Open Bug 1526600 Opened 7 years ago Updated 4 months ago

Youtube 60 FPS Dropped Frames

Categories

(Core :: Audio/Video: Playback, defect, P3)

65 Branch
defect

Tracking

()

UNCONFIRMED

People

(Reporter: aus2j, Unassigned)

Details

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:65.0) Gecko/20100101 Firefox/65.0

Steps to reproduce:

  • Firefox is up to date.
  • Hardware acceleration on/off didn't fix this.
  • No add ons/ safe mode didn't fix this.
  • New profile didn't fix this.
  • I have a NVIDIA GTX 980 TI with 417.71 driver.
  • I have a Intel i7 965 that is overclocked to 3.9ghz and 12GB of ram.

Actual results:

Dropped frames in various 720p 1080p 2160p 60fps YouTube videos and few 4K 30fps videos.

Expected results:

This PC should be able to view 4K 60FPS videos without any stutter or frame drops. Edge shows no stutter or frame drops on same videos tested.

Component: Untriaged → Audio/Video: Playback
Product: Firefox → Core
Priority: -- → P3

Application Basics

Name: Firefox
Version: 65.0.1
Build ID: 20190211233335
Update Channel: release
User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:65.0) Gecko/20100101 Firefox/65.0
OS: Windows_NT 10.0
Multiprocess Windows: 1/1 (Enabled by default)
Web Content Processes: 5/8
Enterprise Policies: Inactive
Google Key: Found
Mozilla Location Service Key: Found
Safe Mode: false

Crash Reports for the Last 3 Days

All Crash Reports Firefox Features

Name: Firefox Monitor
Version: 2.8
ID: fxmonitor@mozilla.org

Name: Firefox Screenshots
Version: 35.0.0
ID: screenshots@mozilla.org

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

Name: Web Compat
Version: 3.0.0
ID: webcompat@mozilla.org

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

Extensions

Name: Default Bookmark Folder
Version: 2.7.0
Enabled: true
ID: default-bookmark-folder@gustiaux.com

Name: Enhancer for YouTube™
Version: 2.0.84
Enabled: true
ID: enhancerforyoutube@maximerf.addons.mozilla.org

Name: Google Translator for Firefox
Version: 3.0.3.3
Enabled: true
ID: translator@zoli.bod

Name: New Tab Override
Version: 14.2.0
Enabled: true
ID: newtaboverride@agenedia.com

Name: Print Edit WE
Version: 23.9
Enabled: true
ID: printedit-we@DW-dev

Name: Route with Google Maps
Version: 1.2
Enabled: true
ID: route-with-google-maps-addon@daniel-wiedner.de

Name: uBlock Origin
Version: 1.18.4
Enabled: true
ID: uBlock0@raymondhill.net

Name: Undo Close Tab
Version: 4.4.3
Enabled: true
ID: {4853d046-c5a3-436b-bc36-220fd935ee1d}

