Thunderbird Community Forum

After several automatic upgrades of Thunderbird to version 150.0, I all of a sudden can't connect with the pop3 server provided by my ISP.

Troubleshooting information is as follows:

 Application Basics

   Name: Thunderbird
   Version: 150.0
   Build ID: 20260416011526
   Distribution ID:

   Update Channel: release
   User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:150.0) Gecko/20100101 Thunderbird/150.0
   OS: Windows_NT 10.0 26200
   OS Theme:

   Launcher Process: Enabled
   Multiprocess Windows: 0/0
   Fission Windows: 0/0
             Enabled by default
   Remote Processes: 1
   Enterprise Policies: Inactive
   Google Location Service Key: Missing
   Google Safebrowsing Key: Missing
   Mozilla Location Service Key: Missing
   Safe Mode: false
   Memory Size (RAM): 31.4 GB
   Disk Space Available: 95.1 GB

 Mail and News Accounts
   account1:
     INCOMING: account1, , (pop3) pop.gvtc.com:995, SSL, passwordCleartext
     OUTGOING: , smtp.gvtc.com:465, SSL, passwordCleartext, true

   account2:
     INCOMING: account2, , (none) Local Folders, plain, passwordCleartext

 Libraries

     Library
     Status
     Expected minimum version
     Version in use
     Path

       RNP (OpenPGP)
       OK
       0.18.1
       0.18.1.MZLA.150.0.botan.3.8.1
       C:\Program Files\Mozilla Thunderbird\rnp.dll

       OTR
       Failed to load. OTR chat encryption will not work.
       -
       -
       -

 Calendar Settings

     Susan

       Name
       Value

       Name:
       Type: storage
       Disabled: false
       Username:
       URI:
       Refresh Interval:
       Read-only: false
       Suppress Alarms: false
       Cache Enabled: false
       iMIP Identity: id1
       iMIP Disabled:
       iMIP Account:
       Organizer Id:
       Force Email Scheduling:
       Popup Alarms Supported:
       Alarms on Invitation Supported:
       Max Alarms Per Event:
       Attachment Supported:
       Max Categories:
       Privacy State Supported:
       Priority Supported: true
       Event Supported:
       Task Supported:
       Local Time Supported:
       UTC/GMT Supported:
       Auto-Scheduling Supported:

     Home

       Name
       Value

       Name:
       Type: storage
       Disabled: false
       Username:
       URI:
       Refresh Interval:
       Read-only:
       Suppress Alarms:
       Cache Enabled:
       iMIP Identity: id1
       iMIP Disabled:
       iMIP Account:
       Organizer Id:
       Force Email Scheduling:
       Popup Alarms Supported:
       Alarms on Invitation Supported:
       Max Alarms Per Event:
       Attachment Supported:
       Max Categories:
       Privacy State Supported:
       Priority Supported: true
       Event Supported:
       Task Supported:
       Local Time Supported:
       UTC/GMT Supported:
       Auto-Scheduling Supported:

 Crash Reports for the Last 3 Days

 Remote Processes

   Type: Count

   GPU: 1

 Add-ons

     Name
     Type
     Version
     Enabled
     Location
     ID

       System theme — auto
       theme
       1.4.2
       true
       app-builtin
       default-theme@mozilla.org

       Dark
       theme
       1.3.2
       false
       app-builtin
       thunderbird-compact-dark@mozilla.org

       Light
       theme
       1.3.2
       false
       app-builtin
       thunderbird-compact-light@mozilla.org

 Security Software

   Type: Name

     Antivirus: Trend Micro Internet Security
     Antispyware:
     Firewall: Windows Firewall

 Legacy User Stylesheets

   Active: false
   Stylesheets: No stylesheets found

 Graphics

     Features
     Compositing: WebRender Layer Compositor
     Font Visibility Debug Info: Windows Platform
     Asynchronous Pan/Zoom: wheel input enabled; scrollbar drag enabled; keyboard enabled; autoscroll enabled; smooth pinch-zoom enabled
     WebGL 1 Driver WSI Info: outOfProcess: false

