Bug: CPU spike when new tab page has many rows of icons
Status: NEW
Priority: P3
Created: 2023-06-01 15:17:18+00:00
Resolved: 2023-06-09 14:24:13+00:00

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/113.0

Steps to reproduce:

I customized the default new tab page by setting browser.newtabpage.activity-stream.topSitesRows to 20.

I also customized several icons with custom PNG (the edit menu).

about:support


Application Basics
------------------

Name: Firefox
Version: 113.0.2
Build ID: 20230522134052
Distribution ID:
Update Channel: release
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/113.0
OS: Windows_NT 10.0 19045
Launcher Process: Enabled
Multiprocess Windows: 1/1
Fission Windows: 1/1 Enabled by default
Remote Processes: 19
Enterprise Policies: Inactive
Google Location Service Key: Found
Google Safebrowsing Key: Found
Mozilla Location Service Key: Found
Safe Mode: false
Memory Size (RAM): 7.9 GB
Disk Space Available: 80.2 GB

Crash Reports for the Last 3 Days
---------------------------------

Firefox Features
----------------

Name: Firefox Screenshots
Version: 39.0.1
ID: screenshots@mozilla.org

Name: Form Autofill
Version: 1.0.1
ID: formautofill@mozilla.org

Name: Picture-In-Picture
Version: 1.0.0
ID: pictureinpicture@mozilla.org

Name: Web Compatibility Interventions
Version: 113.0.0
ID: webcompat@mozilla.org

Name: WebCompat Reporter
Version: 1.5.1
ID: webcompat-reporter@mozilla.org

Remote Features
---------------

Firefox Accounts toolbar button badge: (control)
Next generation accessibility engine powering screen readers: (treatment-a)

Remote Processes
----------------

Type: Privileged About
Count: 1

Type: Extension
Count: 1

Type: Isolated Web Content
Count: 11

Type: Isolated Service Worker
Count: 1

Type: Preallocated
Count: 3

Type: GPU
Count: 1

Type: Socket
Count: 1

Add-ons
-------

Name: Dictionnaire français
Type: dictionary
Version: 7.0b
Enabled: true
ID: fr-dicollecte@dictionaries.addons.mozilla.org

Name: Add-ons Search Detection
Type: extension
Version: 2.0.0
Enabled: true
ID: addons-search-detection@mozilla.com

Name: Amazon.co.uk
Type: extension
Version: 1.12
Enabled: true
ID: amazon@search.mozilla.org

Name: Bing
Type: extension
Version: 1.5
Enabled: true
ID: bing@search.mozilla.org

Name: DuckDuckGo
Type: extension
Version: 1.4
Enabled: true
ID: ddg@search.mozilla.org

Name: Facebook Container
Type: extension
Version: 2.3.9
Enabled: true
ID: @contain-facebook

Name: Firefox Multi-Account Containers
Type: extension
Version: 8.1.2
Enabled: true
ID: @testpilot-containers

Name: Google
Type: extension
Version: 1.4
Enabled: true
ID: google@search.mozilla.org

Name: Reddit Enhancement Suite
Type: extension
Version: 5.22.17
Enabled: true
ID: jid1-xUfzOsOFlzSOXg@jetpack

Name: uBlock Origin
Type: extension
Version: 1.49.2
Enabled: true
ID: uBlock0@raymondhill.net

Name: Wikipedia (en)
Type: extension
Version: 1.3
Enabled: true
ID: wikipedia@search.mozilla.org

Name: I don't care about cookies
Type: extension
Version: 3.4.7
Enabled: false
ID: jid1-KKzOGWgsW3Ao4Q@jetpack

Security Software
-----------------

Type: Microsoft Defender Antivirus

Type:

