "com.apple.framework.CoreWLAN",
   "size" : 4096,
   "uuid" : "cf40012c-37ff-356e-863f-24c150978974",
   "path" : "\/System\/Library\/Frameworks\/CoreWLAN.framework\/Versions\/A\/CoreWLAN",
   "name" : "CoreWLAN",
   "CFBundleVersion" : "1657"
 },
 {
   "source" : "P",
   "arch" : "x86_64",
   "base" : 10154889216,
   "size" : 503808,
   "uuid" : "d5ce0007-0117-3ddb-beb8-5886a5f8b758",
   "path" : "\/System\/Library\/Frameworks\/CoreWLAN.framework\/Versions\/A\/CoreWLANOld.dylib",
   "name" : "CoreWLANOld.dylib"
 },
 {
   "source" : "P",
   "arch" : "x86_64",
   "base" : 12672946176,
   "size" : 187719680,
   "uuid" : "4c4c44ee-5555-3144-a15b-7a3b6ab61736",
   "path" : "\/Applications\/Thunderbird.app\/Contents\/MacOS\/XUL",
   "name" : "XUL"
 },
 {
   "source" : "P",
   "arch" : "x86_64",
   "base" : 4517457920,
   "CFBundleShortVersionString" : "1.0",
   "CFBundleIdentifier" : "org.mozilla.channelprefs",
   "size" : 8192,
   "uuid" : "4c4c4410-5555-3144-a148-95c735c87f29",
   "path" : "\/Applications\/Thunderbird.app\/Contents\/Frameworks\/ChannelPrefs.framework\/ChannelPrefs",
   "name" : "ChannelPrefs",
   "CFBundleVersion" : "1.0"
 },
 {
   "source" : "P",
   "arch" : "x86_64",
   "base" : 140703487754240,
   "size" : 245760,
   "uuid" : "10094a6c-fa57-367f-b06e-7c449ea31285",
   "path" : "\/usr\/lib\/system\/libsystem_kernel.dylib",
   "name" : "libsystem_kernel.dylib"
 },
 {
   "source" : "P",
   "arch" : "x86_64",
   "base" : 140703484272640,
   "size" : 574256,
   "uuid" : "69c73748-37ae-3a6f-83af-690645c3da75",
   "path" : "\/usr\/lib\/dyld",
   "name" : "dyld"
 },
 {
   "size" : 0,
   "source" : "A",
   "base" : 0,
   "uuid" : "00000000-0000-0000-0000-000000000000"
 },
 {
   "source" : "P",
   "arch" : "x86_64",
   "base" : 140703488000000,
   "size" : 49152,
   "uuid" : "c0db9cf9-86ec-31d4-a557-2c07945fd8f2",
   "path" : "\/usr\/lib\/system\/libsystem_pthread.dylib",
   "name" : "libsystem_pthread.dylib"
 },
 {
   "source" : "P",
   "arch" : "x86_64h",
   "base" : 140703488454656,
   "CFBundleShortVersionString" : "6.9",
   "CFBundleIdentifier" : "com.apple.CoreFoundation",
   "size" : 4849651,
   "uuid" : "541c6f06-0abc-39f5-a7d2-3cad5db19c04",
   "path" : "\/System\/Library\/Frameworks\/CoreFoundation.framework\/Versions\/A\/CoreFoundation",
   "name" : "CoreFoundation",
   "CFBundleVersion" : "3038.1.403"
 },
 {
   "source" : "P",
   "arch" : "x86_64",
   "base" : 140703642087424,
   "size" : 311288,
   "uuid" : "31b7fceb-b146-3e8d-a297-87c67730f388",
   "path" : "\/System\/Library\/Frameworks\/ApplicationServices.framework\/Versions\/A\/Frameworks\/ATS.framework\/Versions\/A\/Resources\/libFontRegistry.dylib",
   "name" : "libFontRegistry.dylib"
 },
 {
   "source" : "P",
   "arch" : "x86_64",
   "base" : 140703527276544,
   "CFBundleShortVersionString" : "841.0.0.1",
   "CFBundleIdentifier" : "com.apple.CoreText",
   "size" : 2232310,
   "uuid" : "c3eb23cc-fc68-312e-bc9d-8e28a4a44da3",
   "path" : "\/System\/Library\/Frameworks\/CoreText.framework\/Versions\/A\/CoreText",
   "name" : "CoreText",
   "CFBundleVersion" : "841.0.0.1"
 }