inProcess: true EGL_VENDOR: Google Inc. (NVIDIA) EGL_VERSION: 1.5 (ANGLE 2.1.19751 git hash: b0098a1ebdb0) EGL_EXTENSIONS: EGL_EXT_create_context_robustness EGL_ANGLE_d3d_share_handle_client_buffer EGL_ANGLE_d3d_texture_client_buffer EGL_ANGLE_surface_d3d_texture_2d_share_handle EGL_ANGLE_query_surface_pointer EGL_ANGLE_window_fixed_size EGL_ANGLE_keyed_mutex EGL_ANGLE_surface_orientation EGL_ANGLE_direct_composition EGL_ANGLE_windows_ui_composition EGL_NV_post_sub_buffer EGL_KHR_create_context EGL_KHR_image EGL_KHR_image_base EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_cubemap_image EGL_KHR_gl_renderbuffer_image EGL_KHR_get_all_proc_addresses EGL_KHR_stream EGL_KHR_stream_consumer_gltexture EGL_NV_stream_consumer_gltexture_yuv EGL_ANGLE_stream_producer_d3d_texture EGL_ANGLE_create_context_webgl_compatibility EGL_CHROMIUM_create_context_bind_generates_resource EGL_CHROMIUM_sync_control EGL_EXT_pixel_format_float EGL_KHR_surfaceless_context EGL_ANGLE_display_texture_share_group EGL_ANGLE_display_semaphore_share_group EGL_ANGLE_create_context_client_arrays EGL_ANGLE_program_cache_control EGL_ANGLE_robust_resource_initialization EGL_ANGLE_create_context_extensions_enabled EGL_ANDROID_blob_cache EGL_ANDROID_recordable EGL_ANGLE_image_d3d11_texture EGL_ANGLE_create_context_backwards_compatible EGL_KHR_no_config_context EGL_KHR_create_context_no_error EGL_KHR_reusable_sync EGL_EXTENSIONS(nullptr): EGL_EXT_client_extensions EGL_EXT_device_query EGL_EXT_platform_base EGL_EXT_platform_device EGL_ANGLE_platform_angle EGL_ANGLE_platform_angle_d3d EGL_ANGLE_platform_angle_d3d11on12 EGL_ANGLE_platform_angle_device_id EGL_ANGLE_device_creation EGL_ANGLE_device_creation_d3d11 EGL_ANGLE_experimental_present_path EGL_KHR_client_get_all_proc_addresses EGL_KHR_debug EGL_ANGLE_feature_control