Type: Windows Firewall

Graphics
--------

Features
Window Device Pixel Ratios: 1,1
Compositing: WebRender
Asynchronous Pan/Zoom: wheel input enabled; scrollbar drag enabled; keyboard enabled; autoscroll enabled; smooth pinch-zoom enabled
WebGL 1 Driver WSI Info: EGL_VENDOR: Google Inc. (Intel) EGL_VERSION: 1.5 (ANGLE 2.1.19734 git hash: 23347851217a) 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 IsWebglOutOfProcessEnabled: 1
WebGL 1 Driver Renderer: Google Inc. (Intel) -- ANGLE (Intel, Intel(R) HD Graphics 5500 Direct3D11 vs_5_0 ps_5_0, D3D11-20.19.15.4963)
WebGL 1 Driver Version: OpenGL ES 2.0.0 (ANGLE 2.1.19734 git hash: 23347851217a)
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_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_pack_reverse_row_order GL_ANGLE_program_cache_control GL_ANGLE_provoking_vertex GL_ANGLE_request_extension GL_ANGLE_texture_compression_dxt3 GL_ANGLE_texture_compression_dxt5 GL_ANGLE_texture_usage GL_ANGLE_translated_shader_source GL_CHROMIUM_bind_generates_resource GL_CHROMIUM_bind_uniform_location GL_CHROMIUM_color_buffer_float_rgb GL_CHROMIUM_color_buffer_float_rgba 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_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_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_no_error 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_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_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_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: EGL_VENDOR: Google Inc. (Intel) EGL_VERSION: 1.5 (ANGLE 2.1.19734 git hash: 23347851217a) 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 IsWebglOutOfProcessEnabled: 1
WebGL 2 Driver Renderer: Google Inc. (Intel) -- ANGLE (Intel, Intel(R) HD Graphics 5500 Direct3D11 vs_5_0 ps_5_0, D3D11-20.19.15.4963)
WebGL 2 Driver Version: OpenGL ES 3.0.0 (ANGLE 2.1.19734 git hash: 23347851217a)
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_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_no_error 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
Direct2D: true
Target Frame Rate: 60
WebGPU Default Adapter: { "navigator.gpu": null }
WebGPU Fallback Adapter: { "navigator.gpu": null }
DirectWrite: true (10.0.19041.1566)
GPU #1
Active: Yes
Description: Intel(R) HD Graphics 5500
Vendor ID: 0x8086
Device ID: 0x1616
Driver Version: 20.19.15.4963
Driver Date: 2-21-2018
Drivers: igdumdim64 igd10iumd64 igd10iumd64 igd12umd64 igdumdim32 igd10iumd32 igd10iumd32 igd12umd32
Subsys ID: 503c17aa
RAM: 0
GPU #2
Active: No
RAM: 0
Diagnostics
AzureCanvasBackend: direct2d 1.1
AzureCanvasBackend (UI Process): skia
AzureContentBackend: skia
AzureContentBackend (UI Process): skia
AzureFallbackCanvasBackend (UI Process): skia
CMSOutputProfile: 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
Display0: 1366x768@60Hz scales:1.000000|1.000000
Display1: 1920x1080@60Hz scales:1.000000|1.000000
DisplayCount: 2
HardwareStretching: both=0 window-only=0 full-screen-only=0 none=2 error=0
OverlaySupport: NV12=None YUV2=None BGRA8=Software RGB10A2=None
SwapChainTearingSupport: Supported
GPUProcessPid: 12508
ClearType Parameters: \\.\DISPLAY1 [ Gamma: 1.8 Pixel Structure: RGB ClearType Level: 100 Enhanced Contrast: 50 ] \\.\DISPLAY2 [ Gamma: 1.8 Pixel Structure: RGB ClearType Level: 100 Enhanced Contrast: 50 ]
Decision Log
HW_COMPOSITING:
default: available,
D3D11_COMPOSITING:
default: available,
DIRECT2D:
default: available,
D3D11_HW_ANGLE:
default: available,
GPU_PROCESS:
default: available,
WEBRENDER:
default: available,
WEBRENDER_COMPOSITOR:
default: available,
WEBRENDER_PARTIAL:
default: available,
WEBRENDER_SHADER_CACHE:
default: available,
WEBRENDER_OPTIMIZED_SHADERS:
default: available,
WEBRENDER_ANGLE:
default: available,
WEBRENDER_DCOMP_PRESENT:
default: available,
WEBRENDER_SCISSORED_CACHE_CLEARS:
default: available,
env: blocklisted, Blocklisted by gfxInfo, Blocklisted due to known issues: bug 1603515
WEBGPU:
default: available,
runtime: blocked, WebGPU cannot be enabled in release or beta, Blocklisted; failure code WEBGPU_DISABLE_RELEASE_OR_BETA
WINDOW_OCCLUSION:
default: available,
VIDEO_OVERLAY:
default: available,
HW_DECODED_VIDEO_ZERO_COPY:
default: available,
VP8_HW_DECODE:
default: available,
VP9_HW_DECODE:
default: available,
REUSE_DECODER_DEVICE:
default: available,
BACKDROP_FILTER:
default: available,
CANVAS_RENDERER_THREAD:
default: available,
ACCELERATED_CANVAS2D:
default: disabled, Disabled by default, Blocklisted; failure code FEATURE_FAILURE_DISABLED




