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Diffstat (limited to 'modules/libpref/init/StaticPrefList.yaml')
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diff --git a/modules/libpref/init/StaticPrefList.yaml b/modules/libpref/init/StaticPrefList.yaml new file mode 100644 index 0000000000..d598c37864 --- /dev/null +++ b/modules/libpref/init/StaticPrefList.yaml @@ -0,0 +1,10517 @@ +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this +# file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +# This file defines static prefs, i.e. those that are defined at startup and +# used entirely or mostly from C++ and/or Rust code. +# +# The file is separated into sections, where each section contains a group of +# prefs that all share the same first segment of their name -- all the "gfx.*" +# prefs are together, all the "network.*" prefs are together, etc. Sections +# must be kept in alphabetical order, but prefs within sections need not be. +# +# Basics +# ------ +# Any pref defined in one of the files included here should *not* be defined +# in a data file such as all.js; that would just be useless duplication. +# +# (Except under unusual circumstances where the value defined here must be +# overridden, e.g. for some Thunderbird prefs. In those cases the default +# value from the data file will override the static default value defined +# here.) +# +# Please follow the existing prefs naming convention when considering adding a +# new pref, and don't create a new pref group unless it's appropriate and there +# are likely to be multiple prefs within that group. (If you do, you'll need to +# update the `pref_groups` variable in modules/libpref/moz.build.) +# +# Definitions +# ----------- +# A pref definition looks like this: +# +# - name: <pref-name> # mandatory +# type: <cpp-type> # mandatory +# value: <default-value> # mandatory +# mirror: <never | once | always> # mandatory +# do_not_use_directly: <true | false> # optional +# include: <header-file> # optional +# rust: <true | false> # optional +# +# - `name` is the name of the pref, without double-quotes, as it appears +# in about:config. It is used in most libpref API functions (from both C++ +# and JS code). +# +# - `type` is one of `bool`, `int32_t`, `uint32_t`, `float`, an atomic version +# of one of those, or `String`. Note that float prefs are stored internally +# as strings. The C++ preprocessor doesn't like template syntax in a macro +# argument, so use the typedefs defined in StaticPrefsBase.h; for example, +# use `RelaxedAtomicBool` instead of `Atomic<bool, Relaxed>`. +# +# - `value` is the default value. Its type should be appropriate for +# <cpp-type>, otherwise the generated code will fail to compile. A complex +# C++ numeric expressions like `60 * 60` (which the YAML parser cannot treat +# as an integer or float) is treated as a string and passed through without +# change, which is useful. +# +# - `mirror` indicates how the pref value is mirrored into a C++ variable. +# +# * `never`: There is no C++ mirror variable. The pref value can only be +# accessed via the standard libpref API functions. +# +# * `once`: The pref value is mirrored into a variable at startup; the +# mirror variable is left unchanged after that. (The exact point at which +# all `once` mirror variables are set is when the first `once` mirror +# variable is accessed, via its getter function.) This is mostly useful for +# graphics prefs where we often don't want a new pref value to apply until +# restart. Otherwise, this update policy is best avoided because its +# behaviour can cause confusion and bugs. +# +# * `always`: The mirror variable is always kept in sync with the pref value. +# This is the most common choice. +# +# When a mirror variable is present, a getter will be created that can access +# it. Using the getter function to read the pref's value has the two +# following advantages over the normal API functions. +# +# * A direct variable access is faster than a hash table lookup. +# +# * A mirror variable can be accessed off the main thread. If a pref *is* +# accessed off the main thread, it should have an atomic type. Assertions +# enforce this. +# +# Note that Rust code must access the mirror variable directly, rather than +# via the getter function. +# +# - `do_not_use_directly` indicates if `_DoNotUseDirectly` should be appended to +# the name of the getter function. This is simply a naming convention +# indicating that there is some other wrapper getter function that should be +# used in preference to the normal static pref getter. Defaults to `false` if +# not present. Cannot be used with a `never` mirror value, because there is +# no getter function in that case. +# +# - `include` names a header file that must be included for the pref value to +# compile correctly, e.g. because it refers to a code constant. System +# headers should be surrounded with angle brackets, e.g. `<cmath>`. +# +# - `rust` indicates if the mirror variable is used by Rust code. If so, it +# will be usable via the `static_prefs::pref!` macro, e.g. +# `static_prefs::pref!("layout.css.font-display.enabled")`. +# +# The getter function's base name is the same as the pref's name, but with +# '.' or '-' chars converted to '_', to make a valid identifier. For example, +# the getter for `foo.bar_baz` is `foo_bar_baz()`. This is ugly but clear, +# and you can search for both the pref name and the getter using the regexp +# /foo.bar.baz/. Suffixes are added as follows: +# +# - If the `mirror` value is `once`, `_AtStartup` is appended, to indicate the +# value was obtained at startup. +# +# - If the `do_not_use_directly` value is true, `_DoNotUseDirectly` is +# appended. +# +# Preprocessor +# ------------ +# Note finally that this file is preprocessed by preprocessor.py, not the C++ +# preprocessor. As a result, the following things may be surprising. +# +# - YAML comments start with a '#', so putting a comment on the same line as a +# preprocessor directive is dubious. E.g. avoid lines like `#define X 3 # +# three` because the ` # three` will be part of `X`. +# +# - '@' use is required for substitutions to occur. E.g. with `#define FOO 1`, +# `FOO` won't be replaced with `1` unless it has '@' chars around it. +# +# - Spaces aren't permitted between the leading '#' and the name of a +# directive, e.g. `#ifdef XYZ` works but `# ifdef XYZ` does not. +# +# Please indent all prefs defined within #ifdef/#ifndef conditions. This +# improves readability, particular for conditional blocks that exceed a single +# screen. But note that the leading '-' in a definition must remain in the +# first column for it to be valid YAML. + +#ifdef RELEASE_OR_BETA +#define IS_NOT_RELEASE_OR_BETA false +#else +#define IS_NOT_RELEASE_OR_BETA true +#endif + +#ifdef NIGHTLY_BUILD +#define IS_NIGHTLY_BUILD true +#define IS_NOT_NIGHTLY_BUILD false +#else +#define IS_NIGHTLY_BUILD false +#define IS_NOT_NIGHTLY_BUILD true +#endif + +#if defined(NIGHTLY_BUILD) || defined(MOZ_DEV_EDITION) +#define IS_NIGHTLY_OR_DEV_EDITION true +#else +#define IS_NIGHTLY_OR_DEV_EDITION false +#endif + +#ifdef MOZILLA_OFFICIAL +#define IS_NOT_MOZILLA_OFFICIAL false +#else +#define IS_NOT_MOZILLA_OFFICIAL true +#endif + +#ifdef EARLY_BETA_OR_EARLIER +#define IS_EARLY_BETA_OR_EARLIER true +#define IS_NOT_EARLY_BETA_OR_EARLIER false +#else +#define IS_EARLY_BETA_OR_EARLIER false +#define IS_NOT_EARLY_BETA_OR_EARLIER true +#endif + +#ifdef ANDROID +#define IS_ANDROID true +#define IS_NOT_ANDROID false +#else +#define IS_ANDROID false +#define IS_NOT_ANDROID true +#endif + +#--------------------------------------------------------------------------- +# Prefs starting with "accessibility." +#--------------------------------------------------------------------------- + +- name: accessibility.accesskeycausesactivation + type: bool + value: true + mirror: always + +- name: accessibility.monoaudio.enable + type: RelaxedAtomicBool + value: false + mirror: always + +- name: accessibility.browsewithcaret + type: RelaxedAtomicBool + value: false + mirror: always + +- name: accessibility.AOM.enabled + type: bool + value: false + mirror: always + +- name: accessibility.ARIAReflection.enabled + type: bool + value: false + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "alerts." +#--------------------------------------------------------------------------- + +# Whether to use platform-specific backends for showing desktop notifications. +# If no such backend is available, or if the pref is false, then XUL +# notifications are used. +- name: alerts.useSystemBackend + type: bool +#ifdef XP_WIN + # Linux and macOS turn on system level notification as default, but Windows is + # disabled due to instability (dependencies of bug 1497425). + value: false +#else + value: true +#endif + mirror: always + + +#ifdef ANDROID + #--------------------------------------------------------------------------- + # Prefs starting with "android." + #--------------------------------------------------------------------------- + + # On Android, we want an opaque background to be visible under the page, + # so layout should not force a default background. +- name: android.widget_paints_background + type: bool + value: true + mirror: always + +- name: android.touch_resampling.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +#endif + +#--------------------------------------------------------------------------- +# Prefs starting with "apz." +# The apz prefs are explained in AsyncPanZoomController.cpp +#--------------------------------------------------------------------------- + +- name: apz.allow_double_tap_zooming + type: RelaxedAtomicBool + value: true + mirror: always + +- name: apz.allow_immediate_handoff + type: RelaxedAtomicBool + value: false + mirror: always + +- name: apz.allow_zooming + type: RelaxedAtomicBool + value: true + mirror: always + +- name: apz.allow_zooming_out + type: RelaxedAtomicBool + value: false + mirror: always + +- name: apz.android.chrome_fling_physics.friction + type: AtomicFloat + value: 0.015f + mirror: always + +- name: apz.android.chrome_fling_physics.inflexion + type: AtomicFloat + value: 0.35f + mirror: always + +- name: apz.android.chrome_fling_physics.stop_threshold + type: AtomicFloat + value: 0.1f + mirror: always + +- name: apz.autoscroll.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +- name: apz.axis_lock.breakout_angle + type: AtomicFloat + value: float(M_PI / 8.0) # 22.5 degrees + mirror: always + include: <cmath> + +- name: apz.axis_lock.breakout_threshold + type: AtomicFloat + value: 1.0f / 32.0f + mirror: always + +- name: apz.axis_lock.direct_pan_angle + type: AtomicFloat + value: float(M_PI / 3.0) # 60 degrees + mirror: always + include: <cmath> + +- name: apz.axis_lock.lock_angle + type: AtomicFloat + value: float(M_PI / 6.0) # 30 degrees + mirror: always + include: <cmath> + +# Whether to lock touch scrolling to one axis at a time. +# 0 = FREE (No locking at all) +# 1 = STANDARD (Once locked, remain locked until scrolling ends) +# 2 = STICKY (Allow lock to be broken, with hysteresis) +- name: apz.axis_lock.mode + type: RelaxedAtomicInt32 + value: 2 + mirror: always + +- name: apz.content_response_timeout + type: RelaxedAtomicInt32 + value: 400 + mirror: always + +- name: apz.danger_zone_x + type: RelaxedAtomicInt32 + value: 50 + mirror: always + +- name: apz.danger_zone_y + type: RelaxedAtomicInt32 + value: 100 + mirror: always + +- name: apz.disable_for_scroll_linked_effects + type: RelaxedAtomicBool + value: false + mirror: always + +- name: apz.displayport_expiry_ms + type: RelaxedAtomicUint32 + value: 15000 + mirror: always + +- name: apz.drag.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +- name: apz.drag.initial.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +- name: apz.drag.touch.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +- name: apz.enlarge_displayport_when_clipped + type: RelaxedAtomicBool + value: @IS_ANDROID@ + mirror: always + +# Test only. +- name: apz.fixed-margin-override.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +# Test only. +- name: apz.fixed-margin-override.bottom + type: RelaxedAtomicInt32 + value: 0 + mirror: always + +# Test only. +- name: apz.fixed-margin-override.top + type: RelaxedAtomicInt32 + value: 0 + mirror: always + +- name: apz.fling_accel_base_mult + type: AtomicFloat + value: 1.0f + mirror: always + +- name: apz.fling_accel_supplemental_mult + type: AtomicFloat + value: 1.0f + mirror: always + +- name: apz.fling_accel_min_fling_velocity + type: AtomicFloat + value: 1.5f + mirror: always + +- name: apz.fling_accel_min_pan_velocity + type: AtomicFloat + value: 0.8f + mirror: always + +- name: apz.fling_accel_max_pause_interval_ms + type: RelaxedAtomicInt32 + value: 50 + mirror: always + +- name: apz.fling_curve_function_x1 + type: float + value: 0.0f + mirror: once + +- name: apz.fling_curve_function_x2 + type: float + value: 1.0f + mirror: once + +- name: apz.fling_curve_function_y1 + type: float + value: 0.0f + mirror: once + +- name: apz.fling_curve_function_y2 + type: float + value: 1.0f + mirror: once + +- name: apz.fling_curve_threshold_inches_per_ms + type: AtomicFloat + value: -1.0f + mirror: always + +- name: apz.fling_friction + type: AtomicFloat + value: 0.002f + mirror: always + +- name: apz.fling_min_velocity_threshold + type: AtomicFloat + value: 0.5f + mirror: always + +- name: apz.fling_stop_on_tap_threshold + type: AtomicFloat + value: 0.05f + mirror: always + +- name: apz.fling_stopped_threshold + type: AtomicFloat + value: 0.01f + mirror: always + +- name: apz.touch_acceleration_factor_x + type: float + value: 1.0f + mirror: always + +- name: apz.touch_acceleration_factor_y + type: float + value: 1.0f + mirror: always + +# new scrollbar code for desktop zooming +- name: apz.force_disable_desktop_zooming_scrollbars + type: RelaxedAtomicBool + value: false + mirror: always + +#ifdef MOZ_WIDGET_GTK +- name: apz.gtk.kinetic_scroll.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +- name: apz.gtk.touchpad_pinch.enabled + type: RelaxedAtomicBool + value: false + mirror: always +#endif + +- name: apz.keyboard.enabled + type: bool + value: @IS_NOT_ANDROID@ + mirror: once + +- name: apz.keyboard.passive-listeners + type: RelaxedAtomicBool + value: @IS_NOT_ANDROID@ + mirror: always + +- name: apz.max_tap_time + type: RelaxedAtomicInt32 + value: 300 + mirror: always + +- name: apz.max_velocity_inches_per_ms + type: AtomicFloat + value: -1.0f + mirror: always + +- name: apz.max_velocity_queue_size + type: uint32_t + value: 5 + mirror: once + +- name: apz.min_skate_speed + type: AtomicFloat + value: 1.0f + mirror: always + +- name: apz.minimap.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +- name: apz.mvm.force-enabled + type: RelaxedAtomicBool + value: true + mirror: always + +- name: apz.one_touch_pinch.enabled + type: RelaxedAtomicBool + value: @IS_ANDROID@ + mirror: always + +- name: apz.overscroll.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +- name: apz.overscroll.min_pan_distance_ratio + type: AtomicFloat + value: 1.0f + mirror: always + +- name: apz.overscroll.stop_distance_threshold + type: AtomicFloat + value: 5.0f + mirror: always + +- name: apz.paint_skipping.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +- name: apz.peek_messages.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# Fetch displayport updates early from the message queue. +- name: apz.pinch_lock.mode + type: RelaxedAtomicInt32 + value: 1 + mirror: always + +- name: apz.pinch_lock.scroll_lock_threshold + type: AtomicFloat + value: 1.0f / 32.0f # 1/32 inches + mirror: always + +- name: apz.pinch_lock.span_breakout_threshold + type: AtomicFloat + value: 1.0f / 32.0f # 1/32 inches + mirror: always + +- name: apz.pinch_lock.span_lock_threshold + type: AtomicFloat + value: 1.0f / 32.0f # 1/32 inches + mirror: always + +- name: apz.pinch_lock.buffer_max_age + type: int32_t + value: 50 # milliseconds + mirror: once + +- name: apz.popups.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# Whether to print the APZC tree for debugging. +- name: apz.printtree + type: RelaxedAtomicBool + value: false + mirror: always + +- name: apz.record_checkerboarding + type: RelaxedAtomicBool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +- name: apz.second_tap_tolerance + type: AtomicFloat + value: 0.5f + mirror: always + +- name: apz.test.fails_with_native_injection + type: RelaxedAtomicBool + value: false + mirror: always + +- name: apz.test.logging_enabled + type: RelaxedAtomicBool + value: false + mirror: always + +- name: apz.touch_move_tolerance + type: AtomicFloat + value: 0.1f + mirror: always + +- name: apz.touch_start_tolerance + type: AtomicFloat + value: 0.1f + mirror: always + +- name: apz.velocity_bias + type: AtomicFloat + value: 0.0f + mirror: always + +- name: apz.velocity_relevance_time_ms + type: RelaxedAtomicUint32 + value: 100 + mirror: always + +- name: apz.windows.force_disable_direct_manipulation + type: RelaxedAtomicBool + value: false + mirror: always + +- name: apz.windows.use_direct_manipulation + type: RelaxedAtomicBool + value: true + mirror: always + +- name: apz.x_skate_highmem_adjust + type: AtomicFloat + value: 0.0f + mirror: always + +- name: apz.x_skate_size_multiplier + type: AtomicFloat + value: 1.25f + mirror: always + +- name: apz.x_stationary_size_multiplier + type: AtomicFloat + value: 1.5f + mirror: always + +- name: apz.y_skate_highmem_adjust + type: AtomicFloat + value: 0.0f + mirror: always + +- name: apz.y_skate_size_multiplier + type: AtomicFloat +#if defined(MOZ_WIDGET_ANDROID) + value: 1.5f +#else + value: 3.5f +#endif + mirror: always + +- name: apz.y_stationary_size_multiplier + type: AtomicFloat +#if defined(MOZ_WIDGET_ANDROID) + value: 1.5f +#else + value: 3.5f +#endif + mirror: always + +- name: apz.zoom_animation_duration_ms + type: RelaxedAtomicInt32 + value: 250 + mirror: always + +- name: apz.scale_repaint_delay_ms + type: RelaxedAtomicInt32 + value: 500 + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "beacon." +#--------------------------------------------------------------------------- + +# Is support for Navigator.sendBeacon enabled? +- name: beacon.enabled + type: bool + value: true + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "bidi." +#--------------------------------------------------------------------------- + +# Whether delete and backspace should immediately delete characters not +# visually adjacent to the caret, or adjust the visual position of the caret +# on the first keypress and delete the character on a second keypress +- name: bidi.edit.delete_immediately + type: bool + value: true + mirror: always + +# Bidi caret movement style: +# 0 = logical +# 1 = visual +# 2 = visual, but logical during selection +- name: bidi.edit.caret_movement_style + type: int32_t +#if !defined(XP_LINUX) && defined(NIGHTLY_BUILD) + value: 1 +#else + value: 2 # See Bug 1638240 +#endif + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "browser." +#--------------------------------------------------------------------------- + +- name: browser.active_color + type: String + value: "#EE0000" + mirror: never + +- name: browser.anchor_color + type: String + value: "#0000EE" + mirror: never + +# See http://dev.w3.org/html5/spec/forms.html#attr-fe-autofocus +- name: browser.autofocus + type: bool + value: true + mirror: always + +- name: browser.cache.offline.enable + type: bool + value: true + mirror: always + +- name: browser.cache.offline.storage.enable + type: bool + value: false + mirror: always + +- name: browser.cache.disk.enable + type: RelaxedAtomicBool + value: true + mirror: always + +- name: browser.cache.memory.enable + type: RelaxedAtomicBool + value: true + mirror: always + +# Limit of recent metadata we keep in memory for faster access, in KB. +- name: browser.cache.disk.metadata_memory_limit + type: RelaxedAtomicUint32 + value: 250 # 0.25 MB + mirror: always + +# Does the user want smart-sizing? +- name: browser.cache.disk.smart_size.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# Disk cache capacity in kilobytes. It's used only when +# browser.cache.disk.smart_size.enabled == false +- name: browser.cache.disk.capacity + type: RelaxedAtomicUint32 + value: 256000 + mirror: always + +# Enable/Disable Origin based cache isolation +- name: browser.cache.cache_isolation + type: RelaxedAtomicBool + value: false + mirror: always + +# -1 = determine dynamically, 0 = none, n = memory capacity in kilobytes. +- name: browser.cache.memory.capacity + type: RelaxedAtomicInt32 +#ifdef ANDROID + value: 1024 +#else + value: -1 +#endif + mirror: always + +# When smartsizing is disabled we could potentially fill all disk space by +# cache data when the disk capacity is not set correctly. To avoid that we +# check the free space every time we write some data to the cache. The free +# space is checked against two limits. Once the soft limit is reached we start +# evicting the least useful entries, when we reach the hard limit writing to +# the entry fails. +- name: browser.cache.disk.free_space_soft_limit + type: RelaxedAtomicUint32 + value: 5 * 1024 # 5MB + mirror: always + +- name: browser.cache.disk.free_space_hard_limit + type: RelaxedAtomicUint32 + value: 1024 # 1MB + mirror: always + +# The number of chunks we preload ahead of read. One chunk currently has +# 256kB. +- name: browser.cache.disk.preload_chunk_count + type: RelaxedAtomicUint32 + value: 4 # 1 MB of read ahead + mirror: always + +# Max-size (in KB) for entries in disk cache. Set to -1 for no limit. +# (Note: entries bigger than 1/8 of disk-cache are never cached) +- name: browser.cache.disk.max_entry_size + type: RelaxedAtomicUint32 + value: 50 * 1024 # 50 MB + mirror: always + +# Max-size (in KB) for entries in memory cache. Set to -1 for no limit. +# (Note: entries bigger than than 90% of the mem-cache are never cached.) +- name: browser.cache.memory.max_entry_size + type: RelaxedAtomicInt32 + value: 5 * 1024 + mirror: always + +# Memory limit (in kB) for new cache data not yet written to disk. Writes to +# the cache are buffered and written to disk on background with low priority. +# With a slow persistent storage these buffers may grow when data is coming +# fast from the network. When the amount of unwritten data is exceeded, new +# writes will simply fail. We have two buckets, one for important data +# (priority) like html, css, fonts and js, and one for other data like images, +# video, etc. +# Note: 0 means no limit. +- name: browser.cache.disk.max_chunks_memory_usage + type: RelaxedAtomicUint32 + value: 40 * 1024 + mirror: always +- name: browser.cache.disk.max_priority_chunks_memory_usage + type: RelaxedAtomicUint32 + value: 40 * 1024 + mirror: always + +# Number of seconds the cache spends writing pending data and closing files +# after shutdown has been signalled. Past that time data is not written and +# files are left open for the OS to clean up. +- name: browser.cache.max_shutdown_io_lag + type: RelaxedAtomicUint32 + value: 2 + mirror: always + +# A percentage limit for media content type in the disk cache. When some entries +# need to be evicted and media is over the limit, it's evicted first. +- name: browser.cache.disk.content_type_media_limit + type: RelaxedAtomicInt32 + value: 50 + mirror: always + +# How often to validate document in cache +# 0 = once-per-session, +# 1 = each-time, +# 2 = never, +# 3 = when-appropriate/automatically +- name: browser.cache.check_doc_frequency + type: RelaxedAtomicUint32 + value: 3 + mirror: always + +- name: browser.contentblocking.database.enabled + type: bool + value: false + mirror: always + +# How many recent block/unblock actions per origins we remember in the +# Content Blocking log for each top-level window. +- name: browser.contentblocking.originlog.length + type: uint32_t + value: 32 + mirror: always + +- name: browser.display.background_color + type: String + value: "#FFFFFF" + mirror: never + +# 0 = always, except in high contrast mode +# 1 = always +# 2 = never +# +# Default to 0 on windows, 1 elsewhere. +- name: browser.display.document_color_use + type: RelaxedAtomicUint32 +#ifdef XP_WIN + value: 0 +#else + value: 1 +#endif + mirror: always + rust: true + +# This pref dictates whether or not backplates and background images +# are to be drawn, when in high-contrast mode: +# false: do not draw backplates or render background images +# true: render background images and draw backplates +# This condition is only considered when high-contrast mode is enabled +# in Firefox, ie. when the user has: +# (1) mUseAccessibilityMode set to true (Widows high-contrast mode is on) +# AND browser.display.document_color_use set to 0 +# (only with high-contrast themes) OR +# (2) browser.display.document_color_use set to 2 (always) +- name: browser.display.permit_backplate + type: RelaxedAtomicBool + value: true + mirror: always + rust: true + +# Whether we should suppress the background-image of the canvas (the root +# frame) if we're in forced colors mode. +# +# This is important because some sites use background-image with a plain color +# and it causes undesirable results in high-contrast mode. +# +# See bug 1614921 for example. +- name: browser.display.suppress_canvas_background_image_on_forced_colors + type: bool + value: true + mirror: always + +- name: browser.display.focus_ring_on_anything + type: bool + value: false + mirror: always + +- name: browser.display.focus_ring_width + type: uint32_t + value: 1 + mirror: always + +- name: browser.display.focus_background_color + type: String + value: "#117722" + mirror: never + +# Focus ring border style. +# 0 = solid border, 1 = dotted border +- name: browser.display.focus_ring_style + type: uint32_t + value: 1 + mirror: always + +- name: browser.display.focus_text_color + type: String + value: "#ffffff" + mirror: never +- name: browser.display.foreground_color + type: String + value: "#000000" + mirror: never + +# Whether focus rings are always shown by default. +# +# This is the initial value of nsWindowRoot::mShowFocusRings, but it can be +# overridden by system preferences. For Windows, we start with default-true, +# and by default the UISF_HIDEFOCUS message comes by and sets it to false. +- name: browser.display.show_focus_rings + type: bool +#ifndef XP_WIN + value: false +#else + value: true +#endif + mirror: always + +# Whether we should always enable focus rings after focus was moved by keyboard. +# +# This behavior matches both historical and GTK / Windows focus behavior. +# +# :focus-visible is intended to provide better heuristics than this, so for now +# we make this false whenever layout.css.focus-visible.enabled is enabled by +# default. +- name: browser.display.always_show_rings_after_key_focus + type: bool + value: false + mirror: always + +# In theory: 0 = never, 1 = quick, 2 = always, though we always just use it as +# a bool! +- name: browser.display.use_document_fonts + type: RelaxedAtomicInt32 + value: 1 + mirror: always + rust: true + +- name: browser.display.use_focus_colors + type: bool + value: false + mirror: always + +- name: browser.display.use_system_colors + type: bool + value: false + mirror: always + +- name: browser.dom.window.dump.enabled + type: RelaxedAtomicBool + value: @IS_NOT_MOZILLA_OFFICIAL@ + mirror: always + +- name: browser.download.sanitize_non_media_extensions + type: bool + value: true + mirror: always + +# Image document's automatic image sizing. +- name: browser.enable_automatic_image_resizing + type: bool + value: true + mirror: always + +# Image document's click-to-resize. +- name: browser.enable_click_image_resizing + type: bool + value: @IS_NOT_ANDROID@ + mirror: always + +# The max url length we'll store in history. +# +# The default value is mostly a guess based on various facts: +# +# * IE didn't support urls longer than 2083 chars +# * Sitemaps protocol used to support a maximum of 2048 chars +# * Various SEO guides suggest to not go over 2000 chars +# * Various apps/services are known to have issues over 2000 chars +# * RFC 2616 - HTTP/1.1 suggests being cautious about depending +# on URI lengths above 255 bytes +# +- name: browser.history.maxUrlLength + type: uint32_t + value: 2000 + mirror: always + +# Render animations and videos as a solid color +- name: browser.measurement.render_anims_and_video_solid + type: RelaxedAtomicBool + value: false + mirror: always + +- name: browser.navigation.requireUserInteraction + type: bool + value: false + mirror: always + +# Indicates if about:newtab shows content (enabled) or just blank. +- name: browser.newtabpage.enabled + type: bool + value: true + mirror: always + +# Open PDFs in Edge with the --app flag if it is the default. +- name: browser.pdf.launchDefaultEdgeAsApp + type: bool + value: true + mirror: always + +# Force usage of in-memory (rather than file on disk) media cache for video streaming when private browsing +- name: browser.privatebrowsing.forceMediaMemoryCache + type: bool + value: false + mirror: always + +# Blocked plugin content +- name: browser.safebrowsing.blockedURIs.enabled + type: bool + value: true + mirror: always + +# Malware protection +- name: browser.safebrowsing.malware.enabled + type: bool + value: true + mirror: always + +# Password protection +- name: browser.safebrowsing.passwords.enabled + type: bool + value: false + mirror: always + +# Phishing protection +- name: browser.safebrowsing.phishing.enabled + type: bool + value: true + mirror: always + +# Maximum size for an array to store the safebrowsing prefixset. +- name: browser.safebrowsing.prefixset_max_array_size + type: RelaxedAtomicUint32 + value: 512*1024 + mirror: always + +# ContentSessionStore prefs +# Maximum number of bytes of DOMSessionStorage data we collect per origin. +- name: browser.sessionstore.dom_storage_limit + type: uint32_t + value: 2048 + mirror: always + +# If set, use DocumentChannel to directly initiate loads entirely +# from parent-process BrowsingContexts +- name: browser.tabs.documentchannel.parent-controlled + type: bool + value: false + mirror: always + +- name: browser.tabs.remote.desktopbehavior + type: bool + value: false + mirror: always + +- name: browser.tabs.remote.force-paint + type: bool + value: true + mirror: always + +# When this pref is enabled document loads with a mismatched +# Cross-Origin-Embedder-Policy header will fail to load +- name: browser.tabs.remote.useCrossOriginEmbedderPolicy + type: RelaxedAtomicBool +#if !defined(ANDROID) + value: true +#else + value: false # Blocked by DocumentChannel, see Bug 1589982. +#endif + mirror: always + +# When this pref is enabled top level loads with a mismatched +# Cross-Origin-Opener-Policy header will be loaded in a separate process. +- name: browser.tabs.remote.useCrossOriginOpenerPolicy + type: RelaxedAtomicBool +#if !defined(ANDROID) + value: true +#else + value: false # Blocked by DocumentChannel, see Bug 1589982. +#endif + mirror: always + +# When true, zooming will be enabled on all sites, even ones that declare +# user-scalable=no. +- name: browser.ui.zoom.force-user-scalable + type: RelaxedAtomicBool + value: false + mirror: always + +- name: browser.underline_anchors + type: bool + value: true + mirror: always + +- name: browser.viewport.desktopWidth + type: RelaxedAtomicInt32 + value: 980 + mirror: always + +- name: browser.visited_color + type: String + value: "#551A8B" + mirror: never + +#--------------------------------------------------------------------------- +# Prefs starting with "canvas." +#--------------------------------------------------------------------------- + +# Limit for the canvas image cache. 0 means unlimited. +- name: canvas.image.cache.limit + type: int32_t + value: 0 + mirror: always + +# Add support for canvas path objects +- name: canvas.path.enabled + type: bool + value: true + mirror: always + +- name: canvas.capturestream.enabled + type: bool + value: true + mirror: always + +# Is support for CanvasRenderingContext2D.filter enabled? +- name: canvas.filters.enabled + type: bool + value: true + mirror: always + +# Provide ability to turn on support for canvas focus rings. +- name: canvas.focusring.enabled + type: bool + value: true + mirror: always + +# Is support for CanvasRenderingContext2D's hitRegion APIs enabled? +- name: canvas.hitregions.enabled + type: bool + value: false + mirror: always + +# Is support for CanvasRenderingContext2D's createConicGradient API enabled? +- name: canvas.createConicGradient.enabled + type: RelaxedAtomicBool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +# Provide ability to turn on support for canvas mozGetAsFile API. +- name: canvas.mozgetasfile.enabled + type: bool + value: false + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "channelclassifier." +#--------------------------------------------------------------------------- + +- name: channelclassifier.allowlist_example + type: bool + value: false + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "clipboard." +#--------------------------------------------------------------------------- + +# Clipboard behavior. +- name: clipboard.autocopy + type: bool +#if !defined(ANDROID) && !defined(XP_MACOSX) && defined(XP_UNIX) + value: true +#else + value: false +#endif + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "consoleservice." +#--------------------------------------------------------------------------- + +#if defined(ANDROID) + # Disable sending console to logcat on release builds. +- name: consoleservice.logcat + type: RelaxedAtomicBool + value: @IS_NOT_RELEASE_OR_BETA@ + mirror: always +#endif + +#--------------------------------------------------------------------------- +# Prefs starting with "content." +#--------------------------------------------------------------------------- + +- name: content.cors.disable + type: bool + value: false + mirror: always + +# Back off timer notification after count. +# -1 means never. +- name: content.notify.backoffcount + type: int32_t + value: -1 + mirror: always + +# Notification interval in microseconds. +# The notification interval has a dramatic effect on how long it takes to +# initially display content for slow connections. The current value +# provides good incremental display of content without causing an increase +# in page load time. If this value is set below 1/10 of a second it starts +# to impact page load performance. +# See bugzilla bug 72138 for more info. +- name: content.notify.interval + type: int32_t + value: 120000 + mirror: always + +# Do we notify based on time? +- name: content.notify.ontimer + type: bool + value: true + mirror: always + +# How many times to deflect in interactive mode. +- name: content.sink.interactive_deflect_count + type: int32_t + value: 0 + mirror: always + +# How many times to deflect in perf mode. +- name: content.sink.perf_deflect_count + type: int32_t + value: 200 + mirror: always + +# Parse mode for handling pending events. +# 0 = don't check for pending events +# 1 = don't deflect if there are pending events +# 2 = bail if there are pending events +- name: content.sink.pending_event_mode + type: int32_t +# ifdef XP_WIN + value: 1 +# else + value: 0 +# endif + mirror: always + +# How often to probe for pending events. 