UI often freezes while downloading new mail or clicking emails
Categories
(Thunderbird :: Untriaged, defect)
Tracking
(Not tracked)
People
(Reporter: mozilla, Unassigned)
Details
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36
Steps to reproduce:
- Click download mail button to start syncing IMAP
- Click on an email message or anything really
Actual results:
The UI freezes, windows says "Thunderbird not responding". Sometimes for several seconds to 30 seconds. It's totally random when it happens, not sure if it's caused by downloading new mail or not.
Application Basics
Name: Thunderbird
Version: 128.5.2esr
Build ID: 20241210220830
Distribution ID:
Update Channel: esr
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:128.0) Gecko/20100101 Thunderbird/128.5.2
OS: Windows_NT 10.0 19045
OS Theme:
Launcher Process: Enabled
Multiprocess Windows: 0/0
Fission Windows: 0/0
Enabled by default
Remote Processes: 3
Enterprise Policies: Inactive
Google Location Service Key: Missing
Google Safebrowsing Key: Missing
Mozilla Location Service Key: Missing
Safe Mode: true
Memory Size (RAM): 11.9 GB
Disk Space Available: 55.7 GB
Mail and News Accounts
account1:
INCOMING: account1, , (imap) imap.ionos.com:993, 3, passwordCleartext
OUTGOING: , smtp.ionos.com:465, 3, passwordCleartext, true
account2:
INCOMING: account2, , (none) Local Folders, plain, passwordCleartext
account3:
INCOMING: account3, , (imap) imap.gmail.com:993, 3, OAuth2
OUTGOING: , smtp.gmail.com:465, 3, OAuth2, true
account4:
INCOMING: account4, , (imap) imap.gmail.com:993, 3, OAuth2
OUTGOING: , smtp.gmail.com:465, 3, OAuth2, true
Libraries
Library
Status
Expected minimum version
Version in use
Path
RNP (OpenPGP)
OK
0.17.1
0.17.1.MZLA.128.5.2esr.botan
C:\Program Files\Mozilla Thunderbird\rnp.dll
OTR
Failed to load. OTR chat encryption will not work.
-
-
-
Calendar Settings
Home
Name
Value
Name:
Type: storage
Disabled: true
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
Isolated Web Content: 1
GPU: 1
RDD: 1
Add-ons
Name
Type
Version
Enabled
ID
Amazon.com
extension
1.1
true
amazondotcom@search.mozilla.org
Bing
extension
1.0
true
bing@search.mozilla.org
DuckDuckGo
extension
1.0
true
ddg@search.mozilla.org
Google
extension
1.0
true
google@search.mozilla.org
Wikipedia (en)
extension
1.0
true
wikipedia@search.mozilla.org
System theme — auto
theme
1.3
true
default-theme@mozilla.org
Dark
theme
1.3
false
thunderbird-compact-dark@mozilla.org
Light
theme
1.3
false
thunderbird-compact-light@mozilla.org
Security Software
Type: Name
Antivirus: Microsoft Defender Antivirus
Antispyware:
Firewall: Windows Firewall
Legacy User Stylesheets
Active: false
Stylesheets: No stylesheets found
Graphics
Features
Compositing: WebRender (Software)
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: -
WebGL 1 Driver Renderer: WebGL is currently disabled.
WebGL 1 Driver Version: -
WebGL 1 Driver Extensions: -
WebGL 1 Extensions: -
WebGL 2 Driver WSI Info: -
WebGL 2 Driver Renderer: WebGL is currently disabled.