Media
-----

Audio Backend: wasapi
Max Channels: 2
Preferred Sample Rate: 48000
Roundtrip latency (standard deviation): NaNms (NaN)
Codec Support Information: H264 SW H264 HW VP8 SW VP8 HW VP9 SW VP9 HW AV1 SW Theora SW AAC SW FLAC SW MP3 SW Opus SW Vorbis SW Wave SW
Output Devices
Name: Group, Vendor, State, Preferred, Format, Channels, Rate, Latency
Headphones (High Definition Audio Device): HDAUDIO\FUNC_01&VEN_10EC&DEV_0292&SUBSYS_17AA503C&REV_1000\4&1395269c&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_0292&SUBSYS_17AA503C&REV_1000\4&1395269c&0&0001, Enabled, None, default: F32LE, support: S16LE F32LE, 2, default: 48000, support: 48000 - 48000, 128 - 480
Input Devices
Name: Group, Vendor, State, Preferred, Format, Channels, Rate, Latency
Microphone (High Definition Audio Device): HDAUDIO\FUNC_01&VEN_10EC&DEV_0292&SUBSYS_17AA503C&REV_1000\4&1395269c&0&0001, Enabled, All, default: F32LE, support: S16LE F32LE, 2, default: 44100, support: 44100 - 44100, 128 - 448
Microphone (High Definition Audio Device): HDAUDIO\FUNC_01&VEN_10EC&DEV_0292&SUBSYS_17AA503C&REV_1000\4&1395269c&0&0001, Unplugged, None, default: F32LE, support: S16LE F32LE, 2, default: 44100, support: 44100 - 44100, 0 - 0

Enumerate database

Environment Variables
---------------------

MOZ_CRASHREPORTER_DATA_DIRECTORY: C:\Users\eio\AppData\Roaming\Mozilla\Firefox\Crash Reports
MOZ_CRASHREPORTER_EVENTS_DIRECTORY: C:\Users\eio\AppData\Roaming\Mozilla\Firefox\Profiles\zqfy3puk.default-release-1677829489877\crashes\events
MOZ_CRASHREPORTER_PING_DIRECTORY: C:\Users\eio\AppData\Roaming\Mozilla\Firefox\Pending Pings
MOZ_CRASHREPORTER_RESTART_ARG_0: C:\Program Files\Mozilla Firefox\firefox.exe
MOZ_CRASHREPORTER_RESTART_ARG_1: -p
MOZ_CRASHREPORTER_RESTART_ARG_2: default-release
MOZ_CRASHREPORTER_STRINGS_OVERRIDE: C:\Program Files\Mozilla Firefox\browser\crashreporter-override.ini

Experimental Features
---------------------

about:home startup cache (browser.startup.homepage.abouthome_cache.enabled): false
Accessibility cache (accessibility.cache.enabled): true
Cookies: SameSite=None requires secure attribute (network.cookie.sameSite.noneRequiresSecure): false
CSS: Masonry Layout (layout.css.grid-template-masonry-value.enabled): false
Developer Tools: Compatibility Panel (devtools.inspector.compatibility.enabled): true
Developer Tools: Service Worker debugging (devtools.debugger.features.windowless-service-workers): false
Media: JPEG XL (image.jxl.enabled): false
Address Bar: show results during IME composition (browser.urlbar.keepPanelOpenDuringImeComposition): false
Web API: WebGPU (dom.webgpu.enabled): false
WebRTC Global Mute Toggles (privacy.webrtc.globalMuteToggles): false