1 = every token. +- name: content.sink.event_probe_rate + type: int32_t + value: 1 + mirror: always + +# How long to stay off the event loop in interactive mode. +- name: content.sink.interactive_parse_time + type: int32_t + value: 3000 + mirror: always + +# How long to stay off the event loop in perf mode. +- name: content.sink.perf_parse_time + type: int32_t + value: 360000 + mirror: always + +# How long to be in interactive mode after an event. +- name: content.sink.interactive_time + type: uint32_t + value: 750000 + mirror: always + +# How long to stay in perf mode after initial loading. +- name: content.sink.initial_perf_time + type: uint32_t + value: 2000000 + mirror: always + +# Should we switch between perf-mode and interactive-mode? +# 0 = Switch +# 1 = Interactive mode +# 2 = Perf mode +- name: content.sink.enable_perf_mode + type: int32_t + value: 0 + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "converter." +#--------------------------------------------------------------------------- + +# Whether we include ruby annotation in the text despite whether it +# is requested. This was true because we didn't explicitly strip out +# annotations. Set false by default to provide a better behavior, but +# we want to be able to pref-off it if user doesn't like it. +- name: converter.html2txt.always_include_ruby + type: bool + value: false + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "datareporting." +#--------------------------------------------------------------------------- + +- name: datareporting.healthreport.uploadEnabled + type: RelaxedAtomicBool + value: false + mirror: always + rust: true + +#--------------------------------------------------------------------------- +# Prefs starting with "device." +#--------------------------------------------------------------------------- + +# Is support for the device sensors API enabled? +- name: device.sensors.enabled + type: bool + value: true + mirror: always + +- name: device.sensors.ambientLight.enabled + type: bool + value: false + mirror: always + +- name: device.sensors.motion.enabled + type: bool + value: true + mirror: always + +- name: device.sensors.orientation.enabled + type: bool + value: true + mirror: always + +- name: device.sensors.proximity.enabled + type: bool + value: false + mirror: always + +- name: device.sensors.test.events + type: bool + value: false + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "devtools." +#--------------------------------------------------------------------------- + +# Tells if DevTools have been explicitely enabled by the user. This pref +# allows to disable all features related to DevTools for users that never use +# them. Until bug 1361080 lands, we always consider them enabled. +- name: devtools.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +- name: devtools.console.stdout.chrome + type: RelaxedAtomicBool + value: @IS_NOT_MOZILLA_OFFICIAL@ + mirror: always + +- name: devtools.console.stdout.content + type: RelaxedAtomicBool + value: false + mirror: always + +- name: devtools.toolbox.force-chrome-prefs + type: RelaxedAtomicBool + value: true + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "docshell." +#--------------------------------------------------------------------------- + +# Used to indicate whether session history listeners should be notified +# about content viewer eviction. Used only for testing. +- name: docshell.shistory.testing.bfevict + type: bool + value: false + mirror: always + +# If true, pages with an opener won't be bfcached. +- name: docshell.shistory.bfcache.require_no_opener + type: bool + value: false + mirror: always + +# If true, page with beforeunload or unload event listeners can be bfcached. +- name: docshell.shistory.bfcache.allow_unload_listeners + type: bool + value: false + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "dom." +#--------------------------------------------------------------------------- + +# Whether window.mozPaintCount is exposed to the web. +- name: dom.mozPaintCount.enabled + type: bool + value: false + mirror: always + +# Allow cut/copy +- name: dom.allow_cut_copy + type: bool + value: true + mirror: always + +- name: dom.allow_XUL_XBL_for_file + type: bool + value: false + mirror: always + +# Checks if offscreen animation throttling is enabled. +- name: dom.animations.offscreen-throttling + type: bool + value: true + mirror: always + +# Is support for automatically removing replaced filling animations enabled? +- name: dom.animations-api.autoremove.enabled + type: bool + value: true + mirror: always + +# Is support for composite operations from the Web Animations API enabled? +- name: dom.animations-api.compositing.enabled + type: bool + value: true + mirror: always + +# Is support for the core interfaces of Web Animations API enabled? +- name: dom.animations-api.core.enabled + type: bool + value: true + mirror: always + +# Is support for Document.getAnimations() and Element.getAnimations() +# supported? +- name: dom.animations-api.getAnimations.enabled + type: bool + value: true + mirror: always + +# Is support for animations from the Web Animations API without 0%/100% +# keyframes enabled? +- name: dom.animations-api.implicit-keyframes.enabled + type: bool + value: true + mirror: always + +# Is support for timelines from the Web Animations API enabled? +- name: dom.animations-api.timelines.enabled + type: bool + value: true + mirror: always + +# Synchronize transform animations with geometric animations on the +# main thread. +- name: dom.animations.mainthread-synchronization-with-geometric-animations + type: bool + value: @IS_NOT_NIGHTLY_BUILD@ + mirror: always + +# Is support for AudioWorklet enabled? +- name: dom.audioworklet.enabled + type: bool + value: true + mirror: always + +# Is support for Navigator.getBattery enabled? +- name: dom.battery.enabled + type: bool + value: true + mirror: always + +# Block multiple external protocol URLs in iframes per single event. +- name: dom.block_external_protocol_in_iframes + type: bool + value: true + mirror: always + +# Block Insecure downloads from Secure Origins +- name: dom.block_download_insecure + type: bool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +# Block all downloads in iframes with the sandboxed attribute +- name: dom.block_download_in_sandboxed_iframes + type: bool + value: true + mirror: always + +# Block multiple window.open() per single event. +- name: dom.block_multiple_popups + type: bool + value: true + mirror: always + +# The maximum number of popup that is allowed to be opened. Set to -1 for no +# limit. +- name: dom.popup_maximum + type: int32_t + value: 20 + mirror: always + +# Whether window.location.reload() and window.history.go(0) should be blocked +# if called directly from a window resize event handler. +# +# This used to be necessary long ago to prevent terrible UX when using stuff +# like TypeAheadFind (bug 258917), but it also causes compat issues on mobile +# (bug 1570566). +# +# So for now disable it on Android and Desktop Nightly, to see if we have any +# desktop regression before removing it completely. Note that this means that +# non-nightly RDM behaves different than Android in this case. +- name: dom.block_reload_from_resize_event_handler + type: bool +#if defined(MOZ_WIDGET_ANDROID) || defined(NIGHTLY_BUILD) + value: false +#else + value: true +#endif + mirror: always + +# SW Cache API +- name: dom.caches.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +- name: dom.caches.testing.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +# Disable capture attribute for input elements; only supported on GeckoView. +- name: dom.capture.enabled + type: bool + value: false + mirror: always + +# Allow control characters appear in composition string. +# When this is false, control characters except +# CHARACTER TABULATION (horizontal tab) are removed from +# both composition string and data attribute of compositionupdate +# and compositionend events. +- name: dom.compositionevent.allow_control_characters + type: bool + value: false + mirror: always + +# Is support for CSSPseudoElement enabled? +- name: dom.css_pseudo_element.enabled + type: bool + value: false + mirror: always + +# After how many seconds we allow external protocol URLs in iframe when not in +# single events +- name: dom.delay.block_external_protocol_in_iframes + type: uint32_t + value: 10 # in seconds + mirror: always + +# Whether the above pref has any effect at all. +- name: dom.delay.block_external_protocol_in_iframes.enabled + type: bool + value: @IS_NOT_NIGHTLY_BUILD@ + mirror: always + +# HTML <dialog> element +- name: dom.dialog_element.enabled + type: bool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +# Only propagate the open window click permission if the setTimeout() is equal +# to or less than this value. +- name: dom.disable_open_click_delay + type: int32_t + value: 1000 + mirror: always + +- name: dom.disable_open_during_load + type: bool + value: false + mirror: always + +- name: dom.disable_beforeunload + type: bool + value: false + mirror: always + +- name: dom.require_user_interaction_for_beforeunload + type: bool + value: true + mirror: always + +# If set this to true, `Document.execCommand` may be performed nestedly. +# Otherwise, nested calls just return false. +- name: dom.document.exec_command.nested_calls_allowed + type: bool + value: false + mirror: always + +- name: dom.enable_window_print + type: bool + value: @IS_NOT_ANDROID@ + mirror: always + +- name: dom.element.transform-getters.enabled + type: bool + value: false + mirror: always + +# Is support for Performance.mozMemory enabled? +- name: dom.enable_memory_stats + type: bool + value: false + mirror: always + +# Enable Performance API +# Whether nonzero values can be returned from performance.timing.* +- name: dom.enable_performance + type: RelaxedAtomicBool + value: true + mirror: always + +# Enable Performance Observer API +- name: dom.enable_performance_observer + type: RelaxedAtomicBool + value: true + mirror: always + +# Whether resource timing will be gathered and returned by performance.GetEntries* +- name: dom.enable_resource_timing + type: bool + value: true + mirror: always + +# Whether performance.GetEntries* will contain an entry for the active document +- name: dom.enable_performance_navigation_timing + type: bool + value: true + mirror: always + +# If this is true, it's allowed to fire "cut", "copy" and "paste" events. +# Additionally, "input" events may expose clipboard content when inputType +# is "insertFromPaste" or something. +- name: dom.event.clipboardevents.enabled + type: bool + value: true + mirror: always + +# Whether touch event listeners are passive by default. +- name: dom.event.default_to_passive_touch_listeners + type: bool + value: true + mirror: always + +# Whether wheel listeners are passive by default. +- name: dom.event.default_to_passive_wheel_listeners + type: bool + value: true + mirror: always + +# Whether WheelEvent should return pixels instead of lines for +# WheelEvent.deltaX/Y/Z, when deltaMode hasn't been checked. +# +# Other browsers don't use line deltas and websites forget to check for it, see +# bug 1392460. +- name: dom.event.wheel-deltaMode-lines.disabled + type: bool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +# Mostly for debugging. Whether we should do the same as +# dom.event.wheel-deltaMode-lines.disabled, but unconditionally rather than +# only when deltaMode hasn't been checked. +- name: dom.event.wheel-deltaMode-lines.always-disabled + type: bool + value: false + mirror: always + +# When dom.event.wheel-deltaMode-lines.disabled is true, this is the lines to +# pixels multiplier that gets used. +# +# The value here is taken from PIXELS_PER_LINE_SCALE from pdf.js. +- name: dom.event.wheel-deltaMode-lines-to-pixel-scale + type: uint32_t + value: 30 + mirror: always + +#if defined(XP_MACOSX) +# Whether to disable treating ctrl click as right click +- name: dom.event.treat_ctrl_click_as_right_click.disabled + type: bool + value: @IS_NIGHTLY_BUILD@ + mirror: always +#endif + +# Whether .offset{X,Y} for events targeted at SVG nodes returns bounds relative +# to the outer SVG. +- name: dom.events.offset-in-svg-relative-to-svg-root + type: bool + value: true + mirror: always + +# Enable clipboard readText() and writeText() by default +- name: dom.events.asyncClipboard + type: bool + value: true + mirror: always + +# Disable clipboard read() and write() by default +- name: dom.events.asyncClipboard.dataTransfer + type: bool + value: false + mirror: always + +# Should only be enabled in tests. +# Access with Clipboard::IsTestingPrefEnabled(). +- name: dom.events.testing.asyncClipboard + type: bool + value: false + mirror: always + do_not_use_directly: true + +# This pref controls whether or not the `protected` dataTransfer state is +# enabled. If the `protected` dataTransfer stae is disabled, then the +# DataTransfer will be read-only whenever it should be protected, and will not +# be disconnected after a drag event is completed. +- name: dom.events.dataTransfer.protected.enabled + type: bool + value: false + mirror: always + +# User interaction timer interval, in ms +- name: dom.events.user_interaction_interval + type: uint32_t + value: 5000 + mirror: always + +# Whether to try to compress touchmove events on IPC layer. +- name: dom.events.compress.touchmove + type: bool + value: true + mirror: always + +# Whether to expose test interfaces of various sorts +- name: dom.expose_test_interfaces + type: bool + value: false + mirror: always + +- name: dom.fetchObserver.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +# Allow the content process to create a File from a path. This is allowed just +# on parent process, on 'file' Content process, or for testing. +- name: dom.file.createInChild + type: RelaxedAtomicBool + value: false + mirror: always + +# Enable formData event +- name: dom.formdata.event.enabled + type: bool + value: true + mirror: always + +# Support @autocomplete values for form autofill feature. +- name: dom.forms.autocomplete.formautofill + type: bool + value: false + mirror: always + +# This pref just controls whether we format the number with grouping separator +# characters when the internal value is set or updated. It does not stop the +# user from typing in a number and using grouping separators. +- name: dom.forms.number.grouping + type: bool + value: false + mirror: always + +# Enable the form.requestSubmit API +- name: dom.forms.requestsubmit.enabled + type: bool + value: true + mirror: always + +# Whether the Gamepad API is enabled +- name: dom.gamepad.enabled + type: bool + value: true + mirror: always + +# Is Gamepad Extension API enabled? +- name: dom.gamepad.extensions.enabled + type: bool + value: true + mirror: always + +# Is LightIndicator API enabled in Gamepad Extension API? +- name: dom.gamepad.extensions.lightindicator + type: bool + value: false + mirror: always + +# Is MultiTouch API enabled in Gamepad Extension API? +- name: dom.gamepad.extensions.multitouch + type: bool + value: false + mirror: always + +# Is Gamepad vibrate haptic feedback function enabled? +- name: dom.gamepad.haptic_feedback.enabled + type: bool + value: true + mirror: always + +- name: dom.gamepad.non_standard_events.enabled + type: bool + value: @IS_NOT_RELEASE_OR_BETA@ + mirror: always + +- name: dom.gamepad.test.enabled + type: bool + value: false + mirror: always + +# W3C draft ImageCapture API +- name: dom.imagecapture.enabled + type: bool + value: false + mirror: always + +# <img loading="lazy"> +# +# See https://github.com/whatwg/html/pull/3752 +- name: dom.image-lazy-loading.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# The root margin for image lazy loading, defined as four (value, percentage) +# pairs. +# +# (0px, 0px, 0px, 0px) by default, for now. We could also consider an +# adaptative version of this. +- name: dom.image-lazy-loading.root-margin.top + type: float + value: 300 + mirror: always + +- name: dom.image-lazy-loading.root-margin.top.percentage + type: bool + value: false + mirror: always + +- name: dom.image-lazy-loading.root-margin.bottom + type: float + value: 300 + mirror: always + +- name: dom.image-lazy-loading.root-margin.bottom.percentage + type: bool + value: false + mirror: always + +- name: dom.image-lazy-loading.root-margin.left + type: float + value: 300 + mirror: always + +- name: dom.image-lazy-loading.root-margin.left.percentage + type: bool + value: false + mirror: always + +- name: dom.image-lazy-loading.root-margin.right + type: float + value: 300 + mirror: always + +- name: dom.image-lazy-loading.root-margin.right.percentage + type: bool + value: false + mirror: always + +# Enable passing the "storage" option to indexedDB.open. +- name: dom.indexedDB.storageOption.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +# Enable indexedDB in private browsing mode. +- name: dom.indexedDB.privateBrowsing.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +- name: dom.input_events.beforeinput.enabled + type: bool + value: @IS_EARLY_BETA_OR_EARLIER@ + mirror: always + +# Whether innerWidth / innerHeight return rounded or fractional sizes. +# +# NOTE(emilio): Fractional sizes are not web-compatible, see the regressions +# from bug 1676843, but we want to expose the fractional sizes (probably in +# another API) one way or another, see [1], so we're keeping the code for the +# time being. +# +# [1]: https://github.com/w3c/csswg-drafts/issues/5260 +- name: dom.innerSize.rounded + type: bool + value: true + mirror: always + +# Whether we conform to Input Events Level 1 or Input Events Level 2. +# true: conforming to Level 1 +# false: conforming to Level 2 +- name: dom.input_events.conform_to_level_1 + type: bool + value: true + mirror: always + +# Whether we allow BrowsingContextGroup to suspend input events +- name: dom.input_events.canSuspendInBCG.enabled + type: bool + value: false + mirror: always + +# Enable not moving the cursor to end when a text input or textarea has .value +# set to the value it already has. By default, enabled. +- name: dom.input.skip_cursor_move_for_same_value_set + type: bool + value: true + mirror: always + +- name: dom.IntersectionObserver.enabled + type: bool + value: true + mirror: always + +- name: dom.IntersectionObserverExplicitDocumentRoot.enabled + type: bool + value: true + mirror: always + +- name: dom.ipc.cancel_content_js_when_navigating + type: bool + value: true + mirror: always + +# How often to check for CPOW timeouts (ms). CPOWs are only timed +# out by the hang monitor. +- name: dom.ipc.cpow.timeout + type: uint32_t + value: 500 + mirror: always + +#ifdef MOZ_ENABLE_FORKSERVER +- name: dom.ipc.forkserver.enable + type: bool + value: false + mirror: once +#endif + +# Whether or not to collect a paired minidump when force-killing a +# content process. +- name: dom.ipc.tabs.createKillHardCrashReports + type: bool + value: @IS_NOT_RELEASE_OR_BETA@ + mirror: once + +# Allow Flash async drawing mode in 64-bit release builds. +- name: dom.ipc.plugins.asyncdrawing.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# How long we wait before unloading an idle plugin process. +- name: dom.ipc.plugins.unloadTimeoutSecs + type: RelaxedAtomicUint32 + value: 30 + mirror: always + +- name: dom.ipc.plugins.allow_dxgi_surface + type: bool + value: true + mirror: always + +# Enable e10s hang monitoring (slow script checking and plugin hang detection). +- name: dom.ipc.processHangMonitor + type: bool + value: true + mirror: once + +# Whether we report such process hangs +- name: dom.ipc.reportProcessHangs + type: RelaxedAtomicBool +# Don't report hangs in DEBUG builds. They're too slow and often a +# debugger is attached. +#ifdef DEBUG + value: false +#else + value: true +#endif + mirror: always + +- name: dom.ipc.tabs.disabled + type: bool + value: false + mirror: always + +# Process launch delay (in milliseconds). +- name: dom.ipc.processPrelaunch.delayMs + type: uint32_t +# This number is fairly arbitrary ... the intention is to put off +# launching another app process until the last one has finished +# loading its content, to reduce CPU/memory/IO contention. + value: 1000 + mirror: always + +# Process preallocation cache +# Only used in fission; in e10s we use 1 always +- name: dom.ipc.processPrelaunch.fission.number + type: uint32_t + value: 3 + mirror: always + +- name: dom.ipc.processPriorityManager.enabled + type: bool + value: false + mirror: always + +- name: dom.ipc.processPriorityManager.testMode + type: bool + value: false + mirror: always + +- name: dom.ipc.processPriorityManager.backgroundPerceivableGracePeriodMS + type: uint32_t + value: 0 + mirror: always + +- name: dom.ipc.processPriorityManager.backgroundGracePeriodMS + type: uint32_t + value: 0 + mirror: always + +# Is support for HTMLElement.autocapitalize enabled? +- name: dom.forms.autocapitalize + type: bool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +# Support for input type=month, type=week and type=datetime-local. By default, +# disabled. +- name: dom.forms.datetime.others + type: bool + value: @IS_ANDROID@ + mirror: always + +# Is support for HTMLElement.enterKeyHint enabled? +- name: dom.forms.enterkeyhint + type: bool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +# Is support for HTMLElement.inputMode enabled? +- name: dom.forms.inputmode + type: bool +#if defined(ANDROID) + value: true +#else + value: @IS_NOT_RELEASE_OR_BETA@ +#endif + mirror: always + +# Enable Directory API. By default, disabled. +- name: dom.input.dirpicker + type: bool + value: false + mirror: always + +# Whether to allow or disallow web apps to cancel `beforeinput` events caused +# by MozEditableElement#setUserInput() which is used by autocomplete, autofill +# and password manager. +- name: dom.input_event.allow_to_cancel_set_user_input + type: bool + value: false + mirror: always + +# How long a content process can take before closing its IPC channel +# after shutdown is initiated. If the process exceeds the timeout, +# we fear the worst and kill it. +- name: dom.ipc.tabs.shutdownTimeoutSecs + type: RelaxedAtomicUint32 +#if !defined(DEBUG) && !defined(MOZ_ASAN) && !defined(MOZ_VALGRIND) && !defined(MOZ_TSAN) + value: 20 +#else + value: 0 +#endif + mirror: always + +# Whether a native event loop should be used in the content process. +- name: dom.ipc.useNativeEventProcessing.content + type: RelaxedAtomicBool +#if defined(XP_WIN) || defined(XP_MACOSX) + value: false +#else + value: true +#endif + mirror: always + +# If this is true, TextEventDispatcher dispatches keydown and keyup events +# even during composition (keypress events are never fired during composition +# even if this is true). +- name: dom.keyboardevent.dispatch_during_composition + type: bool + value: true + mirror: always + +# If this is true, keypress events for non-printable keys are dispatched only +# for event listeners of the system event group in web content. +- name: dom.keyboardevent.keypress.dispatch_non_printable_keys_only_system_group_in_content + type: bool + value: true + mirror: always + +# If this is true, "keypress" event's keyCode value and charCode value always +# become same if the event is not created/initialized by JS. +- name: dom.keyboardevent.keypress.set_keycode_and_charcode_to_same_value + type: bool + value: true + mirror: always + +# Whether the LinkStyle.sheet and DocumentOrShadowRoot.styleSheets accessor +# exposes in-progress-loading stylesheets. +# +# Historical behavior is `true`, but other browsers (and also a bit of common +# sense) match `false`. +- name: dom.expose-incomplete-stylesheets + type: bool + value: false + mirror: always + +# Whether the Large-Allocation header is enabled. +- name: dom.largeAllocationHeader.enabled + type: bool + value: true + mirror: always + +- name: dom.largeAllocation.forceEnable + type: bool + value: false + mirror: always + +# Whether "W3C Web Manifest" processing is enabled +- name: dom.manifest.enabled + type: bool + value: true + mirror: always + +# Enable mapped array buffer by default. +- name: dom.mapped_arraybuffer.enabled + type: bool + value: true + mirror: always + +# This pref is used to enable/disable the `document.autoplayPolicy` API which +# returns a enum string which presents current autoplay policy and can change +# overtime based on user session activity. +- name: dom.media.autoplay.autoplay-policy-api + type: bool + value: false + mirror: always + +# Media Session API +- name: dom.media.mediasession.enabled + type: bool + value: true + mirror: always + +# Number of seconds of very quiet or silent audio before considering the audio +# inaudible. +- name: dom.media.silence_duration_for_audibility + type: AtomicFloat + value: 2.0f + mirror: always + +- name: dom.menuitem.enabled + type: bool + value: false + mirror: always + +# Enable meta-viewport support in remote APZ-enabled frames. +- name: dom.meta-viewport.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +# Timeout clamp in ms for timeouts we clamp. +- name: dom.min_timeout_value + type: int32_t + value: 4 + mirror: always + +# Timeout clamp in ms for background windows. +- name: dom.min_background_timeout_value + type: int32_t + value: 1000 + mirror: always + +# Timeout clamp in ms for background windows when throttling isn't enabled. +- name: dom.min_background_timeout_value_without_budget_throttling + type: int32_t + value: 1000 + mirror: always + +# Are missing-property use counters for certain DOM attributes enabled? +- name: dom.missing_prop_counters.enabled + type: bool + value: true + mirror: always + +# Is support for module scripts (<script type="module">) enabled for content? +- name: dom.moduleScripts.enabled + type: bool + value: true + mirror: always + +# Whether we disable triggering mutation events for changes to style +# attribute via CSSOM. +# NOTE: This preference is used in unit tests. If it is removed or its default +# value changes, please update test_sharedMap_static_prefs.js accordingly. +- name: dom.mutation-events.cssom.disabled + type: bool + value: true + mirror: always + +# Limit of location change caused by content scripts in a time span per +# BrowsingContext. This includes calls to History and Location APIs. +- name: dom.navigation.locationChangeRateLimit.count + type: uint32_t + value: 200 + mirror: always + +# Time span in seconds for location change rate limit. +- name: dom.navigation.locationChangeRateLimit.timespan + type: uint32_t + value: 10 + mirror: always + +# Network Information API +- name: dom.netinfo.enabled + type: RelaxedAtomicBool + value: @IS_ANDROID@ + mirror: always + +# Whether we should open noopener links in a new process. +- name: dom.noopener.newprocess.enabled + type: bool + value: true + mirror: always + +# Whether we shouldn't show an error page for unknown protocols (and should +# show a console warning instead). +- name: dom.no_unknown_protocol_error.enabled + type: bool + value: true + mirror: always + +# Is support for Window.paintWorklet enabled? +- name: dom.paintWorklet.enabled + type: bool + value: false + mirror: always + +# Enable/disable the PaymentRequest API +- name: dom.payments.request.enabled + type: bool + value: false + mirror: always + +# Whether a user gesture is required to call PaymentRequest.prototype.show(). +- name: dom.payments.request.user_interaction_required + type: bool + value: true + mirror: always + +# Time in milliseconds for PaymentResponse to wait for +# the Web page to call complete(). +- name: dom.payments.response.timeout + type: uint32_t + value: 5000 + mirror: always + +# Enable printing performance marks/measures to log +- name: dom.performance.enable_user_timing_logging + type: RelaxedAtomicBool + value: false + mirror: always + +- name: dom.performance.children_results_ipc_timeout + type: uint32_t + value: 1000 + mirror: always + +# Enable notification of performance timing +- name: dom.performance.enable_notify_performance_timing + type: bool + value: false + mirror: always + +# Is support for PerformanceTiming.timeToContentfulPaint enabled? +- name: dom.performance.time_to_contentful_paint.enabled + type: bool + value: false + mirror: always + +# Is support for PerformanceTiming.timeToDOMContentFlushed enabled? +- name: dom.performance.time_to_dom_content_flushed.enabled + type: bool + value: false + mirror: always + +# Is support for PerformanceTiming.timeToFirstInteractive enabled? +- name: dom.performance.time_to_first_interactive.enabled + type: bool + value: false + mirror: always + +# Is support for PerformanceTiming.timeToNonBlankPaint enabled? +- name: dom.performance.time_to_non_blank_paint.enabled + type: bool + value: false + mirror: always + +# Is support for Permissions.revoke enabled? +- name: dom.permissions.revoke.enable + type: bool + value: false + mirror: always + +# Whether we should show the placeholder when the element is focused but empty. +- name: dom.placeholder.show_on_focus + type: bool + value: true + mirror: always + +# Is support for Element.requestPointerLock enabled? +# This is added for accessibility purpose. When user has no way to exit +# pointer lock (e.g. no keyboard available), they can use this pref to +# disable the Pointer Lock API altogether. +- name: dom.pointer-lock.enabled + type: bool + value: true + mirror: always + +# re-SAB: Whether to allow postMessage of a SharedArrayBuffer if various +# preconditions related to COOP and COEP are met +- name: dom.postMessage.sharedArrayBuffer.withCOOP_COEP + type: bool +#if !defined(ANDROID) + value: true +#else + value: false # Blocked by DocumentChannel, see Bug 1589982. +#endif + mirror: once + +# Overridden in all.js on RELEASE_OR_BETA in order to add the locked attribute. +- name: dom.postMessage.sharedArrayBuffer.bypassCOOP_COEP.insecure.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +# Presentation API +- name: dom.presentation.enabled + type: bool +#if defined(ANDROID) + value: @IS_NOT_RELEASE_OR_BETA@ +#else + value: false +#endif + mirror: always + +- name: dom.presentation.controller.enabled + type: bool +#if defined(ANDROID) + value: @IS_NOT_RELEASE_OR_BETA@ +#else + value: false +#endif + mirror: always + +- name: dom.presentation.receiver.enabled + type: bool +#if defined(ANDROID) + value: @IS_NOT_RELEASE_OR_BETA@ +#else + value: false +#endif + mirror: always + +- name: dom.presentation.testing.simulate-receiver + type: bool + value: false + mirror: always + +# This currently only affects XHTML. For XUL the cache is always allowed. +- name: dom.prototype_document_cache.enabled + type: bool + value: true + mirror: always + +# Push +- name: dom.push.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +# Preference that is primarily used for testing of problematic file paths. +# It can also be used for switching between different storage directories, but +# such feature is not officially supported. +- name: dom.quotaManager.storageName + type: String + value: "storage" + mirror: never + +# Should we try to load origin information from the cache? +# See bug 1563023 for more details. +- name: dom.quotaManager.loadQuotaFromCache + type: RelaxedAtomicBool + value: true + mirror: always + +# Preference that users can set to override temporary storage smart limit +# calculation. +- name: dom.quotaManager.temporaryStorage.fixedLimit + type: RelaxedAtomicInt32 + value: -1 + mirror: always + +# Preference that users can set to override temporary storage smart limit +# calculation. +- name: dom.quotaManager.temporaryStorage.chunkSize + type: RelaxedAtomicUint32 + value: 10 * 1024 + mirror: always + +# A pref that is used to enable testing features. +- name: dom.quotaManager.testing + type: SequentiallyConsistentAtomicBool + value: false + mirror: always + +#ifdef XP_WIN + # Preference that is used to set nsILocalFileWin::useDOSDevicePathSyntax + # attribute for all local file instances created by QuotaManager and its + # clients. The value of this preference is cached so changing the preference + # during runtime has no effect. + # See bug 1626846 for setting this to false by default. +- name: dom.quotaManager.useDOSDevicePathSyntax + type: RelaxedAtomicBool + value: true + mirror: always + do_not_use_directly: true + + # Preference that is used to enable the hack for overrriding xFullPathname in + # TelemetryVFS. +- name: dom.quotaManager.overrideXFullPathname + type: RelaxedAtomicBool + value: true + mirror: always +#endif + +# Reporting API. +- name: dom.reporting.enabled + type: RelaxedAtomicBool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +- name: dom.reporting.testing.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +- name: dom.reporting.featurePolicy.enabled + type: RelaxedAtomicBool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +- name: dom.reporting.crash.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +- name: dom.reporting.header.