Name: Zoom Page WE
Version: 13.3
Enabled: true
ID: zoompage-we@DW-dev

Security Software

Type: Windows Defender Antivirus

Type: Windows Defender Antivirus

Type: Windows Firewall

Graphics

Features
Compositing: Basic
Asynchronous Pan/Zoom: wheel input enabled; scrollbar drag enabled; keyboard enabled; autoscroll enabled
WebGL 1 Driver WSI Info: EGL_VENDOR: Google Inc. (adapter LUID: 00000000000076af) EGL_VERSION: 1.4 (ANGLE 2.1.0.790e8e6b4179) 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_NV_post_sub_buffer EGL_KHR_create_context EGL_EXT_device_query 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_flexible_surface_compatibility 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_create_context_client_arrays EGL_ANGLE_program_cache_control EGL_ANGLE_robust_resource_initialization EGL_ANGLE_create_context_extensions_enabled EGL_MOZ_create_context_provoking_vertex_dont_care EGL_EXTENSIONS(nullptr): EGL_EXT_client_extensions EGL_EXT_platform_base EGL_EXT_platform_device EGL_ANGLE_platform_angle EGL_ANGLE_platform_angle_d3d 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_explicit_context
WebGL 1 Driver Renderer: Google Inc. -- ANGLE (NVIDIA GeForce GTX 980 Ti Direct3D11 vs_5_0 ps_5_0)
WebGL 1 Driver Version: OpenGL ES 2.0 (ANGLE 2.1.0.790e8e6b4179)
WebGL 1 Driver Extensions: GL_ANGLE_client_arrays GL_ANGLE_depth_texture GL_ANGLE_explicit_context GL_ANGLE_explicit_context_gles1 GL_ANGLE_framebuffer_blit GL_ANGLE_framebuffer_multisample GL_ANGLE_instanced_arrays GL_ANGLE_lossy_etc_decode GL_ANGLE_pack_reverse_row_order GL_ANGLE_program_cache_control GL_ANGLE_request_extension GL_ANGLE_robust_client_memory 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_sync_query GL_EXT_blend_minmax GL_EXT_color_buffer_half_float GL_EXT_debug_marker GL_EXT_discard_framebuffer GL_EXT_disjoint_timer_query GL_EXT_draw_buffers GL_EXT_frag_depth GL_EXT_map_buffer_range 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_dxt1 GL_EXT_texture_compression_s3tc_srgb GL_EXT_texture_filter_anisotropic GL_EXT_texture_format_BGRA8888 GL_EXT_texture_rg GL_EXT_texture_storage 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_pack_subimage GL_NV_pixel_buffer_object GL_OES_EGL_image GL_OES_EGL_image_external GL_OES_compressed_ETC1_RGB8_texture GL_OES_depth32 GL_OES_element_index_uint 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_float GL_OES_texture_float_linear GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_OES_texture_npot GL_OES_vertex_array_object OES_compressed_EAC_R11_signed_texture OES_compressed_EAC_R11_unsigned_texture OES_compressed_EAC_RG11_signed_texture OES_compressed_EAC_RG11_unsigned_texture OES_compressed_ETC2_RGB8_texture OES_compressed_ETC2_RGBA8_texture OES_compressed_ETC2_punchthroughA_RGBA8_texture OES_compressed_ETC2_punchthroughA_sRGB8_alpha_texture OES_compressed_ETC2_sRGB8_alpha8_texture OES_compressed_ETC2_sRGB8_texture
WebGL 1 Extensions: ANGLE_instanced_arrays EXT_blend_minmax EXT_color_buffer_half_float EXT_frag_depth EXT_sRGB EXT_shader_texture_lod EXT_texture_filter_anisotropic EXT_disjoint_timer_query OES_element_index_uint 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 2 Driver WSI Info: EGL_VENDOR: Google Inc. (adapter LUID: 00000000000076af) EGL_VERSION: 1.4 (ANGLE 2.1.0.790e8e6b4179) 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_NV_post_sub_buffer EGL_KHR_create_context EGL_EXT_device_query 