Bug: Allocated memory of RDD process grows to gigabytes when fullscreen video is played
Status: RESOLVED
Priority: --
Resolution: DUPLICATE
Created: 2021-09-22 18:47:09+00:00
Resolved: 2021-09-23 21:35:51+00:00

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:94.0) Gecko/20100101 Firefox/94.0

Steps to reproduce:

1. Visit YouTube's page with video on https://www.youtube.com/watch?v=oXF-uyPIKcc
2. Start to play video in fullscreen mode

Actual results:

After 10 seconds of video's playing in fullscreen mode allocated memory of RDD process goes to ~ 1GB. After next 30 seconds in fullscreen mode allocated memory goes to ~ 4 GB. As long as you play video in fullscreen mode allocated memory still goes up. 
Allocated memory of RDD process was monitored via Activity Monitor of macos in column called "Memory". Column "Private Mem" seems to be alright. 
After a few minutes of playing of fullscreen video macos shows dialog suggesting to kill Firefox Nightly because of system memory becomes insufficient. If you don't react, RDD process brings down whole macos system and computer is restarted.

This issue doesn't occur if I play video in non-fullscreen mode.

Expected results:

Allocated memory of RDD process should remain in acceptable level similar to non-fullscreen mode.

About:support information

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

Name: Firefox
Version: 94.0a1
Build ID: 20210922094736
Distribution ID:
Update Channel: nightly
User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:94.0) Gecko/20100101 Firefox/94.0
OS: Darwin 19.6.0 Darwin Kernel Version 19.6.0: Tue Jun 22 19:49:55 PDT 2021; root:xnu-6153.141.35~1/RELEASE_X86_64
Rosetta Translated: false
Multiprocess Windows: 1/1
Fission Windows: 1/1 Enabled by experiment
Remote Processes: 13
Enterprise Policies: Inactive
Google Location Service Key: Found
Google Safebrowsing Key: Found
Mozilla Location Service Key: Found
Safe Mode: false

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

Nightly Features
----------------

Name: DoH Roll-Out
Version: 2.0.0
ID: doh-rollout@mozilla.org

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: Proxy Failover
Version: 1.0.0
ID: proxy-failover@mozilla.com

Name: Web Compatibility Interventions
Version: 26.2.0
ID: webcompat@mozilla.org

Name: WebCompat Reporter
Version: 1.4.2
ID: webcompat-reporter@mozilla.org

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

bug-1705528-rollout-ongoing-fission-nightly-rollout-clone-nightly-90-100: active
upgradeDialog: (upgradeDialog-defaultEnabled)

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

Type: Extension
Count: 1

Type: Privileged About
Count: 1

Type: Isolated Web Content
Count: 7

Type: Preallocated
Count: 3

Type: Socket
Count: 1

Add-ons
-------

Name: Amazon.com
Type: extension
Version: 1.3
Enabled: true
ID: amazondotcom@search.mozilla.org

Name: Bing
Type: extension
Version: 1.3
Enabled: true
ID: bing@search.mozilla.org

Name: DuckDuckGo
Type: extension
Version: 1.1
Enabled: true
ID: ddg@search.mozilla.org

Name: Google
Type: extension
Version: 1.1
Enabled: true
ID: google@search.mozilla.org

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

Name: Livemarks
Type: extension
Version: 3.3
Enabled: true
ID: {c5867acc-54c9-4074-9574-04d8818d53e8}

Name: Snoozz - Snooze Tabs & Windows for later
Type: extension
Version: 2.4.4.3
Enabled: true
ID: {91f61227-b765-4ece-ac2c-73a28ec8fb58}

Name: Tree Style Tab
Type: extension
Version: 3.8.12
Enabled: true
ID: treestyletab@piro.sakura.ne.jp

Name: Wikipedia (en)
Type: extension
Version: 1.1
Enabled: true
ID: wikipedia@search.mozilla.org