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +# In seconds. The timeout to remove not-active report-to endpoints. +- name: dom.reporting.cleanup.timeout + type: uint32_t + value: 3600 + mirror: always + +# Any X seconds the reports are dispatched to endpoints. +- name: dom.reporting.delivering.timeout + type: uint32_t + value: 5 + mirror: always + +# How many times the delivering of a report should be tried. +- name: dom.reporting.delivering.maxFailures + type: uint32_t + value: 3 + mirror: always + +# How many reports should be stored in the report queue before being delivered. +- name: dom.reporting.delivering.maxReports + type: uint32_t + value: 100 + mirror: always + +# Enable requestIdleCallback API +- name: dom.requestIdleCallback.enabled + type: bool + value: true + mirror: always + +# Whether to enable the JavaScript start-up cache. This causes one of the first +# execution to record the bytecode of the JavaScript function used, and save it +# in the existing cache entry. On the following loads of the same script, the +# bytecode would be loaded from the cache instead of being generated once more. +- name: dom.script_loader.bytecode_cache.enabled + type: bool + value: true + mirror: always + +# Ignore the heuristics of the bytecode cache, and always record on the first +# visit. (used for testing purposes). + +# Choose one strategy to use to decide when the bytecode should be encoded and +# saved. The following strategies are available right now: +# * -2 : (reader mode) The bytecode cache would be read, but it would never +# be saved. +# * -1 : (eager mode) The bytecode would be saved as soon as the script is +# seen for the first time, independently of the size or last access +# time. +# * 0 : (default) The bytecode would be saved in order to minimize the +# page-load time. +# +# Other values might lead to experimental strategies. For more details, have a +# look at: ScriptLoader::ShouldCacheBytecode function. +- name: dom.script_loader.bytecode_cache.strategy + type: int32_t + value: 0 + mirror: always + +# Is support for decoding external (non-inline) classic or module DOM scripts +# (i.e. anything but workers) as UTF-8, then directly compiling without +# inflating to UTF-16, enabled? +- name: dom.script_loader.external_scripts.utf8_parsing.enabled + type: bool + value: true + mirror: always + +# Enable speculative off main thread parsing of external scripts as +# soon as they are fetched. +- name: dom.script_loader.external_scripts.speculative_omt_parse.enabled + type: bool + value: true + mirror: always + +# Speculatively compile non parser inserted scripts +- name: dom.script_loader.external_scripts.speculate_non_parser_inserted.enabled + type: bool + value: false + mirror: always + +# Speculatively compile async scripts +- name: dom.script_loader.external_scripts.speculate_async.enabled + type: bool + value: false + mirror: always + +# Speculatively compile link preload scripts +- name: dom.script_loader.external_scripts.speculate_link_preload.enabled + type: bool + value: false + mirror: always + +- name: dom.securecontext.whitelist_onions + type: bool + value: false + mirror: always + +# This pref enables Sec-Fetch-* logic and causes corresponding +# request headers to be set. +- name: dom.security.secFetch.enabled + type: RelaxedAtomicBool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +# This pref enables the featurePolicy header support. +- name: dom.security.featurePolicy.header.enabled + type: bool + value: false + mirror: always + +- name: dom.security.featurePolicy.experimental.enabled + type: bool + value: false + mirror: always + +# Expose the 'featurePolicy' attribute in document and HTMLIFrameElement +- name: dom.security.featurePolicy.webidl.enabled + type: bool + value: false + mirror: always + +# For testing purposes only: Flipping this pref to true allows +# to skip the allowlist for about: pages and do not ship with a +# CSP and NS_ASSERT right away. +- name: dom.security.skip_about_page_csp_allowlist_and_assert + type: RelaxedAtomicBool + value: false + mirror: always + +# For testing purposes only: Flipping this pref to true allows +# to skip the assertion that every about page ships with a CSP. +- name: dom.security.skip_about_page_has_csp_assert + type: RelaxedAtomicBool + value: false + mirror: always + +# For testing purposes only: Flipping this pref to true allows +# to skip the assertion that HTML fragments (e.g. innerHTML) can +# not be used within chrome code or about: pages. +- name: dom.security.skip_html_fragment_assertion + type: RelaxedAtomicBool + value: false + mirror: always + +# For testing purposes only; Flipping this pref to true allows +# to skip the assertion that remote scripts can not be loaded +# in system privileged contexts. +- name: dom.security.skip_remote_script_assertion_in_system_priv_context + type: RelaxedAtomicBool + value: false + mirror: always + +# If true, all content requests will get upgraded to HTTPS:// +# (some Firefox functionality requests, like OCSP will not be affected) +- name: dom.security.https_only_mode + type: RelaxedAtomicBool + value: false + mirror: always + +# If true, all content requests in Private Browsing Mode will get +# upgraded to HTTPS://. (If dom.security.https_only_mode is set +# to true then this pref has no effect) +- name: dom.security.https_only_mode_pbm + type: RelaxedAtomicBool + value: false + mirror: always + +# If true, sends http background request for top-level sites to +# counter long timeouts. +- name: dom.security.https_only_mode_send_http_background_request + type: RelaxedAtomicBool + value: true + mirror: always + +# If true and HTTPS-only mode is enabled, requests +# to local IP addresses are also upgraded +- name: dom.security.https_only_mode.upgrade_local + type: RelaxedAtomicBool + value: false + mirror: always + +# If true and HTTPS-only mode is enabled, requests +# to .onion hosts are also upgraded +- name: dom.security.https_only_mode.upgrade_onion + type: RelaxedAtomicBool + value: false + mirror: always + +# WARNING: Don't ever update that pref manually! It is only used +# for telemetry purposes and allows to reason about retention of +# the pref dom.security.https_only_mode from above. +- name: dom.security.https_only_mode_ever_enabled + type: RelaxedAtomicBool + value: false + mirror: always + +# WARNING: Don't ever update that pref manually! It is only used +# for telemetry purposes and allows to reason about retention of +# the pref dom.security.https_only_mode_pbm from above. +- name: dom.security.https_only_mode_ever_enabled_pbm + type: RelaxedAtomicBool + value: false + mirror: always + +- name: dom.security.unexpected_system_load_telemetry_enabled + type: bool + value: true + mirror: always + +# pref controls `Sanitizer` API being exposed +- name: dom.security.sanitizer.enabled + type: bool + value: false + mirror: always + +# Is support for selection event APIs enabled? +- name: dom.select_events.enabled + type: bool + value: true + mirror: always + +# Whether or not selection events on text controls are enabled. +- name: dom.select_events.textcontrols.enabled + type: bool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +- name: dom.separate_event_queue_for_post_message.enabled + type: bool + value: true + mirror: always + +- name: dom.arena_allocator.enabled + type: bool + value: true + mirror: once + +- name: dom.serviceWorkers.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +# If true. then the service worker interception and the ServiceWorkerManager +# will live in the parent process. This only takes effect on browser start. +- name: dom.serviceWorkers.parent_intercept + type: bool + value: true + mirror: never + +- name: dom.serviceWorkers.testing.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +- name: dom.workers.serialized-sab-access + type: RelaxedAtomicBool + value: false + mirror: always + +# Whether automatic storage access granting heuristics should be turned on. +- name: dom.storage_access.auto_grants + type: bool + value: true + mirror: always + +- name: dom.storage_access.auto_grants.delayed + type: bool + value: true + mirror: always + +# Storage-access API. +- name: dom.storage_access.enabled + type: bool + value: false + mirror: always + +# The maximum number of origins that a given third-party tracker is allowed +# to have concurrent access to before the user is presented with a storage +# access prompt. Only effective when the auto_grants pref is turned on. +- name: dom.storage_access.max_concurrent_auto_grants + type: int32_t + value: 5 + mirror: always + +# Enable Storage API for all platforms except Android. +- name: dom.storageManager.enabled + type: RelaxedAtomicBool + value: @IS_NOT_ANDROID@ + mirror: always + +# Should we abort LocalStorage requests when a sync message from parent is +# detected? +# +# LocalStorage is a synchronous API involving sync IPC from the child to the +# parent. Accessibility interfaces currently also involve different forms of +# synchronous parent-to-child communication. (See bug 1516136 comment 11 and +# comment 15.) Although LocalStorage NextGen no longer needs to consult the +# main thread, thereby eliminating the possibility of deadlock, the browser is +# very complex and so we have retained a fail-safe mechanism that will cause +# blocking LocalStorage operations to abort on synchronous IPC from the parent +# to the child. +# +# We are disabling this fail-safe mechanism because it is fundamentally visible +# to content when activated. When we abort the synchronous LocalStorage +# operation we throw an error which has the potential to break web content. +# This is not a hypothetical. In bug 1574569 content broke due to accessibility +# path aborting the LS call, but the LS call didn't need to abort because it +# was not at risk of deadlock. +# +# But we are retaining the preference in the event that regressions occur +# anywhere in the code-base that could cause a cascade that would result in +# deadlock. (There have been logic bugs in components that resulted in +# PBackground synchronously blocking in a way that could result in deadlock.) +# This allows us to re-enable the fail-safe with only a pref flip. +- name: dom.storage.abort_on_sync_parent_to_child_messages + type: bool + value: false + mirror: always + +# LocalStorage data limit as determined by summing up the lengths of all string +# keys and values. This is consistent with the legacy implementation and other +# browser engines. This value should really only ever change in unit testing +# where being able to lower it makes it easier for us to test certain edge +# cases. Measured in KiBs. +- name: dom.storage.default_quota + type: RelaxedAtomicUint32 + # Only allow relatively small amounts of data since performance of the + # synchronous IO is very bad. We are enforcing simple per-origin quota only. + value: 5 * 1024 + mirror: always + +# Per-site quota for legacy LocalStorage implementation. +- name: dom.storage.default_site_quota + type: RelaxedAtomicUint32 + value: 25 * 1024 + mirror: always + +# Whether or not LSNG (Next Generation Local Storage) is enabled. +# See bug 1517090 for enabling this on Nightly. +# See bug 1534736 for changing it to EARLY_BETA_OR_EARLIER. +# See bug 1539835 for enabling this unconditionally. +# See bug 1619948 for changing it back to EARLY_BETA_OR_EARLIER. +- name: dom.storage.next_gen + type: RelaxedAtomicBool + value: @IS_EARLY_BETA_OR_EARLIER@ + mirror: always + do_not_use_directly: true + +# Is support for Storage test APIs enabled? +- name: dom.storage.testing + type: bool + value: false + mirror: always + +# For area and anchor elements with target=_blank and no rel set to +# opener/noopener. +- name: dom.targetBlankNoOpener.enabled + type: bool + value: true + mirror: always + +# Is support for Selection.GetRangesForInterval enabled? +- name: dom.testing.selection.GetRangesForInterval + type: bool + value: false + mirror: always + +- name: dom.testing.structuredclonetester.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +- name: dom.testing.sync-content-blocking-notifications + type: bool + value: false + mirror: always + +- name: dom.textMetrics.actualBoundingBox.enabled + type: bool + value: true + mirror: always + +- name: dom.textMetrics.baselines.enabled + type: bool + value: false + mirror: always + +- name: dom.textMetrics.emHeight.enabled + type: bool + value: false + mirror: always + +- name: dom.textMetrics.fontBoundingBox.enabled + type: bool + value: false + mirror: always + +# Time (in ms) that it takes to regenerate 1ms. +- name: dom.timeout.background_budget_regeneration_rate + type: int32_t + value: 100 + mirror: always + +# Time (in ms) that it takes to regenerate 1ms. +- name: dom.timeout.foreground_budget_regeneration_rate + type: int32_t + value: 1 + mirror: always + +# Maximum value (in ms) for the background budget. Only valid for +# values greater than 0. +- name: dom.timeout.background_throttling_max_budget + type: int32_t + value: 50 + mirror: always + +# Maximum value (in ms) for the foreground budget. Only valid for +# values greater than 0. +- name: dom.timeout.foreground_throttling_max_budget + type: int32_t + value: -1 + mirror: always + +# The maximum amount a timeout can be delayed by budget throttling. +- name: dom.timeout.budget_throttling_max_delay + type: int32_t + value: 15000 + mirror: always + +# Turn on budget throttling by default. +- name: dom.timeout.enable_budget_timer_throttling + type: bool + value: true + mirror: always + +# Should we defer timeouts and intervals while loading a page. Released +# on Idle or when the page is loaded. +- name: dom.timeout.defer_during_load + type: bool + value: true + mirror: always + +# Maximum amount of time in milliseconds consecutive setTimeout()/setInterval() +# callback are allowed to run before yielding the event loop. +- name: dom.timeout.max_consecutive_callbacks_ms + type: uint32_t + value: 4 + mirror: always + +# Maximum deferral time for setTimeout/Interval in milliseconds +- name: dom.timeout.max_idle_defer_ms + type: uint32_t + value: 10*1000 + mirror: always + +# Delay in ms from document load until we start throttling background timeouts. +- name: dom.timeout.throttling_delay + type: int32_t + value: 30000 + mirror: always + +# UDPSocket API +- name: dom.udpsocket.enabled + type: bool + value: false + mirror: always + +# Time limit, in milliseconds, for user gesture transient activation. +- name: dom.user_activation.transient.timeout + type: uint32_t + value: 5000 + mirror: always + +# Whether to shim a Components object on untrusted windows. +- name: dom.use_components_shim + type: bool + value: @IS_NOT_NIGHTLY_BUILD@ + mirror: always + +- name: dom.vibrator.enabled + type: bool + value: true + mirror: always + +- name: dom.vibrator.max_vibrate_ms + type: uint32_t + value: 10000 + mirror: always + +- name: dom.vibrator.max_vibrate_list_len + type: uint32_t + value: 128 + mirror: always + +# Is support for Window.visualViewport enabled? +- name: dom.visualviewport.enabled + type: bool + value: false + mirror: always + +# Is support for WebVR APIs enabled? +# Enabled by default in beta and release for Windows and OS X and for all +# platforms in nightly and aurora. +- name: dom.vr.enabled + type: RelaxedAtomicBool +#if defined(XP_WIN) || defined(XP_DARWIN) || !defined(RELEASE_OR_BETA) + value: true +#else + value: false +#endif + mirror: always + +# Should VR sessions always be reported as supported, without first +# checking for VR runtimes? This will prevent permission prompts +# from being suppressed on machines without VR runtimes and cause +# navigatior.xr.isSessionSupported to always report that immersive-vr +# is supported. +- name: dom.vr.always_support_vr + type: RelaxedAtomicBool + value: false + mirror: always + +# Should AR sessions always be reported as supported, without first +# checking for AR runtimes? This will prevent permission prompts +# from being suppressed on machines without AR runtimes and cause +# navigatior.xr.isSessionSupported to always report that immersive-ar +# is supported. +- name: dom.vr.always_support_ar + type: RelaxedAtomicBool + value: false + mirror: always + +# It is often desirable to automatically start vr presentation when +# a user puts on the VR headset. This is done by emitting the +# Window.vrdisplayactivate event when the headset's sensors detect it +# being worn. This can result in WebVR content taking over the headset +# when the user is using it outside the browser or inadvertent start of +# presentation due to the high sensitivity of the proximity sensor in some +# headsets, so it is off by default. +- name: dom.vr.autoactivate.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +# Minimum number of milliseconds that the browser will wait before +# attempting to poll again for connected VR controllers. The browser +# will not attempt to poll for VR controllers until it needs to use them. +- name: dom.vr.controller.enumerate.interval + type: RelaxedAtomicInt32 + value: 1000 + mirror: always + +# The threshold value of trigger inputs for VR controllers. +- name: dom.vr.controller_trigger_threshold + type: AtomicFloat + value: 0.1f + mirror: always + +# Minimum number of milliseconds that the browser will wait before +# attempting to poll again for connected VR displays. The browser +# will not attempt to poll for VR displays until it needs to use +# them, such as when detecting a WebVR site. +- name: dom.vr.display.enumerate.interval + type: RelaxedAtomicInt32 + value: 5000 + mirror: always + +# The number of milliseconds since last frame start before triggering a new +# frame. When content is failing to submit frames on time or the lower level +# VR platform APIs are rejecting frames, it determines the rate at which RAF +# callbacks will be called. +- name: dom.vr.display.rafMaxDuration + type: RelaxedAtomicUint32 + value: 50 + mirror: always + +# Minimum number of milliseconds the browser will wait before attempting +# to re-start the VR service after an enumeration returned no devices. +- name: dom.vr.external.notdetected.timeout + type: RelaxedAtomicInt32 + value: 60000 + mirror: always + +# Minimum number of milliseconds the browser will wait before attempting +# to re-start the VR service after a VR API (eg, OpenVR or Oculus) +# requests that we shutdown and unload its libraries. +# To ensure that we don't interfere with VR runtime software auto-updates, +# we will not attempt to re-load the service until this timeout has elapsed. +- name: dom.vr.external.quit.timeout + type: RelaxedAtomicInt32 + value: 10000 + mirror: always + +# Minimum number of milliseconds that the VR session will be kept +# alive after the browser and content no longer are using the +# hardware. If a VR multitasking environment, this should be set +# very low or set to 0. +- name: dom.vr.inactive.timeout + type: RelaxedAtomicInt32 + value: 5000 + mirror: always + +# Maximum number of milliseconds the browser will wait for content to call +# VRDisplay.requestPresent after emitting vrdisplayactivate during VR +# link traversal. This prevents a long running event handler for +# vrdisplayactivate from later calling VRDisplay.requestPresent, which would +# result in a non-responsive browser in the VR headset. +- name: dom.vr.navigation.timeout + type: RelaxedAtomicInt32 + value: 5000 + mirror: always + +# Oculus device +- name: dom.vr.oculus.enabled + type: RelaxedAtomicBool +#if defined(HAVE_64BIT_BUILD) && !defined(ANDROID) + # We are only enabling WebVR by default on 64-bit builds (Bug 1384459). + value: true +#else + # On Android, this pref is irrelevant. + value: false +#endif + mirror: always + +# When enabled, Oculus sessions may be created with the ovrInit_Invisible +# flag if a page is using tracking but not presenting. When a page +# begins presenting VR frames, the session will be re-initialized without +# the flag. This eliminates the "Firefox not responding" warnings in +# the headset, but might not be compatible with all versions of the Oculus +# runtime. +- name: dom.vr.oculus.invisible.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# Minimum number of milliseconds after content has stopped VR presentation +# before the Oculus session is re-initialized to an invisible / tracking +# only mode. If this value is too high, users will need to wait longer +# after stopping WebVR presentation before automatically returning to the +# Oculus home interface. (They can immediately return to the Oculus Home +# interface through the Oculus HUD without waiting this duration) +# If this value is too low, the Oculus Home interface may be visible +# momentarily during VR link navigation. +- name: dom.vr.oculus.present.timeout + type: RelaxedAtomicInt32 + value: 500 + mirror: always + +# OpenVR device +- name: dom.vr.openvr.enabled + type: RelaxedAtomicBool +#if !defined(HAVE_64BIT_BUILD) && !defined(ANDROID) + # We are only enabling WebVR by default on 64-bit builds (Bug 1384459). + value: false +#elif defined(XP_WIN) || defined(XP_MACOSX) + # We enable OpenVR by default for Windows and macOS. + value: true +#else + # See Bug 1310663 (Linux). On Android, this pref is irrelevant. + value: false +#endif + mirror: always + +# OSVR device +- name: dom.vr.osvr.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +# Pose prediction reduces latency effects by returning future predicted HMD +# poses to callers of the WebVR API. This currently only has an effect for +# Oculus Rift on SDK 0.8 or greater. +- name: dom.vr.poseprediction.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# Enable a separate process for VR module. +- name: dom.vr.process.enabled + type: bool +#if defined(XP_WIN) + value: true +#else + value: false +#endif + mirror: once + +- name: dom.vr.process.startup_timeout_ms + type: int32_t + value: 5000 + mirror: once + +# Puppet device, used for simulating VR hardware within tests and dev tools. +- name: dom.vr.puppet.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +# Starting VR presentation is only allowed within a user gesture or event such +# as VRDisplayActivate triggered by the system. dom.vr.require-gesture allows +# this requirement to be disabled for special cases such as during automated +# tests or in a headless kiosk system. +- name: dom.vr.require-gesture + type: RelaxedAtomicBool + value: true + mirror: always + +# Is support for WebXR APIs enabled? +- name: dom.vr.webxr.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +# W3C draft pointer events +- name: dom.w3c_pointer_events.enabled + type: RelaxedAtomicBool + value: @IS_NOT_ANDROID@ + mirror: always + +#ifdef XP_WIN + # Control firing WidgetMouseEvent by handling Windows pointer messages or + # mouse messages. +- name: dom.w3c_pointer_events.dispatch_by_pointer_messages + type: bool + value: false + mirror: always +#endif + +# If the value is >= 0, it will be used for max touch points in child processes. +- name: dom.maxtouchpoints.testing.value + type: int32_t + value: -1 + mirror: always + +# If the pref is set to true, pointer events are enabled on GeckoView, but only +# in the case it is using separate child processes. +- name: dom.w3c_pointer_events.multiprocess.android.enabled + type: bool + value: true + mirror: always + +# W3C pointer events draft. +- name: dom.w3c_pointer_events.implicit_capture + type: bool + value: false + mirror: always + +# Is support for Navigator.webdriver enabled? +- name: dom.webdriver.enabled + type: bool + value: true + mirror: always + +# In case Touch API is enabled, this pref controls whether to support +# ontouch* event handlers, document.createTouch, document.createTouchList and +# document.createEvent("TouchEvent"). +- name: dom.w3c_touch_events.legacy_apis.enabled + type: bool + value: @IS_ANDROID@ + mirror: always + +# W3C touch events +# 0 - disabled, 1 - enabled, 2 - autodetect +# Autodetection is currently only supported on Windows and GTK3 (and assumed on +# Android). +- name: dom.w3c_touch_events.enabled + type: int32_t +#if defined(XP_MACOSX) + value: 0 +#else + value: 2 +#endif + mirror: always + +# Is support for the Web Audio API enabled? +- name: dom.webaudio.enabled + type: bool + value: true + mirror: always + +- name: dom.webkitBlink.dirPicker.enabled + type: RelaxedAtomicBool + value: @IS_NOT_ANDROID@ + mirror: always + +# NOTE: This preference is used in unit tests. If it is removed or its default +# value changes, please update test_sharedMap_static_prefs.js accordingly. +- name: dom.webcomponents.shadowdom.report_usage + type: bool + value: false + mirror: always + +# Is support for form-associated custom element enabled? +- name: dom.webcomponents.formAssociatedCustomElement.enabled + type: bool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +# Is support for the Web GPU API enabled? +- name: dom.webgpu.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +# Is support for HTMLInputElement.webkitEntries enabled? +- name: dom.webkitBlink.filesystem.enabled + type: bool + value: @IS_NOT_ANDROID@ + mirror: always + +# Whether the WebMIDI API is enabled +- name: dom.webmidi.enabled + type: bool + value: false + mirror: always + +- name: dom.webnotifications.allowinsecure + type: RelaxedAtomicBool + value: false + mirror: always + +- name: dom.webnotifications.allowcrossoriginiframe + type: RelaxedAtomicBool + value: false + mirror: always + +- name: dom.webnotifications.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +- name: dom.webnotifications.requireuserinteraction + type: RelaxedAtomicBool + value: true + mirror: always + +- name: dom.webnotifications.requireinteraction.enabled + type: RelaxedAtomicBool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +- name: dom.webnotifications.serviceworker.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# Is support for Window.event enabled? +- name: dom.window.event.enabled + type: bool + value: true + mirror: always + +- name: dom.window.history.async + type: bool + value: true + mirror: always + +# Enable the "noreferrer" feature argument for window.open() +- name: dom.window.open.noreferrer.enabled + type: bool + value: true + mirror: always + +- name: dom.window.content.untrusted.enabled + type: bool + value: @IS_NOT_EARLY_BETA_OR_EARLIER@ + mirror: always + +- name: dom.worker.canceling.timeoutMilliseconds + type: RelaxedAtomicUint32 + value: 30000 # 30 seconds + mirror: always + +# Is support for compiling DOM worker scripts directly from UTF-8 (without ever +# inflating to UTF-16) enabled? +- name: dom.worker.script_loader.utf8_parsing.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +- name: dom.worker.use_medium_high_event_queue + type: RelaxedAtomicBool + value: true + mirror: always + +# Enables the dispatching of console log events from worker threads to the +# main-thread. +- name: dom.worker.console.dispatch_events_to_main_thread + type: RelaxedAtomicBool + value: true + mirror: always + +- name: dom.worklet.enabled + type: bool + value: true + mirror: always + +# Enable content type normalization of XHR uploads via MIME Sniffing standard +- name: dom.xhr.standard_content_type_normalization + type: RelaxedAtomicBool + value: true + mirror: always + +# When this pref is set, parent documents may consider child iframes have +# loaded while they are still loading. +- name: dom.cross_origin_iframes_loaded_in_background + type: bool + value: false + mirror: always + +# WebIDL test prefs. +- name: dom.webidl.test1 + type: bool + value: true + mirror: always +- name: dom.webidl.test2 + type: bool + value: true + mirror: always + +# WebShare API - exposes navigator.share() +- name: dom.webshare.enabled + type: bool + value: false + mirror: always + +# WebShare API - allows WebShare without user interaction (for tests only). +- name: dom.webshare.requireinteraction + type: bool + value: true + mirror: always + +# about:home and about:newtab include remote snippets that contain arbitrarily +# placed anchor tags in their content; we want sanitization to be turned off +# in order to render them correctly +- name: dom.about_newtab_sanitization.enabled + type: bool + value: false + mirror: always + +# Hide the confirm dialog when a POST request is reloaded. +- name: dom.confirm_repost.testing.always_accept + type: bool + value: false + mirror: always + +# Whether we should suspend inactive tabs or not +- name: dom.suspend_inactive.enabled + type: bool + value: @IS_ANDROID@ + mirror: always + +# The following four prefs control the maximum script run time before slow +# script warning. +- name: dom.max_script_run_time + type: int32_t + value: 10 + mirror: always + +- name: dom.max_script_run_time_without_important_user_input + type: int32_t +#ifdef NIGHTLY_BUILD + value: 20 +#else + value: 10 +#endif + mirror: always + +- name: dom.max_chrome_script_run_time + type: int32_t + value: 0 + mirror: always + +- name: dom.max_ext_content_script_run_time + type: int32_t + value: 5 + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "editor" +#--------------------------------------------------------------------------- + +# Allow or disallow to delete `<hr>` element when caret is at start of +# following line of the element. If false, Backspace from start of following +# line of an `<hr>` element causes moving caret to immediatly after the `<hr>` +# element, and then, another Backspace can delete it. +- name: editor.hr_element.allow_to_delete_from_following_line + type: bool + value: false + mirror: always + +# Delay to mask last input character in password fields. +# If negative value, to use platform's default behavior. +# If 0, no delay to mask password. +# Otherwise, password fields unmask last input character(s) during specified +# time (in milliseconds). +- name: editor.password.mask_delay + type: int32_t + value: -1 + mirror: always + +# Set to true when you test mask_delay of password editor. If this is set +# to true, "MozLastInputMasked" is fired when last input characters are +# masked by timeout. +- name: editor.password.testing.mask_delay + type: bool + value: false + mirror: always + +# General prefs for editor, indicating whether Gecko-specific editing UI is +# enabled by default. Those UIs are not implemented by any other browsers. So, +# only Firefox users can change some styles with them. This means that Firefox +# users may get unexpected result of some web apps if they assume that users +# cannot change such styles. +- name: editor.resizing.enabled_by_default + type: bool + value: false + mirror: always +- name: editor.inline_table_editing.enabled_by_default + type: bool + value: false + mirror: always +- name: editor.positioning.enabled_by_default + type: bool + value: false + mirror: always + +# Whether user pastes should be truncated. +- name: editor.truncate_user_pastes + type: bool + value: true + mirror: always + +# How line breakers are treated in single line editor: +# * 0: Only remove the leading and trailing newlines. +# * 1: Remove the first newline and all characters following it. +# * 2: Replace newlines with spaces (default of Firefox). +# * 3: Remove newlines from the string. +# * 4: Replace newlines with commas (default of Thunderbird). +# * 5: Collapse newlines and surrounding white space characters and +# remove them from the string. +# Other values are treated as 1. +- name: editor.singleLine.pasteNewlines + type: int32_t + value: 2 + mirror: always + +# Whether enabling blink compatible white-space normalizer or keep using +# Gecko's traditional white-space normalizer. +- name: editor.white_space_normalization.blink_compatible + type: bool + value: false + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "extensions." +#--------------------------------------------------------------------------- + +# Private browsing opt-in is only supported on Firefox desktop. +- name: extensions.allowPrivateBrowsingByDefault + type: bool + value: false + mirror: always + +# Whether the background.service_worker in the extension manifest.json file +# is enabled. +- name: extensions.backgroundServiceWorker.enabled + type: bool + value: false + mirror: once + +# Whether the extensions can register a service worker on its own. +# NOTE: WebExtensions Framework ability to register a background service worker +# is not controlled by this pref, only the extension code ability to use +# navigator.serviceWorker.register is locked behind this pref. +- name: extensions.serviceWorkerRegister.allowed + type: bool + value: false + mirror: always + +# This pref governs whether we run webextensions in a separate process (true) +# or the parent/main process (false) +- name: extensions.webextensions.remote + type: RelaxedAtomicBool + value: false + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "findbar." +#--------------------------------------------------------------------------- + +- name: findbar.modalHighlight + type: bool + value: false + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "fission." +#--------------------------------------------------------------------------- + +# Whether to enable Fission in new windows by default. +# IMPORTANT: This preference should *never* be checked directly, since any +# session can contain a mix of Fission and non-Fission windows. Instead, +# callers should check whether the relevant nsILoadContext has the +# `useRemoteSubframes` flag set. +# Callers which cannot use `useRemoteSubframes` must use +# `Services.appinfo.fissionAutostart` or `mozilla::FissionAutostart()` to check +# if fission is enabled by default. +# Note: This is overridden in all.js on RELEASE_OR_BETA in order to add the +# locked attribute. +- name: fission.autostart + type: bool + value: false + mirror: never + +# Prefs used by normandy to orchestrate the fission experiment. For more +# details, see the comments in nsAppRunner.cpp. +- name: fission.experiment.enrollmentStatus + type: uint32_t + value: 0 + mirror: never + +- name: fission.experiment.startupEnrollmentStatus + type: uint32_t + value: 0 + mirror: never + +# This pref has no effect within fission windows, it only controls the +# behaviour within non-fission windows. If true, preserve browsing contexts +# between process swaps. +- name: fission.preserve_browsing_contexts + type: bool + value: true + mirror: always + +# Store the session history in the parent process, and access it over IPC +# from the child processes. +- name: fission.sessionHistoryInParent + type: bool + value: false + mirror: once + do_not_use_directly: true + +# Allow renaming of process names to the origin on nightly +# Setting this pref creates a privacy leak, but helps greatly with +# debugging +- name: fission.processOriginNames + type: bool + value: false + mirror: always + +# If true, allow process-switching documents loaded by <object> and <embed> +# elements into a remote process. +# NOTE: This pref has no impact outside of windows with the +# `useRemoteSubframes` flag set. +- name: fission.remoteObjectEmbed + type: bool + value: true + mirror: always + +# If true, show option for opening a non-Fission window in a menu, when Fission +# is enabled. +- name: fission.openNonFissionWindowOption + type: bool + value: false + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "font." +#--------------------------------------------------------------------------- + +# A value greater than zero enables font size inflation for +# pan-and-zoom UIs, so that the fonts in a block are at least the size +# that, if a block's width is scaled to match the device's width, the +# fonts in the block are big enough that at most the pref value ems of +# text fit in *the width of the device*. +# +# When both this pref and the next are set, the larger inflation is used. +- name: font.size.inflation.emPerLine + type: uint32_t + value: 0 + mirror: always + +# A value greater than zero enables font size inflation for +# pan-and-zoom UIs, so that if a block's width is scaled to match the +# device's width, the fonts in a block are at least the given font size. +# The value given is in twips, i.e., 1/20 of a point, or 1/1440 of an inch. +# +# When both this pref and the previous are set, the larger inflation is used. +- name: font.size.inflation.minTwips + type: uint32_t + value: 0 + mirror: always + +# In products with multi-mode pan-and-zoom and non-pan-and-zoom UIs, +# this pref forces font inflation to always be enabled in all modes. +# That is, any heuristics used to detect pan-and-zoom +# vs. non-pan-and-zoom modes are disabled and all content is treated +# as pan-and-zoom mode wrt font inflation. +# +# This pref has no effect if font inflation is not enabled through +# either of the prefs above. It has no meaning in single-mode UIs. +- name: font.size.inflation.forceEnabled + type: bool + value: false + mirror: always + +# In products with multi-mode pan-and-zoom and non-pan-and-zoom UIs, +# this pref disables font inflation in master-process contexts where +# existing heuristics can't be used determine enabled-ness. +# +# This pref has no effect