Do you have a crash ID? https://support.mozilla.org/en-US/kb/mozilla-crash-reporter-tb#w_viewing-crash-reports

Here are my crashes from today:

bp-3e2e22f8-d80f-4c55-a85b-eece62150717 bp-97750bce-c33c-4433-9e58-d92172150717 bp-0ccd5649-7ab5-468f-ac45-651632150717 bp-5263cba8-ab95-4483-9863-db8712150717 bp-62655f5a-9f88-4978-9b62-16f302150717 bp-1109f972-0cea-4847-a73c-65b6d2150717 bp-3dc9218a-9c8d-44d4-941f-ecafb2150717 bp-ec2eee8a-14c6-45ab-9068-834d42150717 bp-e42aea6c-4114-4870-8b8c-a5a422150717 bp-00332c77-3207-4935-bb82-a09c12150717 bp-1799f2e0-283d-48a1-917b-9ff1c2150717 bp-6f095044-598a-4931-b095-a458d2150717 bp-5b31894c-bf09-408c-8cb4-9b1e32150717 bp-5393162e-05c0-43c3-8d3c-b2cc22150717 bp-8838e8f4-5375-4913-9a9a-b91052150717 bp-8132ce92-766a-49c4-8408-6742c2150717 bp-b1dfbb91-de27-47dd-bbdb-c58992150717 bp-5a782523-958d-484b-ae87-4916f2150717 bp-466a4cac-122d-473b-ba66-9f6382150717 bp-700d1965-310c-4cfd-9e2a-5429c2150717

The most recent one actually happened when running in Safe Mode, but I've only had the one since I started switched to Safe Mode.

Thunderbird has actually been slightly unstable for me for a while -- I've had 14 crashes in the last 2 1/2 months. But that's not bad compared to 14 in an hour like I had today.

The crash appears to be related to your Nvidia graphics driver. Try to disable hardware acceleration in Thunderbird.

Tools (Alt-T) - Options - Advanced - General Uncheck 'Use hardware acceleration'.

It's stable now with hardware acceleration disabled, Thanks.

Is there anything I can do to help track down the problem? I guess I should start with making sure my graphics driver is up to date.

Please post the graphics section from the troubleshooting information on the help menu. (copy and paste.)

Here you go.

Adapter Description Intel(R) HD Graphics 4000 Vendor ID 0x8086 Device ID 0x0166 Adapter RAM Unknown Adapter Drivers igdumd64 igd10umd64 igd10umd64 igdumd32 igd10umd32 igd10umd32 Driver Version 8.15.10.2696 Driver Date 3-19-2012 Adapter Description (GPU #2) NVIDIA GeForce GT 630M Vendor ID (GPU #2) 0x10de Device ID (GPU #2) 0x0de9 Adapter RAM (GPU #2) 2047 Adapter Drivers (GPU #2) nvd3dumx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um Driver Version (GPU #2) 9.18.13.697 Driver Date (GPU #2) 10-2-2012 Direct2D Enabled false DirectWrite Enabled false (6.2.9200.17292) ClearType Parameters ClearType parameters not found WebGL Renderer false GPU Accelerated Windows 0 AzureCanvasBackend skia AzureSkiaAccelerated 0 AzureFallbackCanvasBackend cairo AzureContentBackend cairo

Thanks for that. Hardware acceleration is a truly messy place. Firefox is battling with it and Thunderbird goes along for the ride. Basically all we can do is document difficult drivers and leave the rest to the developers. However There is no real benefit in Hardware acceleration for mail that I can see. It is not as if we are displaying video.

Hello Having the same problems, no idea of causes... Thunderbird 38.3.0

Here is troubleshooting info.