     WebGL 1 Driver Renderer: Google Inc. (NVIDIA) -- ANGLE (NVIDIA, NVIDIA GeForce GTX 1650 Direct3D11 vs_5_0 ps_5_0, D3D11-32.0.15.9186)
     WebGL 1 Driver Version: OpenGL ES 3.0.0 (ANGLE 2.1.19751 git hash: b0098a1ebdb0)
     WebGL 1 Driver Extensions: GL_AMD_performance_monitor GL_ANGLE_base_vertex_base_instance GL_ANGLE_base_vertex_base_instance_shader_builtin GL_ANGLE_client_arrays GL_ANGLE_copy_texture_3d GL_ANGLE_depth_texture GL_ANGLE_framebuffer_blit GL_ANGLE_framebuffer_multisample GL_ANGLE_get_serialized_context_string GL_ANGLE_get_tex_level_parameter GL_ANGLE_instanced_arrays GL_ANGLE_lossy_etc_decode GL_ANGLE_memory_size GL_ANGLE_multi_draw GL_ANGLE_multiview_multisample GL_ANGLE_pack_reverse_row_order GL_ANGLE_program_cache_control GL_ANGLE_provoking_vertex GL_ANGLE_request_extension GL_ANGLE_robust_client_memory GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5 GL_ANGLE_texture_multisample GL_ANGLE_texture_usage GL_ANGLE_translated_shader_source GL_CHROMIUM_bind_generates_resource GL_CHROMIUM_bind_uniform_location GL_CHROMIUM_copy_compressed_texture GL_CHROMIUM_copy_texture GL_CHROMIUM_lose_context GL_CHROMIUM_sync_query GL_EXT_EGL_image_external_wrap_modes GL_EXT_base_instance GL_EXT_blend_func_extended GL_EXT_blend_minmax GL_EXT_clip_control GL_EXT_color_buffer_float GL_EXT_color_buffer_half_float GL_EXT_debug_label GL_EXT_debug_marker GL_EXT_discard_framebuffer GL_EXT_disjoint_timer_query GL_EXT_draw_buffers GL_EXT_draw_buffers_indexed GL_EXT_draw_elements_base_vertex GL_EXT_float_blend GL_EXT_frag_depth GL_EXT_instanced_arrays GL_EXT_map_buffer_range GL_EXT_multi_draw_indirect GL_EXT_multisampled_render_to_texture GL_EXT_occlusion_query_boolean GL_EXT_read_format_bgra GL_EXT_robustness GL_EXT_sRGB GL_EXT_shader_texture_lod GL_EXT_texture_compression_bptc GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_rgtc GL_EXT_texture_compression_s3tc_srgb GL_EXT_texture_filter_anisotropic GL_EXT_texture_format_BGRA8888 GL_EXT_texture_norm16 GL_EXT_texture_rg GL_EXT_texture_storage GL_EXT_texture_type_2_10_10_10_REV GL_EXT_unpack_subimage GL_KHR_debug GL_KHR_parallel_shader_compile GL_KHR_robust_buffer_access_behavior GL_NV_EGL_stream_consumer_external GL_NV_fence GL_NV_framebuffer_blit GL_NV_pack_subimage GL_NV_pixel_buffer_object GL_OES_EGL_image GL_OES_EGL_image_external GL_OES_EGL_image_external_essl3 GL_OES_compressed_EAC_R11_signed_texture GL_OES_compressed_EAC_R11_unsigned_texture GL_OES_compressed_EAC_RG11_signed_texture GL_OES_compressed_EAC_RG11_unsigned_texture GL_OES_compressed_ETC2_RGB8_texture GL_OES_compressed_ETC2_RGBA8_texture GL_OES_compressed_ETC2_punchthroughA_RGBA8_texture GL_OES_compressed_ETC2_punchthroughA_sRGB8_alpha_texture GL_OES_compressed_ETC2_sRGB8_alpha8_texture GL_OES_compressed_ETC2_sRGB8_texture GL_OES_depth24 GL_OES_depth32 GL_OES_draw_buffers_indexed GL_OES_draw_elements_base_vertex GL_OES_element_index_uint GL_OES_fbo_render_mipmap GL_OES_get_program_binary GL_OES_mapbuffer GL_OES_packed_depth_stencil GL_OES_rgb8_rgba8 GL_OES_standard_derivatives GL_OES_surfaceless_context GL_OES_texture_border_clamp GL_OES_texture_float GL_OES_texture_float_linear GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_OES_texture_npot GL_OES_texture_stencil8 GL_OES_vertex_array_object GL_OVR_multiview GL_OVR_multiview2 GL_WEBGL_video_texture
     WebGL 1 Extensions: ANGLE_instanced_arrays EXT_blend_minmax EXT_color_buffer_half_float EXT_float_blend EXT_frag_depth EXT_shader_texture_lod EXT_sRGB EXT_texture_compression_bptc EXT_texture_compression_rgtc EXT_texture_filter_anisotropic MOZ_debug OES_element_index_uint OES_fbo_render_mipmap OES_standard_derivatives OES_texture_float OES_texture_float_linear OES_texture_half_float OES_texture_half_float_linear OES_vertex_array_object WEBGL_color_buffer_float WEBGL_compressed_texture_s3tc WEBGL_compressed_texture_s3tc_srgb WEBGL_debug_renderer_info WEBGL_debug_shaders WEBGL_depth_texture WEBGL_draw_buffers WEBGL_lose_context WEBGL_provoking_vertex
     WebGL 2 Driver WSI Info: outOfProcess: false

inProcess: true EGL_VENDOR: Google Inc. (NVIDIA) EGL_VERSION: 1.5 (ANGLE 2.1.19751 git hash: b0098a1ebdb0) EGL_EXTENSIONS: EGL_EXT_create_context_robustness EGL_ANGLE_d3d_share_handle_client_buffer EGL_ANGLE_d3d_texture_client_buffer EGL_ANGLE_surface_d3d_texture_2d_share_handle EGL_ANGLE_query_surface_pointer EGL_ANGLE_window_fixed_size EGL_ANGLE_keyed_mutex EGL_ANGLE_surface_orientation EGL_ANGLE_direct_composition EGL_ANGLE_windows_ui_composition EGL_NV_post_sub_buffer EGL_KHR_create_context EGL_KHR_image EGL_KHR_image_base EGL_KHR_gl_texture_2D_image EGL_KHR_gl_texture_cubemap_image EGL_KHR_gl_renderbuffer_image EGL_KHR_get_all_proc_addresses EGL_KHR_stream EGL_KHR_stream_consumer_gltexture EGL_NV_stream_consumer_gltexture_yuv EGL_ANGLE_stream_producer_d3d_texture EGL_ANGLE_create_context_webgl_compatibility EGL_CHROMIUM_create_context_bind_generates_resource EGL_CHROMIUM_sync_control EGL_EXT_pixel_format_float EGL_KHR_surfaceless_context EGL_ANGLE_display_texture_share_group EGL_ANGLE_display_semaphore_share_group EGL_ANGLE_create_context_client_arrays EGL_ANGLE_program_cache_control EGL_ANGLE_robust_resource_initialization EGL_ANGLE_create_context_extensions_enabled EGL_ANDROID_blob_cache EGL_ANDROID_recordable EGL_ANGLE_image_d3d11_texture EGL_ANGLE_create_context_backwards_compatible EGL_KHR_no_config_context EGL_KHR_create_context_no_error EGL_KHR_reusable_sync EGL_EXTENSIONS(nullptr): EGL_EXT_client_extensions EGL_EXT_device_query EGL_EXT_platform_base EGL_EXT_platform_device EGL_ANGLE_platform_angle EGL_ANGLE_platform_angle_d3d EGL_ANGLE_platform_angle_d3d11on12 EGL_ANGLE_platform_angle_device_id EGL_ANGLE_device_creation EGL_ANGLE_device_creation_d3d11 EGL_ANGLE_experimental_present_path EGL_KHR_client_get_all_proc_addresses EGL_KHR_debug EGL_ANGLE_feature_control