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_flexible_surface_compatibility 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_create_context_client_arrays EGL_ANGLE_program_cache_control EGL_ANGLE_robust_resource_initialization EGL_ANGLE_create_context_extensions_enabled EGL_MOZ_create_context_provoking_vertex_dont_care EGL_EXTENSIONS(nullptr): EGL_EXT_client_extensions EGL_EXT_platform_base EGL_EXT_platform_device EGL_ANGLE_platform_angle EGL_ANGLE_platform_angle_d3d 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_explicit_context
WebGL 2 Driver Renderer: Google Inc. -- ANGLE (NVIDIA GeForce GTX 980 Ti Direct3D11 vs_5_0 ps_5_0)
WebGL 2 Driver Version: OpenGL ES 3.0 (ANGLE 2.1.0.790e8e6b4179)
WebGL 2 Driver Extensions: GL_ANGLE_client_arrays GL_ANGLE_depth_texture GL_ANGLE_explicit_context GL_ANGLE_explicit_context_gles1 GL_ANGLE_framebuffer_blit GL_ANGLE_framebuffer_multisample GL_ANGLE_instanced_arrays GL_ANGLE_lossy_etc_decode GL_ANGLE_multiview GL_ANGLE_pack_reverse_row_order GL_ANGLE_program_cache_control GL_ANGLE_request_extension GL_ANGLE_robust_client_memory 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_sync_query GL_EXT_blend_minmax GL_EXT_color_buffer_float GL_EXT_color_buffer_half_float GL_EXT_debug_marker GL_EXT_discard_framebuffer GL_EXT_disjoint_timer_query GL_EXT_draw_buffers GL_EXT_frag_depth GL_EXT_map_buffer_range 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_dxt1 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_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_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_ETC1_RGB8_texture GL_OES_depth32 GL_OES_element_index_uint 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_float GL_OES_texture_float_linear GL_OES_texture_half_float GL_OES_texture_half_float_linear GL_OES_texture_npot GL_OES_vertex_array_object OES_compressed_EAC_R11_signed_texture OES_compressed_EAC_R11_unsigned_texture OES_compressed_EAC_RG11_signed_texture OES_compressed_EAC_RG11_unsigned_texture OES_compressed_ETC2_RGB8_texture OES_compressed_ETC2_RGBA8_texture OES_compressed_ETC2_punchthroughA_RGBA8_texture OES_compressed_ETC2_punchthroughA_sRGB8_alpha_texture OES_compressed_ETC2_sRGB8_alpha8_texture OES_compressed_ETC2_sRGB8_texture
WebGL 2 Extensions: EXT_color_buffer_float EXT_texture_filter_anisotropic EXT_disjoint_timer_query OES_texture_float_linear WEBGL_compressed_texture_s3tc WEBGL_compressed_texture_s3tc_srgb WEBGL_debug_renderer_info WEBGL_debug_shaders WEBGL_lose_context
Uses Tiling (Content): true
Off Main Thread Painting Enabled: true
Off Main Thread Painting Worker Count: 4
DirectWrite: true (10.0.17763.168)
GPU #1
Active: Yes
Description: NVIDIA GeForce GTX 980 Ti
Vendor ID: 0x10de
Device ID: 0x17c8
Driver Version: 25.21.14.1771
Driver Date: 1-11-2019
Drivers: C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_5db32447b43ce666\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_5db32447b43ce666\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_5db32447b43ce666\nvldumdx.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_5db32447b43ce666\nvldumdx.dll C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_5db32447b43ce666\nvldumd.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_5db32447b43ce666\nvldumd.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_5db32447b43ce666\nvldumd.dll,C:\WINDOWS\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_5db32447b43ce666\nvldumd.dll
Subsys ID: 49993842
RAM: 6144

