sounded plausible, but I don't seem to find the email option in Windows Defender nor McAffee...

thanks, Sfhowes, but it's McAffee Security Scan Plus (where there's no email-option, so to see), which doesn't even appear to be running, since I have no shield-icon in the tray....

oh, and I have no add-ons in TB..

Done, and done. Nothing changes. Even in safe mode, keeps chrashing.

this is what i did: - deinstalled mcaffee - deinstalled TB

problem was not solved next i did: - delete TB-folder - deinstalled TB - restarted laptop - restarted laptop again - installed TB again

things crashed, even in safe mode.

I'm at wits end here...

both, didn't do a thing...

I did this, and now I'm unable to delete mails. there's no trashfolder anymore... If i move a message to a subfolder it still crashes...

what is the crash id? https://support.mozilla.org/en-US/kb/mozilla-crash-reporter-tb#w_viewing-crash-reports

do you need this? AdapterDeviceID: 0x1616 AdapterDriverVersion: 20.19.15.4531 AdapterSubsysID: 382a17aa AdapterVendorID: 0x8086 Add-ons: %7Be2fda1a4-762b-4020-b5ad-a41df1933103%7D:5.4.0.1,%7B972ce4c6-7e08-4474-a285-3208198ce6fd%7D:52.0.1 AvailablePageFile: 8183021568 AvailablePhysicalMemory: 3398643712 AvailableVirtualMemory: 3637112832 BIOS_Manufacturer: LENOVO BlockedDllList: BreakpadReserveAddress: 55705600 BreakpadReserveSize: 67108864 BuildID: 20170413214957 CPUMicrocodeVersion: 0x1f ContentSandboxCapable: 1 ContentSandboxLevel: 0 CrashTime: 1492906758 EMCheckCompatibility: true Email: FramePoisonBase: 00000000f0de0000 FramePoisonSize: 65536 InstallTime: 1492371495 Notes: AdapterVendorID: 0x8086, AdapterDeviceID: 0x1616, AdapterSubsysID: 382a17aa, AdapterDriverVersion: 20.19.15.4531 FP(D10-L1100-W00001000-T0000) DWrite? DWrite+ ProductID: {3550f703-e582-4d05-9a08-453d09bdfdc6} ProductName: Thunderbird ReleaseChannel: release SafeMode: 0 SecondsSinceLastCrash: 2552 StartupCrash: 0 StartupTime: 1492904210 SystemMemoryUsePercentage: 60 TelemetryEnvironment: {"build":{"applicationId":"{3550f703-e582-4d05-9a08-453d09bdfdc6}","applicationName":"Thunderbird","architecture":"x86","buildId":"20170413214957","version":"52.0.1","vendor":null,"platformVersion":"52.0.1","xpcomAbi":"x86-msvc","hotfixVersion":null},"partner":{"distributionId":null,"distributionVersion":null,"partnerId":null,"distributor":null,"distributorChannel":null,"partnerNames":[]},"system":{"memoryMB":8105,"virtualMaxMB":4096,"cpu":{"count":4,"cores":2,"vendor":"GenuineIntel","family":6,"model":61,"stepping":4,"l2cacheKB":256,"l3cacheKB":3072,"speedMHz":2195,"extensions":["hasMMX","hasSSE","hasSSE2","hasSSE3","hasSSSE3","hasSSE4_1","hasSSE4_2","hasAVX","hasAVX2"]},"os":{"name":"Windows_NT","version":"10.0","locale":"nl-BE","servicePackMajor":0,"servicePackMinor":0,"windowsBuildNumber":14393,"windowsUBR":321,"installYear":2016},"hdd":{"profile":{"model":"ST1000LM024 HN-M101MBB","revision":"2BA30001"},"binary":{"model":"ST1000LM024 HN-M101MBB","revision":"2BA30001"},"system":{"model":"ST1000LM024 HN-M101MBB","revision":"2BA30001"}},"gfx":{"D2DEnabled":false,"DWriteEnabled":true,"ContentBackend":"Skia","adapters":[{"description":"Intel(R) HD Graphics 5500","vendorID":"0x8086","deviceID":"0x1616","subsysID":"382a17aa","RAM":null,"driver":"igdumdim64 igd10iumd64 igd10iumd64 igd12umd64 igdumdim32 igd10iumd32 igd10iumd32 igd12umd32","driverVersion":"20.19.15.4531","driverDate":"9-29-2016","GPUActive":true}],"monitors":[{"screenWidth":1366,"screenHeight":768,"refreshRate":60,"pseudoDisplay":false}],"features":{"compositor":"basic","d3d11":{"status":"unavailable"},"d2d":{"status":"unavailable","version":"1.1"}}},"isWow64":true},"settings":{"blocklistEnabled":true,"e10sEnabled":false,"e10sCohort":"unknown","telemetryEnabled":false,"locale":"nl","update":{"channel":"release","enabled":true,"autoDownload":true},"userPrefs":{"browser.cache.disk.capacity":358400},"addonCompatibilityCheckEnabled":true,"isDefaultBrowser":null},"profile":{"creationDate":16150},"addons":{"activeAddons":{"{e2fda1a4-762b-4020-b5ad-a41df1933103}":{"blocklisted":false,"description":"Geïntegreerde agenda’s en planning voor uw e-mailclient","name":"Lightning","userDisabled":false,"appDisabled":false,"version":"5.4.0.1","scope":1,"type":"extension","foreignInstall":true,"hasBinaryComponents":false,"installDay":16776,"updateDay":17272,"isSystem":false}},"theme":{"id":"{972ce4c6-7e08-4474-a285-3208198ce6fd}","blocklisted":false,"description":"Het standaardthema.","name":"Standaard","userDisabled":false,"appDisabled":false,"version":"52.0.1","scope":4,"foreignInstall":false,"hasBinaryComponents":false,"installDay":16320,"updateDay":17270},"activePlugins":[],"activeGMPlugins":{},"activeExperiment":{},"persona":null}} Theme: classic/1.0 Throttleable: 1 TotalPageFile: 14940704768 TotalPhysicalMemory: 8498253824 TotalVirtualMemory: 4294836224 URL: UptimeTS: 5463.005558687 Vendor: Version: 52.0.1 Winsock_LSP: Hyper-V RAW : 2 : 34 : 1 : 1 : 0x20026 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 1234191b-4bf7-4ca7-86e0-dfd7c32b5445