Remote Experiments
------------------

Existing Users - Set default Pdf handler Message: treatment-a
New Import Interface: Firefox 113 (existing users): treatment-b

Important Modified Preferences
------------------------------

accessibility.typeaheadfind.flashBar: 0
browser.contentblocking.category: strict
browser.download.useDownloadDir: false
browser.search.region: FR
browser.sessionstore.upgradeBackup.latestBuildID: 20230522134052
browser.startup.homepage_override.buildID: 20230522134052
browser.startup.homepage_override.mstone: 113.0.2
browser.startup.page: 3
browser.tabs.firefox-view.ui-state.recently-closed-tabs.open: false
browser.tabs.firefox-view.ui-state.tab-pickup.open: true
browser.tabs.inTitlebar: 0
browser.urlbar.placeholderName: DuckDuckGo
browser.urlbar.placeholderName.private: DuckDuckGo
browser.urlbar.quicksuggest.migrationVersion: 2
browser.urlbar.quicksuggest.scenario: history
browser.urlbar.resultGroups: {"children":[{"maxResultCount":1,"children":[{"group":"heuristicTest"},{"group":"heuristicExtension"},{"group":"heuristi
browser.urlbar.showSearchSuggestionsFirst: false
browser.urlbar.tabToSearch.onboard.interactionsLeft: 1
browser.urlbar.tipShownCount.searchTip_onboard: 4
doh-rollout.doneFirstRun: true
doh-rollout.home-region: FR
dom.forms.autocomplete.formautofill: true
extensions.formautofill.creditCards.enabled: false
extensions.lastAppVersion: 113.0.2
font.default.x-western: sans-serif
general.autoScroll: false
idle.lastDailyNotification: 1685562551
media.benchmark.vp9.fps: 1
media.benchmark.vp9.versioncheck: 5
media.gmp-gmpopenh264.abi: x86_64-msvc-x64
media.gmp-gmpopenh264.hashValue: 06511f1f6c6d44d076b3c593528c26a602348d9c41689dbf5ff716b671c3ca5756b12cb2e5869f836dedce27b1a5cfe79b93c707fd01f8e84b620923
media.gmp-gmpopenh264.lastDownload: 1679480017
media.gmp-gmpopenh264.lastDownloadFailed: 1680507371
media.gmp-gmpopenh264.lastDownloadFailReason: Error: Failed downloading via ServiceRequest, status: 0, reason: error
media.gmp-gmpopenh264.lastInstallStart: 1680507371
media.gmp-gmpopenh264.lastUpdate: 1679480017
media.gmp-gmpopenh264.version: 1.8.1.2
media.gmp-manager.buildID: 20230522134052
media.gmp-manager.lastCheck: 1685556328
media.gmp-manager.lastEmptyCheck: 1685556328
media.gmp-widevinecdm.abi: x86_64-msvc-x64
media.gmp-widevinecdm.hashValue: b046dd1b26ec0b810ee441b7ad4dc135e3f1521a817b9f3db60a32976352e8f7e53920e1a77fc5b4130aac260d79deef7e823267b4414e9cc774d8bf
media.gmp-widevinecdm.lastDownload: 1679480020
media.gmp-widevinecdm.lastInstallStart: 1679480017
media.gmp-widevinecdm.lastUpdate: 1679480020
media.gmp-widevinecdm.version: 4.10.2557.0
media.gmp.storage.version.observed: 1
media.hardware-video-decoding.failed: false
media.videocontrols.picture-in-picture.video-toggle.has-used: true
network.dns.disablePrefetch: true
network.http.referer.disallowCrossSiteRelaxingDefault.top_navigation: true
network.http.speculative-parallel-limit: 0
network.predictor.enabled: false
network.prefetch-next: false
places.database.lastMaintenance: 1685016155
privacy.annotate_channels.strict_list.enabled: true
privacy.clearOnShutdown.downloads: false
privacy.clearOnShutdown.formdata: false
privacy.clearOnShutdown.history: false
privacy.clearOnShutdown.offlineApps: true
privacy.clearOnShutdown.sessions: false
privacy.cpd.cookies: false
privacy.cpd.downloads: false
privacy.cpd.formdata: false
privacy.cpd.history: false
privacy.cpd.sessions: false
privacy.history.custom: true
privacy.partition.network_state.ocsp_cache: true
privacy.purge_trackers.date_in_cookie_database: 0
privacy.purge_trackers.last_purge: 1685562551878
privacy.query_stripping.enabled: true
privacy.query_stripping.enabled.pbmode: true
privacy.sanitize.pending: [{"id":"shutdown","itemsToClear":["cache","cookies","offlineApps"],"options":{}},{"id":"newtab-container","itemsToClear"
privacy.sanitize.sanitizeOnShutdown: true
privacy.sanitize.timeSpan: 0
privacy.trackingprotection.emailtracking.enabled: true
privacy.trackingprotection.enabled: true
privacy.trackingprotection.socialtracking.enabled: true
privacy.userContext.enabled: true
privacy.userContext.extension: @contain-facebook
privacy.userContext.ui.enabled: true
security.sandbox.content.tempDirSuffix: {aef16ceb-1fb0-4de3-9535-822ef4cd4492}
services.sync.engine.prefs.modified: true
storage.vacuum.last.index: 1
storage.vacuum.last.places.sqlite: 1683059980
ui.osk.debug.keyboardDisplayReason: IKPOS: Touch screen not found.

