Almost every one of those crashes has a different crash signature, with uptime of 15 minutes to a day (on average), and none have bug reports.

Some show no add-ons running, so you have tried Thunderbird in Troubleshoot Mode? But some do: duplicateContactsManager@ddvo.net duplicateContactsManager 2.1.1 mailmerge@example.net Mail Merge 10.5.0 {2ab1b709-ba03-4361-abf9-c50b964ff75d} Signature Switch 2.18.1 {8845E3B3-E8FB-40E2-95E9-EC40294818C4} Quicktext

My money is on Bitdefender, or whatever is installed for 3DCONNEXION S.A.M. Try Windows start Windows in safe mode with networking enabled - https://support.microsoft.com/en-us/help/12376/windows-10-start-your-pc-in-safe-mode

Thanks,

Huzzah! This is interesting because BitDefender isn't installed on this PC, but crash reports shows two .dll files related to BitDefender: gemmauf64.dll and bdhkm64.dll

I'll do a seek and find on where those .dlls are located. Maybe I'll find something under that rock. ;-)

Still no luck. I've had 14 crashes in the last 2 days. I've disabled the Active Protect on Vipre (I learned that they use Bitdefender's module for this), and am working with 3DConnexion to see if they can offer assistance. In the meanwhile, can someone please explain where to look in the crash reports for the most viable suspect for the specific crash? The popup crash details often don't exactly correspond with the crash report itself. I need help navigating these crash report tabs to try and pinpoint the issue: Details; Crash annotations; Bugzilla; Modules; Raw Data and minidumps; Extensions; Telemetry Environment; Correlations; or Debug.

thanks again