Diagnostics
ClearType Parameters: Gamma: 2.2 Pixel Structure: BGR ClearType Level: 100 Enhanced Contrast: 50
AzureCanvasAccelerated: 0
AzureCanvasBackend: skia
AzureContentBackend: skia
AzureFallbackCanvasBackend: cairo
ClearType Parameters: Gamma: 2.2 Pixel Structure: BGR ClearType Level: 100 Enhanced Contrast: 50
Decision Log
HW_COMPOSITING:
disabled by user: Disabled by pref
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 disabled
disabled by env: D3D11 compositing is disabled
WEBRENDER:
opt-in by default: WebRender is an opt-in feature
unavailable by runtime: ANGLE is disabled

Media

Audio Backend: wasapi
Max Channels: 6
Preferred Sample Rate: 192000
Output Devices
Name: Group
:
:
:
marantz-AVR (NVIDIA High Definition Audio): HDAUDIO\FUNC_01&VEN_10DE&DEV_0070&SUBSYS_38424999&REV_1001\5&29c65616&1&0001
:
NVIDIA Output (NVIDIA High Definition Audio): HDAUDIO\FUNC_01&VEN_10DE&DEV_0070&SUBSYS_38424999&REV_1001\5&29c65616&1&0001
marantz-AVR (High Definition Audio Device): HDAUDIO\FUNC_01&VEN_10DE&DEV_0070&SUBSYS_38424999&REV_1001\5&29c65616&1&0001
NVIDIA Output (NVIDIA High Definition Audio): HDAUDIO\FUNC_01&VEN_10DE&DEV_0070&SUBSYS_38424999&REV_1001\5&29c65616&1&0001
marantz-AVR (NVIDIA High Definition Audio): HDAUDIO\FUNC_01&VEN_10DE&DEV_0070&SUBSYS_38424999&REV_1001\5&29c65616&1&0001
:
Digital Audio (HDMI) (High Definition Audio Device): HDAUDIO\FUNC_01&VEN_10DE&DEV_0070&SUBSYS_38424999&REV_1001\5&29c65616&1&0001
:
Digital Audio (HDMI) (High Definition Audio Device): HDAUDIO\FUNC_01&VEN_10DE&DEV_0070&SUBSYS_38424999&REV_1001\5&29c65616&1&0001
:
Digital Audio (HDMI) (High Definition Audio Device): HDAUDIO\FUNC_01&VEN_10DE&DEV_0070&SUBSYS_38424999&REV_1001\5&29c65616&1&0001
marantz-AVR (NVIDIA High Definition Audio): HDAUDIO\FUNC_01&VEN_10DE&DEV_0070&SUBSYS_38424999&REV_1001\5&29c65616&1&0001
Input Devices
Name: Group
Internal AUX Jack (NVIDIA High Definition Audio): HDAUDIO\FUNC_01&VEN_10DE&DEV_0070&SUBSYS_38424999&REV_1001\5&29c65616&1&0001
Internal AUX Jack (High Definition Audio Device): HDAUDIO\FUNC_01&VEN_10DE&DEV_0070&SUBSYS_38424999&REV_1001\5&29c65616&1&0001
:
Internal AUX Jack (NVIDIA High Definition Audio): HDAUDIO\FUNC_01&VEN_10DE&DEV_0070&SUBSYS_38424999&REV_1001\5&29c65616&1&0001
Internal AUX Jack (NVIDIA High Definition Audio): HDAUDIO\FUNC_01&VEN_10DE&DEV_0070&SUBSYS_38424999&REV_1001\5&29c65616&1&0001
Internal AUX Jack (High Definition Audio Device): HDAUDIO\FUNC_01&VEN_10DE&DEV_0070&SUBSYS_38424999&REV_1001\5&29c65616&1&0001
Internal AUX Jack (High Definition Audio Device): HDAUDIO\FUNC_01&VEN_10DE&DEV_0070&SUBSYS_38424999&REV_1001\5&29c65616&1&0001