Important Locked Preferences
----------------------------

fission.autostart.session: true

Places Database
---------------

Entity: sqlite_schema
Count: -
Size (KiB): 32
Size (%): 0
Efficiency (%): 22.3
Sequentiality (%): 32.8

Entity: moz_origins
Count: 3622
Size (KiB): 192
Size (%): 0.2
Efficiency (%): 69
Sequentiality (%): 32.8

Entity: sqlite_autoindex_moz_origins_1
Count: -
Size (KiB): 192
Size (%): 0.2
Efficiency (%): 64.2
Sequentiality (%): 32.8

Entity: moz_places
Count: 184016
Size (KiB): 35648
Size (%): 46.3
Efficiency (%): 93.4
Sequentiality (%): 32.8

Entity: moz_historyvisits
Count: 211417
Size (KiB): 5664
Size (%): 7.4
Efficiency (%): 97.4
Sequentiality (%): 32.8

Entity: moz_inputhistory
Count: 222
Size (KiB): 32
Size (%): 0
Efficiency (%): 19.2
Sequentiality (%): 32.8

Entity: sqlite_autoindex_moz_inputhistory_1
Count: -
Size (KiB): 32
Size (%): 0
Efficiency (%): 13.8
Sequentiality (%): 32.8

Entity: moz_bookmarks
Count: 9234
Size (KiB): 992
Size (%): 1.3
Efficiency (%): 92.4
Sequentiality (%): 32.8

Entity: moz_bookmarks_deleted
Count: 0
Size (KiB): 32
Size (%): 0
Efficiency (%): 0
Sequentiality (%): 32.8

Entity: sqlite_autoindex_moz_bookmarks_deleted_1
Count: -
Size (KiB): 32
Size (%): 0
Efficiency (%): 0
Sequentiality (%): 32.8

Entity: moz_keywords
Count: 3
Size (KiB): 32
Size (%): 0
Efficiency (%): 0.2
Sequentiality (%): 32.8

Entity: sqlite_autoindex_moz_keywords_1
Count: -
Size (KiB): 32
Size (%): 0
Efficiency (%): 0.1
Sequentiality (%): 32.8

Entity: sqlite_sequence
Count: -
Size (KiB): 32
Size (%): 0
Efficiency (%): 0.1
Sequentiality (%): 32.8

Entity: moz_anno_attributes
Count: 3
Size (KiB): 32
Size (%): 0
Efficiency (%): 0.3
Sequentiality (%): 32.8