if font inflation is not enabled through +# either of the prefs above. The "forceEnabled" pref above overrides +# this pref. +- name: font.size.inflation.disabledInMasterProcess + type: bool + value: false + mirror: always + +# Defines the font size inflation mapping intercept parameter. +# +# Font size inflation computes a minimum font size, m, based on +# other preferences (see font.size.inflation.minTwips and +# font.size.inflation.emPerLine, above) and the width of the +# frame in which the text resides. Using this minimum, a specified +# font size, s, is mapped to an inflated font size, i, using an +# equation that varies depending on the value of the font size +# inflation mapping intercept parameter, P. +# +# If the intercept parameter is negative, then the following mapping +# function is used: +# +# i = m + s +# +# If the intercept parameter is non-negative, then the mapping function +# is a function such that its graph meets the graph of i = s at the +# point where both i and s are (1 + P/2) * m for values of s that are +# large enough. This means that when s=0, i is always equal to m. +- name: font.size.inflation.mappingIntercept + type: int32_t + value: 1 + mirror: always + +# Since the goal of font size inflation is to avoid having to +# repeatedly scroll side to side to read a block of text, and there are +# a number of page layouts where a relatively small chunk of text is +# better off not being inflated according to the same algorithm we use +# for larger chunks of text, we want a threshold for an amount of text +# that triggers font size inflation. This preference controls that +# threshold. +# +# It controls the threshold used within an *approximation* of the +# number of lines of text we use. In particular, if we assume that +# each character (collapsing collapsible whitespace) has a width the +# same as the em-size of the font (when, normally, it's actually quite +# a bit smaller on average), this preference gives the percentage of a +# number of lines of text we'd need to trigger inflation. This means +# that a percentage of 100 means that we'd need a number of characters +# (we know the font size and the width) equivalent to one line of +# square text (which is actually a lot less than a real line of text). +# +# A value of 0 means there's no character length threshold. +- name: font.size.inflation.lineThreshold + type: uint32_t + value: 400 + mirror: always + +# This controls the percentage that fonts will be inflated, if font +# size inflation is enabled. Essentially, if we have a specified font +# size, s, and an inflated font size, i, this specifies that the ratio +# i/s * 100 should never exceed the value of this preference. In order +# for this preference to have any effect, its value must be greater +# than 100, since font inflation can never decrease the ratio i/s. +- name: font.size.inflation.maxRatio + type: uint32_t + value: 0 + mirror: always + +# This setting corresponds to a global text zoom setting affecting +# all content that is not already subject to font size inflation. +# It is interpreted as a percentage value that is applied on top +# of the document's current text zoom setting. +# +# The resulting total zoom factor (text zoom * system font scale) +# will be limited by zoom.minPercent and maxPercent. +- name: font.size.systemFontScale + type: uint32_t + value: 100 + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "full-screen-api." +#--------------------------------------------------------------------------- + +- name: full-screen-api.enabled + type: bool + value: false + mirror: always + +- name: full-screen-api.allow-trusted-requests-only + type: bool + value: true + mirror: always + +- name: full-screen-api.mouse-event-allow-left-button-only + type: bool + value: true + mirror: always + +- name: full-screen-api.exit-on.windowOpen + type: bool + value: true + mirror: always + +- name: full-screen-api.exit-on.windowRaise + type: bool + value: true + mirror: always + +- name: full-screen-api.pointer-lock.enabled + type: bool + value: true + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "fuzzing.". It's important that these can only be +# checked in fuzzing builds (when FUZZING is defined), otherwise you could +# enable the fuzzing stuff on your regular build which would be bad :) +#--------------------------------------------------------------------------- + +#ifdef FUZZING +- name: fuzzing.enabled + type: bool + value: false + mirror: always + +- name: fuzzing.necko.enabled + type: RelaxedAtomicBool + value: false + mirror: always +#endif + +#--------------------------------------------------------------------------- +# Prefs starting with "general." +#--------------------------------------------------------------------------- + +- name: general.aboutConfig.enable + type: bool + value: true + mirror: always + +# Limits the depth of recursive conversion of data when opening +# a content to view. This is mostly intended to prevent infinite +# loops with faulty converters involved. +- name: general.document_open_conversion_depth_limit + type: uint32_t + value: 20 + mirror: always + +- name: general.smoothScroll + type: RelaxedAtomicBool + value: true + mirror: always + +# This pref and general.smoothScroll.stopDecelerationWeighting determine +# the timing function. +- name: general.smoothScroll.currentVelocityWeighting + type: AtomicFloat + value: 0.25 + mirror: always + +# To connect consecutive scroll events into a continuous flow, the animation's +# duration should be longer than scroll events intervals (or else the scroll +# will stop before the next event arrives - we're guessing the next interval +# by averaging recent intervals). +# This defines how much longer the duration is compared to the events +# interval (percentage). +- name: general.smoothScroll.durationToIntervalRatio + type: RelaxedAtomicInt32 + value: 200 + mirror: always + +- name: general.smoothScroll.lines + type: RelaxedAtomicBool + value: true + mirror: always + +- name: general.smoothScroll.lines.durationMaxMS + type: RelaxedAtomicInt32 + value: 150 + mirror: always + +- name: general.smoothScroll.lines.durationMinMS + type: RelaxedAtomicInt32 + value: 150 + mirror: always + +- name: general.smoothScroll.mouseWheel + type: RelaxedAtomicBool + value: true + mirror: always + +- name: general.smoothScroll.mouseWheel.durationMaxMS + type: RelaxedAtomicInt32 + value: 200 + mirror: always + +- name: general.smoothScroll.mouseWheel.durationMinMS + type: RelaxedAtomicInt32 + value: 50 + mirror: always + +- name: general.smoothScroll.mouseWheel.migrationPercent + type: RelaxedAtomicInt32 + value: 100 + mirror: always + +- name: general.smoothScroll.other + type: RelaxedAtomicBool + value: true + mirror: always + +- name: general.smoothScroll.other.durationMaxMS + type: RelaxedAtomicInt32 + value: 150 + mirror: always + +- name: general.smoothScroll.other.durationMinMS + type: RelaxedAtomicInt32 + value: 150 + mirror: always + +- name: general.smoothScroll.pages + type: RelaxedAtomicBool + value: true + mirror: always + +- name: general.smoothScroll.pages.durationMaxMS + type: RelaxedAtomicInt32 + value: 150 + mirror: always + +- name: general.smoothScroll.pages.durationMinMS + type: RelaxedAtomicInt32 + value: 150 + mirror: always + +- name: general.smoothScroll.scrollbars + type: RelaxedAtomicBool + value: true + mirror: always + +- name: general.smoothScroll.scrollbars.durationMaxMS + type: RelaxedAtomicInt32 + value: 150 + mirror: always + +- name: general.smoothScroll.scrollbars.durationMinMS + type: RelaxedAtomicInt32 + value: 150 + mirror: always + +- name: general.smoothScroll.pixels + type: RelaxedAtomicBool + value: true + mirror: always + +- name: general.smoothScroll.pixels.durationMaxMS + type: RelaxedAtomicInt32 + value: 150 + mirror: always + +- name: general.smoothScroll.pixels.durationMinMS + type: RelaxedAtomicInt32 + value: 150 + mirror: always + +# This pref and general.smoothScroll.currentVelocityWeighting determine +# the timing function. +- name: general.smoothScroll.stopDecelerationWeighting + type: AtomicFloat + value: 0.4f + mirror: always + +# Alternative smooth scroll physics. ("MSD" = Mass-Spring-Damper) +- name: general.smoothScroll.msdPhysics.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +- name: general.smoothScroll.msdPhysics.continuousMotionMaxDeltaMS + type: RelaxedAtomicInt32 + value: 120 + mirror: always + +- name: general.smoothScroll.msdPhysics.motionBeginSpringConstant + type: RelaxedAtomicInt32 + value: 1250 + mirror: always + +- name: general.smoothScroll.msdPhysics.slowdownMinDeltaMS + type: RelaxedAtomicInt32 + value: 12 + mirror: always + +- name: general.smoothScroll.msdPhysics.slowdownMinDeltaRatio + type: AtomicFloat + value: 1.3f + mirror: always + +- name: general.smoothScroll.msdPhysics.slowdownSpringConstant + type: RelaxedAtomicInt32 + value: 2000 + mirror: always + +- name: general.smoothScroll.msdPhysics.regularSpringConstant + type: RelaxedAtomicInt32 + value: 1000 + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "geo." +#--------------------------------------------------------------------------- + +# Is support for Navigator.geolocation enabled? +- name: geo.enabled + type: bool + value: true + mirror: always + +# Time, in milliseconds, to wait for the location provider to spin up. +- name: geo.timeout + type: int32_t + value: 6000 + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "gfx." +#--------------------------------------------------------------------------- + +- name: gfx.allow-texture-direct-mapping + type: bool + value: true + mirror: once + +# Allow 24-bit colour when the hardware supports it. +- name: gfx.android.rgb16.force + type: bool + value: false + mirror: once + +- name: gfx.apitrace.enabled + type: bool + value: false + mirror: once + +# Nb: we ignore this pref on release and beta. +- name: gfx.blocklist.all + type: int32_t + value: 0 + mirror: once + +# 0x7fff is the maximum supported xlib surface size and is more than enough for canvases. +- name: gfx.canvas.max-size + type: RelaxedAtomicInt32 + value: 0x7fff + mirror: always + +- name: gfx.canvas.remote + type: RelaxedAtomicBool +#if defined(XP_WIN) + value: true +#else + value: false +#endif + mirror: always + +- name: gfx.color_management.enablev4 + type: RelaxedAtomicBool + value: false + mirror: always + +# 0 = Off, 1 = Full, 2 = Tagged Images Only. +# See eCMSMode in gfx/thebes/gfxPlatform.h. +- name: gfx.color_management.mode + type: RelaxedAtomicInt32 + value: 2 + mirror: always + +# The zero default here should match QCMS_INTENT_DEFAULT from qcms.h +- name: gfx.color_management.rendering_intent + type: RelaxedAtomicInt32 + value: 0 + mirror: always + +- name: gfx.compositor.clearstate + type: RelaxedAtomicBool + value: false + mirror: always + +# Whether GL contexts can be migrated to a different GPU (to match the one the +# OS is using for composition). +# +# 0 = force disable migration +# 1 = use migration where in safe configurations (the default) +# 2 = force enable migration (for testing) +- name: gfx.compositor.gpu-migration + type: RelaxedAtomicInt32 + value: 1 + mirror: always + +- name: gfx.core-animation.tint-opaque + type: RelaxedAtomicBool + value: false + mirror: always + +#if defined(MOZ_WIDGET_ANDROID) + # Overrides the glClear color used when the surface origin is not (0, 0) + # Used for drawing a border around the content. +- name: gfx.compositor.override.clear-color.r + type: AtomicFloat + value: 0.0f + mirror: always + +- name: gfx.compositor.override.clear-color.g + type: AtomicFloat + value: 0.0f + mirror: always + +- name: gfx.compositor.override.clear-color.b + type: AtomicFloat + value: 0.0f + mirror: always + +- name: gfx.compositor.override.clear-color.a + type: AtomicFloat + value: 0.0f + mirror: always +#endif # defined(MOZ_WIDGET_ANDROID) + +- name: gfx.content.always-paint + type: RelaxedAtomicBool + value: false + mirror: always + +# Size in megabytes +- name: gfx.content.skia-font-cache-size + type: int32_t + value: 5 + mirror: once + +- name: gfx.device-reset.limit + type: int32_t + value: 10 + mirror: once + +- name: gfx.device-reset.threshold-ms + type: int32_t + value: -1 + mirror: once + + +# Whether to disable the automatic detection and use of direct2d. +- name: gfx.direct2d.disabled + type: bool + value: false + mirror: once + +# Whether to attempt to enable Direct2D regardless of automatic detection or +# blacklisting. +- name: gfx.direct2d.force-enabled + type: bool + value: false + mirror: once + +# Whether to defer destruction of Direct2D DrawTargets to the paint thread +# when using OMTP. +- name: gfx.direct2d.destroy-dt-on-paintthread + type: RelaxedAtomicBool + value: true + mirror: always + +- name: gfx.direct3d11.reuse-decoder-device + type: RelaxedAtomicInt32 + value: -1 + mirror: always + +- name: gfx.direct3d11.allow-keyed-mutex + type: RelaxedAtomicBool + value: true + mirror: always + +- name: gfx.direct3d11.use-double-buffering + type: RelaxedAtomicBool + value: false + mirror: always + +- name: gfx.direct3d11.enable-debug-layer + type: bool + value: false + mirror: once + +- name: gfx.direct3d11.break-on-error + type: bool + value: false + mirror: once + +- name: gfx.direct3d11.sleep-on-create-device + type: int32_t + value: 0 + mirror: once + +# Whether to preserve color bitmap tables in fonts (bypassing OTS). +# Currently these are supported only on platforms where we use Freetype +# to render fonts (Linux/Gtk and Android). +- name: gfx.downloadable_fonts.keep_color_bitmaps + type: RelaxedAtomicBool + value: false + mirror: always + +# Whether font sanitization is performed on the main thread or not. +- name: gfx.downloadable_fonts.sanitize_omt + type: RelaxedAtomicBool + value: true + mirror: always + +# Whether to validate OpenType variation tables in fonts. +- name: gfx.downloadable_fonts.validate_variation_tables + type: RelaxedAtomicBool + value: true + mirror: always + +# Whether OTS validation should be applied to OpenType Layout (OTL) tables. +- name: gfx.downloadable_fonts.otl_validation + type: RelaxedAtomicBool + value: @IS_NOT_RELEASE_OR_BETA@ + mirror: always + +- name: gfx.draw-color-bars + type: RelaxedAtomicBool + value: false + mirror: always + +- name: gfx.e10s.hide-plugins-for-scroll + type: bool + value: true + mirror: once + +- name: gfx.e10s.font-list.shared + type: bool + value: @IS_EARLY_BETA_OR_EARLIER@ + mirror: once + +# Whether to load fonts (e.g. Twemoji Mozilla) bundled with the application: +# -1 - Auto behavior based on OS version (currently, disables loading on Win8.1 or later, +# or on "low-memory" Android devices) +# 0 - Skip loading any bundled fonts +# 1 - Always load bundled fonts +- name: gfx.bundled-fonts.activate + type: int32_t + value: -1 + mirror: once + +- name: gfx.font_loader.delay + type: uint32_t +#if defined(XP_WIN) + value: 60000 +#else + value: 8000 +#endif + mirror: once + +# Disable antialiasing of Ahem, for use in tests. +- name: gfx.font_rendering.ahem_antialias_none + type: RelaxedAtomicBool + value: false + mirror: always + +#if defined(XP_MACOSX) + # Set to true to revert from HarfBuzz AAT shaping to the old Core Text + # backend. +- name: gfx.font_rendering.coretext.enabled + type: RelaxedAtomicBool + value: false + mirror: always +#endif + +- name: gfx.font_rendering.opentype_svg.enabled + type: RelaxedAtomicBool + value: true + mirror: always + rust: true + +- name: gfx.font_rendering.fallback.async + type: RelaxedAtomicBool + value: true + mirror: always + +# Whether to enable LayerScope tool and default listening port. +- name: gfx.layerscope.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +- name: gfx.layerscope.port + type: RelaxedAtomicInt32 + value: 23456 + mirror: always + +# The level of logging: +# - 0: no logging; +# - 1: adds errors; +# - 2: adds warnings; +# - 3 or 4: adds debug logging. +# If you set the value to 4, you will also need to set the environment +# variable MOZ_LOG to gfx:4. See mozilla/Logging.h for details. +- name: gfx.logging.level + type: RelaxedAtomicInt32 + value: mozilla::gfx::LOG_DEFAULT + mirror: always + include: mozilla/gfx/LoggingConstants.h + +- name: gfx.logging.crash.length + type: uint32_t + value: 16 + mirror: once + +- name: gfx.logging.painted-pixel-count.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +# The maximums here are quite conservative, we can tighten them if problems show up. +- name: gfx.logging.texture-usage.enabled + type: bool + value: false + mirror: once + +- name: gfx.logging.peak-texture-usage.enabled + type: bool + value: false + mirror: once + +- name: gfx.logging.slow-frames.enabled + type: bool + value: false + mirror: once + +# Use gfxPlatform::MaxAllocSize instead of the pref directly. +- name: gfx.max-alloc-size + type: int32_t + value: (int32_t)500000000 + mirror: once + do_not_use_directly: true + +# Use gfxPlatform::MaxTextureSize instead of the pref directly. +- name: gfx.max-texture-size + type: int32_t + value: (int32_t)32767 + mirror: once + do_not_use_directly: true + +- name: gfx.offscreencanvas.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +- name: gfx.omta.background-color + type: bool + value: true + mirror: always + +- name: gfx.partialpresent.force + type: RelaxedAtomicInt32 + value: 0 + mirror: always + +# Log severe performance warnings to the error console and profiles. +# This should be use to quickly find which slow paths are used by test cases. +- name: gfx.perf-warnings.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +- name: gfx.testing.device-fail + type: RelaxedAtomicBool + value: false + mirror: always + +- name: gfx.testing.device-reset + type: RelaxedAtomicInt32 + value: 0 + mirror: always + +- name: gfx.text.disable-aa + type: bool + value: false + mirror: once + +- name: gfx.text.subpixel-position.force-enabled + type: bool + value: false + mirror: once + +- name: gfx.text.subpixel-position.force-disabled + type: bool + value: false + mirror: once + +# Disable surface sharing due to issues with compatible FBConfigs on +# NVIDIA drivers as described in bug 1193015. +- name: gfx.use-glx-texture-from-pixmap + type: RelaxedAtomicBool + value: false + mirror: always + +- name: gfx.use-iosurface-textures + type: bool + value: false + mirror: once + +- name: gfx.use-mutex-on-present + type: bool + value: false + mirror: once + +- name: gfx.use-ahardwarebuffer-content + type: bool + value: false + mirror: once + +# Use SurfaceTextures as preferred backend for TextureClient/Host. +- name: gfx.use-surfacetexture-textures + type: bool + value: false + mirror: once + +- name: gfx.vsync.collect-scroll-transforms + type: RelaxedAtomicBool + value: false + mirror: always + +- name: gfx.vsync.compositor.unobserve-count + type: int32_t + value: 10 + mirror: once + +- name: gfx.vsync.force-disable-waitforvblank + type: RelaxedAtomicBool + value: false + mirror: always + +# We expose two prefs: gfx.webrender.all and gfx.webrender.enabled. +# The first enables WR+additional features, and the second just enables WR. +# For developer convenience, building with --enable-webrender=true or just +# --enable-webrender will set gfx.webrender.enabled to true by default. +# +# We also have a pref gfx.webrender.all.qualified which is not exposed via +# about:config. That pref enables WR but only on qualified hardware. This is +# the pref we'll eventually flip to deploy WebRender to the target population. +- name: gfx.webrender.all + type: bool + value: false + mirror: once + +- name: gfx.webrender.enabled + type: bool + value: false + mirror: once + do_not_use_directly: true + +#ifdef XP_WIN +- name: gfx.webrender.force-angle + type: bool + value: true + mirror: once +#endif + +# WebRender is not enabled when there is no GPU process on window when +# WebRender uses ANGLE. It is for avoiding that WebGL and WebRender use ANGLE +# at once. But there is a case that we want to enable WebRender for testing. +#ifdef XP_WIN +- name: gfx.webrender.enabled-no-gpu-process-with-angle-win + type: bool + value: true + mirror: once +#endif + +- name: gfx.webrender.blob-images + type: RelaxedAtomicBool + value: true + mirror: always + +- name: gfx.webrender.svg-images + type: RelaxedAtomicBool + value: false + mirror: always + +- name: gfx.webrender.blob.paint-flashing + type: RelaxedAtomicBool + value: false + mirror: always + +- name: gfx.webrender.enable-capture + type: bool +#ifdef NIGHTLY_BUILD + value: true +#else + value: false +#endif + mirror: once + +- name: gfx.webrender.dl.dump-parent + type: RelaxedAtomicBool + value: false + mirror: always + +- name: gfx.webrender.dl.dump-content + type: RelaxedAtomicBool + value: false + mirror: always + +- name: gfx.webrender.dl.dump-content-serialized + type: RelaxedAtomicBool + value: false + mirror: always + +# Also expose a pref to allow users to force-disable WR. This is exposed +# on all channels because WR can be enabled on qualified hardware on all +# channels. +- name: gfx.webrender.force-disabled + type: bool + value: false + mirror: once + +- name: gfx.webrender.highlight-painted-layers + type: RelaxedAtomicBool + value: false + mirror: always + +- name: gfx.webrender.late-scenebuild-threshold + type: RelaxedAtomicInt32 + value: 4 + mirror: always + +- name: gfx.webrender.max-filter-ops-per-chain + type: RelaxedAtomicUint32 + value: 64 + mirror: always + +- name: gfx.webrender.enable-multithreading + type: bool + value: true + mirror: always + +- name: gfx.webrender.batching.lookback + type: uint32_t + value: 10 + mirror: always + +- name: gfx.webrender.compositor + type: bool +#if defined(XP_WIN) || defined(XP_MACOSX) + value: true +#else + value: false +#endif + mirror: once + +- name: gfx.webrender.compositor.force-enabled + type: bool + value: false + mirror: once + +- name: gfx.webrender.compositor.max_update_rects + type: uint32_t +#if defined(XP_WIN) || defined(XP_MACOSX) + value: 1 +#else + value: 0 +#endif + mirror: once + +- name: gfx.webrender.compositor.surface-pool-size + type: uint32_t + value: 25 + mirror: once + +# Number of damage rects we can give to the compositor for a new frame with +# partial present. This controls whether partial present is used or not. +- name: gfx.webrender.max-partial-present-rects + type: uint32_t +#if defined(XP_WIN) || defined(MOZ_WIDGET_ANDROID) || defined(MOZ_WIDGET_GTK) + value: 1 +#else + value: 0 +#endif + mirror: once + +# Whether or not we can reuse the buffer contents using the GL buffer age +# extension, if supported by the platform. This requires partial present +# to be used. +- name: gfx.webrender.allow-partial-present-buffer-age + type: bool + value: true + mirror: once + +- name: gfx.webrender.enable-gpu-markers + type: bool +#ifdef DEBUG + value: true +#else + value: false +#endif + mirror: once + +- name: gfx.webrender.enable-item-cache + type: bool + value: true + mirror: once + +- name: gfx.webrender.use-optimized-shaders + type: bool + value: true + mirror: once + +- name: gfx.webrender.precache-shaders + type: bool + value: false + mirror: once + +# When gl debug message is a high severity message, forwward it to gfx critical +# note. +- name: gfx.webrender.gl-debug-message-critical-note + type: bool +#if defined(XP_WIN) && defined(NIGHTLY_BUILD) + value: true +#else + value: false +#endif + mirror: once + +# Enable printing gl debug messages +- name: gfx.webrender.gl-debug-message-print + type: bool + value: false + mirror: once + +#ifdef NIGHTLY_BUILD + # Keep this pref hidden on non-nightly builds to avoid people accidentally + # turning it on. +- name: gfx.webrender.panic-on-gl-error + type: bool + value: false + mirror: once +#endif + +#ifdef NIGHTLY_BUILD + # Keep this pref hidden on non-nightly builds to avoid people accidentally + # turning it on. +- name: gfx.webrender.start-debug-server + type: RelaxedAtomicBool + value: false + mirror: always +#endif + +#ifdef XP_WIN + # Enables display of performance debugging counters when DirectComposition + # is used. + # Performance counters are displayed on the top-right corner of the screen. +- name: gfx.webrender.debug.dcomp-counter + type: RelaxedAtomicBool + value: false + mirror: always + # Enables highlighting redraw regions of DCompositionVisual +- name: gfx.webrender.debug.dcomp-redraw-regions + type: RelaxedAtomicBool + value: false + mirror: always +#endif + +- name: gfx.webrender.enable-low-priority-pool + type: RelaxedAtomicBool +#if defined(ANDROID) + value: false +#else + value: true +#endif + mirror: always + + # Force subpixel anti-aliasing as much as possible, despite performance cost. +- name: gfx.webrender.quality.force-subpixel-aa-where-possible + type: bool + value: false + mirror: always + +#ifdef XP_MACOSX +- name: gfx.webrender.enable-client-storage + type: bool + value: true + mirror: once +#endif + + # Width of WebRender tile size +- name: gfx.webrender.picture-tile-width + type: RelaxedAtomicInt32 + value: 1024 + mirror: always + + # Width of WebRender tile size +- name: gfx.webrender.picture-tile-height + type: RelaxedAtomicInt32 + value: 512 + mirror: always + +# Whether to use the WebRender software backend +- name: gfx.webrender.software + type: bool + value: false + mirror: once + +# Whether to use the D3D11 RenderCompositor when using WebRender software backend +- name: gfx.webrender.software.d3d11 + type: bool + value: true + mirror: once + +- name: gfx.webrender.software.d3d11.upload-mode + type: RelaxedAtomicInt32 + value: 2 + mirror: always + +# Use vsync events generated by hardware +- name: gfx.work-around-driver-bugs + type: bool + value: true + mirror: once + +- name: gfx.ycbcr.accurate-conversion + type: RelaxedAtomicBool + value: false + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "gl." (OpenGL) +#--------------------------------------------------------------------------- + +- name: gl.allow-high-power + type: RelaxedAtomicBool + value: true + mirror: always + +- name: gl.ignore-dx-interop2-blacklist + type: RelaxedAtomicBool + value: false + mirror: always + +- name: gl.use-tls-is-current + type: RelaxedAtomicInt32 + value: 0 + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "html5." +#--------------------------------------------------------------------------- + +# Turn HTML:inert on or off. +- name: html5.inert.enabled + type: bool + value: false + mirror: always + +# Toggle which thread the HTML5 parser uses for stream parsing. +- name: html5.offmainthread + type: bool + value: true + mirror: always + +# Time in milliseconds between the time a network buffer is seen and the timer +# firing when the timer hasn't fired previously in this parse in the +# off-the-main-thread HTML5 parser. +- name: html5.flushtimer.initialdelay + type: RelaxedAtomicInt32 + value: 16 + mirror: always + +# Time in milliseconds between the time a network buffer is seen and the timer +# firing when the timer has already fired previously in this parse. +- name: html5.flushtimer.subsequentdelay + type: RelaxedAtomicInt32 + value: 16 + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "idle_period." +#--------------------------------------------------------------------------- + +- name: idle_period.min + type: uint32_t + value: 3 + mirror: always + +- name: idle_period.during_page_load.min + type: uint32_t + value: 12 + mirror: always + +- name: idle_period.cross_process_scheduling + type: RelaxedAtomicBool + value: true + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "image." +#--------------------------------------------------------------------------- + +# The maximum size (in kB) that the aggregate frames of an animation can use +# before it starts to discard already displayed frames and redecode them as +# necessary. +- name: image.animated.decode-on-demand.threshold-kb + type: RelaxedAtomicUint32 + value: 20*1024 + mirror: always + +# The minimum number of frames we want to have buffered ahead of an +# animation's currently displayed frame. +- name: image.animated.decode-on-demand.batch-size + type: RelaxedAtomicUint32 + value: 6 + mirror: always + +# Whether we should recycle already displayed frames instead of discarding +# them. This saves on the allocation itself, and may be able to reuse the +# contents as well. Only applies if generating full frames. +- name: image.animated.decode-on-demand.recycle + type: bool + value: true + mirror: once + +# Resume an animated image from the last displayed frame rather than +# advancing when out of view. +- name: image.animated.resume-from-last-displayed + type: RelaxedAtomicBool + value: true + mirror: always + +# Maximum number of surfaces for an image before entering "factor of 2" mode. +# This in addition to the number of "native" sizes of an image. A native size +# is a size for which we can decode a frame without up or downscaling. Most +# images only have 1, but some (i.e. ICOs) may have multiple frames for the +# same data at different sizes. +- name: image.cache.factor2.threshold-surfaces + type: RelaxedAtomicInt32 + value: 4 + mirror: always + +# Maximum size of a surface in KB we are willing to produce when rasterizing +# an SVG. +- name: image.cache.max-rasterized-svg-threshold-kb + type: RelaxedAtomicInt32 + value: 200*1024 + mirror: always + +# The maximum size, in bytes, of the decoded images we cache. +- name: image.cache.size + type: int32_t + value: 5*1024*1024 + mirror: once + +# A weight, from 0-1000, to place on time when comparing to size. +# Size is given a weight of 1000 - timeweight. +- name: image.cache.timeweight + type: int32_t + value: 500 + mirror: once + +# Decode all images automatically on load, ignoring our normal heuristics. +- name: image.decode-immediately.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +# Whether we attempt to downscale images during decoding. +- name: image.downscale-during-decode.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# Whether to honor orientation metadata (such as JPEG EXIF tags) by default. +# When this pref is enabled, all images used by the platform will be correctly +# re-oriented, except for content images (HTML <img> and CSS generated content +# images) with image-orientation:none. +- name: image.honor-orientation-metadata + type: RelaxedAtomicBool + value: true + mirror: always + +# Honor image orientation metadata in the naturalWidth and naturalHeight +# APIs on HTMLImageElement. +- name: image.honor_orientation_metadata.natural_size + type: bool + value: true + mirror: always + +# The threshold for inferring that changes to an <img> element's |src| +# attribute by JavaScript represent an animation, in milliseconds. If the |src| +# attribute is changing more frequently than this value, then we enter a +# special "animation mode" which is designed to eliminate flicker. Set to 0 to +# disable. +- name: image.infer-src-animation.threshold-ms + type: RelaxedAtomicUint32 + value: 2000 + mirror: always + +# Whether the network request priority should be adjusted according +# the layout and view frame position of each particular image. +- name: image.layout_network_priority + type: RelaxedAtomicBool + value: true + mirror: always + +# Chunk size for calls to the image decoders. +- name: image.mem.decode_bytes_at_a_time + type: uint32_t + value: 16384 + mirror: once + +# Discards inactive image frames and re-decodes them on demand from +# compressed data. +- name: image.mem.discardable + type: RelaxedAtomicBool + value: true + mirror: always + +# Discards inactive image frames of _animated_ images and re-decodes them on +# demand from compressed data. Has no effect if image.mem.discardable is false. +- name: image.mem.animated.discardable + type: bool + value: true + mirror: once + +# Whether the heap should be used for frames from animated images. On Android, +# volatile memory keeps file handles open for each buffer. +- name: image.mem.animated.use_heap + type: RelaxedAtomicBool + value: @IS_ANDROID@ + mirror: always + +# Enable extra information for debugging in the image memory reports. +- name: image.mem.debug-reporting + type: RelaxedAtomicBool + value: false + mirror: always + +# Decodes images into shared memory to allow direct use in separate +# rendering processes. Only applicable with WebRender. +- name: image.mem.shared + type: RelaxedAtomicBool + value: true + mirror: always + +# How much of the data in the surface cache is discarded when we get a memory +# pressure notification, as a fraction. The discard factor is interpreted as a +# reciprocal, so a discard factor of 1 means to discard everything in the +# surface cache on memory pressure, a discard factor of 2 means to discard half +# of the data, and so forth. The default should be a good balance for desktop +# and laptop systems, where we never discard visible images. +- name: image.mem.surfacecache.discard_factor + type: uint32_t + value: 1 + mirror: once + +# Maximum size for the surface cache, in kilobytes. +- name: image.mem.surfacecache.max_size_kb + type: uint32_t + value: 2024 * 1024 + mirror: once + +# Minimum timeout for expiring unused images from the surface cache, in +# milliseconds. This controls how long we store cached temporary surfaces. +- name: image.mem.surfacecache.min_expiration_ms + type: uint32_t + value: 60*1000 + mirror: once + +# The surface cache's size, within the constraints of the maximum size set +# above, is determined as a fraction of main memory size. The size factor is +# interpreted as a reciprocal, so a size factor of 4 means to use no more than +# 1/4 of main memory. The default should be a good balance for most systems. +- name: image.mem.surfacecache.size_factor + type: uint32_t + value: 4 + mirror: once + +# Minimum buffer size in KB before using volatile memory over the heap. +- name: image.mem.volatile.min_threshold_kb + type: RelaxedAtomicInt32 +#if defined(ANDROID) + # On Android, volatile memory keeps file handles open for each buffer. + value: 100 +#else + value: -1 +#endif + mirror: always + +# How long in ms before we should start shutting down idle decoder threads. +- name: image.multithreaded_decoding.idle_timeout + type: int32_t + value: 600000 + mirror: once + +# How many threads we'll use for multithreaded decoding. If < 0, will be +# automatically determined based on the system's number of cores. +- name: image.multithreaded_decoding.limit + type: int32_t + value: -1 + mirror: once + +# Whether we attempt to decode WebP images or not. +- name: image.webp.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# Whether we attempt to decode AVIF images or not. +- name: image.avif.