When another user uses the Windows 10 Home PC and lets it go to sleep, when I activate my account, I see the attached windows. This behaviour does not occur if I start the PC and log in to Thunderbird quickly. Application Basics Name Thunderbird Version 68.4.2 Build ID 20200123140255 Update Channel release User Agent Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.4.2 OS Windows_NT 10.0 Launcher Process Enabled Multiprocess Windows 0/0 Disabled Remote Processes 0 Enterprise Policies Inactive Google Location Service Key Missing Google Safebrowsing Key Missing Mozilla Location Service Key Missing Safe Mode false Mail and News Accounts ID Incoming server Outgoing servers Name Connection security Authentication method Name Connection security Authentication method Default? account2 (none) Local Folders plain passwordCleartext account7 (pop3) pop.shaw.ca:995 SSL passwordCleartext mail.shaw.ca:25 plain passwordCleartext true Crash Reports for the Last 3 Days Report ID Submitted Remote Processes Type Count Extensions Name Version Enabled ID Amazon.co.uk 1.1 true [email protected] Bing 1.0 true [email protected] DuckDuckGo 1.0 true [email protected] Google 1.0 true [email protected] Lightning 68.4.2 true {e2fda1a4-762b-4020-b5ad-a41df1933103} Signature Switch 1.8.2 true {2ab1b709-ba03-4361-abf9-c50b964ff75d} Twitter 1.0 true [email protected] Wikipedia (en) 1.0 true [email protected] Security Software Type Name Antivirus Avast Antivirus Antispyware Firewall Graphics Features Compositing Basic Asynchronous Pan/Zoom none WebGL 1 Driver WSI Info EGL_VENDOR: Google Inc. (adapter LUID: 0000000000009823) EGL_VERSION: 1.4 (ANGLE 2.1.0.8a050090f926) EGL_EXTENSIONS: EGL_EXT_create_context_robustness EGL_ANGLE_d3d_share_handle_client_buffer ES_compressed_ETC1_RGB8_texture GL_OES_depth32 GL_OES_e