Name: RESTer
Type: extension
Version: 4.7.0
Enabled: false
ID: rester@kuehle.me

Graphics
--------

Features
Compositing: WebRender
Asynchronous Pan/Zoom: wheel input enabled; scrollbar drag enabled; autoscroll enabled; smooth pinch-zoom enabled
WebGL 1 Driver WSI Info: CGL IsWebglOutOfProcessEnabled: 1
WebGL 1 Driver Renderer: ATI Technologies Inc. -- AMD Radeon R9 M395 OpenGL Engine
WebGL 1 Driver Version: 4.1 ATI-3.10.22
WebGL 1 Driver Extensions: GL_ARB_blend_func_extended GL_ARB_draw_buffers_blend GL_ARB_draw_indirect GL_ARB_ES2_compatibility GL_ARB_explicit_attrib_location GL_ARB_gpu_shader_fp64 GL_ARB_gpu_shader5 GL_ARB_instanced_arrays GL_ARB_internalformat_query GL_ARB_occlusion_query2 GL_ARB_sample_shading GL_ARB_sampler_objects GL_ARB_separate_shader_objects GL_ARB_shader_bit_encoding GL_ARB_shader_subroutine GL_ARB_shading_language_include GL_ARB_tessellation_shader GL_ARB_texture_buffer_object_rgb32 GL_ARB_texture_cube_map_array GL_ARB_texture_gather GL_ARB_texture_query_lod GL_ARB_texture_rgb10_a2ui GL_ARB_texture_storage GL_ARB_texture_swizzle GL_ARB_timer_query GL_ARB_transform_feedback2 GL_ARB_transform_feedback3 GL_ARB_vertex_attrib_64bit GL_ARB_vertex_type_2_10_10_10_rev GL_ARB_viewport_array GL_EXT_debug_label GL_EXT_debug_marker GL_EXT_depth_bounds_test GL_EXT_texture_compression_s3tc GL_EXT_texture_filter_anisotropic GL_EXT_texture_mirror_clamp GL_EXT_texture_sRGB_decode GL_APPLE_client_storage GL_APPLE_container_object_shareable GL_APPLE_flush_render GL_APPLE_object_purgeable GL_APPLE_rgb_422 GL_APPLE_row_bytes GL_APPLE_texture_range GL_ATI_texture_mirror_once GL_NV_texture_barrier
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_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 2 Driver WSI Info: CGL IsWebglOutOfProcessEnabled: 1
WebGL 2 Driver Renderer: ATI Technologies Inc. -- AMD Radeon R9 M395 OpenGL Engine
WebGL 2 Driver Version: 4.1 ATI-3.10.22
WebGL 2 Driver Extensions: GL_ARB_blend_func_extended GL_ARB_draw_buffers_blend GL_ARB_draw_indirect GL_ARB_ES2_compatibility GL_ARB_explicit_attrib_location GL_ARB_gpu_shader_fp64 GL_ARB_gpu_shader5 GL_ARB_instanced_arrays GL_ARB_internalformat_query GL_ARB_occlusion_query2 GL_ARB_sample_shading GL_ARB_sampler_objects GL_ARB_separate_shader_objects GL_ARB_shader_bit_encoding GL_ARB_shader_subroutine GL_ARB_shading_language_include GL_ARB_tessellation_shader GL_ARB_texture_buffer_object_rgb32 GL_ARB_texture_cube_map_array GL_ARB_texture_gather GL_ARB_texture_query_lod GL_ARB_texture_rgb10_a2ui GL_ARB_texture_storage GL_ARB_texture_swizzle GL_ARB_timer_query GL_ARB_transform_feedback2 GL_ARB_transform_feedback3 GL_ARB_vertex_attrib_64bit GL_ARB_vertex_type_2_10_10_10_rev GL_ARB_viewport_array GL_EXT_debug_label GL_EXT_debug_marker GL_EXT_depth_bounds_test GL_EXT_texture_compression_s3tc GL_EXT_texture_filter_anisotropic GL_EXT_texture_mirror_clamp GL_EXT_texture_sRGB_decode GL_APPLE_client_storage GL_APPLE_container_object_shareable GL_APPLE_flush_render GL_APPLE_object_purgeable GL_APPLE_rgb_422 GL_APPLE_row_bytes GL_APPLE_texture_range GL_ATI_texture_mirror_once GL_NV_texture_barrier
WebGL 2 Extensions: EXT_color_buffer_float EXT_float_blend EXT_texture_compression_rgtc EXT_texture_filter_anisotropic MOZ_debug 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: true
Target Frame Rate: 60
GPU #1
Active: Yes
Vendor ID: 0x8086
Device ID: 0x1912
RAM: 0
GPU #2
Active: Yes
Vendor ID: 0x1002
Device ID: 0x6920
RAM: 0
Diagnostics
AzureCanvasBackend: skia
AzureContentBackend: skia
AzureFallbackCanvasBackend: skia
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Decision Log
HW_COMPOSITING:
available by default
OPENGL_COMPOSITING:
available by default
WEBRENDER:
available by default
WEBRENDER_QUALIFIED:
available by default
WEBRENDER_COMPOSITOR:
available by default
WEBRENDER_SHADER_CACHE:
disabled by default: Disabled by default
WEBRENDER_OPTIMIZED_SHADERS:
available by default
WEBRENDER_ANGLE:
available by default
unavailable by env: OS not supported
WEBRENDER_DCOMP_PRESENT:
available by default
disabled by user: User disabled via pref
unavailable by env: Requires Windows 10 or later
unavailable by runtime: Requires ANGLE
WEBRENDER_SOFTWARE:
available by default
WEBGPU:
disabled by default: Disabled by default