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +# Whether we use dav1d (true) or libaom (false) to decode AVIF image +- name: image.avif.use-dav1d + type: RelaxedAtomicBool + value: true + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "intl." +#--------------------------------------------------------------------------- + +# Whether the new encoding detector is enabled for the .jp TLD. +- name: intl.charset.detector.ng.jp.enabled + type: bool + value: false + mirror: always + +# Whether the new encoding detector is enabled for the .in TLD. +- name: intl.charset.detector.ng.in.enabled + type: bool + value: false + mirror: always + +# Whether the new encoding detector is enabled for the .lk TLD. +- name: intl.charset.detector.ng.lk.enabled + type: bool + value: false + mirror: always + +# If true, dispatch the keydown and keyup events on any web apps even during +# composition. +- name: intl.ime.hack.on_any_apps.fire_key_events_for_composition + type: bool + value: @IS_ANDROID@ + mirror: always + +# Android-specific pref to control if keydown and keyup events are fired even +# during composition. Note that those prefs are ignored if +# dom.keyboardevent.dispatch_during_composition is false. +- name: intl.ime.hack.on_ime_unaware_apps.fire_key_events_for_composition + type: bool +# If true and intl.ime.hack.on_any_apps.fire_key_events_for_composition is +# false, dispatch the keydown and keyup events only on IME-unaware web apps. +# So, this supports web apps which listen to only keydown or keyup events +# to get a change to do something at every text input. + value: @IS_ANDROID@ + mirror: always + +#ifdef XP_WIN + # If true, automatically extend selection to cluster boundaries when + # TSF/TIP requests to select from/by middle of a cluster. +- name: intl.tsf.hack.extend_setting_selection_range_to_cluster_boundaries + type: bool + value: @IS_NOT_EARLY_BETA_OR_EARLIER@ + mirror: always +#endif + +# If you use legacy Chinese IME which puts an ideographic space to composition +# string as placeholder, this pref might be useful. If this is true and when +# web contents forcibly commits composition (e.g., moving focus), the +# ideographic space will be ignored (i.e., commits with empty string). +- name: intl.ime.remove_placeholder_character_at_commit + type: bool + value: false + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "javascript." +#--------------------------------------------------------------------------- + +- name: javascript.options.compact_on_user_inactive + type: bool + value: true + mirror: always + +# The default amount of time to wait from the user being idle to starting a +# shrinking GC. Measured in milliseconds. +- name: javascript.options.compact_on_user_inactive_delay + type: uint32_t +#ifdef NIGHTLY_BUILD + value: 15000 +#else + value: 300000 +#endif + mirror: always + +# Use better error message when accessing property of null or undefined. +- name: javascript.options.property_error_message_fix + type: RelaxedAtomicBool + value: @IS_NIGHTLY_OR_DEV_EDITION@ + mirror: always + +# Support for weak references in JavaScript (WeakRef and FinalizationRegistry). +- name: javascript.options.weakrefs + type: RelaxedAtomicBool + value: true + mirror: always + +# Whether to expose the FinalizationRegistry.prototype.cleanupSome method. +- name: javascript.options.experimental.weakrefs.expose_cleanupSome + type: RelaxedAtomicBool + value: false + mirror: always + +#ifdef NIGHTLY_BUILD + # Experimental support for Iterator Helpers in JavaScript. +- name: javascript.options.experimental.iterator_helpers + type: RelaxedAtomicBool + value: false + mirror: always + + # Experimental support for Private Fields in JavaScript. +- name: javascript.options.experimental.private_fields + type: RelaxedAtomicBool + value: false + mirror: always + + # Experimental support for Private Methods in JavaScript. +- name: javascript.options.experimental.private_methods + type: RelaxedAtomicBool + value: false + mirror: always + + # Experimental support for Top-level Await in JavaScript. +- name: javascript.options.experimental.top_level_await + type: RelaxedAtomicBool + value: false + mirror: always +#endif + +# The amount of time we wait between a request to GC (due to leaving a page) and doing the actual GC, in ms. +- name: javascript.options.gc_delay + type: uint32_t + value: 4000 + mirror: always + +# The amount of time we wait from the first request to GC to actually doing the first GC, in ms. +- name: javascript.options.gc_delay.first + type: uint32_t + value: 10000 + mirror: always + +# After doing a zonal GC, wait this much time (in ms) and then do a full GC, +# unless one is already pending. +- name: javascript.options.gc_delay.full + type: uint32_t + value: 60000 + mirror: always + +# Maximum amount of time that should elapse between incremental GC slices, in ms. +- name: javascript.options.gc_delay.interslice + type: uint32_t + value: 100 + mirror: always + +# nsJSEnvironmentObserver observes the memory-pressure notifications and +# forces a garbage collection and cycle collection when it happens, if the +# appropriate pref is set. +- name: javascript.options.gc_on_memory_pressure + type: bool + # Disable the JS engine's GC on memory pressure, since we do one in the + # mobile browser (bug 669346). + # XXX: this value possibly should be changed, or the pref removed entirely. + # See bug 1450787. + value: @IS_NOT_ANDROID@ + mirror: always + +- name: javascript.options.mem.log + type: bool + value: false + mirror: always + +- name: javascript.options.mem.notify + type: bool + value: false + mirror: always + +# Streams API. +- name: javascript.options.streams + type: RelaxedAtomicBool + value: true + mirror: always + +# Writable Streams API. (The pref above must also be set to expose this.) +# +# Writable streams are still EXTRAORDINARILY BETA and it is well-known that +# things are likely pretty broken if you poke much at all, so if you flip this +# preference, don't report bugs against it just yet. +- name: javascript.options.writable_streams + type: RelaxedAtomicBool + value: false + mirror: always + +- name: javascript.options.main_thread_stack_quota_cap + type: uint32_t +#if defined(MOZ_ASAN) + value: 6 * 1024 * 1024 +#else + value: 2 * 1024 * 1024 +#endif + mirror: always + +# True if off-thread parsing should use a parse GlobalObject in order to +# directly allocate to the GC from a helper thread. If false, transfer the +# CompilationStencil back to main thread before allocating GC objects. +- name: javascript.options.off_thread_parse_global + type: bool + value: false + mirror: once + +- name: javascript.options.wasm_optimizingjit + type: bool +#if defined(MOZ_AARCH64) && !defined(ENABLE_WASM_CRANELIFT) + value: false +#else + value: true +#endif + mirror: always + +#if defined(ENABLE_WASM_SIMD) +- name: javascript.options.wasm_simd + type: bool + #if defined(NIGHTLY_BUILD) + value: true + #else + value: false + #endif + mirror: always +#endif + +#if defined(ENABLE_WASM_SIMD_WORMHOLE) +# This is x64-only nightly-only and it would break unified macOS builds if +# it were in all.js +- name: javascript.options.wasm_simd_wormhole + type: bool + value: false + mirror: always +#endif + +#--------------------------------------------------------------------------- +# Prefs starting with "layers." +#--------------------------------------------------------------------------- + +# Whether to disable acceleration for all widgets. +- name: layers.acceleration.disabled + type: bool + value: false + mirror: once + do_not_use_directly: true +# Instead, use gfxConfig::IsEnabled(Feature::HW_COMPOSITING). + +- name: layers.acceleration.draw-fps + type: RelaxedAtomicBool + value: false + mirror: always + +- name: layers.acceleration.draw-fps.print-histogram + type: RelaxedAtomicBool + value: false + mirror: always + +- name: layers.acceleration.draw-fps.write-to-file + type: RelaxedAtomicBool + value: false + mirror: always + +# Whether to force acceleration on, ignoring blacklists. + +# bug 838603 -- on Android, accidentally blacklisting OpenGL layers +# means a startup crash for everyone. +# Temporarily force-enable GL compositing. This is default-disabled +# deep within the bowels of the widgetry system. Remove me when GL +# compositing isn't default disabled in widget/android. +- name: layers.acceleration.force-enabled + type: bool + value: @IS_ANDROID@ + mirror: once + do_not_use_directly: true + +- name: layers.advanced.basic-layer.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +# Whether we allow advanced layers with fission +- name: layers.advanced.fission.enabled + type: bool + value: false + mirror: always + +# Whether we allow AMD switchable graphics. +- name: layers.amd-switchable-gfx.enabled + type: bool + value: true + mirror: once + +# Whether to use async panning and zooming. +- name: layers.async-pan-zoom.enabled + type: bool + value: true + mirror: once + do_not_use_directly: true + +# Preference that when switched at runtime will run a series of benchmarks +# and output the result to stderr. +- name: layers.bench.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +- name: layers.bufferrotation.enabled + type: bool + value: true + mirror: once + +- name: layers.child-process-shutdown + type: RelaxedAtomicBool + value: true + mirror: always + +- name: layers.componentalpha.enabled + type: bool +#ifdef MOZ_GFX_OPTIMIZE_MOBILE + # Nb: we ignore this pref if MOZ_GFX_OPTIMIZE_MOBILE is defined, as if this + # pref was always false. But we go to the effort of setting it to false so + # that telemetry's reporting of the pref value is more likely to reflect what + # the code is doing. + value: false +#else + value: true +#endif + mirror: once + do_not_use_directly: true + +- name: layers.d3d11.force-warp + type: bool + value: false + mirror: once + +- name: layers.d3d11.enable-blacklist + type: bool + value: true + mirror: once + +# Enable DEAA antialiasing for transformed layers in the compositor. +- name: layers.deaa.enabled + type: RelaxedAtomicBool +#if defined(MOZ_WIDGET_ANDROID) + value: false +#else + value: true +#endif + mirror: always + +- name: layers.draw-bigimage-borders + type: RelaxedAtomicBool + value: false + mirror: always + +- name: layers.draw-borders + type: RelaxedAtomicBool + value: false + mirror: always + +- name: layers.draw-tile-borders + type: RelaxedAtomicBool + value: false + mirror: always + +- name: layers.draw-layer-info + type: RelaxedAtomicBool + value: false + mirror: always + +- name: layers.dump + type: RelaxedAtomicBool + value: false + mirror: always + +# If we're dumping layers, also dump the texture data +- name: layers.dump-texture + type: RelaxedAtomicBool + value: false + mirror: always + +#ifdef MOZ_DUMP_PAINTING +- name: layers.dump-decision + type: RelaxedAtomicBool + value: false + mirror: always +#endif + +- name: layers.dump-client-layers + type: RelaxedAtomicBool + value: false + mirror: always + +- name: layers.dump-host-layers + type: RelaxedAtomicBool + value: false + mirror: always + +- name: layers.compositing-tiles.width + type: RelaxedAtomicInt32 + value: 1024 + mirror: always + +- name: layers.compositing-tiles.height + type: RelaxedAtomicInt32 + value: 1024 + mirror: always + +# 0 is "no change" for contrast, positive values increase it, negative values +# decrease it until we hit mid gray at -1 contrast, after that it gets weird. +- name: layers.effect.contrast + type: AtomicFloat + value: 0.0f + mirror: always + +- name: layers.effect.grayscale + type: RelaxedAtomicBool + value: false + mirror: always + +- name: layers.effect.invert + type: RelaxedAtomicBool + value: false + mirror: always + +- name: layers.enable-tiles + type: bool +#if defined(XP_MACOSX) || defined (XP_OPENBSD) + value: true +#else + value: false +#endif + mirror: once + +- name: layers.enable-tiles-if-skia-pomtp + type: bool +#if defined(XP_WIN) + value: true +#else + value: false +#endif + mirror: once + +- name: layers.flash-borders + type: RelaxedAtomicBool + value: false + mirror: always + +# Force all possible layers to be always active layers. +- name: layers.force-active + type: bool + value: false + mirror: always + +- name: layers.force-shmem-tiles + type: bool + value: false + mirror: once + +- name: layers.draw-mask-debug + type: RelaxedAtomicBool + value: false + mirror: always + +- name: layers.force-synchronous-resize + type: RelaxedAtomicBool + value: true + mirror: always + +# Whether to enable arbitrary layer geometry for OpenGL compositor. +- name: layers.geometry.opengl.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# Whether to enable arbitrary layer geometry for Basic compositor. +- name: layers.geometry.basic.enabled + type: RelaxedAtomicBool + value: true + mirror: always + + # Whether to enable arbitrary layer geometry for DirectX compositor. +- name: layers.geometry.d3d11.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +- name: layers.gpu-process.allow-software + type: bool +#if defined(XP_WIN) + value: true +#else + value: false +#endif + mirror: once + +- name: layers.gpu-process.enabled + type: bool +#if defined(XP_WIN) + value: true +#else + value: false +#endif + mirror: once + +- name: layers.gpu-process.force-enabled + type: bool + value: false + mirror: once + +- name: layers.gpu-process.ipc_reply_timeout_ms + type: int32_t + value: 10000 + mirror: once + +- name: layers.gpu-process.max_restarts + type: RelaxedAtomicInt32 +#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK) + #if defined(NIGHTLY_BUILD) + value: 3 + #else + value: 1 + #endif +#else + value: 1 +#endif + mirror: always + +# Note: This pref will only be used if it is less than layers.gpu-process.max_restarts. +- name: layers.gpu-process.max_restarts_with_decoder + type: RelaxedAtomicInt32 + value: 0 + mirror: always + +- name: layers.gpu-process.startup_timeout_ms + type: int32_t + value: 5000 + mirror: once + +- name: layers.gpu-process.crash-also-crashes-browser + type: bool + value: false + mirror: always + +- name: layers.low-precision-buffer + type: RelaxedAtomicBool + value: false + mirror: always + +- name: layers.low-precision-opacity + type: AtomicFloat + value: 1.0f + mirror: always + +- name: layers.low-precision-resolution + type: AtomicFloat + value: 0.25f + mirror: always + +# Max number of layers per container. See Overwrite in mobile prefs. +- name: layers.max-active + type: RelaxedAtomicInt32 + value: -1 + mirror: always + +- name: layers.mlgpu.enabled + type: bool + value: false + mirror: once + do_not_use_directly: true + +- name: layers.mlgpu.enable-buffer-cache + type: bool + value: true + mirror: once + +- name: layers.mlgpu.enable-buffer-sharing + type: bool + value: true + mirror: once + +- name: layers.mlgpu.enable-clear-view + type: bool + value: true + mirror: once + +- name: layers.mlgpu.enable-cpu-occlusion + type: bool + value: true + mirror: once + +- name: layers.mlgpu.enable-depth-buffer + type: bool + value: false + mirror: once + +- name: layers.mlgpu.enable-invalidation + type: RelaxedAtomicBool + value: true + mirror: always + +# Both this and the master "enabled" pref must be on to use Advanced Layers +# on Windows 7. +- name: layers.mlgpu.enable-on-windows7 + type: bool +#if defined(XP_WIN) + value: true +#else + value: false +#endif + mirror: once + +# Whether to animate simple opacity and transforms on the compositor. +- name: layers.offmainthreadcomposition.async-animations + type: bool + value: true + mirror: always + +# Whether to log information about off main thread animations to stderr. +- name: layers.offmainthreadcomposition.log-animations + type: bool + value: false + mirror: always + +- name: layers.offmainthreadcomposition.force-disabled + type: bool + value: false + mirror: once + +# Compositor target frame rate. NOTE: If vsync is enabled the compositor +# frame rate will still be capped. +# -1 -> default (match layout.frame_rate or 60 FPS) +# 0 -> full-tilt mode: Recomposite even if not transaction occured. +- name: layers.offmainthreadcomposition.frame-rate + type: RelaxedAtomicInt32 + value: -1 + mirror: always + +- name: layers.omtp.capture-limit + type: uint32_t + value: 25 * 1024 * 1024 + mirror: once + +- name: layers.omtp.dump-capture + type: RelaxedAtomicBool + value: false + mirror: always + +- name: layers.omtp.paint-workers + type: int32_t + value: -1 + mirror: once + +- name: layers.omtp.release-capture-on-main-thread + type: RelaxedAtomicBool + value: false + mirror: always + +- name: layers.orientation.sync.timeout + type: RelaxedAtomicUint32 + value: (uint32_t)0 + mirror: always + +#ifdef XP_WIN +- name: layers.prefer-opengl + type: bool + value: false + mirror: once +#endif + +- name: layers.progressive-paint + type: RelaxedAtomicBool + value: false + mirror: always + +# Copy-on-write canvas. +- name: layers.shared-buffer-provider.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +- name: layers.single-tile.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# We allow for configurable and rectangular tile size to avoid wasting memory +# on devices whose screen size does not align nicely to the default tile size. +# Although layers can be any size, they are often the same size as the screen, +# especially for width. +- name: layers.tile-width + type: int32_t + value: 512 + mirror: once + +- name: layers.tile-height + type: int32_t + value: 512 + mirror: once + +- name: layers.tile-initial-pool-size + type: uint32_t + value: (uint32_t)50 + mirror: once + +- name: layers.tile-pool-unused-size + type: uint32_t + value: (uint32_t)10 + mirror: once + +- name: layers.tile-pool-shrink-timeout + type: uint32_t + value: (uint32_t)50 + mirror: once + +- name: layers.tile-pool-clear-timeout + type: uint32_t + value: (uint32_t)5000 + mirror: once + +# If this is set the tile size will only be treated as a suggestion. +# On B2G we will round this to the stride of the underlying allocation. +# On any platform we may later use the screen size and ignore +# tile-width/tile-height entirely. Its recommended to turn this off +# if you change the tile size. +- name: layers.tiles.adjust + type: bool + value: true + mirror: once + +- name: layers.tiles.edge-padding + type: bool + value: @IS_ANDROID@ + mirror: once + +- name: layers.tiles.fade-in.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +- name: layers.tiles.fade-in.duration-ms + type: RelaxedAtomicUint32 + value: 250 + mirror: always + +- name: layers.tiles.retain-back-buffer + type: RelaxedAtomicBool + value: true + mirror: always + +- name: layers.transaction.warning-ms + type: RelaxedAtomicUint32 + value: 200 + mirror: always + +- name: layers.uniformity-info + type: bool + value: false + mirror: once + +- name: layers.use-image-offscreen-surfaces + type: bool + value: true + mirror: once + +- name: layers.recycle-allocator-rdd + type: bool + value: true + mirror: once + +- name: layers.iosurfaceimage.recycle-limit + type: RelaxedAtomicUint32 + value: 15 + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "layout." +#--------------------------------------------------------------------------- + +# Debug-only pref to force enable the AccessibleCaret. If you want to +# control AccessibleCaret by mouse, you'll need to set +# "layout.accessiblecaret.hide_carets_for_mouse_input" to false. +- name: layout.accessiblecaret.enabled + type: bool + value: false + mirror: always + +# Enable the accessible caret on platforms/devices +# that we detect have touch support. Note that this pref is an +# additional way to enable the accessible carets, rather than +# overriding the layout.accessiblecaret.enabled pref. +- name: layout.accessiblecaret.enabled_on_touch + type: bool + value: true + mirror: always + +# By default, carets become tilt only when they are overlapping. +- name: layout.accessiblecaret.always_tilt + type: bool + value: false + mirror: always + +# Show caret in cursor mode when long tapping on an empty content. This +# also changes the default update behavior in cursor mode, which is based +# on the emptiness of the content, into something more heuristic. See +# AccessibleCaretManager::UpdateCaretsForCursorMode() for the details. +- name: layout.accessiblecaret.caret_shown_when_long_tapping_on_empty_content + type: bool + value: false + mirror: always + +# 0 = by default, always hide carets for selection changes due to JS calls. +# 1 = update any visible carets for selection changes due to JS calls, +# but don't show carets if carets are hidden. +# 2 = always show carets for selection changes due to JS calls. +- name: layout.accessiblecaret.script_change_update_mode + type: int32_t + value: 0 + mirror: always + +# Allow one caret to be dragged across the other caret without any limitation. +# This matches the built-in convention for all desktop platforms. +- name: layout.accessiblecaret.allow_dragging_across_other_caret + type: bool + value: true + mirror: always + +# Optionally provide haptic feedback on long-press selection events. +- name: layout.accessiblecaret.hapticfeedback + type: bool + value: false + mirror: always + +# Smart phone-number selection on long-press is not enabled by default. +- name: layout.accessiblecaret.extend_selection_for_phone_number + type: bool + value: false + mirror: always + +# Keep the accessible carets hidden when the user is using mouse input (as +# opposed to touch/pen/etc.). +- name: layout.accessiblecaret.hide_carets_for_mouse_input + type: bool + value: true + mirror: always + +# CSS attributes (width, height, margin-left) of the AccessibleCaret in CSS +# pixels. +- name: layout.accessiblecaret.width + type: float + value: 34.0f + mirror: always + +- name: layout.accessiblecaret.height + type: float + value: 36.0f + mirror: always + +- name: layout.accessiblecaret.margin-left + type: float + value: -18.5f + mirror: always + +- name: layout.accessiblecaret.transition-duration + type: float + value: 250.0f + mirror: always + +# Simulate long tap events to select words. Mainly used in manual testing +# with mouse. +- name: layout.accessiblecaret.use_long_tap_injector + type: bool + value: false + mirror: always + +# Whether we should layerize all animated images (if otherwise possible). +- name: layout.animated-image-layers.enabled + type: bool + value: false + mirror: always + +# One of several prefs affecting the maximum area to pre-render when animating +# a large element on the compositor. +# This pref enables transform (and transform like properties) animations on a +# large element run on the compositor with rendering partial area of the +# element on the main thread instead of rendering the whole area. Once the +# animation tried to composite out of the partial rendered area, the animation +# is rendered again with the latest visible partial area. +- name: layout.animation.prerender.partial + type: RelaxedAtomicBool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +# One of several prefs affecting the maximum area to pre-render when animating +# a large element on the compositor. +# This value is applied to both x and y axes and a perfect square contructed +# by the greater axis value which will be capped by the absolute limits is used +# for the partial pre-render area. +- name: layout.animation.prerender.viewport-ratio-limit + type: AtomicFloat + value: 1.125f + mirror: always + +# One of several prefs affecting the maximum area to pre-render when animating +# a large element on the compositor. +- name: layout.animation.prerender.absolute-limit-x + type: RelaxedAtomicUint32 + value: 4096 + mirror: always + +# One of several prefs affecting the maximum area to pre-render when animating +# a large element on the compositor. +- name: layout.animation.prerender.absolute-limit-y + type: RelaxedAtomicUint32 + value: 4096 + mirror: always + +# Test-only pref, if this is true, partial pre-rendered transform animations +# get stuck when it reaches to the pre-rendered boundaries and the pre-render +# region is never updated. +- name: layout.animation.prerender.partial.jank + type: RelaxedAtomicBool + value: false + mirror: always + +# Whether Constructable Stylesheets are enabled in script. +- name: layout.css.constructable-stylesheets.enabled + type: bool + value: false + mirror: always + +# Should we look for counter ancestor scopes first? +- name: layout.css.counter-ancestor-scope.enabled + type: bool + value: true + mirror: always + +# Whether we get notified of history queries for visited even if unvisited. +- name: layout.css.notify-of-unvisited + type: RelaxedAtomicBool + value: true + mirror: always + +# Whether we always restyle / repaint as a result of a visited query +- name: layout.css.always-repaint-on-unvisited + type: RelaxedAtomicBool + value: true + mirror: always + +# Make `zoom` a `transform` + `transform-origin` alias. +- name: layout.css.zoom-transform-hack.enabled + type: RelaxedAtomicBool + value: false + mirror: always + rust: true + +# Whether the `no-preference` value for `prefers-color-scheme` is parsed. +# +# It never matches regardless. +- name: layout.css.prefers-color-scheme-no-preference.enabled + type: RelaxedAtomicBool + value: false + mirror: always + rust: true + +# Whether the `:focus-visible` pseudo-class is enabled. +# +# NOTE: You probably want to change the default value of +# browser.display.always_show_rings_after_key_focus whenever you change the +# default value of this pref. +- name: layout.css.focus-visible.enabled + type: RelaxedAtomicBool + value: true + mirror: always + rust: true + +# Whether the `:autofill` pseudo-class is exposed to content. +- name: layout.css.autofill.enabled + type: RelaxedAtomicBool + value: true + mirror: always + rust: true + +# Whether the `aspect-ratio` in css-sizing-4 is enabled. +- name: layout.css.aspect-ratio.enabled + type: bool + value: @IS_NIGHTLY_BUILD@ + mirror: always + rust: true + +# Is the codepath for using cached scrollbar styles enabled? +- name: layout.css.cached-scrollbar-styles.enabled + type: bool + value: true + mirror: always + +# Is path() supported in clip-path? +- name: layout.css.clip-path-path.enabled + type: RelaxedAtomicBool + value: true + mirror: always + rust: true + +# Is the image-set() function enabled? +- name: layout.css.image-set.enabled + type: RelaxedAtomicBool + value: @IS_NIGHTLY_BUILD@ + mirror: always + rust: true + +# Are implicit tracks in computed grid templates serialized? +- name: layout.css.serialize-grid-implicit-tracks + type: RelaxedAtomicBool + value: true + mirror: always + +# Set the number of device pixels per CSS pixel. A value <= 0 means choose +# automatically based on user settings for the platform (e.g., "UI scale factor" +# on Mac). A positive value is used as-is. This effectively controls the size +# of a CSS "px". This is only used for windows on the screen, not for printing. +- name: layout.css.devPixelsPerPx + type: AtomicFloat + value: -1.0f + mirror: always + +# Is support for CSS backdrop-filter enabled? +- name: layout.css.backdrop-filter.enabled + type: bool + value: false + mirror: always + +# Should stray control characters be rendered visibly? +- name: layout.css.control-characters.visible + type: RelaxedAtomicBool + value: @IS_NOT_RELEASE_OR_BETA@ + mirror: always + rust: true + +# Is support for GeometryUtils.convert*FromNode enabled? +- name: layout.css.convertFromNode.enabled + type: bool + value: @IS_NOT_RELEASE_OR_BETA@ + mirror: always + +- name: layout.css.cross-fade.enabled + type: RelaxedAtomicBool + value: false + mirror: always + rust: true + +# Is support for DOMMatrix enabled? +- name: layout.css.DOMMatrix.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# Is support for DOMQuad enabled? +- name: layout.css.DOMQuad.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# Is support for DOMPoint enabled? +- name: layout.css.DOMPoint.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# Are we emulating -moz-{inline}-box layout using CSS flexbox? +- name: layout.css.emulate-moz-box-with-flex + type: bool + value: false + mirror: always + +# Is support for the font-display @font-face descriptor enabled? +- name: layout.css.font-display.enabled + type: RelaxedAtomicBool + value: true + mirror: always + rust: true + +# Is support for document.fonts enabled? +- name: layout.css.font-loading-api.enabled + type: bool + value: true + mirror: always + +# Is support for variation fonts enabled? +- name: layout.css.font-variations.enabled + type: RelaxedAtomicBool + value: true + mirror: always + rust: true + +# Visibility level of font families available to CSS font-matching: +# 1 - only base system fonts +# 2 - also fonts from optional language packs +# 3 - also user-installed fonts +- name: layout.css.font-visibility.level + type: RelaxedAtomicInt32 + value: 3 + mirror: always + +# Is support for GeometryUtils.getBoxQuads enabled? +- name: layout.css.getBoxQuads.enabled + type: bool + value: @IS_NOT_RELEASE_OR_BETA@ + mirror: always + +# Is support for CSS "grid-template-{columns,rows}: subgrid X" enabled? +- name: layout.css.grid-template-subgrid-value.enabled + type: RelaxedAtomicBool + value: true + mirror: always + rust: true + +# Is support for CSS masonry layout enabled? +- name: layout.css.grid-template-masonry-value.enabled + type: RelaxedAtomicBool + value: @IS_NIGHTLY_BUILD@ + mirror: always + rust: true + +# Is support for CSS individual transform enabled? +- name: layout.css.individual-transform.enabled + type: bool + value: true + mirror: always + +# Is the initial value for the image-orientation property 'from-image'? +- name: layout.css.image-orientation.initial-from-image + type: RelaxedAtomicBool + value: true + mirror: always + rust: true + +# Is support for CSS initial-letter property enabled? +- name: layout.css.initial-letter.enabled + type: bool + value: false + mirror: always + +# Pref to control whether line-height: -moz-block-height is exposed to content. +- name: layout.css.line-height-moz-block-height.content.enabled + type: RelaxedAtomicBool + value: false + mirror: always + rust: true + +# Is support for motion-path enabled? +- name: layout.css.motion-path.enabled + type: bool + value: true + mirror: always + +# Is support for motion-path ray() enabled? +- name: layout.css.motion-path-ray.enabled + type: RelaxedAtomicBool + value: @IS_NIGHTLY_BUILD@ + mirror: always + rust: true + +# Pref to control whether the ::marker property restrictions defined in [1] +# apply. +# +# [1]: https://drafts.csswg.org/css-pseudo-4/#selectordef-marker +- name: layout.css.marker.restricted + type: RelaxedAtomicBool + value: true + mirror: always + rust: true + +# Is support for math-style enabled? +- name: layout.css.math-style.enabled + type: RelaxedAtomicBool + value: @IS_NIGHTLY_BUILD@ + mirror: always + rust: true + +# Is support for math-depth enabled? +# This must not be enabled until implementation is complete (see bug 1667090). +- name: layout.css.math-depth.enabled + type: RelaxedAtomicBool + value: false + mirror: always + rust: true + +# Pref to control whether @-moz-document rules are enabled in content pages. +- name: layout.css.moz-document.content.enabled + type: RelaxedAtomicBool + value: false + mirror: always + rust: true + +# Is -moz-osx-font-smoothing enabled? (Only supported in OSX builds) +- name: layout.css.osx-font-smoothing.enabled + type: bool +#if defined(XP_MACOSX) + value: true +#else + value: false +#endif + mirror: always + +# Is support for CSS overflow-clip-box enabled for non-UA sheets? +- name: layout.css.overflow-clip-box.enabled + type: bool + value: false + mirror: always + +# Is support for overscroll-behavior enabled? +- name: layout.css.overscroll-behavior.enabled + type: bool + value: true + mirror: always + +- name: layout.css.overflow-logical.enabled + type: bool + value: true + mirror: always + +# Dictates whether or not the prefers contrast media query will be +# usable. +# true: prefers-contrast will toggle based on OS and browser settings. +# false: prefers-contrast will only parse and toggle in the browser +# chrome and ua. +- name: layout.css.prefers-contrast.enabled + type: RelaxedAtomicBool + value: false + mirror: always + rust: true + +# Dictates whether or not the forced-colors media query is enabled. +- name: layout.css.forced-colors.enabled + type: RelaxedAtomicBool + value: false + mirror: always + rust: true + +# Is support for -moz-prefixed animation properties enabled? +- name: layout.css.prefixes.animations + type: bool + value: true + mirror: always + +# Is support for -moz-border-image enabled? +- name: layout.css.prefixes.border-image + type: bool + value: true + mirror: always + +# Is support for -moz-box-sizing enabled? +- name: layout.css.prefixes.box-sizing + type: bool + value: true + mirror: always + +# Is support for -moz-prefixed multi-column properties (including column-gap) enabled? +- name: layout.css.prefixes.columns + type: bool + value: false + mirror: always + +# Is support for -moz-prefixed font feature properties enabled? +- name: layout.css.prefixes.font-features + type: bool + value: true + mirror: always + +# Is support for -moz-prefixed transform properties enabled? +- name: layout.css.prefixes.transforms + type: bool + value: true + mirror: always + +# Is support for -moz-prefixed transition properties enabled? +- name: layout.css.prefixes.transitions + type: bool + value: true + mirror: always + +# Is CSS error reporting enabled? +- name: layout.css.report_errors + type: bool + value: true + mirror: always + +- name: layout.css.resizeobserver.enabled + type: bool + value: true + mirror: always + +# Are inter-character ruby annotations enabled? +- name: layout.css.ruby.intercharacter.enabled + type: bool + value: false + mirror: always + +- name: layout.css.scroll-behavior.damping-ratio + type: AtomicFloat + value: 1.0f + mirror: always + +- name: layout.css.supports-selector.enabled + type: RelaxedAtomicBool + value: true + mirror: always + rust: true + +# Is CSSOM-View scroll-behavior and its MSD smooth scrolling enabled? +- name: layout.css.scroll-behavior.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# Tuning of the smooth scroll motion used by CSSOM-View scroll-behavior. +# Spring-constant controls the strength of the simulated MSD +# (Mass-Spring-Damper). +- name: layout.css.scroll-behavior.spring-constant + type: AtomicFloat + value: 250.0f + mirror: always + +# When selecting the snap point for CSS scroll snapping, the velocity of the +# scroll frame is clamped to this speed, in CSS pixels / s. +- name: layout.css.scroll-snap.prediction-max-velocity + type: RelaxedAtomicInt32 + value: 2000 + mirror: always + +# When selecting the snap point for CSS scroll snapping, the velocity of the +# scroll frame is integrated over this duration, in seconds. The snap point +# best suited for this position is selected, enabling the user to perform fling +# gestures. +- name: layout.css.scroll-snap.prediction-sensitivity + type: AtomicFloat + value: 0.750f + mirror: always + +# Set the threshold distance in CSS pixels below which scrolling will snap to +# an edge, when scroll snapping is set to "proximity". +- name: layout.css.scroll-snap.proximity-threshold + type: RelaxedAtomicInt32 + value: 200 + mirror: always + +# Is steps(jump-*) supported in easing functions? +- name: layout.css.step-position-jump.enabled + type: RelaxedAtomicBool + value: true + mirror: always + rust: true + +# W3C touch-action css property (related to touch and pointer events) +# Note that we turn this on even on platforms/configurations where touch +# events are not supported (e.g. OS X, or Windows with e10s disabled). For +# those platforms we don't handle touch events anyway so it's conceptually +# a no-op. +- name: layout.css.touch_action.