     WebGL 2 Driver Renderer: Google Inc. (NVIDIA) -- ANGLE (NVIDIA, NVIDIA GeForce GTX 1650 Direct3D11 vs_5_0 ps_5_0, D3D11-32.0.15.9186)
     WebGL 2 Driver Version: OpenGL ES 3.0.0 (ANGLE 2.1.19751 git hash: b0098a1ebdb0)
     WebGL 2 Driver Extensions: GL_AMD_performance_monitor GL_ANGLE_base_vertex_base_instance GL_ANGLE_base_vertex_base_instance_shader_builtin GL_ANGLE_client_arrays GL_ANGLE_copy_texture_3d GL_ANGLE_depth_texture GL_ANGLE_framebuffer_blit GL_ANGLE_framebuffer_multisample GL_ANGLE_get_serialized_context_string GL_ANGLE_get_tex_level_parameter GL_ANGLE_instanced_arrays GL_ANGLE_lossy_etc_decode GL_ANGLE_memory_size GL_ANGLE_multi_draw GL_ANGLE_multiview_multisample GL_ANGLE_pack_reverse_row_order GL_ANGLE_program_cache_control GL_ANGLE_provoking_vertex GL_ANGLE_request_extension GL_ANGLE_robust_client_memory GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5 GL_ANGLE_texture_multisample GL_ANGLE_texture_usage GL_ANGLE_translated_shader_source GL_CHROMIUM_bind_generates_resource GL_CHROMIUM_bind_uniform_location GL_CHROMIUM_copy_compressed_texture GL_CHROMIUM_copy_texture GL_CHROMIUM_lose_context GL_CHROMIUM_sync_query GL_EXT_EGL_image_external_wrap_modes GL_EXT_base_instance GL_EXT_blend_func_extended GL_EXT_blend_minmax GL_EXT_clip_control GL_EXT_color_buffer_float GL_EXT_color_buffer_half_float GL_EXT_debug_label GL_EXT_debug_marker GL_EXT_discard_framebuffer GL_EXT_disjoint_timer_query GL_EXT_draw_buffers GL_EXT_draw_buffers_indexed GL_EXT_draw_elements_base_vertex GL_EXT_float_blend GL_EXT_frag_depth GL_EXT_instanced_arrays GL_EXT_map_buffer_range GL_EXT_multi_draw_indirect GL_EXT_multisampled_render_to_texture GL_EXT_occlusion_query_boolean GL_EXT_read_format_bgra GL_EXT_robustness GL_EXT_sRGB GL_EXT_shader_texture_lod GL_EXT_texture_compression_bptc GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_rgtc GL_EXT_texture_compression_s3tc_srgb GL_EXT_texture_filter_anisotropic GL_EXT_texture_format_BGRA8888 GL_EXT_texture_norm16 GL_EXT_texture_rg GL_EXT_texture_storage GL_EXT_texture_type_2_10_10_10_REV GL_EXT_unpack_subimage GL_KHR_debug GL_KHR_parallel_shader_compile GL_KHR_robust_buffer_access_behavior GL_NV_EGL_stream_consumer_external GL_NV_fence GL_NV_framebuffer_blit GL_NV_pack_subimage GL_NV_pixel_buffer_object GL_OES_EGL_image GL_OES_EGL_image_external GL_OES_EGL_image_external_essl3 GL_OES_compressed_EAC_R11_signed_texture GL_OES_compressed_EAC_R11_unsigned_texture GL_OES_compressed_EAC_RG11_signed_texture GL_OES_compressed_EAC_RG11_unsigned_texture GL_OES_compressed_ETC2_RGB8_texture GL_OES_compressed_ETC2_RGBA8_texture GL_OES_compressed_ETC2_punchthroughA_RGBA8_texture GL_OES_compressed_ETC2_punchthroughA_sRGB8_alpha_texture GL_OES_compressed_ETC2_sRGB8_alpha8_texture GL_OES_compressed_ETC2_sRGB8_texture GL_OES_depth24 GL_OES_depth32 GL_OES_draw_buffers_indexed GL_OES_draw_elements_base_vertex GL_OES_element_index_uint GL_OES_fbo_render_mipmap GL_OES_get_program_binary GL_OES_mapbuffer GL_OES_packed_depth_stencil GL_OES_rgb8_rgba8 GL_OES_standard_derivatives GL_OES_surfaceless_context GL_OES_texture_border_clamp GL_OES_texture_float GL_OES_texture_float_linear GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_OES_texture_npot GL_OES_texture_stencil8 GL_OES_vertex_array_object GL_OVR_multiview GL_OVR_multiview2 GL_WEBGL_video_texture
     WebGL 2 Extensions: EXT_color_buffer_float EXT_float_blend EXT_texture_compression_bptc EXT_texture_compression_rgtc EXT_texture_filter_anisotropic MOZ_debug OES_draw_buffers_indexed OES_texture_float_linear OVR_multiview2 WEBGL_compressed_texture_s3tc WEBGL_compressed_texture_s3tc_srgb WEBGL_debug_renderer_info WEBGL_debug_shaders WEBGL_lose_context WEBGL_provoking_vertex
     Target Frame Rate: 60
     DirectWrite: true (10.0.26100.8115)