Media
-----

Audio Backend: audiounit-rust
Max Channels: 2
Preferred Sample Rate: 44100
Output Devices
Name: Group
Internal Speakers: builtin-internal-mic|spk
Input Devices
Name: Group
Internal Microphone: builtin-internal-mic|spk
Media Capabilities
Enumerate database

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

MOZ_CRASHREPORTER_EVENTS_DIRECTORY: /Users/michal/Library/Application Support/Firefox/Profiles/yllcty80.default/crashes/events
MOZ_CRASHREPORTER_RESTART_ARG_0: /Applications/Firefox Nightly.app/Contents/MacOS/firefox
MOZ_CRASHREPORTER_RESTART_ARG_1:
MOZ_CRASHREPORTER_DATA_DIRECTORY: /Users/michal/Library/Application Support/Firefox/Crash Reports
MOZ_CRASHREPORTER_PING_DIRECTORY: /Users/michal/Library/Application Support/Firefox/Pending Pings
MOZ_CRASHREPORTER_STRINGS_OVERRIDE: /Applications/Firefox Nightly.app/Contents/Resources/browser/crashreporter-override.ini
MOZ_LAUNCHED_CHILD:
MOZ_APP_SILENT_START:
XRE_PROFILE_PATH:
XRE_PROFILE_LOCAL_PATH:
XRE_START_OFFLINE:
XRE_BINARY_PATH:
XRE_RESTARTED_BY_PROFILE_MANAGER:

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

about:home startup cache (browser.startup.homepage.abouthome_cache.enabled): true
Cookies: SameSite=Lax by default (network.cookie.sameSite.laxByDefault): true
Cookies: SameSite=None requires secure attribute (network.cookie.sameSite.noneRequiresSecure): true
Cookies: Schemeful SameSite (network.cookie.sameSite.schemeful): true
CSS: Cascade Layers (layout.css.cascade-layers.enabled): true
CSS: Constructable Stylesheets (layout.css.constructable-stylesheets.enabled): false
CSS: Masonry Layout (layout.css.grid-template-masonry-value.enabled): true
Developer Tools: Compatibility Panel (devtools.inspector.compatibility.enabled): true
Developer Tools: Execution Context Selector (devtools.webconsole.input.context): true
Developer Tools: Service Worker debugging (devtools.debugger.features.windowless-service-workers): false
Fission (Site Isolation) (fission.autostart): true
Media: JPEG XL (image.jxl.enabled): false
Multiple Picture-in-Picture Support (media.videocontrols.picture-in-picture.allow-multiple): true
Address Bar: show results during IME composition (browser.urlbar.keepPanelOpenDuringImeComposition): false
Web API: inputmode (dom.forms.inputmode): true
Web API: WebGPU (dom.webgpu.enabled): false
WebRTC Global Mute Toggles (privacy.webrtc.globalMuteToggles): false
Win32k Lockdown (security.sandbox.content.win32k-disable): false