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# Are counters for implemented CSS properties enabled? +- name: layout.css.use-counters.enabled + type: bool + value: true + mirror: always + +# Are counters for unimplemented CSS properties enabled? +- name: layout.css.use-counters-unimplemented.enabled + type: RelaxedAtomicBool + value: true + mirror: always + rust: true + +# Should the :visited selector ever match (otherwise :link matches instead)? +- name: layout.css.visited_links_enabled + type: bool + value: true + mirror: always + +- name: layout.css.xul-display-values.content.enabled + type: RelaxedAtomicBool + value: false + mirror: always + rust: true + +# Pref to control whether display: -moz-box and display: -moz-inline-box are +# parsed in content pages. +- name: layout.css.xul-box-display-values.content.enabled + type: RelaxedAtomicBool + value: false + mirror: always + rust: true + +# Whether to block large cursors intersecting UI. +- name: layout.cursor.block.enabled + type: bool + value: true + mirror: always + +# The maximum width or height of the cursor we should allow when intersecting +# the UI, in CSS pixels. +- name: layout.cursor.block.max-size + type: uint32_t + value: 32 + mirror: always + +- name: layout.display-list.build-twice + type: RelaxedAtomicBool + value: false + mirror: always + +# Toggle retaining display lists between paints. +- name: layout.display-list.retain + type: RelaxedAtomicBool + value: true + mirror: always + +# Toggle retaining display lists between paints. +- name: layout.display-list.retain.chrome + type: RelaxedAtomicBool + value: true + mirror: always + +# Set the maximum number of modified frames allowed before doing a full +# display list rebuild. +- name: layout.display-list.rebuild-frame-limit + type: RelaxedAtomicUint32 + value: 500 + mirror: always + +# Pref to dump the display list to the log. Useful for debugging drawing. +- name: layout.display-list.dump + type: RelaxedAtomicBool + value: false + mirror: always + +# Pref to dump the display list to the log. Useful for debugging drawing. +- name: layout.display-list.dump-content + type: RelaxedAtomicBool + value: false + mirror: always + +# Pref to dump the display list to the log. Useful for debugging drawing. +- name: layout.display-list.dump-parent + type: RelaxedAtomicBool + value: false + mirror: always + +- name: layout.display-list.show-rebuild-area + type: RelaxedAtomicBool + value: false + mirror: always + +- name: layout.display-list.flatten-transform + type: RelaxedAtomicBool + value: true + mirror: always + +- name: layout.display-list.improve-fragmentation + type: RelaxedAtomicBool + value: true + mirror: always + +# Are dynamic reflow roots enabled? +- name: layout.dynamic-reflow-roots.enabled + type: bool + value: @IS_EARLY_BETA_OR_EARLIER@ + mirror: always + +# Enables the <input type=search> custom layout frame with a clear icon. +# Still needs tests and a web-exposed way to remove that icon, see bug 1654288. +- name: layout.forms.input-type-search.enabled + type: bool + value: false + mirror: always + +# Pref to control browser frame rate, in Hz. A value <= 0 means choose +# automatically based on knowledge of the platform (or 60Hz if no platform- +# specific information is available). +- name: layout.frame_rate + type: RelaxedAtomicInt32 + value: -1 + mirror: always + +# The time in number of frames that we estimate for a refresh driver +# to be quiescent. +- name: layout.idle_period.required_quiescent_frames + type: uint32_t + value: 2 + mirror: always + +# The amount of time (milliseconds) needed between an idle period's +# end and the start of the next tick to avoid jank. +- name: layout.idle_period.time_limit + type: uint32_t + value: 1 + mirror: always + +# Enable/disable interruptible reflow, which allows reflows to stop +# before completion (and display the partial results) when user events +# are pending. +- name: layout.interruptible-reflow.enabled + type: bool + value: true + mirror: always + +- name: layout.min-active-layer-size + type: int32_t + value: 64 + mirror: always + +- name: layout.paint_rects_separately + type: bool + value: true + mirror: once + +# On Android, don't synth mouse move events after scrolling, as they cause +# unexpected user-visible behaviour. Can remove this after bug 1633450 is +# satisfactorily resolved. +- name: layout.reflow.synthMouseMove + type: bool + value: @IS_NOT_ANDROID@ + mirror: always + +# This pref is to be set by test code only. +- name: layout.scrollbars.always-layerize-track + type: RelaxedAtomicBool + value: false + mirror: always + +# Controls caret style and word-delete during text selection. +# 0: Use platform default +# 1: Caret moves and blinks as when there is no selection; word +# delete deselects the selection and then deletes word. +# 2: Caret moves to selection edge and is not visible during selection; +# word delete deletes the selection (Mac and Linux default). +# 3: Caret moves and blinks as when there is no selection; word delete +# deletes the selection. +# Windows default is 1 for word delete behavior, the rest as for 2. +- name: layout.selection.caret_style + type: int32_t + value: 0 + mirror: always + +# If layout.show_previous_page is true then during loading of a new page we +# will draw the previous page if the new page has painting suppressed. +- name: layout.show_previous_page + type: bool + value: true + mirror: always + +- name: layout.smaller-painted-layers + type: RelaxedAtomicBool + value: false + mirror: always + +# Pref to stop overlay scrollbars from fading out, for testing purposes. +- name: layout.testing.overlay-scrollbars.always-visible + type: bool + value: false + mirror: always + +- name: layout.lower_priority_refresh_driver_during_load + type: bool + value: true + mirror: always + +# Is layout of CSS outline-style:auto enabled? +- name: layout.css.outline-style-auto.enabled + type: bool + value: true + mirror: always + +# Pref to control enabling scroll anchoring. +- name: layout.css.scroll-anchoring.enabled + type: bool + value: true + mirror: always + +# Pref to control how many consecutive scroll-anchoring adjustments (since the +# most recent user scroll) we'll average, before we consider whether to +# automatically turn off scroll anchoring. When we hit this threshold, the +# actual decision to disable also depends on the +# min-average-adjustment-threshold pref, see below for more details. +# +# Zero disables the heuristic. +- name: layout.css.scroll-anchoring.max-consecutive-adjustments + type: uint32_t + value: 10 + mirror: always + +# Pref to control whether we should disable scroll anchoring on a scroller +# where at least max-consecutive-adjustments have happened, and which the +# average adjustment ends up being less than this number, in CSS pixels. +# +# So, for example, given max-consecutive-adjustments=10 and +# min-average-adjustment-treshold=3, we'll block scroll anchoring if there have +# been 10 consecutive adjustments without a user scroll or more, and the +# average offset difference between them amount to less than 3 CSS pixels. +- name: layout.css.scroll-anchoring.min-average-adjustment-threshold + type: uint32_t + value: 3 + mirror: always + +# Pref to control disabling scroll anchoring suppression triggers, see +# +# https://drafts.csswg.org/css-scroll-anchoring/#suppression-triggers +# +# Those triggers should be unnecessary after bug 1561450. +- name: layout.css.scroll-anchoring.suppressions.enabled + type: bool + value: true + mirror: always + +- name: layout.css.scroll-anchoring.highlight + type: bool + value: false + mirror: always + +# Are shared memory User Agent style sheets enabled? +- name: layout.css.shared-memory-ua-sheets.enabled + type: bool + value: true + mirror: always + +# Is support for -webkit-line-clamp enabled? +- name: layout.css.webkit-line-clamp.enabled + type: bool + value: true + mirror: always + +# Whether the computed value of line-height: normal returns the `normal` +# keyword rather than a pixel value based on the first available font. +# +# Only enabled on Nightly and early beta, at least for now. +# +# It'd be nice to make numbers compute also to themselves, but it looks like +# everybody agrees on turning them into pixels, see the discussion starting +# from [1]. +# +# [1]: https://github.com/w3c/csswg-drafts/issues/3749#issuecomment-477287453 +- name: layout.css.line-height.normal-as-resolved-value.enabled + type: bool + value: true + mirror: always + +# Are the width and height attributes on image-like elements mapped to the +# internal-for-now aspect-ratio property? +- name: layout.css.width-and-height-map-to-aspect-ratio.enabled + type: bool + value: true + mirror: always + +# Whether :is() and :where() ignore errors inside their selector lists +# internally, rather than failing to parse altogether. +# +# See https://github.com/w3c/csswg-drafts/issues/3264 +- name: layout.css.is-and-where-better-error-recovery.enabled + type: RelaxedAtomicBool + value: true + mirror: always + rust: true + +# Whether frame visibility tracking is enabled globally. +- name: layout.framevisibility.enabled + type: bool + value: true + mirror: always + +# The fraction of the scrollport we allow to horizontally scroll by before we +# schedule an update of frame visibility. +- name: layout.framevisibility.amountscrollbeforeupdatehorizontal + type: int32_t + value: 2 + mirror: always + +# The fraction of the scrollport we allow to vertically scroll by before we +# schedule an update of frame visibility. +- name: layout.framevisibility.amountscrollbeforeupdatevertical + type: int32_t + value: 2 + mirror: always + +# The number of scrollports wide to expand when tracking frame visibility. +- name: layout.framevisibility.numscrollportwidths + type: uint32_t +#ifdef ANDROID + value: 1 +#else + value: 0 +#endif + mirror: always + +# The number of scrollports high to expand when tracking frame visibility. +- name: layout.framevisibility.numscrollportheights + type: uint32_t + value: 1 + mirror: always + +# Test only. +- name: layout.dynamic-toolbar-max-height + type: RelaxedAtomicInt32 + value: 0 + mirror: always + +# Controls double click and Alt+Arrow word selection behavior. +- name: layout.word_select.eat_space_to_next_word + type: bool +#ifdef XP_WIN + value: true +#else + value: false +#endif + mirror: always + +- name: layout.word_select.stop_at_punctuation + type: bool + value: true + mirror: always + +# Whether underscore should be treated as a word-breaking character for +# word selection/arrow-key movement purposes. +- name: layout.word_select.stop_at_underscore + type: bool + value: false + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "mathml." +#--------------------------------------------------------------------------- + +# Whether to disable deprecated style attributes background, color, fontfamily, +# fontsize, fontstyle and fontweight. +- name: mathml.deprecated_style_attributes.disabled + type: bool + value: true + mirror: always + +# Whether to disable deprecated "radical" notation for the menclose element. +- name: mathml.deprecated_menclose_notation_radical.disabled + type: bool + value: true + mirror: always + +# Whether to disable legacy names "small", "normal" and "big" for the +# mathsize attribute. +- name: mathml.mathsize_names.disabled + type: bool + value: true + mirror: always + +# Whether to disable legacy names "thickmathspace", "mediummathspace", +# "thickmathspace" etc for length attributes. +- name: mathml.mathspace_names.disabled + type: bool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +# Whether to disable the mfrac bevelled attribute. +- name: mathml.mfrac_bevelled_attribute.disabled + type: bool + value: true + mirror: always + +# Whether to disable legacy names "thin", "thick" and "medium" for the +# linethickness attribute of the mfrac element. +- name: mathml.mfrac_linethickness_names.disabled + type: bool + value: true + mirror: always + +# Whether to disable deprecated numalign/denomalign/align attributes +- name: mathml.deprecated_alignment_attributes.disabled + type: bool + value: true + mirror: always + +# Whether to disable subscriptshift and superscriptshift attributes. +- name: mathml.script_shift_attributes.disabled + type: bool + value: true + mirror: always + +# Whether to disable the scriptminsize attribute. +# Note that this only disables parsing, not the default effect when no attribute +# is unspecified. +- name: mathml.scriptminsize_attribute.disabled + type: bool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +# Whether to disable the scriptsizemultiplier attribute. +- name: mathml.scriptsizemultiplier_attribute.disabled + type: bool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +# Whether to disable support for XLink on MathML elements. +- name: mathml.xlink.disabled + type: bool + value: true + mirror: always + +# Whether to disable support for stretching operators with STIXGeneral fonts. +# macos still has the deprecated STIXGeneral font pre-installed. +- name: mathml.stixgeneral_operator_stretching.disabled + type: bool +#if defined(XP_MACOSX) + value: @IS_NIGHTLY_BUILD@ +#else + value: true +#endif + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "media." +#--------------------------------------------------------------------------- + + +# This pref defines what the blocking policy would be used in blocking autoplay. +# 0 : use sticky activation (default) +# https://html.spec.whatwg.org/multipage/interaction.html#sticky-activation +# 1 : use transient activation (the transient activation duration can be +# adjusted by the pref `dom.user_activation.transient.timeout`) +# https://html.spec.whatwg.org/multipage/interaction.html#transient-activation +# 2 : user input depth (allow autoplay when the play is trigged by user input +# which is determined by the user input depth) +- name: media.autoplay.blocking_policy + type: uint32_t + value: 0 + mirror: always + +# File-backed MediaCache size. +- name: media.cache_size + type: RelaxedAtomicUint32 + value: 512000 # Measured in KiB + mirror: always + +# Size of file backed MediaCache while on a connection which is cellular (3G, +# etc), and thus assumed to be "expensive". +- name: media.cache_size.cellular + type: RelaxedAtomicUint32 + value: 32768 # Measured in KiB + mirror: always + +# Whether cubeb is sandboxed +- name: media.cubeb.sandbox + type: bool + mirror: always +#if defined(XP_LINUX) && !defined(MOZ_WIDGET_ANDROID) + value: true +#elif defined(XP_WIN) && !defined(_ARM64_) + value: true +#else + value: false +#endif + +# Whether or not to pass AUDCLNT_STREAMOPTIONS_RAW when initializing audio +# streams when using WASAPI. +# 0 - don't use RAW streams +# 1 - use RAW streams for input streams only +# 2 - use RAW streams for output streams only +# 3 - use RAW streams for input and output streams +#if defined (XP_WIN) +- name: media.cubeb.wasapi-raw + type: RelaxedAtomicUint32 + mirror: always + value: 1 +#endif // XP_WIN + +# ClockDrift desired buffering in milliseconds +- name: media.clockdrift.buffering + type: int32_t + mirror: always + value: 50 + +# If a resource is known to be smaller than this size (in kilobytes), a +# memory-backed MediaCache may be used; otherwise the (single shared global) +# file-backed MediaCache is used. +- name: media.memory_cache_max_size + type: uint32_t + value: 8192 # Measured in KiB + mirror: always + +# Don't create more memory-backed MediaCaches if their combined size would go +# above this absolute size limit. +- name: media.memory_caches_combined_limit_kb + type: uint32_t + value: 524288 + mirror: always + +# Don't create more memory-backed MediaCaches if their combined size would go +# above this relative size limit (a percentage of physical memory). +- name: media.memory_caches_combined_limit_pc_sysmem + type: uint32_t + value: 5 # A percentage + mirror: always + +# When a network connection is suspended, don't resume it until the amount of +# buffered data falls below this threshold (in seconds). +- name: media.cache_resume_threshold + type: RelaxedAtomicUint32 + value: 30 + mirror: always +- name: media.cache_resume_threshold.cellular + type: RelaxedAtomicUint32 + value: 10 + mirror: always + +# Stop reading ahead when our buffered data is this many seconds ahead of the +# current playback position. This limit can stop us from using arbitrary +# amounts of network bandwidth prefetching huge videos. +- name: media.cache_readahead_limit + type: RelaxedAtomicUint32 + value: 60 + mirror: always +- name: media.cache_readahead_limit.cellular + type: RelaxedAtomicUint32 + value: 30 + mirror: always + +# MediaCapabilities +- name: media.mediacapabilities.drop-threshold + type: RelaxedAtomicInt32 + value: 95 + mirror: always + +- name: media.mediacapabilities.from-database + type: RelaxedAtomicBool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +# AudioSink +- name: media.resampling.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +# libcubeb backend implements .get_preferred_channel_layout +- name: media.forcestereo.enabled + type: RelaxedAtomicBool +#if defined(XP_WIN) || defined(XP_DARWIN) || defined(MOZ_PULSEAUDIO) + value: false +#else + value: true +#endif + mirror: always + +# MediaSource + +# Whether to enable MediaSource support. +- name: media.mediasource.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +- name: media.mediasource.mp4.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +- name: media.mediasource.webm.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# Check if vp9 is enabled by default in mediasource. False on Android. +# If disabled, vp9 will only be enabled under some conditions: +# - h264 HW decoding is not supported +# - mp4 is not enabled +# - Device was deemed fast enough to decode VP9 via the VP9Benchmark utility +# - A VP9 HW decoder is present. +- name: media.mediasource.vp9.enabled + type: RelaxedAtomicBool + value: @IS_NOT_ANDROID@ + mirror: always + +- name: media.mediasource.webm.audio.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# Whether to enable MediaSource v2 support. +- name: media.mediasource.experimental.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +# VideoSink +- name: media.ruin-av-sync.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +# Encrypted Media Extensions +- name: media.eme.enabled + type: bool +#if defined(XP_LINUX) && !defined(MOZ_WIDGET_ANDROID) + # On Linux EME is visible but disabled by default. This is so that the "Play + # DRM content" checkbox in the Firefox UI is unchecked by default. DRM + # requires downloading and installing proprietary binaries, which users on an + # open source operating systems didn't opt into. The first time a site using + # EME is encountered, the user will be prompted to enable DRM, whereupon the + # EME plugin binaries will be downloaded if permission is granted. + value: false +#else + value: true +#endif + mirror: always + +# Whether we expose the functionality proposed in +# https://github.com/WICG/encrypted-media-encryption-scheme/blob/master/explainer.md +# I.e. if true, apps calling navigator.requestMediaKeySystemAccess() can pass +# an optional encryption scheme as part of MediaKeySystemMediaCapability +# objects. If a scheme is present when we check for support, we must ensure we +# support that scheme in order to provide key system access. +- name: media.eme.encrypted-media-encryption-scheme.enabled + type: bool + value: false + mirror: always + +# Do we need explicit approval from the application to allow access to EME? +# If true, Gecko will ask for permission before allowing MediaKeySystemAccess. +# At time of writing this is aimed at GeckoView, and setting this to true +# outside of GeckoView or test environments will likely break EME. +- name: media.eme.require-app-approval + type: bool + value: false + mirror: always + +- name: media.eme.audio.blank + type: RelaxedAtomicBool + value: false + mirror: always + +- name: media.eme.video.blank + type: RelaxedAtomicBool + value: false + mirror: always + +- name: media.eme.chromium-api.video-shmems + type: RelaxedAtomicUint32 + value: 6 + mirror: always + +# Is support for MediaKeys.getStatusForPolicy enabled? +- name: media.eme.hdcp-policy-check.enabled + type: bool + value: false + mirror: always + +- name: media.clearkey.persistent-license.enabled + type: bool + value: false + mirror: always + +- name: media.cloneElementVisually.testing + type: bool + value: false + mirror: always + +#if defined(XP_LINUX) && defined(MOZ_SANDBOX) + # Whether to allow, on a Linux system that doesn't support the necessary + # sandboxing features, loading Gecko Media Plugins unsandboxed. However, EME + # CDMs will not be loaded without sandboxing even if this pref is changed. +- name: media.gmp.insecure.allow + type: RelaxedAtomicBool + value: false + mirror: always +#endif + +#ifdef XP_MACOSX + # These prefs control whether or not a universal build running on + # an Apple Silicon machine will attempt to use an x64 Widevine or + # OpenH264 plugin. This requires launching the GMP child process + # executable in x64 mode. We expect to allow this for Widevine until + # an arm64 version of Widevine is made available. We don't expect + # to need to allow this for OpenH264. + # + # Allow a Widevine GMP x64 process to be executed on ARM builds. +- name: media.gmp-widevinecdm.allow-x64-plugin-on-arm64 + type: RelaxedAtomicBool + value: true + mirror: always + + # Don't allow an OpenH264 GMP x64 process to be executed on ARM builds. +- name: media.gmp-gmpopenh264.allow-x64-plugin-on-arm64 + type: RelaxedAtomicBool + value: false + mirror: always +#endif + +# Specifies whether the PDMFactory can create a test decoder that just outputs +# blank frames/audio instead of actually decoding. The blank decoder works on +# all platforms. +- name: media.use-blank-decoder + type: RelaxedAtomicBool + value: false + mirror: always + +- name: media.gpu-process-decoder + type: RelaxedAtomicBool +#if defined(XP_WIN) + value: true +#else + value: false +#endif + mirror: always + +- name: media.rdd-process.enabled + type: RelaxedAtomicBool +#if defined(XP_WIN) + value: true +#elif defined(XP_MACOSX) + value: true +#elif defined(XP_LINUX) && !defined(ANDROID) + value: true +#else + value: false +#endif + mirror: always + +- name: media.rdd-retryonfailure.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +- name: media.rdd-process.startup_timeout_ms + type: RelaxedAtomicInt32 + value: 5000 + mirror: always + +#ifdef MOZ_FFMPEG +- name: media.rdd-ffmpeg.enabled + type: RelaxedAtomicBool + value: false + mirror: always +#endif + +#ifdef MOZ_FFVPX +- name: media.rdd-ffvpx.enabled + type: RelaxedAtomicBool +#if defined(XP_WIN) + value: true +#elif defined(XP_MACOSX) + value: true +#elif defined(XP_LINUX) && !defined(ANDROID) + value: true +#else + value: false +#endif + mirror: always +#endif + +#ifdef MOZ_WMF +- name: media.rdd-wmf.enabled + type: RelaxedAtomicBool + value: true + mirror: always +#endif + +#ifdef MOZ_APPLEMEDIA +- name: media.rdd-applemedia.enabled + type: RelaxedAtomicBool + value: true + mirror: always +#endif + +- name: media.rdd-theora.enabled + type: RelaxedAtomicBool +#if defined(XP_WIN) + value: true +#elif defined(XP_MACOSX) + value: true +#elif defined(XP_LINUX) && !defined(ANDROID) + value: true +#else + value: false +#endif + mirror: always + +- name: media.rdd-vorbis.enabled + type: RelaxedAtomicBool +#if defined(XP_WIN) + value: true +#elif defined(XP_MACOSX) + value: true +#elif defined(XP_LINUX) && !defined(ANDROID) + value: true +#else + value: false +#endif + mirror: always + +- name: media.rdd-vpx.enabled + type: RelaxedAtomicBool +#if defined(XP_WIN) + value: true +#elif defined(XP_MACOSX) + value: true +#elif defined(XP_LINUX) && !defined(ANDROID) + value: true +#else + value: false +#endif + mirror: always + +- name: media.rdd-wav.enabled + type: RelaxedAtomicBool +#if defined(XP_WIN) + value: true +#elif defined(XP_MACOSX) + value: true +#elif defined(XP_LINUX) && !defined(ANDROID) + value: true +#else + value: false +#endif + mirror: always + +- name: media.rdd-opus.enabled + type: RelaxedAtomicBool +#if defined(XP_WIN) + value: true +#elif defined(XP_MACOSX) + value: true +#elif defined(XP_LINUX) && !defined(ANDROID) + value: true +#else + value: false +#endif + mirror: always + +- name: media.rdd-webaudio.batch.size + type: RelaxedAtomicInt32 + value: 100 + mirror: always + +#ifdef ANDROID + # Enable the MediaCodec PlatformDecoderModule by default. +- name: media.android-media-codec.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +- name: media.android-media-codec.preferred + type: RelaxedAtomicBool + value: true + mirror: always +#endif # ANDROID + +#ifdef MOZ_OMX +- name: media.omx.enabled + type: bool + value: false + mirror: always +#endif + +#ifdef MOZ_FFMPEG +- name: media.ffmpeg.enabled + type: RelaxedAtomicBool + #if defined(XP_MACOSX) + value: false + #else + value: true + #endif + mirror: always + +- name: media.libavcodec.allow-obsolete + type: bool + value: false + mirror: always + +#ifdef MOZ_WAYLAND +# Disable DMABuf for ffmpeg video textures on Linux +- name: media.ffmpeg.dmabuf-textures.disabled + type: RelaxedAtomicBool + value: false + mirror: always + +# Use VA-API for ffmpeg video playback on Linux +- name: media.ffmpeg.vaapi.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +# Use DRM display for VA-API ffmpeg video decoding on Linux +- name: media.ffmpeg.vaapi-drm-display.enabled + type: RelaxedAtomicBool + value: true + mirror: always +#endif # MOZ_WAYLAND +#endif # MOZ_FFMPEG + +- name: media.ffvpx.enabled + type: RelaxedAtomicBool +#ifdef MOZ_FFVPX + value: true +#else + value: false +#endif + mirror: always + +- name: media.ffvpx.mp3.enabled + type: RelaxedAtomicBool +#ifdef MOZ_FFVPX + value: true +#else + value: false +#endif + mirror: always + +# Set to true in marionette tests to disable the sanity test +# which would lead to unnecessary start of the RDD process. +- name: media.sanity-test.disabled + type: RelaxedAtomicBool + value: false + mirror: always + +#ifdef MOZ_WMF + +- name: media.wmf.enabled + type: RelaxedAtomicBool + value: true + mirror: always + + # Whether DD should consider WMF-disabled a WMF failure, useful for testing. +- name: media.decoder-doctor.wmf-disabled-is-failure + type: bool + value: false + mirror: always + +- name: media.wmf.dxva.d3d11.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +- name: media.wmf.dxva.max-videos + type: RelaxedAtomicUint32 + value: 8 + mirror: always + +- name: media.wmf.use-nv12-format + type: RelaxedAtomicBool + value: true + mirror: always + +- name: media.wmf.force.allow-p010-format + type: RelaxedAtomicBool + value: false + mirror: always + +- name: media.wmf.use-sync-texture + type: bool + value: true + mirror: once + +- name: media.wmf.low-latency.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +- name: media.wmf.low-latency.force-disabled + type: RelaxedAtomicBool + value: false + mirror: always + +- name: media.wmf.skip-blacklist + type: RelaxedAtomicBool + value: false + mirror: always + +- name: media.wmf.amd.highres.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +- name: media.wmf.allow-unsupported-resolutions + type: RelaxedAtomicBool + value: false + mirror: always + +- name: media.wmf.vp9.enabled + type: bool + value: true + mirror: once + +#endif # MOZ_WMF + +- name: media.hardware-video-decoding.force-enabled + type: bool + value: false + mirror: once + +# Whether to check the decoder supports recycling. +- name: media.decoder.recycle.enabled + type: RelaxedAtomicBool + value: @IS_ANDROID@ + mirror: always + +# Should MFR try to skip to the next key frame? +- name: media.decoder.skip-to-next-key-frame.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +- name: media.gmp.decoder.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +# Whether to suspend decoding of videos in background tabs. +- name: media.suspend-bkgnd-video.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# Delay, in ms, from time window goes to background to suspending +# video decoders. Defaults to 10 seconds. +- name: media.suspend-bkgnd-video.delay-ms + type: RelaxedAtomicUint32 + value: 10000 + mirror: always + +- name: media.dormant-on-pause-timeout-ms + type: RelaxedAtomicInt32 + value: 5000 + mirror: always + +# AudioTrack and VideoTrack support +- name: media.track.enabled + type: bool + value: false + mirror: always + +# This pref disables the reception of RTCP. It is used for testing. +- name: media.webrtc.net.force_disable_rtcp_reception + type: ReleaseAcquireAtomicBool + value: false + mirror: always + +# TextTrack WebVTT Region extension support. +- name: media.webvtt.regions.enabled + type: bool + value: true + mirror: always + +# This pref controls whether dispatch testing-only events. +- name: media.webvtt.testing.events + type: bool + value: true + mirror: always + +- name: media.webspeech.synth.force_global_queue + type: bool + value: false + mirror: always + +- name: media.webspeech.test.enable + type: bool + value: false + mirror: always + +- name: media.webspeech.test.fake_fsm_events + type: bool + value: false + mirror: always + +- name: media.webspeech.test.fake_recognition_service + type: bool + value: false + mirror: always + +#ifdef MOZ_WEBSPEECH +- name: media.webspeech.recognition.enable + type: bool + value: false + mirror: always +#endif + +- name: media.webspeech.recognition.force_enable + type: bool + value: false + mirror: always + +#ifdef MOZ_WEBSPEECH +- name: media.webspeech.synth.enabled + type: bool + value: false + mirror: always +#endif # MOZ_WEBSPEECH + +- name: media.encoder.webm.enabled + type: RelaxedAtomicBool +#if defined(MOZ_WEBM_ENCODER) + value: true +#else + value: false +#endif + mirror: always + +- name: media.audio-max-decode-error + type: uint32_t +#if defined(RELEASE_OR_BETA) + value: 3 +#else + # Zero tolerance in pre-release builds to detect any decoder regression. + value: 0 +#endif + mirror: always + +- name: media.video-max-decode-error + type: uint32_t +#if defined(RELEASE_OR_BETA) + value: 2 +#else + # Zero tolerance in pre-release builds to detect any decoder regression. + value: 0 +#endif + mirror: always + +# Are video stats enabled? (Disabling can help prevent fingerprinting.) +- name: media.video_stats.enabled + type: bool + value: true + mirror: always + +# Opus +- name: media.opus.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# Wave +- name: media.wave.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# Ogg +- name: media.ogg.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# WebM +- name: media.webm.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# AV1 +- name: media.av1.enabled + type: RelaxedAtomicBool +#if defined(XP_WIN) && !defined(_ARM64_) + value: true +#elif defined(XP_MACOSX) + value: true +#elif defined(MOZ_WIDGET_ANDROID) + value: @IS_EARLY_BETA_OR_EARLIER@ +#elif defined(XP_UNIX) + value: true +#else + value: false +#endif + mirror: always + +- name: media.av1.use-dav1d + type: RelaxedAtomicBool +#if defined(XP_WIN) && !defined(_ARM64_) + value: true +#elif defined(XP_MACOSX) + value: true +#elif defined(XP_UNIX) + value: true +#else + value: false +#endif + mirror: always + +- name: media.flac.enabled + type: bool + value: true + mirror: always + +# Hls +- name: media.hls.enabled + type: RelaxedAtomicBool + value: @IS_ANDROID@ + mirror: always + +# Max number of HLS players that can be created concurrently. Used only on +# Android and when "media.hls.enabled" is true. +#ifdef ANDROID +- name: media.hls.max-allocations + type: uint32_t + value: 20 + mirror: always +#endif + +- name: media.mp4.enabled + type: RelaxedAtomicBool +#ifdef MOZ_FMP4 + value: true +#else + value: false +#endif + mirror: always + +# Error/warning handling, Decoder Doctor. +# +# Set to true to force demux/decode warnings to be treated as errors. +- name: media.playback.warnings-as-errors + type: RelaxedAtomicBool + value: false + mirror: always + +# Resume video decoding when the cursor is hovering on a background tab to +# reduce the resume latency and improve the user experience. +- name: media.resume-bkgnd-video-on-tabhover + type: bool + value: true + mirror: always + +- name: media.videocontrols.lock-video-orientation + type: bool + value: @IS_ANDROID@ + mirror: always + +# Media Seamless Looping +- name: media.seamless-looping + type: RelaxedAtomicBool + value: true + mirror: always + +- name: media.autoplay.block-event.enabled + type: bool + value: false + mirror: always + +- name: media.media-capabilities.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +- name: media.media-capabilities.screen.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +- name: media.benchmark.vp9.fps + type: RelaxedAtomicUint32 + value: 0 + mirror: always + +- name: media.benchmark.vp9.threshold + type: RelaxedAtomicUint32 + value: 150 + mirror: always + +- name: media.benchmark.vp9.versioncheck + type: RelaxedAtomicUint32 + value: 0 + mirror: always + +- name: media.benchmark.frames + type: RelaxedAtomicUint32 + value: 300 + mirror: always + +- name: media.benchmark.timeout + type: RelaxedAtomicUint32 + value: 1000 + mirror: always + +- name: media.test.video-suspend + type: RelaxedAtomicBool + value: false + mirror: always + +# MediaCapture prefs follow + +# Enables navigator.mediaDevices and getUserMedia() support. See also +# media.peerconnection.enabled +- name: media.navigator.enabled + type: bool + value: true + mirror: always + +# This pref turns off [SecureContext] on the navigator.mediaDevices object, for +# more compatible legacy behavior. +- name: media.devices.insecure.enabled + type: bool + value: false + mirror: always + +# If the above pref is also enabled, this pref enabled getUserMedia() support +# in http, bypassing the instant NotAllowedError you get otherwise. +- name: media.getusermedia.insecure.enabled + type: bool + value: false + mirror: always + +# Enable tab sharing +- name: media.getusermedia.browser.