Entity: sqlite_autoindex_moz_anno_attributes_1
Count: -
Size (KiB): 32
Size (%): 0
Efficiency (%): 0.3
Sequentiality (%): 32.8

Entity: moz_annos
Count: 5361
Size (KiB): 608
Size (%): 0.8
Efficiency (%): 87.6
Sequentiality (%): 32.8

Entity: moz_items_annos
Count: 0
Size (KiB): 32
Size (%): 0
Efficiency (%): 0
Sequentiality (%): 32.8

Entity: moz_meta
Count: 5
Size (KiB): 32
Size (%): 0
Efficiency (%): 1.1
Sequentiality (%): 32.8

Entity: sqlite_stat1
Count: -
Size (KiB): 32
Size (%): 0
Efficiency (%): 3.4
Sequentiality (%): 32.8

Entity: moz_places_metadata
Count: 0
Size (KiB): 32
Size (%): 0
Efficiency (%): 0
Sequentiality (%): 32.8

Entity: moz_places_metadata_search_queries
Count: 0
Size (KiB): 32
Size (%): 0
Efficiency (%): 0
Sequentiality (%): 32.8

Entity: sqlite_autoindex_moz_places_metadata_search_queries_1
Count: -
Size (KiB): 32
Size (%): 0
Efficiency (%): 0
Sequentiality (%): 32.8

Entity: moz_previews_tombstones
Count: 0
Size (KiB): 32
Size (%): 0
Efficiency (%): 0
Sequentiality (%): 32.8

Entity: moz_places_url_hashindex
Count: -
Size (KiB): 2976
Size (%): 3.9
Efficiency (%): 90.5
Sequentiality (%): 32.8

Entity: moz_places_hostindex
Count: -
Size (KiB): 4704
Size (%): 6.1
Efficiency (%): 90.4
Sequentiality (%): 32.8

Entity: moz_places_visitcount
Count: -
Size (KiB): 1760
Size (%): 2.3
Efficiency (%): 92.4
Sequentiality (%): 32.8

Entity: moz_places_frecencyindex
Count: -
Size (KiB): 1984
Size (%): 2.6
Efficiency (%): 90.5
Sequentiality (%): 32.8

Entity: moz_places_lastvisitdateindex
Count: -
Size (KiB): 3232
Size (%): 4.2
Efficiency (%): 93.2
Sequentiality (%): 32.8

Entity: moz_places_guid_uniqueindex
Count: -
Size (KiB): 4064
Size (%): 5.3
Efficiency (%): 92.8
Sequentiality (%): 32.8

Entity: moz_places_originidindex
Count: -
Size (KiB): 2112
Size (%): 2.7
Efficiency (%): 88.5
Sequentiality (%): 32.8

Entity: moz_historyvisits_placedateindex
Count: -
Size (KiB): 5120
Size (%): 6.7
Efficiency (%): 84.1
Sequentiality (%): 32.8

Entity: moz_historyvisits_fromindex
Count: -
Size (KiB): 2144
Size (%): 2.8
Efficiency (%): 91.8
Sequentiality (%): 32.8

Entity: moz_historyvisits_dateindex
Count: -
Size (KiB): 3680
Size (%): 4.8
Efficiency (%): 94.6
Sequentiality (%): 32.8

Entity: moz_bookmarks_itemindex
Count: -
Size (KiB): 160
Size (%): 0.2
Efficiency (%): 64.2
Sequentiality (%): 32.8

Entity: moz_bookmarks_parentindex
Count: -
Size (KiB): 192
Size (%): 0.2
Efficiency (%): 57.2
Sequentiality (%): 32.8

Entity: moz_bookmarks_itemlastmodifiedindex
Count: -
Size (KiB): 256
Size (%): 0.3
Efficiency (%): 68.3
Sequentiality (%): 32.8

Entity: moz_bookmarks_dateaddedindex
Count: -
Size (KiB): 192
Size (%): 0.2
Efficiency (%): 75.2
Sequentiality (%): 32.8

Entity: moz_bookmarks_guid_uniqueindex
Count: -
Size (KiB): 256
Size (%): 0.3
Efficiency (%): 70.5
Sequentiality (%): 32.8