WebGL 2 Driver Version: -
WebGL 2 Driver Extensions: -
WebGL 2 Extensions: -
Target Frame Rate: 60
DirectWrite: true (10.0.19041.4355)
GPU #1
Active: Yes
Description: NVIDIA GeForce RTX 2060
Vendor ID: 0x10de
Device ID: 0x1f11
Driver Version: 31.0.15.1640
Driver Date: 6-6-2022
Drivers: C:\Windows\System32\DriverStore\FileRepository\nvlti.inf_amd64_684a7b4cdb809f6b\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvlti.inf_amd64_684a7b4cdb809f6b\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvlti.inf_amd64_684a7b4cdb809f6b\nvldumdx.dll,C:\Windows\System32\DriverStore\FileRepository\nvlti.inf_amd64_684a7b4cdb809f6b\nvldumdx.dll C:\Windows\System32\DriverStore\FileRepository\nvlti.inf_amd64_684a7b4cdb809f6b\nvldumd.dll,C:\Windows\System32\DriverStore\FileRepository\nvlti.inf_amd64_684a7b4cdb809f6b\nvldumd.dll,C:\Windows\System32\DriverStore\FileRepository\nvlti.inf_amd64_684a7b4cdb809f6b\nvldumd.dll,C:\Windows\System32\DriverStore\FileRepository\nvlti.inf_amd64_684a7b4cdb809f6b\nvldumd.dll
Subsys ID: 3ffd17aa
RAM: 6144
GPU #2
Active: No
RAM: 0
Diagnostics
AzureCanvasBackend: skia
AzureCanvasBackend (UI Process): skia
AzureContentBackend: skia
AzureContentBackend (UI Process): skia
AzureFallbackCanvasBackend (UI Process): skia
CMSOutputProfile: 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
Display0: 1920x1080@60Hz scales:1.000000|1.250000
DisplayCount: 1
HardwareStretching: both=1 window-only=0 full-screen-only=0 none=0 error=0
GPUProcessPid: 2352
Window Device Pixel Ratios: 1.25
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 defaultblocked by runtime: Acceleration blocked by safe-mode
D3D11_COMPOSITING: unavailable by default: Hardware compositing is disabled
DIRECT2D: unavailable by default: Direct2D requires Direct3D 11 compositing
D3D11_HW_ANGLE: unavailable by default: D3D11 compositing is disableddisabled by env: D3D11 compositing is disabled
GPU_PROCESS: available by default
WEBRENDER: available by defaultunavailable-in-safe-mode by runtime: Safe-mode is enabled
WEBRENDER_COMPOSITOR: available by defaultunavailable by runtime: No DirectComposition usage
WEBRENDER_PARTIAL: available by default
WEBRENDER_SHADER_CACHE: available by defaultunavailable by runtime: WebRender disabled
WEBRENDER_OPTIMIZED_SHADERS: available by defaultunavailable by runtime: WebRender disabled
WEBRENDER_ANGLE: available by defaultunavailable-no-angle by runtime: ANGLE is disabled
WEBRENDER_DCOMP_PRESENT: available by defaultunavailable by runtime: Requires ANGLE
WEBRENDER_SCISSORED_CACHE_CLEARS: available by default
WEBGPU: available by defaultblocked by runtime: WebGPU cannot be enabled in release or beta
WINDOW_OCCLUSION: 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: disabled by default: Disabled by defaultblocked by env: Disabled by Software WebRenderfailed by runtime: Disabled with non-zero canvas worker threads
REMOTE_CANVAS: 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): NaNms (NaN)
Output Devices
Name
Group
Vendor
State
Preferred
Format
Channels
Rate
Latency
VZ27A (NVIDIA High Definition Audio)
HDAUDIO\FUNC_01&VEN_10DE&DEV_0093&SUBSYS_17AA3FFD&REV_1001\5&7ac6f31&0&0001
Unplugged
None
default: F32LE, support: S16LE F32LE
2
default: 48000, support: 48000 - 48000
0 - 0