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +# The getDisplayMedia method is always SecureContext regardless of the above two +# prefs. But it is not implemented on android, and can be turned off elsewhere. +- name: media.getdisplaymedia.enabled + type: bool + value: @IS_NOT_ANDROID@ + mirror: always + +# Turn off any cameras (but not mics) while in the background. This is desirable +# on mobile. +- name: media.getusermedia.camera.background.mute.enabled + type: bool + value: @IS_ANDROID@ + mirror: always + +# WebRTC prefs follow + +# Enables RTCPeerConnection support. Note that, when true, this pref enables +# navigator.mediaDevices and getUserMedia() support as well. +# See also media.navigator.enabled +- name: media.peerconnection.enabled + type: bool + value: true + mirror: always + +- name: media.peerconnection.dtmf.enabled + type: bool + value: true + mirror: always + +- name: media.peerconnection.identity.enabled + type: bool + value: true + mirror: always + +- name: media.peerconnection.rtpsourcesapi.enabled + type: bool + value: true + mirror: always + +#ifdef MOZ_WEBRTC + #ifdef ANDROID +- name: media.navigator.hardware.vp8_encode.acceleration_remote_enabled + type: bool + value: true + mirror: always + +- name: media.navigator.hardware.vp8_encode.acceleration_enabled + type: bool + value: true + mirror: never + +- name: media.navigator.hardware.vp8_decode.acceleration_enabled + type: bool + value: false + mirror: never + #endif # ANDROID + + # Use MediaDataDecoder API for VP8/VP9 in WebRTC. This includes hardware + # acceleration for decoding. +- name: media.navigator.mediadatadecoder_vpx_enabled + type: RelaxedAtomicBool +#if defined(NIGHTLY_BUILD) + value: true +#else + value: false +#endif + mirror: always + + # Use MediaDataDecoder API for H264 in WebRTC. This includes hardware + # acceleration for decoding. +- name: media.navigator.mediadatadecoder_h264_enabled + type: RelaxedAtomicBool + #if defined(_ARM64_) && defined(XP_WIN) + value: false + #else + value: true + #endif + mirror: always + +#endif # MOZ_WEBRTC + +# HTMLMediaElement.allowedToPlay should be exposed to web content when +# block autoplay rides the trains to release. Until then, Nightly only. +- name: media.allowed-to-play.enabled + type: bool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +# Is support for MediaDevices.ondevicechange enabled? +- name: media.ondevicechange.enabled + type: bool + value: true + mirror: always + +# Is support for HTMLMediaElement.seekToNextFrame enabled? +- name: media.seekToNextFrame.enabled + type: bool + value: true + mirror: always + +# setSinkId will be enabled in bug 1498512. Till then the +# implementation will remain hidden behind this pref (Bug 1152401, Bug 934425). +- name: media.setsinkid.enabled + type: bool + value: false + mirror: always + +# Turn on this pref can enable test-only events for media element. +- name: media.testing-only-events + type: bool + value: false + mirror: always + +- name: media.useAudioChannelService.testing + type: bool + value: false + mirror: always + +- name: media.audioFocus.management + type: bool +#if defined(MOZ_WIDGET_ANDROID) + value: true +#else + value: false +#endif + mirror: always + +- name: media.hardwaremediakeys.enabled + type: bool + value: true + mirror: always + +# If this pref is on, then `media.mediacontrol.stopcontrol.timer.ms` would take +# effect and determine the timing to stop controlling media. +- name: media.mediacontrol.stopcontrol.timer + type: bool + value: false + mirror: always + +# If media is being paused after a certain period, then we would think that +# media doesn't need to be controlled anymore. Therefore, that media would stop +# listening to the media control key events. The value of this pref is how long +# media would stop listening to the event after it's paused. +- name: media.mediacontrol.stopcontrol.timer.ms + type: RelaxedAtomicUint32 + value: 60000 + mirror: always + +# If this pref is on, we would stop controlling media after it reaches to the +# end. +- name: media.mediacontrol.stopcontrol.aftermediaends + type: bool + value: true + mirror: always + +# We would only use media control to control media which duration is longer +# than this value. +- name: media.mediacontrol.eligible.media.duration.s + type: AtomicFloat + value: 3.0f + mirror: always + +- name: media.webrtc.platformencoder + type: bool +#if defined(MOZ_WIDGET_ANDROID) + value: true +#else + value: false +#endif + mirror: always + +- name: media.block-autoplay-until-in-foreground + type: bool +#if !defined(MOZ_WIDGET_ANDROID) + value: true +#else + value: false +#endif + mirror: always + +- name: media.webrtc.hw.h264.enabled + type: bool +#if defined(MOZ_WIDGET_ANDROID) + value: true +#else + value: false +#endif + mirror: always + + # If true, then we require explicit approval from the embedding app (ex. Fenix) + # on GeckoView to know if we can allow audible, inaudible media or both kinds + # of media to autoplay. +- name: media.geckoview.autoplay.request + type: bool + value: false + mirror: always + + # This is used in testing only, in order to skip the prompting process. This + # pref works only when enabling the pref `media.geckoview.autoplay.request`. + # 0=prompt as normal, 1=allow all, 2=deny all, 3=allow audible request, + # 4=deny audible request, 5=allow inaudible request, 6=deny inaudible request. + # 7=leave all requests pending. +- name: media.geckoview.autoplay.request.testing + type: uint32_t + value: 0 + mirror: always + +- name: media.mediacontrol.testingevents.enabled + type: bool + value: false + mirror: always + +#if defined(XP_MACOSX) +- name: media.macos.screenrecording.oscheck.enabled + type: bool + value: true + mirror: always +#endif + +#--------------------------------------------------------------------------- +# Prefs starting with "mousewheel." +#--------------------------------------------------------------------------- + +# This affects how line scrolls from wheel events will be accelerated. +# Factor to be multiplied for constant acceleration. +- name: mousewheel.acceleration.factor + type: RelaxedAtomicInt32 + value: 10 + mirror: always + +# This affects how line scrolls from wheel events will be accelerated. +# Number of mousewheel clicks when acceleration starts. +# Acceleration can be turned off if pref is set to -1. +- name: mousewheel.acceleration.start + type: RelaxedAtomicInt32 + value: -1 + mirror: always + +# Auto-dir is a feature which treats any single-wheel scroll as a scroll in the +# only one scrollable direction if the target has only one scrollable +# direction. For example, if the user scrolls a vertical wheel inside a target +# which is horizontally scrollable but vertical unscrollable, then the vertical +# scroll is converted to a horizontal scroll for that target. +# Note that auto-dir only takes effect for |mousewheel.*.action|s and +# |mousewheel.*.action.override_x|s whose values are 1. +- name: mousewheel.autodir.enabled + type: bool + value: false + mirror: always + +# When a wheel scroll is converted due to auto-dir, which side the converted +# scroll goes towards is decided by one thing called "honoured target". If the +# content of the honoured target horizontally starts from right to left, then +# an upward scroll maps to a rightward scroll and a downward scroll maps to a +# leftward scroll; otherwise, an upward scroll maps to a leftward scroll and a +# downward scroll maps to a rightward scroll. +# If this pref is set to false, then consider the scrolling target as the +# honoured target. +# If set to true, then consider the root element in the document where the +# scrolling target is as the honoured target. But note that there's one +# exception: for targets in an HTML document, the real root element(I.e. the +# <html> element) is typically not considered as a root element, but the <body> +# element is typically considered as a root element. If there is no <body> +# element, then consider the <html> element instead. +- name: mousewheel.autodir.honourroot + type: bool + value: false + mirror: always + +- name: mousewheel.system_scroll_override_on_root_content.enabled + type: RelaxedAtomicBool +#ifdef XP_WIN + value: true +#else + value: false +#endif + mirror: always + +# Prefs for overriding the system mouse wheel scrolling speed on +# content of the web pages. When +# "mousewheel.system_scroll_override_on_root_content.enabled" is true and the +# system scrolling speed isn't customized by the user, the content scrolling +# speed is multiplied by the following factors. The value will be used as +# 1/100. E.g., 200 means 2.00. +# NOTE: Even if "mousewheel.system_scroll_override_on_root_content.enabled" is +# true, when Gecko detects the user customized the system scrolling speed +# settings, the override isn't executed. +- name: mousewheel.system_scroll_override_on_root_content.horizontal.factor + type: RelaxedAtomicInt32 + value: 200 + mirror: always +- name: mousewheel.system_scroll_override_on_root_content.vertical.factor + type: RelaxedAtomicInt32 + value: 200 + mirror: always + +# Mouse wheel scroll transaction is held even if the mouse cursor is moved. +- name: mousewheel.transaction.ignoremovedelay + type: RelaxedAtomicInt32 + value: 100 + mirror: always + +# Mouse wheel scroll transaction period of time (in milliseconds). +- name: mousewheel.transaction.timeout + type: RelaxedAtomicInt32 + value: 1500 + mirror: always + +# Mouse wheel scroll position is determined by GetMessagePos rather than +# LPARAM msg value +- name: mousewheel.ignore_cursor_position_in_lparam + type: RelaxedAtomicBool + value: false + mirror: always + +# If line-height is lower than this value (in device pixels), 1 line scroll +# scrolls this height. +- name: mousewheel.min_line_scroll_amount + type: int32_t + value: 5 + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "network." +#--------------------------------------------------------------------------- + +# Force less-secure NTLMv1 when needed (NTLMv2 is the default). +- name: network.auth.force-generic-ntlm-v1 + type: RelaxedAtomicBool + value: false + mirror: always + +# Sub-resources HTTP-authentication: +# 0 - don't allow sub-resources to open HTTP authentication credentials +# dialogs +# 1 - allow sub-resources to open HTTP authentication credentials dialogs, +# but don't allow it for cross-origin sub-resources +# 2 - allow the cross-origin authentication as well. +- name: network.auth.subresource-http-auth-allow + type: uint32_t + value: 2 + mirror: always + +# Sub-resources HTTP-authentication for cross-origin images: +# - true: It is allowed to present http auth. dialog for cross-origin images. +# - false: It is not allowed. +# If network.auth.subresource-http-auth-allow has values 0 or 1 this pref does +# not have any effect. +- name: network.auth.subresource-img-cross-origin-http-auth-allow + type: bool + value: false + mirror: always + +# Resources that are triggered by some non-web-content: +# - true: They are allow to present http auth. dialog +# - false: They are not allow to present http auth. dialog. +- name: network.auth.non-web-content-triggered-resources-http-auth-allow + type: bool + value: false + mirror: always + +# Whether to show anti-spoof confirmation prompts when navigating to a url +# with userinfo +- name: network.auth.confirmAuth.enabled + type: bool + value: true + mirror: always + +# See the full list of values in nsICookieService.idl. +- name: network.cookie.cookieBehavior + type: RelaxedAtomicInt32 + value: 0 # accept all cookies + mirror: always + +# See the full list of values in nsICookieService.idl. +- name: network.cookie.rejectForeignWithExceptions.enabled + type: bool + value: false + mirror: always + +# Stale threshold for cookies in seconds. +- name: network.cookie.staleThreshold + type: uint32_t + value: 60 + mirror: always + +# Cookie lifetime policy. Possible values: +# 0 - accept all cookies +# 1 - deprecated. don't use it. +# 2 - accept as session cookies +# 3 - deprecated. don't use it. +- name: network.cookie.lifetimePolicy + type: RelaxedAtomicInt32 + value: 0 + mirror: always + +- name: network.cookie.sameSite.laxByDefault + type: bool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +# lax-by-default 2 minutes tollerance for unsafe methods. The value is in seconds. +- name: network.cookie.sameSite.laxPlusPOST.timeout + type: uint32_t + value: 120 + mirror: always + +- name: network.cookie.sameSite.noneRequiresSecure + type: bool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +- name: network.cookie.sameSite.schemeful + type: bool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +- name: network.cookie.thirdparty.sessionOnly + type: bool + value: false + mirror: always + +- name: network.cookie.thirdparty.nonsecureSessionOnly + type: bool + value: false + mirror: always + +- name: network.data.max-uri-length-mobile + type: RelaxedAtomicUint32 + value: 2 * 1024 * 1024 + mirror: always + +# If we should attempt to race the cache and network. +- name: network.http.rcwn.enabled + type: bool + value: true + mirror: always + +- name: network.http.rcwn.cache_queue_normal_threshold + type: uint32_t + value: 8 + mirror: always + +- name: network.http.rcwn.cache_queue_priority_threshold + type: uint32_t + value: 2 + mirror: always + +# We might attempt to race the cache with the network only if a resource +# is smaller than this size. +- name: network.http.rcwn.small_resource_size_kb + type: uint32_t + value: 256 + mirror: always + +- name: network.http.rcwn.min_wait_before_racing_ms + type: uint32_t + value: 0 + mirror: always + +- name: network.http.rcwn.max_wait_before_racing_ms + type: uint32_t + value: 500 + mirror: always + +# false=real referer, true=spoof referer (use target URI as referer). +- name: network.http.referer.spoofSource + type: bool + value: false + mirror: always + +# Check whether we need to hide referrer when leaving a .onion domain. +# false=allow onion referer, true=hide onion referer (use empty referer). +- name: network.http.referer.hideOnionSource + type: bool + value: false + mirror: always + +# Include an origin header on non-GET and non-HEAD requests regardless of CORS. +# 0=never send, 1=send when same-origin only, 2=always send. +- name: network.http.sendOriginHeader + type: uint32_t + value: 2 + mirror: always + +# Prefs allowing granular control of referers. +# 0=don't send any, 1=send only on clicks, 2=send on image requests as well +- name: network.http.sendRefererHeader + type: uint32_t + value: 2 + mirror: always + do_not_use_directly: true + +# The maximum allowed length for a referrer header - 4096 default. +# 0 means no limit. +- name: network.http.referer.referrerLengthLimit + type: uint32_t + value: 4096 + mirror: always + +# 0=always send, 1=send iff base domains match, 2=send iff hosts match. +- name: network.http.referer.XOriginPolicy + type: uint32_t + value: 0 + mirror: always + do_not_use_directly: true + +# 0=full URI, 1=scheme+host+port+path, 2=scheme+host+port. +- name: network.http.referer.trimmingPolicy + type: uint32_t + value: 0 + mirror: always + do_not_use_directly: true + +# 0=full URI, 1=scheme+host+port+path, 2=scheme+host+port. +- name: network.http.referer.XOriginTrimmingPolicy + type: uint32_t + value: 0 + mirror: always + do_not_use_directly: true + +# Set the default Referrer Policy; to be used unless overriden by the site. +# 0=no-referrer, 1=same-origin, 2=strict-origin-when-cross-origin, +# 3=no-referrer-when-downgrade. +- name: network.http.referer.defaultPolicy + type: uint32_t + value: 3 + mirror: always + +# Set the default Referrer Policy applied to third-party trackers when the +# default cookie policy is set to reject third-party trackers, to be used +# unless overriden by the site. +# 0=no-referrer, 1=same-origin, 2=strict-origin-when-cross-origin, +# 3=no-referrer-when-downgrade. +# Trim referrers from trackers to origins by default. +- name: network.http.referer.defaultPolicy.trackers + type: uint32_t + value: 2 + mirror: always + +# Set the Private Browsing Default Referrer Policy, to be used +# unless overriden by the site. +# 0=no-referrer, 1=same-origin, 2=strict-origin-when-cross-origin, +# 3=no-referrer-when-downgrade. +- name: network.http.referer.defaultPolicy.pbmode + type: uint32_t + value: 2 + mirror: always + +# Set the Private Browsing Default Referrer Policy applied to third-party +# trackers when the default cookie policy is set to reject third-party +# trackers, to be used unless overriden by the site. +# 0=no-referrer, 1=same-origin, 2=strict-origin-when-cross-origin, +# 3=no-referrer-when-downgrade. +# No need to change this pref for trimming referrers from trackers since in +# private windows we already trim all referrers to origin only. +- name: network.http.referer.defaultPolicy.trackers.pbmode + type: uint32_t + value: 2 + mirror: always + +# Whether certain http header values should be censored out in logs. +# Specifically filters out "authorization" and "proxy-authorization". +- name: network.http.sanitize-headers-in-logs + type: RelaxedAtomicBool + value: true + mirror: always + +# If set to true, IOService.offline depends on IOService.connectivity. +- name: network.offline-mirrors-connectivity + type: RelaxedAtomicBool + value: false + mirror: always + +# Enables the predictive service. +- name: network.predictor.enabled + type: bool + value: true + mirror: always + +# Set true to allow resolving proxy for localhost +- name: network.proxy.allow_hijacking_localhost + type: RelaxedAtomicBool + value: false + mirror: always + +# Allow CookieJarSettings to be unblocked for channels without a document. +# This is for testing only. +- name: network.cookieJarSettings.unblocked_for_testing + type: bool + value: false + mirror: always + +- name: network.predictor.enable-hover-on-ssl + type: bool + value: false + mirror: always + +- name: network.predictor.enable-prefetch + type: bool + value: false + mirror: always + +- name: network.predictor.page-degradation.day + type: int32_t + value: 0 + mirror: always +- name: network.predictor.page-degradation.week + type: int32_t + value: 5 + mirror: always +- name: network.predictor.page-degradation.month + type: int32_t + value: 10 + mirror: always +- name: network.predictor.page-degradation.year + type: int32_t + value: 25 + mirror: always +- name: network.predictor.page-degradation.max + type: int32_t + value: 50 + mirror: always + +- name: network.predictor.subresource-degradation.day + type: int32_t + value: 1 + mirror: always +- name: network.predictor.subresource-degradation.week + type: int32_t + value: 10 + mirror: always +- name: network.predictor.subresource-degradation.month + type: int32_t + value: 25 + mirror: always +- name: network.predictor.subresource-degradation.year + type: int32_t + value: 50 + mirror: always +- name: network.predictor.subresource-degradation.max + type: int32_t + value: 100 + mirror: always + +- name: network.predictor.prefetch-rolling-load-count + type: int32_t + value: 10 + mirror: always + +- name: network.predictor.prefetch-min-confidence + type: int32_t + value: 100 + mirror: always +- name: network.predictor.preconnect-min-confidence + type: int32_t + value: 90 + mirror: always +- name: network.predictor.preresolve-min-confidence + type: int32_t + value: 60 + mirror: always + +- name: network.predictor.prefetch-force-valid-for + type: int32_t + value: 10 + mirror: always + +- name: network.predictor.max-resources-per-entry + type: int32_t + value: 100 + mirror: always + +# This is selected in concert with max-resources-per-entry to keep memory +# usage low-ish. The default of the combo of the two is ~50k. +- name: network.predictor.max-uri-length + type: uint32_t + value: 500 + mirror: always + +# A testing flag. +- name: network.predictor.doing-tests + type: bool + value: false + mirror: always + +# Enables `<link rel="preload">` tag and `Link: rel=preload` response header handling. +- name: network.preload + type: RelaxedAtomicBool + value: true + mirror: always + +# Whether to use the network process or not +# Start a separate socket process. Performing networking on the socket process +# is control by a sepparate pref +# ("network.http.network_access_on_socket_process.enabled"). +# Changing these prefs requires a restart. +- name: network.process.enabled + type: RelaxedAtomicBool + mirror: always +#if defined(ANDROID) || defined(MOZ_THUNDERBIRD) + value: false # see bug 1641427 +#else + value: @IS_EARLY_BETA_OR_EARLIER@ +#endif + +# Whether we can send OnDataAvailable to content process directly. +- name: network.send_ODA_to_content_directly + type: RelaxedAtomicBool + value: false + mirror: always + +# Perform all network access on the socket process. +# The pref requires "network.process.enabled" to be true. +# Changing these prefs requires a restart. +- name: network.http.network_access_on_socket_process.enabled + type: RelaxedAtomicBool + mirror: always + value: false + +# Telemetry of traffic categories. Whether or not to enable HttpTrafficAnalyzer. +- name: network.traffic_analyzer.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# Whether DNS resolution is limited to literals and cached entries. +- name: network.dns.disabled + type: RelaxedAtomicBool + value: false + mirror: always + +# Whether DNS resolution is limited to literals and cached entries. +- name: network.dns.skipTRR-when-parental-control-enabled + type: RelaxedAtomicBool + value: true + mirror: always + +- name: network.dns.disablePrefetchFromHTTPS + type: bool + value: true + mirror: always + +# Max time to shutdown the resolver threads +- name: network.dns.resolver_shutdown_timeout_ms + type: uint32_t + value: 2000 + mirror: always + +# When true on Windows DNS resolutions for single label domains +# (domains that don't contain a dot) will be resolved using the DnsQuery +# API instead of PR_GetAddrInfoByName +- name: network.dns.dns_query_single_label + type: RelaxedAtomicBool + value: false + mirror: always + +# The proxy type. See nsIProtocolProxyService.idl +# PROXYCONFIG_DIRECT = 0 +# PROXYCONFIG_MANUAL = 1 +# PROXYCONFIG_PAC = 2 +# PROXYCONFIG_WPAD = 4 +# PROXYCONFIG_SYSTEM = 5 +- name: network.proxy.type + type: RelaxedAtomicUint32 + value: 5 + mirror: always + +# Whether the SOCKS proxy should be in charge of DNS resolution. +- name: network.proxy.socks_remote_dns + type: RelaxedAtomicBool + value: false + mirror: always + +# Some requests during a page load are marked as "tail", mainly trackers, but not only. +# This pref controls whether such requests are put to the tail, behind other requests +# emerging during page loading process. +- name: network.http.tailing.enabled + type: bool + value: true + mirror: always + +# Whether to run proxy checks when processing Alt-Svc headers. +- name: network.http.altsvc.proxy_checks + type: bool + value: true + mirror: always + +- name: network.http.stale_while_revalidate.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# Whether to cache SSL resumption tokens in necko. +- name: network.ssl_tokens_cache_enabled + type: RelaxedAtomicBool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +# Capacity of the above cache, in kilobytes. +- name: network.ssl_tokens_cache_capacity + type: RelaxedAtomicUint32 + value: 2048 + mirror: always + +# The maximum allowed length for a URL - 1MB default. +- name: network.standard-url.max-length + type: RelaxedAtomicUint32 + value: 1048576 + mirror: always + +# Single TRR request timeout, in milliseconds +- name: network.trr.request_timeout_ms + type: RelaxedAtomicUint32 + value: 1500 + mirror: always + +# Single TRR request timeout, in milliseconds for mode 3 +- name: network.trr.request_timeout_mode_trronly_ms + type: RelaxedAtomicUint32 + value: 30000 + mirror: always + +# Whether to send the Accept-Language header for TRR requests +- name: network.trr.send_accept-language_headers + type: RelaxedAtomicBool + value: false + mirror: always + +# Whether to send an empty Accept-Encoding header for TRR requests +- name: network.trr.send_empty_accept-encoding_headers + type: RelaxedAtomicBool + value: true + mirror: always + +# Whether to send the User-Agent header for TRR requests +- name: network.trr.send_user-agent_headers + type: RelaxedAtomicBool + value: false + mirror: always + +# This pref controls whether to use TRRServiceChannel off main thread. +- name: network.trr.fetch_off_main_thread + type: RelaxedAtomicBool + value: true + mirror: always + +# If this pref is false, a task will be dispatched to remove the file from the +# disk and the pref will be set to true. +# It can probably be removed after a few releases. +- name: network.trr.blocklist_cleanup_done + type: RelaxedAtomicBool + value: false + mirror: always + +# If we should wait for captive portal confirmation before enabling TRR +- name: network.trr.wait-for-portal + type: RelaxedAtomicBool + value: false + mirror: always + +# Use GET (rather than POST) +- name: network.trr.useGET + type: RelaxedAtomicBool + value: false + mirror: always + +# Allow RFC1918 address in responses? +- name: network.trr.allow-rfc1918 + type: RelaxedAtomicBool + value: false + mirror: always + +# Allow AAAA entries to be used "early", before the A results are in +- name: network.trr.early-AAAA + type: RelaxedAtomicBool + value: false + mirror: always + +# When true, it only sends AAAA when the system has IPv6 connectivity +- name: network.trr.skip-AAAA-when-not-supported + type: RelaxedAtomicBool + value: true + mirror: always + +# Whether to apply split horizon mitigations when using TRR. +# These include adding the DNS suffix to the excluded domains +- name: network.trr.split_horizon_mitigations + type: RelaxedAtomicBool + value: true + mirror: always + +# When true, the DNS request will wait for both A and AAAA responses +# (if both have been requested) before notifying the listeners. +# When true, it effectively cancels `network.trr.early-AAAA` +- name: network.trr.wait-for-A-and-AAAA + type: RelaxedAtomicBool + value: true + mirror: always + +# Explicitly disable ECS (EDNS Client Subnet, RFC 7871) +- name: network.trr.disable-ECS + type: RelaxedAtomicBool + value: true + mirror: always + +# When true, the DNS+TRR cache will be cleared when a relevant TRR pref +# changes. (uri, bootstrapAddress, excluded-domains) +- name: network.trr.clear-cache-on-pref-change + type: RelaxedAtomicBool + value: true + mirror: always + +# After this many failed TRR requests in a row, consider TRR borked +- name: network.trr.max-fails + type: RelaxedAtomicUint32 + value: 15 + mirror: always + +# When the TRR confirmation is set to CONFIRM_FAILED due to many failures in +# a row, we set a timer to retry. This has an exponential backoff up to +# 64 seconds. +- name: network.trr.retry-timeout-ms + type: RelaxedAtomicUint32 + value: 125 + mirror: always + +# Retry with no TRR when the response contained only 0.0.0.0 or :: +- name: network.trr.fallback-on-zero-response + type: RelaxedAtomicBool + value: false + mirror: always + +# If true we parse the /etc/hosts file and exclude any host names from TRR. +# Reading the file is only done once, when TRR is first enabled - this could be +# soon after startup or when the pref is flipped. +- name: network.trr.exclude-etc-hosts + type: RelaxedAtomicBool + value: true + mirror: always + +# Allow the network changed event to get sent when a network topology or setup +# change is noticed while running. +- name: network.notify.changed + type: RelaxedAtomicBool + value: true + mirror: always + +# Allow network detection of IPv6 related changes (bug 1245059) +- name: network.notify.IPv6 + type: RelaxedAtomicBool +# ifdef XP_WIN + value: false +# else + value: true +# endif + mirror: always + +# Whether to check the dnsSuffix on network changes +- name: network.notify.dnsSuffixList + type: RelaxedAtomicBool + value: true + mirror: always + +# Whether to check the registry for proxies on network changes that indicate +# that TRR should not be used. +- name: network.notify.checkForProxies + type: RelaxedAtomicBool + value: true + mirror: always + +# Whether to check the registry for NRPT rules on network changes that +# indicate that TRR should not be used. +- name: network.notify.checkForNRPT + type: RelaxedAtomicBool + value: true + mirror: always + +# Whether NotifyIpInterfaceChange should be called immediately after +# registration in order to record the initial state of the network adapters. +- name: network.notify.initial_call + type: RelaxedAtomicBool + value: true + mirror: always + +# Whether to use the rust implemented DefaultURI for unknown scheme types +- name: network.url.useDefaultURI + type: RelaxedAtomicBool + value: false + mirror: always + +# Force remapping of remote port numbers to allow reaching local testing +# servers or port forwarders listening on non-standard ports. Note that +# this is not changing the origin URL in the addressbar, only internally +# the port number used. This is intended to be used along with the +# `network.dns.forceResolve` preference. +# +# The form is: +# "80,443,808-888=8080; 563=8081" +# this will remap ports for HTTP, HTTPS and the range of 808-888 included +# to use port 8080, and port 563 to go to 8081. +- name: network.socket.forcePort + type: String + value: "" + mirror: never + +# Receive buffer size of QUIC socket +- name: network.http.http3.recvBufferSize + type: RelaxedAtomicInt32 + value: 1048576 + mirror: always + +- name: network.http.http3.enable_qlog + type: RelaxedAtomicBool + value: false + mirror: always + +# When a h3 transaction is inserted in the pending queue, the time (ms) we wait +# to create a TCP backup connection. +- name: network.http.http3.backup_timer_delay + type: RelaxedAtomicUint32 + value: 100 + mirror: always + +# When true, a http request will be upgraded to https when HTTPS RR is +# available. +- name: network.dns.upgrade_with_https_rr + type: RelaxedAtomicBool + value: false + mirror: always + +# Whether to use HTTPS RR as AltSvc +- name: network.dns.use_https_rr_as_altsvc + type: RelaxedAtomicBool + value: false + mirror: always + +# Whether to check for NAT64 using the system resolver +- name: network.connectivity-service.nat64-check + type: bool + value: true + mirror: always + +# Manually enter the NAT64 prefix that will be used if IPv4 is unavailable. +# The value is formatted as IPv6 with the least significant bits to be dropped. +# For example, 64:ff9b:: is a common prefix. This will not disable +# the NAT64 check, although the value of this pref will be prioritized. +- name: network.connectivity-service.nat64-prefix + type: String + value: "" + mirror: never + +# Whether to enable echconfig. +- name: network.dns.echconfig.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +# This pref needs to be worked together with network.dns.echconfig.enabled +# being true and there is no record without ECHConfig. +# When we try all records with ECHConfig in HTTPS RRs and still can't connect, +# this pref indicate whether we can fallback to the origin server. +- name: network.dns.echconfig.fallback_to_origin_when_all_failed + type: RelaxedAtomicBool + value: true + mirror: always + +# When true, reset the exclusion list when all records are excluded. +- name: network.dns.httpssvc.reset_exclustion_list + type: RelaxedAtomicBool + value: true + mirror: always + +# If the http3 connection cannot be ready after the timeout value here, the +# transaction will start another non-http3 conneciton. +# Setting this value to 0 indicates this feature is disabled. +- name: network.dns.httpssvc.http3_fast_fallback_timeout + type: RelaxedAtomicUint32 + value: 50 + mirror: always + +# Whether to use https rr for speculative connections. +- name: network.dns.use_https_rr_for_speculative_connection + type: RelaxedAtomicBool + value: false + mirror: always + +- name: network.cache.frecency_array_check_enabled + type: RelaxedAtomicBool + value: @IS_EARLY_BETA_OR_EARLIER@ + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "nglayout." +#--------------------------------------------------------------------------- + +# Enable/disable display list invalidation logging --- useful for debugging. +- name: nglayout.debug.invalidation + type: bool + value: false + mirror: always + +# Enable/disable widget update area flashing --- only supported with +# BasicLayers (other layer managers always update the entire widget area). +- name: nglayout.debug.widget_update_flashing + type: RelaxedAtomicBool + value: false + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "page_load." +#--------------------------------------------------------------------------- + +# Time in milliseconds during which certain tasks are deprioritized during +# page load. +- name: page_load.deprioritization_period + type: RelaxedAtomicUint32 + value: 5000 + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "permissions." +#--------------------------------------------------------------------------- + +# 1-Accept, 2-Deny, Any other value: Accept +- name: permissions.default.image + type: RelaxedAtomicUint32 + value: 1 + mirror: always + +- name: permissions.delegation.enabled + type: bool + value: true + mirror: always + +- name: permissions.isolateBy.userContext + type: RelaxedAtomicBool + value: false + mirror: always + +- name: permissions.isolateBy.privateBrowsing + type: RelaxedAtomicBool + value: @IS_EARLY_BETA_OR_EARLIER@ + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "plain_text." +#--------------------------------------------------------------------------- + +# When false, text in plaintext documents does not wrap long lines. +- name: plain_text.wrap_long_lines + type: bool + value: true + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "plugin." +#--------------------------------------------------------------------------- + +# Whether sending WM_MOUSEWHEEL and WM_MOUSEHWHEEL to plugins on Windows. +- name: plugin.mousewheel.enabled + type: bool + value: true + mirror: always + +- name: plugin.state.flash + type: uint32_t + # Flash is Click-to-Activate by default on all channels. Disabled for ARM builds. +#if defined(_ARM64_) && defined(XP_WIN) + value: 0 +#else + value: 1 +#endif + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "plugins." +#--------------------------------------------------------------------------- + +- name: plugins.flashBlock.enabled + type: bool + value: false + mirror: always + +- name: plugins.http_https_only + type: bool + value: true + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "preferences." +#--------------------------------------------------------------------------- + +- name: preferences.allow.omt-write + type: bool + value: true + mirror: never + +#ifdef DEBUG + # If set to true, setting a Preference matched to a `Once` StaticPref will + # assert that the value matches. Such assertion being broken is a clear flag + # that the Once policy shouldn't be used. +- name: preferences.check.once.policy + type: bool + value: false + mirror: always + + # If set to true, StaticPrefs Once policy check will be skipped during + # automation regression test. Use with care. This pref must be set back to + # false as soon as specific test has completed. +- name: preferences.force-disable.check.once.policy + type: bool + value: false + mirror: always +#endif + +#--------------------------------------------------------------------------- +# Prefs starting with "print." +#--------------------------------------------------------------------------- + +# Variation fonts can't always be embedded in certain output formats +# such as PDF. To work around this, draw the variation fonts using +# paths instead of using font embedding. +- name: print.font-variations-as-paths + type: RelaxedAtomicBool + value: true + mirror: always + +# Whether we always print silently (without a print dialog). +- name: print.always_print_silent + type: RelaxedAtomicBool + value: false + mirror: always + +# Whether tab_modal print UI is enabled. +# +# The tab modal print dialog is currently only for early beta or nightly. +- name: print.tab_modal.enabled + type: RelaxedAtomicBool + value: @IS_EARLY_BETA_OR_EARLIER@ + mirror: always + +# Whether the pages per sheet print setting is enabled. +- name: print.pages_per_sheet.