Hello, my Thunderbird frequently crashes, but I only seem to get the notice when I attempt to close out of TB. Looking through the different Crash Reports, I see they all have the same Crash Reason: Crash Reason EXCEPTION_ACCESS_VIOLATION_READ. I am ready to provide any further details you may need to help me identify the problem. I have been allowing the crash reports to be submitted to you when they happen. Application Basics Name Thunderbird Version 52.8.0 User Agent Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.8.0 Profile Folder Open Folder (Local drive) Application Build ID 20180516145259 Enabled Plugins about:plugins Build Configuration about:buildconfig Memory Use about:memory Profiles about:profiles Mail and News Accounts ID Incoming server Outgoing servers Name Connection security Authentication method Name Connection security Authentication method Default? account3 (none) Local Folders plain passwordCleartext account7 (imap) imap.gmail.com:993 SSL passwordCleartext smtp.googlemail.com:465 SSL passwordCleartext true account10 (imap) imap.gmail.com:993 SSL OAuth2 smtp.gmail.com:465 SSL OAuth2 true account15 (imap) outlook.office365.com:993 SSL passwordCleartext smtp.googlemail.com:465 SSL passwordCleartext true Crash Reports Report ID Submitted bp-c4f99935-d877-4dcc-bf0a-bd5f70180616 06/16/2018 bp-2982bce7-2229-4ae0-994c-af9860180616 06/16/2018 bp-4dc8ccab-c2cf-42ce-8d16-3df5f0180615 06/14/2018 bp-e7f3aa89-15ae-4525-9dfb-e24a10180614 06/14/2018 bp-79a20cd8-218b-4151-9ac6-49e670180607 06/07/2018 Extensions Name Version Enabled ID Lightning 5.4.8 true {e2fda1a4-762b-4020-b5ad-a41df1933103} Provider for Google Calendar 3.3 true {a62ef8ec-5fdc-40c2-873c-223b8a6925cc} QuickFolders 4.9.1 true quickfolders@curious.be