User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:73.0) Gecko/20100101 Firefox/73.0

Steps to reproduce:

1. Open Firefox with several tabs (haven't tested with a single tab, but my guess is its still gonna glitch).
2. Suspend
3. Wake up from suspend
4. Try to resize the Firefox window. - This is the fastest way for me to consistently reproduce it, it takes about a second or two to glitch.

Actual results:

The whole window (viewport?) except the title become either black or transparent (you can see the desktop background).
However, please note that the application is still responsive, I can switch tabs for example (I know that tab switching is working, because the title on the window changes), and there is no crash log. I need to restart firefox in order to get the glitch fixed.

Expected results:

Should resize as normal.

My setup is Ubuntu 18.04, Firefox 73.0, Nvidia GTX 1080, dual monitor setup.

This is what I have in about:support

Application Basics

Name: Firefox
Version: 73.0
Build ID: 20200207195153
User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:73.0) Gecko/20100101 Firefox/73.0
OS: Linux 5.3.0-28-generic
Multiprocess Windows: 1/1 Enabled by default
Remote Processes: 10
Enterprise Policies: Inactive
Google Location Service Key: Found
Google Safebrowsing Key: Found
Mozilla Location Service Key: Missing
Safe Mode: false

Crash Reports for the Last 3 Days

Firefox Features

Name: DoH Roll-Out
Version: 1.3.0
ID: doh-rollout@mozilla.org

Name: Firefox Screenshots
Version: 39.0.0
ID: screenshots@mozilla.org

Name: Form Autofill
Version: 1.0
ID: formautofill@mozilla.org

Name: Web Compat
Version: 7.0.0
ID: webcompat@mozilla.org

Name: WebCompat Reporter
Version: 1.1.0
ID: webcompat-reporter@mozilla.org

Remote Processes

Type: Web Content
Count: 8 / 8

Type: Extension
Count: 1

Type: GPU
Count: 1

Extensions

Name: Amazon.com
Version: 1.1
Enabled: true
ID: amazondotcom@search.mozilla.org

Name: Bing
Version: 1.1
Enabled: true
ID: bing@search.mozilla.org

Name: DuckDuckGo
Version: 1.0
Enabled: true
ID: ddg@search.mozilla.org

Name: eBay
Version: 1.0
Enabled: true
ID: ebay@search.mozilla.org

Name: Enhancer for YouTube™
Version: 2.0.95
Enabled: true
ID: enhancerforyoutube@maximerf.addons.mozilla.org

Name: Facebook Container
Version: 1.4.2
Enabled: true
ID: @contain-facebook

Name: Google
Version: 1.0
Enabled: true
ID: google@search.mozilla.org

Name: JSON Lite
Version: 18.2.0
Enabled: true
ID: {16a49f65-1369-4839-a5ef-db2581e08b16}

Name: Octotree
Version: 3.0.8
Enabled: true
ID: jid1-Om7eJGwA1U8Akg@jetpack

Name: To Google Translate
Version: 3.1
Enabled: true
ID: jid1-93WyvpgvxzGATw@jetpack