Speakers (Realtek(R) Audio)
HDAUDIO\FUNC_01&VEN_10EC&DEV_0257&SUBSYS_17AA3810&REV_1000\4&2eb7f11b&0&0001
Enabled
All
default: F32LE, support: S16LE F32LE
2
default: 48000, support: 48000 - 48000
144 - 480
Speakers (Steam Streaming Microphone)
ROOT\SteamStreamingMicrophone\0000
Enabled
None
default: F32LE, support: S16LE F32LE
2
default: 48000, support: 48000 - 48000
144 - 480
Speakers (Steam Streaming Speakers)
ROOT\SteamStreamingSpeakers\0000
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 Array (Realtek(R) Audio)
HDAUDIO\FUNC_01&VEN_10EC&DEV_0257&SUBSYS_17AA3810&REV_1000\4&2eb7f11b&0&0001
Enabled
All
default: F32LE, support: S16LE F32LE
2
default: 48000, support: 48000 - 48000
144 - 480
Microphone (Steam Streaming Microphone)
ROOT\SteamStreamingMicrophone\0000
Enabled
None
default: F32LE, support: S16LE F32LE
1
default: 44100, support: 44100 - 44100
133 - 441
Media Capabilities
Enumerate database
Environment Variables
MOZ_APP_RESTART: 1
MOZ_CRASHREPORTER_DATA_DIRECTORY: C:\Users\micro\AppData\Roaming\Thunderbird\Crash Reports
MOZ_CRASHREPORTER_EVENTS_DIRECTORY: C:\Users\micro\AppData\Roaming\Thunderbird\Profiles\amip2brk.default-release\crashes\events
MOZ_CRASHREPORTER_PING_DIRECTORY: C:\Users\micro\AppData\Roaming\Thunderbird\Pending Pings
MOZ_CRASHREPORTER_STRINGS_OVERRIDE: C:\Program Files\Mozilla Thunderbird\crashreporter-override.ini
MOZ_LAUNCHER_PROCESS: 1
Important Modified Preferences
browser.search.region: US
extensions.lastAppVersion: 128.5.2
font.internaluseonly.changed: false
gfx.crash-guard.status.wmfvpxvideo: 2
gfx.crash-guard.wmfvpxvideo.appVersion: 91.13.1
gfx.crash-guard.wmfvpxvideo.deviceID: 0x1f11
gfx.crash-guard.wmfvpxvideo.driverVersion: 31.0.15.1640
idle.lastDailyNotification: 1734155487
media.gmp.storage.version.observed: 1
media.hardware-video-decoding.failed: false
network.trr.blocklist_cleanup_done: true
places.database.lastMaintenance: 1733682859
privacy.bounceTrackingProtection.hasMigratedUserActivationData: true
privacy.purge_trackers.date_in_cookie_database: 0
security.sandbox.content.tempDirSuffix: {372d64cb-fed4-4875-985d-9f713f0e422e}
storage.vacuum.last.content-prefs.sqlite: 1734155490
storage.vacuum.last.index: 1
storage.vacuum.last.places.sqlite: 1733682857
ui.osk.debug.keyboardDisplayReason: IKPOS: Touch screen not found.
Important Locked Preferences
fission.autostart.session: true
Places Database
Accessibility
Activated: false
Prevent Accessibility: 0
Accessible Handler Used:
Accessibility Instantiator:
Library Versions
Expected minimum version
Version in use
NSPR
4.35
4.35
NSS
3.101.1
3.101.1
NSSSMIME
3.101.1
3.101.1
NSSSSL
3.101.1
3.101.1
NSSUTIL
3.101.1
3.101.1
Sandbox
Content Process Sandbox Level: 0
Effective Content Process Sandbox Level: 1
Win32k Lockdown State for Content Process: Win32k Lockdown disabled -- Running in Safe Mode
GPU Process Sandbox Level: 1
Startup Cache
Disk Cache Path: C:\Users\micro\AppData\Local\Thunderbird\Profiles\amip2brk.default-release\startupCache\startupCache.8.little
Ignore Disk Cache: false
Found Disk Cache on Init: false
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: HP5A85BB (HP Photosmart 6520 series)
Expected results:
All download/sync/IO operations should happen off the UI thread.
Description
•