     GPU #1
     Active: Yes
     Description: NVIDIA GeForce GTX 1650
     Vendor ID: 0x10de
     Device ID: 0x1f82
     Driver Version: 32.0.15.9186
     Driver Date: 1-20-2026
     Drivers: C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispig.inf_amd64_f4c7a2fd13e0f763\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispig.inf_amd64_f4c7a2fd13e0f763\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispig.inf_amd64_f4c7a2fd13e0f763\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispig.inf_amd64_f4c7a2fd13e0f763\nvldumdx.dll C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispig.inf_amd64_f4c7a2fd13e0f763\nvldumd.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispig.inf_amd64_f4c7a2fd13e0f763\nvldumd.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispig.inf_amd64_f4c7a2fd13e0f763\nvldumd.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispig.inf_amd64_f4c7a2fd13e0f763\nvldumd.dll
     Subsys ID: 3fcb1458
     RAM: 4096

     GPU #2
     Active: No
     Description: AMD Radeon(TM) Graphics
     Vendor ID: 0x1002
     Device ID: 0x1638
     Driver Version: 31.0.12027.9001
     Driver Date: 3-30-2023
     Drivers: aticfx64 aticfx64 aticfx64 amdxc64 aticfx32 aticfx32 aticfx32 amdxc32 atiumd64 atidxx64 atidxx64 atiumdag atidxx32 atidxx32 atiumdva atiumd6a
     Subsys ID: 0000000c
     RAM: 512

     Diagnostics
     AzureCanvasBackend: skia
     AzureCanvasBackend (UI Process): skia
     AzureContentBackend: skia
     AzureContentBackend (UI Process): skia
     AzureFallbackCanvasBackend (UI Process): skia
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     Display0: 1920x1080@60Hz scales:1.000000|1.100000
     DisplayCount: 1
     HardwareStretching: both=1 window-only=0 full-screen-only=0 none=0 error=0
     OverlaySupport: NV12=Scaling YUV2=Scaling BGRA8=Scaling RGB10A2=Scaling RGBA16F=Scaling VpSR=Supported VpAutoHDR=Supported HwOverlayHDR=Supported
     SwapChainTearingSupport: Supported
     GPUProcessPid: 17544
     Window Device Pixel Ratios: 1.0909090909090908
     ClearType Parameters: Gamma: 1.8 Pixel Structure: RGB ClearType Level: 100 Enhanced Contrast: 50
     Font Visibility Debug Info: Windows Platform
     WebGPU Default Adapter: [object Object]
     WebGPU Fallback Adapter: [object Object]