],

 "sharedCache" : {
 "base" : 140703483523072,
 "size" : 25769803776,
 "uuid" : "c9dad4ae-9265-384e-a2aa-c55a04f80ba8"

},

 "vmSummary" : "ReadOnly portion of Libraries: Total=1.3G resident=0K(0%) swapped_out_or_unallocated=1.3G(100%)\nWritable regions: Total=7.6G written=0K(0%) resident=0K(0%) swapped_out=0K(0%) unallocated=7.6G(100%)\n\n                                VIRTUAL   REGION \nREGION TYPE                        SIZE    COUNT (non-coalesced) \n===========                     =======  ======= \nActivity Tracing                   256K        1 \nKernel Alloc Once                    8K        1 \nMALLOC                           550.1M       21 \nMALLOC guard page                   24K        6 \nSTACK GUARD                       56.0M        6 \nStack                             12.0M        6 \nVM_ALLOCATE                      132.0M       18 \nVM_ALLOCATE (reserved)             7.1G       10         reserved VM address space (unallocated)\n__CTF                               824        1 \n__DATA                            30.4M      877 \n__DATA_CONST                      95.2M      881 \n__DATA_DIRTY                      2560K      333 \n__FONT_DATA                        2352        1 \n__INFO_FILTER                         8        1 \n__LINKEDIT                       186.2M       17 \n__OBJC_RO                         76.1M        1 \n__OBJC_RW                         2354K        2 \n__TEXT                             1.1G      902 \n__TPRO_CONST                       272K        2 \ndsce.got                           124K        1 \ndyld private memory                512K        2 \nmapped file                       53.2M       51 \nowned unmapped memory               20K        1 \nshared memory                     1124K        9 \n===========                     =======  ======= \nTOTAL                              9.4G     3151 \nTOTAL, minus reserved VM space     2.3G     3151 \n",
 "legacyInfo" : {
 "threadTriggered" : {
   "name" : "MainThread",
   "queue" : "com.apple.main-thread"
 }

},

 "logWritingSignature" : "984ed7d0a9986f5780dfbc65fcf5fb03d3fe11b7",
 "trialInfo" : {
 "rollouts" : [
   {
     "rolloutId" : "60da5e84ab0ca017dace9abf",
     "factorPackIds" : {

     },
     "deploymentId" : 240000008
   },
   {
     "rolloutId" : "639124e81d92412bfb4880b3",
     "factorPackIds" : {

     },
     "deploymentId" : 240000012
   }
 ],
 "experiments" : [

 ]

} }

Model: MacBookPro15,2, BootROM 2022.100.22.0.0, 4 processors, Quad-Core Intel Core i7, 2,11 GHz, 32 GB, SMC Graphics: Intel HD Graphics 620, Intel HD Graphics 620, Built-In Display: Unknown Display, 2048 x 1152, Main, MirrorOff, Online Memory Module: BANK 0/ChannelA-DIMM0, 16 GB, DDR4, 2400 MHz, SK Hynix, HMA82GS6AFR8N-UH Memory Module: BANK 2/ChannelB-DIMM0, 16 GB, DDR4, 2400 MHz, SK Hynix, HMA82GS6AFR8N-UH AirPort: spairport_wireless_card_type_wifi (0x14E4, 0x117), Broadcom BCM43xx 1.0 (7.77.111.1 AirPortDriverBrcmNIC-1772.1) AirPort: Bluetooth: Version (null), 0 services, 0 devices, 0 incoming serial ports Network Service: Wi-Fi, AirPort, en1 PCI Card: Intel HD Graphics 620, VGA compatible controller, Internal@0,2,0 PCI Card: Sunrise Point-LP HD Audio, Audio device, Internal@0,31,3 USB Device: USB30Bus USB Device: USB3.0-CRW USB Device: vendor_device USB Device: Integrated Camera USB Device: BRCM20702 Hub USB Device: Bluetooth USB Host Controller Thunderbolt Bus:

I added a new entry in my Address Book and sent a message to that person. I next tried to use Thunderbird to read messages and it locked up. No system shutdown/restart fixed that. Reinstall ofThunderbird did not fix it either. I have many stored messages that I do not want to lose, so I have not erased all about Thunderbird. What do I try next?