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

Firefox 100 User-Agent: version-100

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

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accessibility.browsewithcaret: true
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browser.urlbar.placeholderName.private: DuckDuckGo
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network.predictor.cleaned-up: true
network.trr.blocklist_cleanup_done: true
network.trr.mode: 2
places.database.lastMaintenance: 1632176721
places.history.expiration.transient_current_max_pages: 152410
plugin.disable_full_page_plugin_for_types: application/pdf
plugin.importedState: true
plugin.state.default browser: 0
plugin.state.flash: 0
plugin.state.java: 0
privacy.clearOnShutdown.downloads: false
privacy.clearOnShutdown.history: false
privacy.clearOnShutdown.offlineApps: true
privacy.cpd.downloads: false
privacy.cpd.extensions-dta: true
privacy.cpd.history: false
privacy.cpd.offlineApps: true
privacy.donottrackheader.enabled: true
privacy.history.custom: true
privacy.purge_trackers.date_in_cookie_database: 0
privacy.purge_trackers.last_purge: 1632263117407
privacy.sanitize.didShutdownSanitize: true
privacy.sanitize.migrateClearSavedPwdsOnExit: true
privacy.sanitize.migrateFx3Prefs: true
privacy.sanitize.pending: [{"id":"shutdown","itemsToClear":["cache","cookies","offlineApps","formdata","sessions"],"options":{}},{"id":"newtab-con
privacy.sanitize.sanitizeOnShutdown: true
privacy.sanitize.timeSpan: 0
privacy.trackingprotection.enabled: true
privacy.userContext.extension: treestyletab@piro.sakura.ne.jp
security.disable_button.openCertManager: false
security.remote_settings.crlite_filters.checked: 1632297883
security.remote_settings.intermediates.checked: 1632254598
security.sandbox.content.tempDirSuffix: {7954fa65-1b11-b74c-b2cd-030ed8d6161c}
security.sandbox.plugin.tempDirSuffix: d8e39e92-d8c1-9243-90f3-08292731e96a
services.sync.declinedEngines: passwords
services.sync.engine.addresses: true
services.sync.engine.bookmarks.validation.lastTime: 1632253175
services.sync.engine.creditcards: true
services.sync.engine.passwords: false
services.sync.engine.prefs.modified: false
services.sync.lastPing: 1632253173
services.sync.lastSync: Wed Sep 22 2021 20:15:16 GMT+0200 (Central European Summer Time)
signon.importedFromSqlite: true
signon.rememberSignons: false
signon.usage.hasEntry: true
storage.vacuum.last.index: 1
storage.vacuum.last.places.sqlite: 1629947975

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

fission.autostart.session: true

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

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

Activated: false
Prevent Accessibility: 1

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

NSPR
Expected minimum version: 4.32
Version in use: 4.32

NSS
Expected minimum version: 3.71 Beta
Version in use: 3.71 Beta

NSSSMIME
Expected minimum version: 3.71 Beta
Version in use: 3.71 Beta

NSSSSL
Expected minimum version: 3.71 Beta
Version in use: 3.71 Beta

NSSUTIL
Expected minimum version: 3.71 Beta
Version in use: 3.71 Beta

Sandbox
-------

Content Process Sandbox Level: 3
Effective Content Process Sandbox Level: 3
Win32k Lockdown State for Content Process: Win32k Lockdown disabled -- Operating system not supported

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

Disk Cache Path: /Users/michal/Library/Caches/Firefox/Profiles/yllcty80.default/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-CZ","cs-CZ"]
Default Locale: "en-US"
Operating System
System Locales: ["en-CZ","cs-CZ"]
Regional Preferences: ["en-CZ","cs-CZ"]

Remote Debugging (Chromium Protocol)
------------------------------------

Accepting Connections: false
URL:

Printing
--------

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

print_printer: Canon TS6300 series
print.macosx.pagesetup-2: PD94bWwgdmVyc2lvbj0iMS4wIiBlbmNvZGluZz0iVVRGLTgiPz4KPCFET0NUWVBFIHBsaXN0IFBVQkxJQyAiLS8vQXBwbGUvL0RURCBQTElTVCAxLjAvL0VO
print.print_bgcolor: false
print.print_bgimages: false
print.print_colorspace:
print.print_command:
print.print_downloadfonts: false
print.print_duplex: 1515870810
print.print_evenpages: true
print.print_in_color: true
print.print_margin_bottom: 0.5
print.print_margin_left: 0.5
print.print_margin_right: 0.5
print.print_margin_top: 0.5
print.print_oddpages: true
print.print_orientation: 0
print.print_page_delay: 50
print.print_paper_data: 0
print.print_paper_height: 11.00
print.print_paper_name:
print.print_paper_size_type: 1
print.print_paper_size_unit: 0
print.print_paper_width: 8.50
print.print_plex_name:
print.print_resolution: 1515870810
print.print_resolution_name:
print.print_reversed: false
print.print_scaling: 1.00
print.print_shrink_to_fit: true
print.print_to_file: false
print.print_unwriteable_margin_bottom: 57
print.print_unwriteable_margin_left: 25
print.print_unwriteable_margin_right: 25
print.print_unwriteable_margin_top: 25
print.printer__.print_bgcolor: false
print.printer__.print_bgimages: false
print.printer__.print_duplex: 1515870810
print.printer__.print_edge_bottom: 0
print.printer__.print_edge_left: 0
print.printer__.print_edge_right: 0
print.printer__.print_edge_top: 0
print.printer__.print_evenpages: true
print.printer__.print_footercenter:
print.printer__.print_footerleft: &PT
print.printer__.print_footerright: &D
print.printer__.print_headercenter:
print.printer__.print_headerleft: &T
print.printer__.print_headerright: &U
print.printer__.print_in_color: true
print.printer__.print_margin_bottom: 0.5
print.printer__.print_margin_left: 0.5
print.printer__.print_margin_right: 0.5
print.printer__.print_margin_top: 0.5
print.printer__.print_oddpages: true
print.printer__.print_orientation: 0
print.printer__.print_page_delay: 50
print.printer__.print_paper_data: 0
print.printer__.print_paper_height: 11.69
print.printer__.print_paper_name: iso-a4
print.printer__.print_paper_size_unit: 0
print.printer__.print_paper_width: 8.26
print.printer__.print_resolution: 1515870810
print.printer__.print_reversed: false
print.printer__.print_scaling: 1.00
print.printer__.print_shrink_to_fit: true
print.printer__.print_to_file: false
print.printer__.print_unwriteable_margin_bottom: 57
print.printer__.print_unwriteable_margin_left: 25
print.printer__.print_unwriteable_margin_right: 25
print.printer__.print_unwriteable_margin_top: 25
print.printer_Canon_MG5200_series__069A8E000000.print_bgcolor: false
print.printer_Canon_MG5200_series__069A8E000000.print_bgimages: false
print.printer_Canon_MG5200_series__069A8E000000.print_duplex: 1515870810
print.printer_Canon_MG5200_series__069A8E000000.print_edge_bottom: 0
print.printer_Canon_MG5200_series__069A8E000000.print_edge_left: 0
print.printer_Canon_MG5200_series__069A8E000000.print_edge_right: 0
print.printer_Canon_MG5200_series__069A8E000000.print_edge_top: 0
print.printer_Canon_MG5200_series__069A8E000000.print_evenpages: true
print.printer_Canon_MG5200_series__069A8E000000.print_footercenter:
print.printer_Canon_MG5200_series__069A8E000000.print_footerleft: &PT
print.printer_Canon_MG5200_series__069A8E000000.print_footerright: &D
print.printer_Canon_MG5200_series__069A8E000000.print_headercenter:
print.printer_Canon_MG5200_series__069A8E000000.print_headerleft: &T
print.printer_Canon_MG5200_series__069A8E000000.print_headerright: &U