     Decision Log
     HW_COMPOSITING: available by default
     D3D11_COMPOSITING: available by default
     D3D11_HW_ANGLE: available by default
     GPU_PROCESS: available by default
     WEBRENDER: available by default
     WEBRENDER_COMPOSITOR: available by default
     WEBRENDER_PARTIAL: available by default
     WEBRENDER_SHADER_CACHE: available by default
     WEBRENDER_OPTIMIZED_SHADERS: available by default
     WEBRENDER_ANGLE: available by default
     WEBRENDER_DCOMP_PRESENT: available by default
     WEBRENDER_SCISSORED_CACHE_CLEARS: available by default
     WEBGPU: available by default
     WINDOW_OCCLUSION: available by default
     HARDWARE_VIDEO_DECODING: available by default
     HARDWARE_VIDEO_ENCODING: available by default
     VIDEO_HARDWARE_OVERLAY: available by default
     VIDEO_SOFTWARE_OVERLAY: available by default
     HW_DECODED_VIDEO_ZERO_COPY: available by default
     VP8_HW_DECODE: available by default
     VP9_HW_DECODE: available by default
     REUSE_DECODER_DEVICE: available by default
     BACKDROP_FILTER: available by default
     CANVAS_RENDERER_THREAD: available by default
     ACCELERATED_CANVAS2D: available by default
     H264_HW_DECODE: available by default
     AV1_HW_DECODE: available by default
     HEVC_HW_DECODE: available by default
     VP8_HW_ENCODE: available by default
     VP9_HW_ENCODE: available by default
     H264_HW_ENCODE: available by default
     AV1_HW_ENCODE: available by default
     HEVC_HW_ENCODE: available by default
     GL_NORM16_TEXTURES: available by default
     WEBGPU_EXTERNAL_TEXTURE: available by default
     WEBGL: available by default

   Crash Guard Disabled Features

   Workarounds

   Failure Log

 Media

     Audio Backend: wasapi
     Max Channels: 2
     Preferred Sample Rate: 48000
     Roundtrip latency (standard deviation): 47.33ms (2.87)

     Output Devices

       Name
       Group
       Vendor
       State
       Preferred
       Format
       Channels
       Rate
       Latency

       Headphones (High Definition Audio Device)
       HDAUDIO\FUNC_01&VEN_10EC&DEV_0892&SUBSYS_18496893&REV_1003\5&36282413&0&0001
       Enabled
       All
       default: F32LE, support: S16LE F32LE
       2
       default: 48000, support: 48000 - 48000
       128 - 480

       Speakers (High Definition Audio Device)
       HDAUDIO\FUNC_01&VEN_10EC&DEV_0892&SUBSYS_18496893&REV_1003\5&36282413&0&0001
       Enabled
       None
       default: F32LE, support: S16LE F32LE
       2
       default: 48000, support: 48000 - 48000
       128 - 480

       HP VH240a (NVIDIA High Definition Audio)
       HDAUDIO\FUNC_01&VEN_10DE&DEV_0094&SUBSYS_14583FCB&REV_1001\5&54f6981&0&0001
       Enabled
       None
       default: F32LE, support: S16LE F32LE
       2
       default: 48000, support: 48000 - 48000
       144 - 480

     Input Devices

       Name
       Group
       Vendor
       State
       Preferred
       Format
       Channels
       Rate
       Latency

       Microphone (Logi C270 HD WebCam)
       USB\VID_046D&PID_0825&MI_02\7&30481a09&0&0002
       Enabled
       All
       default: F32LE, support: S16LE F32LE
       1
       default: 48000, support: 48000 - 48000
       144 - 480

     Media Capabilities

     Enumerate database

 Environment Variables

   MOZ_CRASHREPORTER_DATA_DIRECTORY: C:\Users\Owner\AppData\Roaming\Thunderbird\Crash Reports
   MOZ_CRASHREPORTER_EVENTS_DIRECTORY: C:\Users\Owner\AppData\Roaming\Thunderbird\Profiles\3ll5et7a.default-release\crashes\events
   MOZ_CRASHREPORTER_PING_DIRECTORY: C:\Users\Owner\AppData\Roaming\Thunderbird\Pending Pings

 Important Modified Preferences

   browser.search.region: US
   doh-rollout.home-region: US
   extensions.lastAppVersion: 150.0
   idle.lastDailyNotification: 1777316640
   media.gmp.storage.version.observed: 1
   media.hardware-video-decoding.failed: false
   network.cookie.CHIPS.lastMigrateDatabase: 2
   places.database.lastMaintenance: 1777316640
   privacy.bounceTrackingProtection.hasMigratedUserActivationData: true
   privacy.purge_trackers.date_in_cookie_database: 0
   privacy.trackingprotection.allow_list.hasMigratedCategoryPrefs: true
   storage.vacuum.last.content-prefs.sqlite: 1774975606
   storage.vacuum.last.index: 1
   storage.vacuum.last.places.sqlite: 1776113135
   ui.osk.debug.keyboardDisplayReason: IKPOS: Touch screen not found.