I cannot open the email program with Thunderbird, I have trie to open it by pressing Shift and Thunderbird Icaon, thus the Repair menu opens, I have tried every combination in that , like starting in the secured modus, but it did not help, I have tried to delete the "parent-lock" data in %appadat%\Thunderbird\Profiles\ - it said that I cannot delete it,because it is opened in Thunderbird. Would you kindly help me? Thank you very much

When starting thunderbird, the program cannot find my e-mails and does not respond. It is frozen. deinstallation and new installation did not help. The version i do not know because I cannot open the menue.

When are you finally fixing the exponentially raising problems to work with Thunderbird and Gmail? It is getting totally out of hand! Since my upgrade to the latest version NOTHING works anymore!

After stating TB the imap.gmail.com is running forever, freezing TB up. After ending the hung up programs 5 TB processes remain. Even after trying to kill them in the taskmgr, one remains active forever, is NOT kill-able anymore, and PC needs to be rebootet. End of story!

TB become a HORRIBLE Disaster!

I have several open email tabs but they are showing nothing and when I find the email in my in box it opens blank I've also had problems with thunderbird opening have had to restart computer several times?

I was having problems with my chromebook. when I start my chromebook and i click on the thunderbird icon it doesn't open ! I have restored my chrombook and reinstalled thunderbird again but the problem is still there. The only way to access thunderbird is to open linux and type in thunderbird and then i have access to thunderbird once I turn off my chromebook and then reopen it once again thunderbird is not working !

Hi, I have been a Thunderbird user for many years and have over 16,000 emails in my account.

Today when I launched TB it comes up with blank screen with No Response on the top left. See screen shot image upload.

I have tried launching with Thunderbird -P and it only shows default account named default.

- other places show 3 accounts with one having -release

--Users\myuserID\local\Thunderbird\profiles:

   9qflpwnsdefault
   8593y64.default-release
   fsomy6as.default

--Users\myuserID\AppData\Roaming\profiles\ shows the 3 listed above.

I have tried launching Windows 11 in Safe Mode, same issue. I have tried the Troubleshoot Tool with same result.

Any ideas on how I can get TB to load correctly and show me my emails?

Please let me know if you need additional information.

thank you, George

Since upgrading my MacBook Pro to Tahoe 26.6.2, I notice that Thunderbird continually crashes when I open it. I've tried closing Thunderbird after each check of email, and I think that helps (at least a little).

Thunderbird widow is coming up on the sceen and says loading mesages. Does not happen. And it is not possible to promt. It is also impossible to quit the programme, I have to turn off the lap top. I have upgraded, seems to be ok. but the problem is still there. Geir H W

I have just re-started my problem when this system crashes again. For 3 weeks I have sent reports of sites being crashed. The has not been any changes. It happens when on web site and also when using E-mail. HELP!

how do I configure the account to minimize CPU resources when thunderbird starts up. Once I can get thuderbird to start OK, what are the next steps. It is likely this user has not powered this machine down more often than once every few months. And thanks, I don't anyone else who uses their computer like this.

can you add an option into the program that when it cant read the local emails from the disk for some reason, then it would ask for my permission to re-download everything and/or add an option to close or restart the program?

there is some really annoying bug when the Pc is in the process of using all of the available Ram (for some reason) and when i open TB at the same time, everything gets really slow, and instead of actually pausing to figure out what is wrong, the ******** ********** ****** just starts to throw in even more work to download all of the emails again for some reason, not even giving any explanation why it wants to do it in the 1st place....................... (while the screen even just blanks out, just because there isnt enough Ram avail to display all of this *********** *****........)

Every time I start Thunderbird it takes several minutes and sometimes doesn't start up. Once it does open up, emails do update new ones but if I go to account settings and select anything it hangs up. If I click on it, grays out and gets a message Thunderbird not responding. I have to open task manager to stop the program. Why aren't the emails on my email server get deleted/ moved updated when using Thunderbird? It seems like the only thing that happens only gets changed on the device I made changes to only. (computer, or phone or laptop)