Entity: moz_keywords_placepostdata_uniqueindex
Count: -
Size (KiB): 32
Size (%): 0
Efficiency (%): 0.1
Sequentiality (%): 32.8

Entity: moz_annos_placeattributeindex
Count: -
Size (KiB): 128
Size (%): 0.2
Efficiency (%): 54.5
Sequentiality (%): 32.8

Entity: moz_items_annos_itemattributeindex
Count: -
Size (KiB): 32
Size (%): 0
Efficiency (%): 0
Sequentiality (%): 32.8

Entity: moz_places_metadata_placecreated_uniqueindex
Count: -
Size (KiB): 32
Size (%): 0
Efficiency (%): 0
Sequentiality (%): 32.8

Entity: moz_places_metadata_referrerindex
Count: -
Size (KiB): 32
Size (%): 0
Efficiency (%): 0
Sequentiality (%): 32.8

Accessibility
-------------

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

Library Versions
----------------

NSPR
Expected minimum version: 4.35
Version in use: 4.35

NSS
Expected minimum version: 3.89
Version in use: 3.89

NSSSMIME
Expected minimum version: 3.89
Version in use: 3.89

NSSSSL
Expected minimum version: 3.89
Version in use: 3.89

NSSUTIL
Expected minimum version: 3.89
Version in use: 3.89

Sandbox
-------

Content Process Sandbox Level: 6
Effective Content Process Sandbox Level: 6
Win32k Lockdown State for Content Process: Win32k Lockdown enabled -- default value is true
GPU Process Sandbox Level: 1

Startup Cache
-------------

Disk Cache Path: C:\Users\eio\AppData\Local\Mozilla\Firefox\Profiles\zqfy3puk.default-release-1677829489877\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: false
URL:

Printing
--------

Modified print settings
-----------------------

print_printer: Microsoft Print to PDF
print.more-settings.open: true
print.printer_Microsoft_Print_to_PDF.print_bgcolor: true
print.printer_Microsoft_Print_to_PDF.print_bgimages: true
print.printer_Microsoft_Print_to_PDF.print_footercenter:
print.printer_Microsoft_Print_to_PDF.print_footerleft:
print.printer_Microsoft_Print_to_PDF.print_footerright:
print.printer_Microsoft_Print_to_PDF.print_headercenter:
print.printer_Microsoft_Print_to_PDF.print_headerleft:
print.printer_Microsoft_Print_to_PDF.print_headerright:
print.printer_Microsoft_Print_to_PDF.print_ignore_unwriteable_margins: true
print.printer_Microsoft_Print_to_PDF.print_margin_bottom: 0
print.printer_Microsoft_Print_to_PDF.print_margin_left: 0
print.printer_Microsoft_Print_to_PDF.print_margin_right: 0
print.printer_Microsoft_Print_to_PDF.print_margin_top: 0
print.printer_Microsoft_Print_to_PDF.print_orientation: 0
print.printer_Microsoft_Print_to_PDF.print_paper_height: 11.6929133858268
print.printer_Microsoft_Print_to_PDF.print_paper_id: 9
print.printer_Microsoft_Print_to_PDF.print_paper_size_unit: 0
print.printer_Microsoft_Print_to_PDF.print_paper_width: 8.26771653543307
print.printer_Microsoft_Print_to_PDF.print_scaling: 1.15
print.printer_Microsoft_Print_to_PDF.print_shrink_to_fit: false
print.printer_Microsoft_Print_to_PDF.print_unwriteable_margin_bottom_twips: 0
print.printer_Microsoft_Print_to_PDF.print_unwriteable_margin_left_twips: 0
print.printer_Microsoft_Print_to_PDF.print_unwriteable_margin_right_twips: 0
print.printer_Microsoft_Print_to_PDF.print_unwriteable_margin_top_twips: 0



Actual results:

I profiled a CPU spike that would happen randomly. This happens at random times, no idea how to trigger it. When I saw the spike happen, I profile with about:processes and uploaded this:

https://share.firefox.dev/3N6pf2t