Application Basics Name Thunderbird Version 38.3.0 User Agent Mozilla/5.0 (Windows NT 6.3; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 Profile Folder (Local drive) Application Build ID 20150928051427 Enabled Plugins about:plugins Build Configuration about:buildconfig Memory Use about:memory Mail and News Accounts ID Incoming server Outgoing servers Name Connection security Authentication method Name Connection security Authentication method Default? account1 (imap) imap.gmail.com:993 SSL/TLS OAuth2 smtp.gmail.com:465 SSL/TLS OAuth2 true account2 (none) Local Folders None Normal password Crash Reports Report ID Submitted bp-9938a0be-6e9e-4ff5-8591-df3792151007 07/10/2015 bp-721c5d24-dad1-4bf9-ac60-d1a5b2151007 07/10/2015 bp-db755837-2d05-42a4-94af-229252150930 30/09/2015 bp-fe4b2e34-eb88-4938-a2bc-7f52f2150926 26/09/2015

All Crash Reports Extensions Name Version Enabled ID gContactSync 2.0.7 true gContactSync@pirules.net Lightning 4.0.3 true {e2fda1a4-762b-4020-b5ad-a41df1933103} Provider for Google Calendar 1.0.4 true {a62ef8ec-5fdc-40c2-873c-223b8a6925cc} Important Modified Preferences Name Value browser.cache.disk.capacity 358400 browser.cache.disk.smart_size_cached_value 358400 browser.cache.disk.smart_size.first_run false browser.cache.disk.smart_size.use_old_max false extensions.lastAppVersion 38.3.0 font.name.monospace.el Consolas font.name.monospace.x-cyrillic Consolas font.name.monospace.x-unicode Consolas font.name.monospace.x-western Consolas font.name.sans-serif.el Calibri font.name.sans-serif.x-cyrillic Calibri font.name.sans-serif.x-unicode Calibri font.name.sans-serif.x-western Calibri font.name.serif.el Cambria font.name.serif.x-cyrillic Cambria font.name.serif.x-unicode Cambria font.name.serif.x-western Cambria font.size.fixed.el 14 font.size.fixed.x-cyrillic 14 font.size.fixed.x-unicode 14 font.size.fixed.x-western 14 font.size.variable.el 17 font.size.variable.x-cyrillic 17 font.size.variable.x-unicode 17 font.size.variable.x-western 17 mail.openMessageBehavior.version 1 mail.winsearch.firstRunDone true mailnews.database.global.datastore.id 724c906c-f5ef-4da6-956b-b893f46681a mailnews.database.global.views.conversation.columns {"threadCol":{"visible":true,"ordinal":"1"},"flaggedCol":{"visible":true,"ordinal":"3"},"attachmentCol":{"visible":false… network.cookie.prefsMigrated true network.predictor.cleaned-up true places.database.lastMaintenance 1443689707 places.history.expiration.transient_current_max_pages 104858 plugin.importedState true Graphics Adapter Description Intel(R) HD Graphics Family Vendor ID 0x8086 Device ID 0x0a16 Adapter RAM Unknown Adapter Drivers igdumdim64 igd10iumd64 igd10iumd64 igdumdim32 igd10iumd32 igd10iumd32 Driver Version 10.18.10.3496 Driver Date 3-7-2014 Adapter Description (GPU #2) NVIDIA GeForce 840M Vendor ID (GPU #2) 0x10de Device ID (GPU #2) 0x1341 Adapter RAM (GPU #2) 2048 Adapter Drivers (GPU #2) nvd3dumx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2um Driver Version (GPU #2) 9.18.13.3285 Driver Date (GPU #2) 3-13-2014 Direct2D Enabled false DirectWrite Enabled false (6.3.9600.17111) ClearType Parameters ClearType parameters not found WebGL Renderer false GPU Accelerated Windows 0 AzureCanvasBackend skia AzureSkiaAccelerated 0 AzureFallbackCanvasBackend cairo AzureContentBackend cairo

And crash reports - the latest bp-9938a0be-6e9e-4ff5-8591-df3792151007

Thanks for any help...Do I receive email notifiaction of updates to this thread? David