MSAFD Tcpip [TCP/IP] : 2 : 2 : 1 : 6 : 0x20066 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : e70f1aa0-ab8b-11cf-8ca3-00805f48a192 
MSAFD Tcpip [UDP/IP] : 2 : 2 : 2 : 17 : 0x20609 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : e70f1aa0-ab8b-11cf-8ca3-00805f48a192 
MSAFD Tcpip [RAW/IP] : 2 : 2 : 3 : 0 : 0x20609 : 0xc : %SystemRoot%\system32\mswsock.dll :  : e70f1aa0-ab8b-11cf-8ca3-00805f48a192 
MSAFD Tcpip [TCP/IPv6] : 2 : 23 : 1 : 6 : 0x20066 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : f9eab0c0-26d4-11d0-bbbf-00aa006c34e4 
MSAFD Tcpip [UDP/IPv6] : 2 : 23 : 2 : 17 : 0x20609 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : f9eab0c0-26d4-11d0-bbbf-00aa006c34e4 
MSAFD Tcpip [RAW/IPv6] : 2 : 23 : 3 : 0 : 0x20609 : 0xc : %SystemRoot%\system32\mswsock.dll :  : f9eab0c0-26d4-11d0-bbbf-00aa006c34e4 
RSVP TCPv6-serviceprovider : 2 : 23 : 1 : 6 : 0x22066 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9d60a9e0-337a-11d0-bd88-0000c082e69a 
RSVP TCP-serviceprovider : 2 : 2 : 1 : 6 : 0x22066 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9d60a9e0-337a-11d0-bd88-0000c082e69a 
RSVP UDPv6-serviceprovider : 2 : 23 : 2 : 17 : 0x22609 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9d60a9e0-337a-11d0-bd88-0000c082e69a 
RSVP UDP-serviceprovider : 2 : 2 : 2 : 17 : 0x22609 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9d60a9e0-337a-11d0-bd88-0000c082e69a 
MSAFD Irda [IrDA] : 2 : 26 : 1 : 1 : 0x20006 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 3972523d-2af1-11d1-b655-00805f3642cc 
MSAFD RfComm [Bluetooth] : 2 : 32 : 1 : 3 : 0x20026 : 0x8 : %SystemRoot%\system32\mswsock.dll :  : 9fc48064-7298-43e4-b7bd-181f2089792a

useragent_locale: nl

Dit rapport bevat tevens technische gegevens over de staat van de toepassing toen deze

or rather this: https://crash-stats.mozilla.com/report/index/0d84aab0-0654-4a26-95df-8202f0170423

matthieuvs said

or rather this: https://crash-stats.mozilla.com/report/index/0d84aab0-0654-4a26-95df-8202f0170423

This

While I have no concrete answer, looking at the comments on the reports it looks like each case the issue involves deleting or making the relevant folder storage file smaller.

While I do not really think this will "fix" the problem it is a necessary step. But there is also the might fix it factor.

Windows key + X Select disk management from the menu. For the C: drive right click and select properties. On the general tab select disk cleanup. On the Tools tab select optimize and defragment the drive. (This will probably require a reboot.) The defragment will check the drive for errors. Hopefully you have none, but you never know.

Please report results. This is far from done I think.

sorry, been a week out, had some other things to fix. Funnily enough, yesterday morning it suddenly ceased happening. Maybe an update happened, I have no idea, but thunderbird works like a doll again. Still, thx for the support!

We are working on an updated version to fix this crash. (It is not yet fixed as of version 52.1.0) Until then, there is a fair chance you will see the crash again.