Name: Twitter
Version: 1.0
Enabled: true
ID: twitter@search.mozilla.org

Name: uBlock Origin
Version: 1.16.0
Enabled: true
ID: uBlock0@raymondhill.net

Name: Wikipedia (en)
Version: 1.0
Enabled: true
ID: wikipedia@search.mozilla.org

Graphics

Features
Compositing: OpenGL
Asynchronous Pan/Zoom: wheel input enabled; scrollbar drag enabled; keyboard enabled; autoscroll enabled
WebGL 1 Driver WSI Info: GLX 1.4 GLX_VENDOR(client): NVIDIA Corporation GLX_VENDOR(server): NVIDIA Corporation Extensions: GLX_EXT_visual_info GLX_EXT_visual_rating GLX_EXT_import_context GLX_SGIX_fbconfig GLX_SGIX_pbuffer GLX_SGI_video_sync GLX_SGI_swap_control GLX_EXT_swap_control GLX_EXT_swap_control_tear GLX_EXT_texture_from_pixmap GLX_EXT_buffer_age GLX_ARB_create_context GLX_ARB_create_context_profile GLX_EXT_create_context_es_profile GLX_EXT_create_context_es2_profile GLX_ARB_create_context_no_error GLX_ARB_create_context_robustness GLX_NV_delay_before_swap GLX_EXT_stereo_tree GLX_ARB_context_flush_control GLX_NV_robustness_video_memory_purge GLX_NV_multigpu_context GLX_ARB_multisample GLX_NV_float_buffer GLX_ARB_fbconfig_float GLX_EXT_framebuffer_sRGB GLX_NV_copy_image GLX_ARB_get_proc_address
WebGL 1 Driver Renderer: NVIDIA Corporation -- GeForce GTX 1080/PCIe/SSE2
WebGL 1 Driver Version: 4.6.0 NVIDIA 440.59
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WebGL 1 Extensions: ANGLE_instanced_arrays EXT_blend_minmax EXT_color_buffer_half_float EXT_disjoint_timer_query EXT_float_blend EXT_frag_depth EXT_shader_texture_lod EXT_sRGB EXT_texture_compression_bptc EXT_texture_compression_rgtc EXT_texture_filter_anisotropic 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_etc 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 2 Driver WSI Info: GLX 1.4 GLX_VENDOR(client): NVIDIA Corporation GLX_VENDOR(server): NVIDIA Corporation Extensions: GLX_EXT_visual_info GLX_EXT_visual_rating GLX_EXT_import_context GLX_SGIX_fbconfig GLX_SGIX_pbuffer GLX_SGI_video_sync GLX_SGI_swap_control GLX_EXT_swap_control GLX_EXT_swap_control_tear GLX_EXT_texture_from_pixmap GLX_EXT_buffer_age GLX_ARB_create_context GLX_ARB_create_context_profile GLX_EXT_create_context_es_profile GLX_EXT_create_context_es2_profile GLX_ARB_create_context_no_error GLX_ARB_create_context_robustness GLX_NV_delay_before_swap GLX_EXT_stereo_tree GLX_ARB_context_flush_control GLX_NV_robustness_video_memory_purge GLX_NV_multigpu_context GLX_ARB_multisample GLX_NV_float_buffer GLX_ARB_fbconfig_float GLX_EXT_framebuffer_sRGB GLX_NV_copy_image GLX_ARB_get_proc_address
WebGL 2 Driver Renderer: NVIDIA Corporation -- GeForce GTX 1080/PCIe/SSE2
WebGL 2 Driver Version: 3.2.0 NVIDIA 440.59
WebGL 2 Driver Extensions: GL_AMD_multi_draw_indirect GL_AMD_seamless_cubemap_per_texture GL_AMD_vertex_shader_viewport_index GL_AMD_vertex_shader_layer GL_ARB_arrays_of_arrays GL_ARB_base_instance GL_ARB_bindless_texture GL_ARB_blend_func_extended GL_ARB_buffer_storage GL_ARB_clear_buffer_object GL_ARB_clear_texture GL_ARB_clip_control GL_ARB_color_buffer_float GL_ARB_compressed_texture_pixel_storage GL_ARB_conservative_depth GL_ARB_compute_shader GL_ARB_compute_variable_group_size GL_ARB_conditional_render_inverted GL_ARB_copy_buffer GL_ARB_copy_image GL_ARB_cull_distance GL_ARB_debug_output GL_ARB_depth_buffer_float GL_ARB_depth_clamp GL_ARB_depth_texture GL_ARB_derivative_control GL_ARB_direct_state_access GL_ARB_draw_buffers GL_ARB_draw_buffers_blend GL_ARB_draw_indirect GL_ARB_draw_elements_base_vertex GL_ARB_draw_instanced GL_ARB_enhanced_layouts GL_ARB_ES2_compatibility GL_ARB_ES3_compatibility GL_ARB_ES3_1_compatibility GL_ARB_ES3_2_compatibility 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WebGL 2 Extensions: EXT_color_buffer_float EXT_disjoint_timer_query EXT_float_blend EXT_texture_compression_bptc EXT_texture_compression_rgtc EXT_texture_filter_anisotropic OES_texture_float_linear OVR_multiview2 WEBGL_compressed_texture_etc WEBGL_compressed_texture_s3tc WEBGL_compressed_texture_s3tc_srgb WEBGL_debug_renderer_info WEBGL_debug_shaders WEBGL_lose_context
Window Protocol: x11
Off Main Thread Painting Enabled: true
Off Main Thread Painting Worker Count: 4
Target Frame Rate: 60
GPU #1
Active: Yes
Description: GeForce GTX 1080/PCIe/SSE2
Vendor ID: 0x10de
Device ID: GeForce GTX 1080/PCIe/SSE2
Driver Vendor: nvidia/unknown
Driver Version: 440.59.0.0
RAM: 2585681152

Diagnostics
AzureCanvasBackend: skia
AzureCanvasBackend (UI Process): skia
AzureContentBackend: skia
AzureContentBackend (UI Process): skia
AzureFallbackCanvasBackend (UI Process): none
CairoUseXRender: 0
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Display0: 4160x1440 default
DisplayCount: 1
GPUProcessPid: 29662
Decision Log
HW_COMPOSITING:
force_enabled by user: Force-enabled by pref
blocked by env: Acceleration blocked by platform
OPENGL_COMPOSITING:
force_enabled by user: Force-enabled by pref
WEBRENDER:
opt-in by default: WebRender is an opt-in feature
WEBRENDER_QUALIFIED:
blacklisted by env: No qualified hardware
WEBRENDER_COMPOSITOR:
disabled by default: Disabled by default
WEBGPU:
disabled by default: Disabled by default