print.printer_Canon_MG5200_series__069A8E000000.print_in_color: true
print.printer_Canon_MG5200_series__069A8E000000.print_margin_bottom: 0.5
print.printer_Canon_MG5200_series__069A8E000000.print_margin_left: 0.5
print.printer_Canon_MG5200_series__069A8E000000.print_margin_right: 0.5
print.printer_Canon_MG5200_series__069A8E000000.print_margin_top: 0.5
print.printer_Canon_MG5200_series__069A8E000000.print_oddpages: true
print.printer_Canon_MG5200_series__069A8E000000.print_orientation: 0
print.printer_Canon_MG5200_series__069A8E000000.print_page_delay: 50
print.printer_Canon_MG5200_series__069A8E000000.print_paper_data: 0
print.printer_Canon_MG5200_series__069A8E000000.print_paper_height: 11
print.printer_Canon_MG5200_series__069A8E000000.print_paper_id: na_letter_8.5x11in
print.printer_Canon_MG5200_series__069A8E000000.print_paper_name: A4
print.printer_Canon_MG5200_series__069A8E000000.print_paper_size_type: 1
print.printer_Canon_MG5200_series__069A8E000000.print_paper_size_unit: 0
print.printer_Canon_MG5200_series__069A8E000000.print_paper_width: 8.5
print.printer_Canon_MG5200_series__069A8E000000.print_resolution: 0
print.printer_Canon_MG5200_series__069A8E000000.print_reversed: false
print.printer_Canon_MG5200_series__069A8E000000.print_scaling: 1
print.printer_Canon_MG5200_series__069A8E000000.print_shrink_to_fit: true
print.printer_Canon_MG5200_series__069A8E000000.print_to_file: false
print.printer_Canon_MG5200_series__069A8E000000.print_unwriteable_margin_bottom: 20
print.printer_Canon_MG5200_series__069A8E000000.print_unwriteable_margin_left: 25
print.printer_Canon_MG5200_series__069A8E000000.print_unwriteable_margin_right: 25
print.printer_Canon_MG5200_series__069A8E000000.print_unwriteable_margin_top: 12
print.printer_Canon_TS6300_series.print_bgcolor: false
print.printer_Canon_TS6300_series.print_bgimages: false
print.printer_Canon_TS6300_series.print_duplex: 0
print.printer_Canon_TS6300_series.print_edge_bottom: 0
print.printer_Canon_TS6300_series.print_edge_left: 0
print.printer_Canon_TS6300_series.print_edge_right: 0
print.printer_Canon_TS6300_series.print_edge_top: 0
print.printer_Canon_TS6300_series.print_footercenter:
print.printer_Canon_TS6300_series.print_footerleft: &PT
print.printer_Canon_TS6300_series.print_footerright: &D
print.printer_Canon_TS6300_series.print_headercenter:
print.printer_Canon_TS6300_series.print_headerleft: &T
print.printer_Canon_TS6300_series.print_headerright: &U
print.printer_Canon_TS6300_series.print_in_color: true
print.printer_Canon_TS6300_series.print_margin_bottom: 0.5
print.printer_Canon_TS6300_series.print_margin_left: 0.5
print.printer_Canon_TS6300_series.print_margin_right: 0.5
print.printer_Canon_TS6300_series.print_margin_top: 0.5
print.printer_Canon_TS6300_series.print_orientation: 0
print.printer_Canon_TS6300_series.print_page_delay: 50
print.printer_Canon_TS6300_series.print_paper_height: 11
print.printer_Canon_TS6300_series.print_paper_id: na_letter_8.5x11in
print.printer_Canon_TS6300_series.print_paper_size_unit: 0
print.printer_Canon_TS6300_series.print_paper_width: 8.5
print.printer_Canon_TS6300_series.print_resolution: 0
print.printer_Canon_TS6300_series.print_reversed: false
print.printer_Canon_TS6300_series.print_scaling: 1
print.printer_Canon_TS6300_series.print_shrink_to_fit: true
print.printer_Canon_TS6300_series.print_to_file: false
print.printer_Canon_TS6300_series.print_unwriteable_margin_bottom: 20
print.printer_Canon_TS6300_series.print_unwriteable_margin_left: 25
print.printer_Canon_TS6300_series.print_unwriteable_margin_right: 25
print.printer_Canon_TS6300_series.print_unwriteable_margin_top: 20