 Important Locked Preferences

   fission.autostart.session: true
   media.utility-process.enabled: true
   signon.management.page.os-auth.locked.enabled: false

 Places Database

 Accessibility

   Activated: false
   Prevent Accessibility: 0
   Accessible Handler Used:
   Accessibility Instantiator:

 Library Versions

     Expected minimum version
     Version in use

     NSPR
     4.38.2
     4.38.2

     NSS
     3.122.1
     3.122.1

     NSSSMIME
     3.122.1
     3.122.1

     NSSSSL
     3.122.1
     3.122.1

     NSSUTIL
     3.122.1
     3.122.1

 Sandbox

   Content Process Sandbox Level: 7
   Effective Content Process Sandbox Level: 7
   Win32k Lockdown State for Content Process: Win32k Lockdown enabled -- default value is true
   GPU Process Sandbox Level: 2

 Startup Cache

   Disk Cache Path: C:\Users\Owner\AppData\Local\Thunderbird\Profiles\3ll5et7a.default-release\startupCache\startupCache.8.little
   Ignore Disk Cache: false
   Found Disk Cache on Init: true
   Wrote to Disk Cache: false

 Internationalization & Localization

     Application Settings
     Requested Locales: ["en-US"]
     Available Locales: ["en-US"]
     App Locales: ["en-US"]
     Regional Preferences: ["en-US"]
     Default Locale: "en-US"

     Operating System
     System Locales: ["en-US"]
     Regional Preferences: ["en-US"]

 Remote Debugging (Chromium Protocol)

   Accepting Connections:
   URL:

 Printing

 Modified print settings

 print_printer: HP LaserJet P1006

Hello!

I have installed Thunderbird 150.0 on an Ubuntu 24.04 desktop using a downloaded TAR installation method. I have done this, as I use OWL for Microsoft Exchange accounts. OWL works better with the current version of Thunderbird.

I have created a desktop launcher (thunderbird-150.desktop), which works fine, except that the software icon is the generic Gnome gear. I have read that specifying the WMClass correctly in the launcher file (in /usr/share/applications) is the solution, but this does not seem to work. It is current set as WMClass=thunderbird. I have also noticed that the /opt/thunderbird/icons folder does not contain the Thunderbird icon.

Can anyone help me to fix this annoying issue?

Many thanks!

I've never had a problem before but suddenly I'm getting an error when I try to log into one of my accounts telling me "The STAT command did not succeed. Error getting message number and sizes. Mail server pop.gmail.com responded [AUTH] invalid credentials. Why is this happening now?

I have 4 other accounts on Thunderbird and this is the only one that has started giving me problems.

I recently created a Google Workspace account. There, I have a user profile with a custom email address. I've set up the new account in Thunderbird, and it is working as expected. If I send a message from my "external" account to the workspace account, it arrives, and I'm able to reply back.

One feature of Google Workspace is what they call "alternate email" addresses. They sort of work as an alias for the native address. I have created one such alternate. If I send a message from my external account to the alias, it arrives correctly in the workspace account. However, when I reply from the workspace account, it does not go back to the originating address, but instead it is addressed back to the alias. If I repeat the experiment from the Gmail web interface, it replies to the correct address.

I've downloaded all the headers, and the Return-Path tag is correct. I can provide the full header if needed.

It feels like there is an invisible forwarding action to get from the alias to the workspace account, and that the reply action is incorrectly finding the interim alias. But that doesn't really seem to be what I see in the headers - although I'm probably not the most expert reader of those.

And it isn't necessarily a Thunderbird issue. I can see that there could be something going on with Google. But this is a good place to start...  :-)

I have removed the drive from the computer that will not boot up. I hope to be able to transfer my "profile" to my new computer from that drive. I understand that I will need to have the same version of Thunderbird installed on my new computer in order to transfer my "profile". Since I can't access Thunderbird on my "crashed" computer, how can I know what version I had installed previously? How do I find where to load that version on my new computer?

Thunderbird causes my machine to 'hang' from time to time,

1. often for up to a second and usually a number of times in quick succession on each ocasion. Sometimes this happens frequently - say every 5 or 10 minutes - sometimes only after an hour or more since the past occurrance.

2. My machine hangs completely - nothing will work, mouse, keyboard, sound, other apps etc. If I happen to be typing (into any app - including Thunderbird - when this happens, input ceases, the cursor freezes and - if the problem persists for a second or two, Windows reports "[app] is not responding"

3. I cannot be certain, but I believe the problem occurs whilst messages are being retrieved.

This is a very serious problem as it means that I can never leave TB running as the problems it causes are not acceptable.

4. This means I cannot deal with incoming messages without periodically re-starting TB - which is an utter PIA.

I am running Win 11 Professional on a 2-year old machine with 64 Gb of memory. I have run TB in Troubleshoot mode, I have confirmed that the problem occurs regardless or whatever other apps are running (or none) and I have proven conclusively that no other app causes any kind of similar problem.