Media

Audio Backend: pulse-rust
Max Channels: 2
Preferred Sample Rate: 48000
Output Devices
Name: Group
Sennheiser Main Audio Analog Stereo: /devices/pci0000:00/0000:00:08.1/0000:0b:00.3/usb3/3-3/3-3:1.0/sound/card2
HD-Audio Generic Analog Stereo: /devices/pci0000:00/0000:00:08.1/0000:0b:00.4/sound/card1
GP104 High Definition Audio Controller Digital Stereo (HDMI): /devices/pci0000:00/0000:00:03.1/0000:09:00.1/sound/card0
Input Devices
Name: Group
Monitor of Sennheiser Main Audio Analog Stereo: /devices/pci0000:00/0000:00:08.1/0000:0b:00.3/usb3/3-3/3-3:1.0/sound/card2
Sennheiser Main Audio Digital Stereo (IEC958): /devices/pci0000:00/0000:00:08.1/0000:0b:00.3/usb3/3-3/3-3:1.0/sound/card2
Monitor of HD-Audio Generic Analog Stereo: /devices/pci0000:00/0000:00:08.1/0000:0b:00.4/sound/card1
HD-Audio Generic Analog Stereo: /devices/pci0000:00/0000:00:08.1/0000:0b:00.4/sound/card1
Monitor of GP104 High Definition Audio Controller Digital Stereo (HDMI): /devices/pci0000:00/0000:00:03.1/0000:09:00.1/sound/card0

Enumerate database

Important Modified Preferences

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browser.cache.disk.telemetry_report_ID: 67
browser.cache.frecency_experiment: 4
browser.contentblocking.category: standard
browser.places.smartBookmarksVersion: 8
browser.search.update: false
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browser.startup.homepage: google.bg
browser.startup.homepage_override.buildID: 20200207195153
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browser.tabs.crashReporting.includeURL: true
browser.tabs.remote.autostart.2: true
browser.urlbar.lastSuggestionsPromptDate: 20180424
browser.urlbar.matchBuckets: general:5,suggestion:Infinity
browser.urlbar.maxRichResults: 12
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browser.urlbar.placeholderName.private: Google
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browser.zoom.full: false
dom.disable_window_move_resize: true
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font.internaluseonly.changed: true
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layers.acceleration.force-enabled: true
media.benchmark.vp9.fps: 257
media.benchmark.vp9.versioncheck: 5
media.eme.enabled: true
media.gmp-gmpopenh264.abi: x86_64-gcc3
media.gmp-gmpopenh264.lastUpdate: 1572118333
media.gmp-gmpopenh264.version: 1.8.1.1
media.gmp-manager.buildID: 20200207195153
media.gmp-manager.lastCheck: 1582058671
media.gmp-widevinecdm.abi: x86_64-gcc3
media.gmp-widevinecdm.lastUpdate: 1581839607
media.gmp-widevinecdm.version: 4.10.1582.2
media.gmp.storage.version.observed: 1
network.cookie.prefsMigrated: true
network.dns.disablePrefetch: true
network.http.speculative-parallel-limit: 0
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places.database.lastMaintenance: 1581621316
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privacy.socialtracking.notification.lastShown: 1572327155567
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signon.importedFromSqlite: true
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Important Locked Preferences

fission.autostart: false

Places Database

JavaScript

Incremental GC: true

Accessibility

Activated: false
Prevent Accessibility: 0

Library Versions

NSPR
Expected minimum version: 4.24
Version in use: 4.24

NSS
Expected minimum version: 3.49.2
Version in use: 3.49.2

NSSSMIME
Expected minimum version: 3.49.2
Version in use: 3.49.2

NSSSSL
Expected minimum version: 3.49.2
Version in use: 3.49.2

NSSUTIL
Expected minimum version: 3.49.2
Version in use: 3.49.2

Sandbox

Seccomp-BPF (System Call Filtering): true
Seccomp Thread Synchronization: true
User Namespaces: true
Content Process Sandboxing: true
Media Plugin Sandboxing: true
Content Process Sandbox Level: 4
Effective Content Process Sandbox Level: 4

Rejected System Calls

Internationalization & Localization

Application Settings
Requested Locales: ["en-US"]
Available Locales: ["en-US","en-CA","en-GB"]
App Locales: ["en-US","en-CA","en-GB","und"]
Regional Preferences: ["en-US","en-CA","en-GB","und"]
Default Locale: "und"
Operating System
System Locales: ["en-US"]
Regional Preferences: ["bg-BG"]

As this is on NVIDIA, this could well be video purging. There is NV_robustness_video_memory_purge, which notifies applications when the video has been purged (https://www.khronos.org/registry/OpenGL/extensions/NV/NV_robustness_video_memory_purge.txt)

This is an old known bug, duplicate of bug 1515253 or bug 1596577 (these are appearances of the same bug). It does not belong to bug 1604492 as it's rather easy to reproduce. It's the one relevant bug of proprietary Nvidia with WebRender. See:

(robert.mader from comment 2)

As this is on NVIDIA, this could well be video purging. There is NV_robustness_video_memory_purge, which notifies applications when the video has been purged (https://www.khronos.org/registry/OpenGL/extensions/NV/NV_robustness_video_memory_purge.txt)