Important Modified Preferences

accessibility.force_disabled: 1
accessibility.typeaheadfind: true
accessibility.typeaheadfind.flashBar: 0
browser.cache.disk.capacity: 1048576
browser.cache.disk.filesystem_reported: 1
browser.cache.disk.smart_size.first_run: false
browser.link.open_newwindow.restriction: 0
browser.search.useDBForOrder: true
browser.sessionstore.upgradeBackup.latestBuildID: 20190211233335
browser.startup.homepage: https://www.yahoo.com/
browser.startup.homepage_override.buildID: 20190211233335
browser.startup.homepage_override.mstone: 65.0.1
browser.tabs.loadBookmarksInBackground: true
browser.tabs.warnOnClose: false
browser.urlbar.matchBuckets: general:5,suggestion:Infinity
browser.urlbar.suggest.bookmark: false
browser.urlbar.suggest.openpage: false
browser.urlbar.timesBeforeHidingSuggestionsHint: 0
browser.zoom.siteSpecific: false
dom.forms.autocomplete.formautofill: true
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dom.push.userAgentID: 1858269c6abd483eab535d69a096d487
extensions.formautofill.addresses.enabled: false
extensions.lastAppVersion: 65.0.1
general.autoScroll: false
gfx.crash-guard.d3d11layers.appVersion: 65.0.1
gfx.crash-guard.d3d11layers.deviceID: 0x17c8
gfx.crash-guard.d3d11layers.driverVersion: 25.21.14.1771
gfx.crash-guard.d3d11layers.feature-d2d: true
gfx.crash-guard.d3d11layers.feature-d3d11: true
gfx.crash-guard.d3d11video.appVersion: 65.0.1
gfx.crash-guard.d3d11video.deviceID: 0x17c8
gfx.crash-guard.d3d11video.driverVersion: 25.21.14.1771
gfx.crash-guard.status.d3d11layers: 2
gfx.crash-guard.status.d3d11video: 2
layers.mlgpu.sanity-test-failed: false
media.benchmark.vp9.fps: 205
media.benchmark.vp9.versioncheck: 5
media.gmp-gmpopenh264.abi: x86_64-msvc-x64
media.gmp-gmpopenh264.lastUpdate: 1546193926
media.gmp-gmpopenh264.version: 1.7.1
media.gmp-manager.buildID: 20190211233335
media.gmp-manager.lastCheck: 1551195112
media.gmp-widevinecdm.abi: x86_64-msvc-x64
media.gmp-widevinecdm.lastUpdate: 1546099686
media.gmp-widevinecdm.version: 4.10.1146.0
media.gmp.storage.version.observed: 1
media.hardware-video-decoding.failed: false
mousewheel.min_line_scroll_amount: 40
network.dns.disableIPv6: true
network.predictor.cleaned-up: true
network.predictor.enabled: false
places.database.lastMaintenance: 1550601935
places.history.expiration.transient_current_max_pages: 124633
plugin.disable_full_page_plugin_for_types: application/pdf
print.printer_OKI_C5200n.print_bgcolor: false
print.printer_OKI_C5200n.print_bgimages: false
print.printer_OKI_C5200n.print_duplex: 0
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print.printer_OKI_C5200n.print_margin_top: 0.5
print.printer_OKI_C5200n.print_oddpages: true
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print.printer_OKI_C5200n.print_paper_name:
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print.printer_OKI_C5200n.print_resolution: 600
print.printer_OKI_C5200n.print_reversed: false
print.printer_OKI_C5200n.print_scaling: 1.00
print.printer_OKI_C5200n.print_shrink_to_fit: true
print.printer_OKI_C5200n.print_to_file: false
print.printer_OKI_C5200n.print_unwriteable_margin_bottom: 17
print.printer_OKI_C5200n.print_unwriteable_margin_left: 17
print.printer_OKI_C5200n.print_unwriteable_margin_right: 17
print.printer_OKI_C5200n.print_unwriteable_margin_top: 17
privacy.cpd.cookies: false
privacy.cpd.downloads: false
privacy.cpd.formdata: false
privacy.cpd.history: false
privacy.cpd.sessions: false
privacy.donottrackheader.enabled: true
privacy.history.custom: true
privacy.sanitize.pending: [{"id":"newtab-container","itemsToClear":[],"options":{}}]
privacy.sanitize.timeSpan: 0
security.disable_button.openCertManager: false
security.sandbox.content.tempDirSuffix: {daf409ba-a130-4f46-9523-69163049efa0}
security.sandbox.plugin.tempDirSuffix: {097779c4-b642-4eb5-838a-24195ac953f2}
services.sync.declinedEngines:
services.sync.engine.addresses.available: true
signon.importedFromSqlite: true
storage.vacuum.last.index: 1
storage.vacuum.last.places.sqlite: 1548786915
ui.osk.debug.keyboardDisplayReason: IKPOS: Touch screen not found.
ui.osk.enabled: false

Important Locked Preferences

Places Database

JavaScript

Incremental GC: true

Accessibility

Activated: false
Prevent Accessibility: 1
Accessible Handler Used: true
Accessibility Instantiator:

Library Versions

NSPR
Expected minimum version: 4.20
Version in use: 4.20

NSS
Expected minimum version: 3.41
Version in use: 3.41

NSSSMIME
Expected minimum version: 3.41
Version in use: 3.41

NSSSSL
Expected minimum version: 3.41
Version in use: 3.41

NSSUTIL
Expected minimum version: 3.41
Version in use: 3.41

Sandbox

Content Process Sandbox Level: 5
Effective Content Process Sandbox Level: 5

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"]

I have the same issue on FF71 on Win10, but only on specific 60FPS videos. For example, this video @ 1080p60FPS drops frames at an alarming rate, to the point that it's barely possible to tolerate the stutter.

Tested:

  • Against both Edge and Chrome, neither of which dropped any frames
  • on FF with / without H/W decoding: no difference
  • on FF in safe mode with add-ons disabled: no difference

System specs:

  • GTX 1060 6GBVRAM
  • AMD FX-6300 upto 4.1Ghz
  • 8GB 1600Mhz RAM
  • Windows 10 b1903
  • Display resolution 1440x900 at 75Hz

Troubleshooting information: [paste]

10 months later and I still have this issue.

Another 10 months later and counting

How is it even possible that all the up-to-date browsers struggle with simple 60fps video playback on Youtube, while even the ancient Internet Explorer plays 60fps videos with 0 framedrops. (old) Edge and Internet Explorer must be doing something right in that regard and its a joke that there hasn't been any progress in this case. I mean it's Youtube..

Severity: normal → S3
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