Looking forward yto hearing if others have had the same issue and what can be done about it.

Using Thunderbird forever, on my PC and also on my Android. On my PC sending messages stopped working "suddenly". (That means I did not change anything in Thunderbird. Windows related settings - who knows.)

__________________ Sending of the message failed. The message could not be sent because connecting to Outgoing server (SMTP) smtp.ionos.de failed. The server may be unavailable or is refusing SMTP connections. Please verify that your Outgoing server (SMTP) settings are correct and try again. __________________

I have checked the SMTP server settings again, but it didn't solve the problem. I have changed my password of my e-mail account to anew one, reinstalled Thunderbird and recreated my account, but without anything changing. Receiving works, sending does not. Tried to install Outlook (sorry, just temporarily, I hope :) ) and there everything works just fine.

Maybe some Windows Firewall setting? Didn't find anything that seems to prevent Thunderbird from sending thou. Do you have any idea?

I wish to move away from MS outlook. I have installed Thunderbird desktop email client to my Imac apple desk top computer. When I run the installation software and input my gmail account details the system responds with an error "Authentication error". can you please help me to reconfigure the set up to resolve this problem. Kind regards Terry Davies.

Since April 9, 6:14 PM CDT, most folders (e.g., Drafts, Templates, Sent) on my primary laptop in my primary POP email account, [edited]@bdcusa.com, have disappeared; and ALL SUBfolders in my Inbox have disappeared. Over 185,000 emails have vanished overnight!

On my primary laptop, I'm using Thunderbird 149.0.1 (64-bit) on the release update channel, still running 64-bit Windows 10 Professional, and have nothing backed up to the cloud.

Fortunately, on my secondary laptop, I'm using Thunderbird 115.18.0 (32-bit) on the esr update channel, running 32-bit Windows 7 Professional. I say, "fortunately," because ALL folders and emails are still there, so I know they haven't been vaporized!

How do I return all folders and emails for this email account to visibility and access on my primary laptop? Detailed directions appreciated.

A few weeks ago, my Thunderbird went very, very slow. It has from time to time crashed. Now this happens whenever I start a new email. If I downloaded Firefox, would that help?

So I have Thunderbird set to autosave every 5 mins.

I was drafting an email, where I had written quite a lot of text (as a reply) and for some reason my text went missing and there was no undo in edits

So I quit and went to drafts, nothing there.

I checked and autosave is on for 5 mins.

hit reply again. typed in some text, set a timer for 12 mins, quit.

Again, no save.

So why is "Auto Save ever " x mins not working?

I have tried using both a zip and unzip folders along with a backup folder for moving an export of the calendar. I export file is larger than 2GB and i find no way to make it smaller. or i can not find a way to export a pure csv file. All the above fails on import. please advise

Hello, I use Thunderbird 140.10.0esr, installed as Flathub flatpak on Fedora Linux Kinoite. I just found out I have a folder in /home/<user>/.var/app/org.mozilla.Thunderbird/.thunderbird/1tniiwpw.default-release-1/storage/default/ called https+++www.googletagmanager.com. I wonder why I have this and what it does in the Thunderbird settings. It has something to do with Google's LLC, but I don't want to be part of that. I removed the folder completely and hope it won't come back, but I wonder. Who can tell me something more about this folder? Thanks.

I had a gmail email in my Thunderbird, during setup I had to get permission from gmail to connect using google api. All was good. I have since deleted the account from Thunderbird, restarted app and pc many many times and yet no matter what i do , thunderbird continuously brings up a message "Verify its you, Google need to verify its yo" like its still tryijng to connect. I have tried everyhting all suggestions on the internet and it still asks me as if the act was still attached. Its SO annoying as it pops up all the time. Please help me get rid of this

I tried to send something and Thunderbird blocked it with yellow box on the bottom i could not d find out where or how to remove or unblock t and i also get it in Drafts too but how do i remove in Thunderbird please tell me where and how to unblock attachment remove the yellow box to unlock something please

something about remote content  i think

Email older than several weeks in mail subfolders is blank in Thunderbird and looks like binary within buffer D:\WORKSPACE\Computer Tech\Config & Buffers\Thunderbird Stuff\Profiles\dq1ljd8g.default\Mail\Inbox Archive I assume that the mail resembling binary has been compacted, but it appears that Thunderbird cannot un-compact the messages. Need some help, please.

2026-04-25 SAT 14:45 BST I have boujht a DigiCert S/MIME Class 1 certificate from thesslstore, but I have not yet got it. They sent me 3 .crt files, but I have not understood how to use them. I hope someone can explain the problem and/or suggest what I can do about it please ? I do not remember having this sort of problem in previous years.