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +# Whether we allow the print progress dialog to show up. +- name: print.show_print_progress + type: RelaxedAtomicBool + value: true + mirror: always + +# The default DPI for printing. +# +# For PDF-based output, DPI should ideally be irrelevant, but in fact it is not +# for multiple reasons: +# +# * Layout code that tries to respect device pixels (e.g. for snapping glyph +# positions and baselines, and especially for the "GDI Classic" +# rendering-mode threshold for certain fonts). +# +# * The limitations of the PDF format mean that we can't natively represent +# certain effects, such as filters, in PDF output, so we need to rasterize +# the parts of the document with these applied. +# +# * Other rasterized things like images and such are also affected by DPI +# (both in the output, and the images we select via srcset, for example). +# +# Therefore, using a high DPI is preferable. For now, we use 144dpi to match +# physical printer output on Windows, but higher (e.g. 300dpi) might be better +# if it does not lead to issues such as excessive memory use. +- name: print.default_dpi + type: float + value: 144.0f + mirror: always + +# Whether support for monochrome printing is enabled for CUPS. +- name: print.cups.monochrome.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "privacy." +#--------------------------------------------------------------------------- + +- name: privacy.file_unique_origin + type: bool + value: true + mirror: always + +- name: privacy.fuzzyfox.clockgrainus + type: RelaxedAtomicUint32 + value: 100 + mirror: always + +# Annotate trackers using the strict list. If set to false, the basic list will +# be used instead. +- name: privacy.annotate_channels.strict_list.enabled + type: bool + value: @IS_EARLY_BETA_OR_EARLIER@ + mirror: always + +# First Party Isolation (double keying), disabled by default. +- name: privacy.firstparty.isolate + type: RelaxedAtomicBool + value: false + mirror: always + +# If false, two windows in the same domain with different first party domains +# (top level URLs) can access resources through window.opener. This pref is +# effective only when "privacy.firstparty.isolate" is true. +- name: privacy.firstparty.isolate.restrict_opener_access + type: RelaxedAtomicBool + value: true + mirror: always + +- name: privacy.firstparty.isolate.block_post_message + type: RelaxedAtomicBool + value: false + mirror: always + +- name: privacy.firstparty.isolate.use_site + type: RelaxedAtomicBool + value: false + mirror: always + +# Enforce tracking protection in all modes. +- name: privacy.trackingprotection.enabled + type: bool + value: false + mirror: always + +# Enforce tracking protection in Private Browsing mode. +- name: privacy.trackingprotection.pbmode.enabled + type: bool + value: true + mirror: always + +# Annotate channels based on the tracking protection list in all modes +- name: privacy.trackingprotection.annotate_channels + type: bool + value: true + mirror: always + +# Block 3rd party fingerprinting resources. +- name: privacy.trackingprotection.fingerprinting.enabled + type: bool + value: false + mirror: always + +# Block 3rd party cryptomining resources. +- name: privacy.trackingprotection.cryptomining.enabled + type: bool + value: false + mirror: always + +# Block 3rd party socialtracking resources. +- name: privacy.trackingprotection.socialtracking.enabled + type: bool + value: false + mirror: always + +# Consider socialtracking annotation as trackers (see ETP). +- name: privacy.socialtracking.block_cookies.enabled + type: bool + value: true + mirror: always + +# Whether Origin Telemetry should be enabled. +# NOTE: if telemetry.origin_telemetry_test_mode.enabled is enabled, this pref +# won't have any effect. +- name: privacy.trackingprotection.origin_telemetry.enabled + type: RelaxedAtomicBool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +- name: privacy.trackingprotection.testing.report_blocked_node + type: RelaxedAtomicBool + value: false + mirror: always + +# Whether to spoof user locale to English (used as part of Resist +# Fingerprinting). +# 0 - will prompt +# 1 - don't spoof +# 2 - spoof +- name: privacy.spoof_english + type: RelaxedAtomicUint32 + value: 0 + mirror: always + +# Send "do not track" HTTP header, disabled by default. +- name: privacy.donottrackheader.enabled + type: bool + value: false + mirror: always + +# Lower the priority of network loads for resources on the tracking protection +# list. Note that this requires the +# privacy.trackingprotection.annotate_channels pref to be on in order to have +# any effect. +- name: privacy.trackingprotection.lower_network_priority + type: bool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +# A subset of Resist Fingerprinting protections focused specifically on timers. +# This affects the Animation API, the performance APIs, Date.getTime, +# Event.timestamp, File.lastModified, audioContext.currentTime, +# canvas.captureStream.currentTime. +- name: privacy.reduceTimerPrecision + type: RelaxedAtomicBool + value: true + mirror: always + +# If privacy.reduceTimerPrecision is false, this pref controls whether or not +# to clamp all timers at a fixed 20 microsconds. It should always be enabled, +# and is only specified as a pref to enable an emergency disabling in the event +# of catastrophic failure. +- name: privacy.reduceTimerPrecision.unconditional + type: RelaxedAtomicBool + value: true + mirror: always + +# The resistFingerprinting variables are marked with 'Relaxed' memory ordering. +# We don't particurally care that threads have a percently consistent view of +# the values of these prefs. They are not expected to change often, and having +# an outdated view is not particurally harmful. They will eventually become +# consistent. +# +# The variables will, however, be read often (specifically .microseconds on +# each timer rounding) so performance is important. + +- name: privacy.resistFingerprinting + type: RelaxedAtomicBool + value: false + mirror: always + +# We automatically decline canvas permission requests if they are not initiated +# from user input. Just in case that breaks something, we allow the user to +# revert this behavior with this obscure pref. We do not intend to support this +# long term. If you do set it, to work around some broken website, please file +# a bug with information so we can understand why it is needed. +- name: privacy.resistFingerprinting.autoDeclineNoUserInputCanvasPrompts + type: bool + value: true + mirror: always + +# Whether canvas extraction should result in random data. If false, canvas +# extraction results in all-white, opaque pixel data. +- name: privacy.resistFingerprinting.randomDataOnCanvasExtract + type: RelaxedAtomicBool + value: true + mirror: always + +# The log level for browser console messages logged in RFPHelper.jsm. Change to +# 'All' and restart to see the messages. +- name: privacy.resistFingerprinting.jsmloglevel + type: String + value: "Warn" + mirror: never + +# Enable jittering the clock one precision value forward. +- name: privacy.resistFingerprinting.reduceTimerPrecision.jitter + type: RelaxedAtomicBool + value: true + mirror: always + +# Dynamically tune the resolution of the timer reduction for +# `privacy.reduceTimerPrecision` and `privacy.resistFingerprinting`. +- name: privacy.resistFingerprinting.reduceTimerPrecision.microseconds + type: RelaxedAtomicUint32 + value: 1000 + mirror: always + +- name: privacy.resistFingerprinting.target_video_res + type: uint32_t + value: 480 + mirror: always + +# Anti-tracking permission expiration. +- name: privacy.restrict3rdpartystorage.expiration + type: uint32_t + value: 2592000 # 30 days (in seconds) + mirror: always + +# Report Anti-tracking warnings to console lazily +- name: privacy.restrict3rdpartystorage.console.lazy + type: bool + value: true + mirror: always + +# Enable the heuristic to allow storage access for windows opened using window.open() after user interaction +- name: privacy.restrict3rdpartystorage.heuristic.opened_window_after_interaction + type: bool + value: true + mirror: always + +# Enable the heuristic to allow storage access for windows opened using window.open() +- name: privacy.restrict3rdpartystorage.heuristic.window_open + type: bool + value: true + mirror: always + +# Enable the heuristic to allow storage access for windows opened using window.open() +- name: privacy.restrict3rdpartystorage.heuristic.redirect + type: bool + value: true + mirror: always + +# Anti-tracking permission expiration. +- name: privacy.restrict3rdpartystorage.expiration_redirect + type: uint32_t + value: 900 # 15 minutes + mirror: always + +# Anti-tracking user-interaction expiration. +- name: privacy.userInteraction.expiration + type: uint32_t + value: 3888000 # 45 days (in seconds) + mirror: always + +# Anti-tracking user-interaction document interval. +- name: privacy.userInteraction.document.interval + type: uint32_t + value: 1800 # 30 minutes (in seconds) + mirror: always + +# Enable Anti-tracking testing. When it enables, it will notify the observers +# when user-interaction permission or storage access permission is added. This +# is for testing only. +- name: privacy.antitracking.testing + type: bool + value: false + mirror: always + +# Enable the heuristic to allow storage access for recent visited pages +- name: privacy.restrict3rdpartystorage.heuristic.recently_visited + type: bool + value: true + mirror: always + +# Valid time gap since last visit +- name: privacy.restrict3rdpartystorage.heuristic.recently_visited_time + type: uint32_t + value: 600 # 10 minutes + mirror: always + +# Recent visited pages redirection permission expiration. +- name: privacy.restrict3rdpartystorage.expiration_visited + type: uint32_t + value: 2592000 # 30 days (in seconds) + mirror: always + +# Maximum client-side cookie life-time cap. Measured in seconds, set to 0 to +# disable. +- name: privacy.documentCookies.maxage + type: uint32_t + value: 0 + mirror: always + +- name: privacy.storagePrincipal.enabledForTrackers + type: RelaxedAtomicBool + value: false + mirror: always + +- name: privacy.window.maxInnerWidth + type: int32_t + value: 1000 + mirror: always + +- name: privacy.window.maxInnerHeight + type: int32_t + value: 1000 + mirror: always + +- name: privacy.sanitize.sanitizeOnShutdown + type: RelaxedAtomicBool + value: false + mirror: always + +- name: privacy.clearOnShutdown.cache + type: RelaxedAtomicBool + value: false + mirror: always + +- name: privacy.dynamic_firstparty.limitForeign + type: RelaxedAtomicBool + value: false + mirror: always + +- name: privacy.dynamic_firstparty.use_site + type: RelaxedAtomicBool + value: true + mirror: always + +- name: privacy.partition.network_state + type: RelaxedAtomicBool + value: true + mirror: always + +- name: privacy.partition.bloburl_per_agent_cluster + type: RelaxedAtomicBool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +- name: privacy.window.name.update.enabled + type: bool + value: true + mirror: always + +# By default, the network state isolation is not active when there is a proxy +# setting. This pref forces the network isolation even in these scenarios. +- name: privacy.partition.network_state.connection_with_proxy + type: bool + value: false + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "prompts." +#--------------------------------------------------------------------------- + +# Prompt modal type prefs +# See nsIPromptService::MODAL_TYPE fields for possible values. + +# Insecure form submit warning. +- name: prompts.modalType.insecureFormSubmit + type: int32_t + value: 2 + mirror: always + +# nsHttpChannelAuthProvider#ConfirmAuth anti-phishing prompts. +- name: prompts.modalType.confirmAuth + type: int32_t + value: 2 + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "security." +#--------------------------------------------------------------------------- + +# Mochitests that need to load resource:// URIs not declared content-accessible +# in manifests should set this pref. +- name: security.all_resource_uri_content_accessible + type: bool + value: false + mirror: always + +- name: security.bad_cert_domain_error.url_fix_enabled + type: bool + value: true + mirror: always + +- name: security.csp.enable + type: bool + value: true + mirror: always + +- name: security.csp.reporting.script-sample.max-length + type: int32_t + value: 40 + mirror: always + +- name: security.csp.truncate_blocked_uri_for_frame_navigations + type: bool + value: true + mirror: always + +# Allows loading ui resources in CheckLoadURIFlags +# TODO Bug 1654488: Remove pref in CheckLoadURIFlags +# which allows all UI resources to load +- name: security.caps.allow_uri_is_ui_resource_in_checkloaduriflags + type: bool + value: false + mirror: always + +# If true, all toplevel data: URI navigations will be blocked. +# Please note that manually entering a data: URI in the +# URL-Bar will not be blocked when flipping this pref. +- name: security.data_uri.block_toplevel_data_uri_navigations + type: bool + value: true + mirror: always + +# Whether window A is allowed to navigate cross-origin window B (that is not +# a descendant frame of A) to a URI that loads externally. +- name: security.allow_disjointed_external_uri_loads + type: bool + value: false + mirror: always + +# Allowed by default so it doesn't affect Thunderbird/SeaMonkey, but +# not allowed for Firefox Desktop in firefox.js +- name: security.allow_parent_unrestricted_js_loads + type: RelaxedAtomicBool + value: true + mirror: always + +# Allowed by default so it doesn't affect Thunderbird/SeaMonkey, but +# not allowed for Firefox Desktop in firefox.js +- name: security.allow_eval_with_system_principal + type: RelaxedAtomicBool + value: true + mirror: always + +# Allowed by default so it doesn't affect Thunderbird/SeaMonkey, but +# not allowed for Firefox Desktop in firefox.js +- name: security.allow_eval_in_parent_process + type: RelaxedAtomicBool + value: true + mirror: always + +# Disallowed by default, ensure not disallowed content is loaded in the parent +# process. +- name: security.allow_unsafe_parent_loads + type: bool + value: false + mirror: always + +# Pref to block mixed scripts (fonts, plugin content, scripts, stylesheets, +# iframes, websockets, XHR). +- name: security.mixed_content.block_active_content + type: bool + value: @IS_ANDROID@ + mirror: always + +# Pref to block sub requests that happen within an object. +- name: security.mixed_content.block_object_subrequest + type: bool + value: false + mirror: always + +# Pref for mixed display content blocking (images, audio, video). +- name: security.mixed_content.block_display_content + type: bool + value: false + mirror: always + +# Pref for mixed display content upgrading (images, audio, video). +- name: security.mixed_content.upgrade_display_content + type: bool + value: @IS_NIGHTLY_BUILD@ + mirror: always + +# Whether strict file origin policy is in effect. "False" is traditional. +- name: security.fileuri.strict_origin_policy + type: RelaxedAtomicBool + value: true + mirror: always + + +# The level to which we sandbox the content process. firefox.js sets the +# default to different values on a per-OS basis, and has documentation +# on what the defaults are and what the numbers mean. +- name: security.sandbox.content.level + type: int32_t + value: 0 + mirror: always + do_not_use_directly: true # Consumers should use SandboxSettings to ask. + +- name: security.sandbox.socket.process.level + type: int32_t + value: 0 + mirror: always + do_not_use_directly: true # Consumers should use SandboxSettings to ask. + +#if defined(XP_WIN) && defined(MOZ_SANDBOX) + # Whether win32k is disabled for content processes. + # true means win32k system calls are not permitted. +- name: security.sandbox.content.win32k-disable + type: RelaxedAtomicBool + value: false + mirror: always + + # Note: win32k is currently _not_ disabled for GMP due to intermittent test + # failures, where the GMP process fails very early. See bug 1449348. +- name: security.sandbox.gmp.win32k-disable + type: RelaxedAtomicBool + value: false + mirror: always + + # Whether win32k is disabled for socket processes. + # true means win32k system calls are not permitted. +- name: security.sandbox.socket.win32k-disable + type: RelaxedAtomicBool + value: true + mirror: always + + # This controls the depth of stack trace that is logged when Windows sandbox + # logging is turned on. This is only currently available for the content + # process because the only other sandbox (for GMP) has too strict a policy to + # allow stack tracing. This does not require a restart to take effect. +- name: security.sandbox.windows.log.stackTraceDepth + type: RelaxedAtomicUint32 + value: 0 + mirror: always +#endif + +#if defined(XP_LINUX) && defined(MOZ_SANDBOX) + # Run content processes in headless mode and disallow connections to + # the X server. Experimental; breaks WebGL and Flash, and requires + # `widget.disable-native-theme-for-content` and `widget.remote-look-and-feel`. + # Changing it requires a restart because sandbox policy information dependent + # on it is cached. See bug 1640345 for details. +- name: security.sandbox.content.headless + type: bool + value: false + mirror: once +#endif + +# Pref to show warning when submitting from secure to insecure. +- name: security.warn_submit_secure_to_insecure + type: bool + value: true + mirror: always + +# Hardware Origin-bound Second Factor Support +- name: security.webauth.webauthn + type: bool + value: true + mirror: always + +# Navigate-to CSP 3 directive +- name: security.csp.enableNavigateTo + type: bool + value: false + mirror: always + +# No way to enable on Android, Bug 1552602 +- name: security.webauth.u2f + type: bool + value: @IS_NOT_ANDROID@ + mirror: always + +# Block Worker/SharedWorker scripts with wrong MIME type. +- name: security.block_Worker_with_wrong_mime + type: bool + value: true + mirror: always + +# Cancel outgoing requests from SystemPrincipal +- name: security.cancel_non_local_loads_triggered_by_systemprincipal + type: bool + value: false + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "slider." +#--------------------------------------------------------------------------- + +# Scrollbar snapping region. +# - 0: off +# - 1 and higher: slider thickness multiple +- name: slider.snapMultiplier + type: int32_t +#ifdef XP_WIN + value: 6 +#else + value: 0 +#endif + mirror: once + +#--------------------------------------------------------------------------- +# Prefs starting with "storage." +#--------------------------------------------------------------------------- + +# Whether to use a non-exclusive VFS. +# By default we use the unix-excl VFS, for the following reasons: +# 1. It improves compatibility with NFS shares, whose implementation +# is incompatible with SQLite's locking requirements (reliable fcntl), and +# in particular with WAL journaling. +# Bug 433129 attempted to automatically identify such file-systems, +# but a reliable way was not found and the fallback locking is slower than +# POSIX locking, so we do not want to do it by default. +# 2. It allows wal mode to avoid the memory mapped -shm file, reducing the +# likelihood of SIGBUS failures when disk space is exhausted. +# 3. It provides some protection from third party database tampering while a +# connection is open. +# Note there's no win32-excl VFS, so this has no effect on Windows. +- name: storage.sqlite.exclusiveLock.enabled + type: RelaxedAtomicBool + value: @IS_NOT_ANDROID@ + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "svg." +#--------------------------------------------------------------------------- + +# This pref controls whether the 'context-fill' and 'context-stroke' keywords +# can be used in SVG-as-an-image in the content processes to use the fill/ +# stroke specified on the element that embeds the image. (These keywords are +# always enabled in the chrome process, regardless of this pref.) Also, these +# keywords are currently not part of any spec, which is partly why we disable +# them for web content. +- name: svg.context-properties.content.enabled + type: bool + value: false + mirror: always + +# Enable the use of display-lists for SVG hit-testing. +- name: svg.display-lists.hit-testing.enabled + type: bool + value: true + mirror: always + +# Enable the use of display-lists for SVG painting. +- name: svg.display-lists.painting.enabled + type: bool + value: true + mirror: always + +# Is support for the new getBBox method from SVG 2 enabled? +# See https://svgwg.org/svg2-draft/single-page.html#types-SVGBoundingBoxOptions +- name: svg.new-getBBox.enabled + type: bool + value: false + mirror: always + +# Is support for letter-spacing and word-spacing in SVG text enabled? +- name: svg.text-spacing.enabled + type: bool + value: true + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "telemetry." +#--------------------------------------------------------------------------- + +# Enable origin telemetry test mode or not +# NOTE: turning this on will override the +# privacy.trackingprotection.origin_telemetry.enabled pref. +- name: telemetry.origin_telemetry_test_mode.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +- name: telemetry.number_of_site_origin.min_interval + type: uint32_t + value: 300000 + mirror: always + +- name: telemetry.fog.test.localhost_port + type: RelaxedAtomicInt32 + value: 0 + mirror: always + rust: true + +#--------------------------------------------------------------------------- +# Prefs starting with "test." +#--------------------------------------------------------------------------- + +- name: test.events.async.enabled + type: RelaxedAtomicBool + value: false + mirror: always + +- name: test.mousescroll + type: RelaxedAtomicBool + value: false + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "thread." +#--------------------------------------------------------------------------- + +- name: threads.medium_high_event_queue.enabled + type: RelaxedAtomicBool + value: true + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "toolkit." +#--------------------------------------------------------------------------- + +# Returns true if BHR is disabled. +- name: toolkit.content-background-hang-monitor.disabled + type: bool + value: false + mirror: always + +- name: toolkit.scrollbox.horizontalScrollDistance + type: RelaxedAtomicInt32 + value: 5 + mirror: always + +- name: toolkit.scrollbox.verticalScrollDistance + type: RelaxedAtomicInt32 + value: 3 + mirror: always + +# The lateWriteChecksStage and fastShutdownStage below represent the stage +# of shutdown after which we (for lateWriteChecksStage) crash / gather +# telemetry data on file writes, or (for fastShutdownStage) we call _exit(0). +# Higher values are earlier during shutdown, and the full enumeration can +# be found in AppShutdown.h in the AppShutdownPhase enum. +- name: toolkit.shutdown.lateWriteChecksStage + type: int32_t +#ifdef MOZ_CODE_COVERAGE + value: 0 +#else + value: 3 +#endif + mirror: always + +# See the comment above toolkit.shutdown.lateWriteChecksStage. A higher value +# for this pref means we call _exit(0) earlier during shutdown. +- name: toolkit.shutdown.fastShutdownStage + type: int32_t +#if !defined(DEBUG) && !defined(MOZ_ASAN) && !defined(MOZ_TSAN) && !defined(MOZ_CODE_COVERAGE) && !defined(MOZ_VALGRIND) && !defined(MOZ_PROFILE_GENERATE) + #ifdef NIGHTLY_BUILD + value: 3 + #else + value: 1 + #endif +#else + value: 0 +#endif + mirror: always + +# Sending each remote accumulation immediately places undue strain on the IPC +# subsystem. Batch the remote accumulations for a period of time before sending +# them all at once. This value was chosen as a balance between data timeliness +# and performance (see bug 1218576). +- name: toolkit.telemetry.ipcBatchTimeout + type: uint32_t + value: 2000 + mirror: always + +- name: toolkit.telemetry.geckoview.batchDurationMS + type: RelaxedAtomicUint32 + value: 5000 + mirror: always + +- name: toolkit.telemetry.geckoview.maxBatchStalenessMS + type: RelaxedAtomicUint32 + value: 60000 + mirror: always + +- name: toolkit.telemetry.geckoview.streaming + type: RelaxedAtomicBool + value: false + mirror: always + +- name: toolkit.telemetry.testing.overrideProductsCheck + type: RelaxedAtomicBool + value: false + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "ui." +#--------------------------------------------------------------------------- + +- name: ui.key.generalAccessKey + type: int32_t + value: -1 + mirror: always + +# Only used if generalAccessKey is -1. +- name: ui.key.chromeAccess + type: int32_t +#ifdef XP_MACOSX + # 0 = disabled, 1 = Shift, 2 = Ctrl, 4 = Alt, 3 = ctrl+shift, 8 = Meta + value: 2 +#else + # 0 = disabled, 1 = Shift, 2 = Ctrl, 4 = Alt, 5 = Alt+Shift, + # 8 = Meta, 16 = Win + value: 4 +#endif + mirror: always + +# Only used if generalAccessKey is -1. +- name: ui.key.contentAccess + type: int32_t +#ifdef XP_MACOSX + # 0 = disabled, 1 = Shift, 2 = Ctrl, 4 = Alt, 3 = ctrl+shift, 8 = Meta + value: 6 +#else + # 0 = disabled, 1 = Shift, 2 = Ctrl, 4 = Alt, 5 = Alt+Shift, + # 8 = Meta, 16 = Win + value: 5 +#endif + mirror: always + +# Does the access key by itself focus the menu bar? +- name: ui.key.menuAccessKeyFocuses + type: bool +#if defined(XP_WIN) || defined(MOZ_WIDGET_GTK) + # On Windows and Linux, we now default to showing the menu bar only when alt + # is pressed. + value: true +#else + value: false +#endif + mirror: always + +# Duration of timeout of incremental search in menus (ms). 0 means infinite. +- name: ui.menu.incremental_search.timeout + type: uint32_t + value: 1000 + mirror: always + +# If true, all popups won't hide automatically on blur +- name: ui.popup.disable_autohide + type: RelaxedAtomicBool + value: false + mirror: always + +# Negate scroll, true will make the mouse scroll wheel move the screen the +# same direction as with most desktops or laptops. +- name: ui.scrolling.negate_wheel_scroll + type: RelaxedAtomicBool + value: @IS_ANDROID@ + mirror: always + +# If the user puts a finger down on an element and we think the user might be +# executing a pan gesture, how long do we wait before tentatively deciding the +# gesture is actually a tap and activating the target element? +- name: ui.touch_activation.delay_ms + type: int32_t + value: 100 + mirror: always + +# If the user has clicked an element, how long do we keep the :active state +# before it is cleared by the mouse sequences fired after a +# touchstart/touchend. +- name: ui.touch_activation.duration_ms + type: int32_t + value: 10 + mirror: always + +- name: ui.use_native_colors + type: RelaxedAtomicBool + value: true + mirror: always + +# Prevent system colors from being exposed to CSS or canvas. +- name: ui.use_standins_for_native_colors + type: RelaxedAtomicBool + value: false + mirror: always + +# Disable page loading activity cursor by default. +- name: ui.use_activity_cursor + type: bool + value: false + mirror: always + +# Whether context menus should only appear on mouseup instead of mousedown, +# on OSes where they normally appear on mousedown (macOS, *nix). +# Note: ignored on Windows (context menus always use mouseup). +- name: ui.context_menus.after_mouseup + type: bool + value: false + mirror: always + +# Whether click-hold context menus are enabled. +- name: ui.click_hold_context_menus + type: RelaxedAtomicBool + value: false + mirror: always + +# How long to wait for a drag gesture before displaying click-hold context menu, +# in milliseconds. +- name: ui.click_hold_context_menus.delay + type: RelaxedAtomicInt32 + value: 500 + mirror: always + +# When enabled, the touch.radius and mouse.radius prefs allow events to be +# dispatched to nearby elements that are sensitive to the event. See +# PositionedEventTargeting.cpp. The 'mm' prefs define a rectangle around the +# nominal event target point within which we will search for suitable elements. +# 'visitedWeight' is a percentage weight; a value > 100 makes a visited link be +# treated as further away from the event target than it really is, while a +# value < 100 makes a visited link be treated as closer to the event target +# than it really is. + +- name: ui.touch.radius.enabled + type: bool + value: @IS_ANDROID@ + mirror: always + +- name: ui.touch.radius.topmm + type: uint32_t +#ifdef ANDROID + value: 5 +#else + value: 12 +#endif + mirror: always + +- name: ui.touch.radius.rightmm + type: uint32_t +#ifdef ANDROID + value: 3 +#else + value: 8 +#endif + mirror: always + +- name: ui.touch.radius.bottommm + type: uint32_t +#ifdef ANDROID + value: 2 +#else + value: 4 +#endif + mirror: always + +- name: ui.touch.radius.leftmm + type: uint32_t +#ifdef ANDROID + value: 3 +#else + value: 8 +#endif + mirror: always + +- name: ui.touch.radius.visitedWeight + type: uint32_t + value: 120 + mirror: always + +- name: ui.mouse.radius.enabled + type: bool + value: @IS_ANDROID@ + mirror: always + +- name: ui.mouse.radius.topmm + type: uint32_t +#ifdef ANDROID + value: 5 +#else + value: 12 +#endif + mirror: always + +- name: ui.mouse.radius.rightmm + type: uint32_t +#ifdef ANDROID + value: 3 +#else + value: 8 +#endif + mirror: always + +- name: ui.mouse.radius.bottommm + type: uint32_t +#ifdef ANDROID + value: 2 +#else + value: 4 +#endif + mirror: always + +- name: ui.mouse.radius.leftmm + type: uint32_t +#ifdef ANDROID + value: 3 +#else + value: 8 +#endif + mirror: always + +- name: ui.mouse.radius.visitedWeight + type: uint32_t + value: 120 + mirror: always + +- name: ui.mouse.radius.reposition + type: bool + value: @IS_ANDROID@ + mirror: always + +# When true, the ui.mouse.radius.* prefs will only affect simulated mouse +# events generated by touch input. When false, the prefs will be used for all +# mouse events. +- name: ui.mouse.radius.inputSource.touchOnly + type: bool + value: true + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "urlclassifier." +#--------------------------------------------------------------------------- + +# Update server response timeout for Safe Browsing. +- name: urlclassifier.update.response_timeout_ms + type: uint32_t + value: 30000 + mirror: always + +# Download update timeout for Safe Browsing. +- name: urlclassifier.update.timeout_ms + type: uint32_t + value: 90000 + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "view_source." +#--------------------------------------------------------------------------- + +- name: view_source.editor.external + type: bool + value: false + mirror: always + +- name: view_source.wrap_long_lines + type: bool + value: @IS_ANDROID@ + mirror: always + +- name: view_source.syntax_highlight + type: bool + value: true + mirror: always + +- name: view_source.tab_size + type: int32_t + value: 4 + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "webgl." (for pref access from Worker threads) +#--------------------------------------------------------------------------- + +- name: webgl.1.allow-core-profiles + type: RelaxedAtomicBool +#ifdef XP_MACOSX + value: true +#else + value: false +#endif + mirror: always + +- name: webgl.all-angle-options + type: RelaxedAtomicBool + value: false + mirror: always + +- name: webgl.angle.force-d3d11 + type: RelaxedAtomicBool + value: false + mirror: always + +- name: webgl.angle.try-d3d11 + type: RelaxedAtomicBool +#ifdef XP_WIN + value: true +#else + value: false +#endif + mirror: always + +- name: webgl.angle.force-warp + type: RelaxedAtomicBool + value: false + mirror: always + +- name: webgl.can-lose-context-in-foreground + type: RelaxedAtomicBool + value: true + mirror: always + +- name: webgl.cgl.multithreaded + type: RelaxedAtomicBool + value: true + mirror: always + +- name: webgl.debug.incomplete-tex-color + type: RelaxedAtomicUint32 + value: 0 + mirror: always + +- name: webgl.default-antialias + type: RelaxedAtomicBool + value: @IS_NOT_ANDROID@ + mirror: always + +- name: webgl.default-no-alpha + type: RelaxedAtomicBool + value: false + mirror: always + +- name: webgl.disable-angle + type: RelaxedAtomicBool + value: false + mirror: always + +- name: webgl.disable-wgl + type: RelaxedAtomicBool + value: false + mirror: always + +- name: webgl.dxgl.enabled + type: RelaxedAtomicBool +#ifdef XP_WIN + value: true +#else + value: false +#endif + mirror: always + +- name: webgl.dxgl.needs-finish + type: RelaxedAtomicBool + value: false + mirror: always + +- name: webgl.disable-fail-if-major-performance-caveat + type: RelaxedAtomicBool + value: true + mirror: always + +- name: webgl.disable-DOM-blit-uploads + type: RelaxedAtomicBool + value: false + mirror: always + +- name: webgl.disabled + type: RelaxedAtomicBool + value: false + mirror: always + +- name: webgl.enable-debug-renderer-info + type: RelaxedAtomicBool + value: true + mirror: always + +- name: webgl.enable-draft-extensions + type: RelaxedAtomicBool + value: false + mirror: always + +- name: webgl.enable-privileged-extensions + type: RelaxedAtomicBool + value: false + mirror: always + +- name: webgl.enable-surface-texture + type: RelaxedAtomicBool + value: true + mirror: always + +- name: webgl.enable-ahardwarebuffer + type: RelaxedAtomicBool + value: false + mirror: always + +- name: webgl.enable-webgl2 + type: RelaxedAtomicBool + value: true + mirror: always + +- name: webgl.force-enabled + type: RelaxedAtomicBool + value: false + mirror: always + +- name: webgl.force-layers-readback + type: RelaxedAtomicBool + value: false + mirror: always + +- name: webgl.force-index-validation + type: RelaxedAtomicInt32 + value: 0 + mirror: always + +- name: webgl.lose-context-on-memory-pressure + type: RelaxedAtomicBool + value: false + mirror: always + +- name: webgl.max-contexts + type: RelaxedAtomicUint32 + value: 1000 + mirror: always + +- name: webgl.max-contexts-per-principal + type: RelaxedAtomicUint32 + value: 300 + mirror: always + +- name: webgl.max-warnings-per-context + type: RelaxedAtomicUint32 + value: 32 + mirror: always + +- name: webgl.min_capability_mode + type: RelaxedAtomicBool + value: false + mirror: always + +- name: webgl.msaa-force + type: RelaxedAtomicBool + value: false + mirror: always + +- name: webgl.msaa-samples + type: RelaxedAtomicUint32 + value: 4 + mirror: always + +- name: webgl.out-of-process + type: RelaxedAtomicBool +#if defined(XP_MACOSX) || defined(XP_WIN) + value: true +#else + value: false +#endif + mirror: always + +- name: webgl.out-of-process.force + type: RelaxedAtomicBool + value: false + mirror: always + +- name: webgl.out-of-process.shmem-size + type: RelaxedAtomicUint32 + value: 100000 # 100KB + mirror: always + +- name: webgl.power-preference-override + type: RelaxedAtomicInt32 + value: 0 + mirror: always + +- name: webgl.prefer-16bpp + type: RelaxedAtomicBool + value: false + mirror: always + +- name: webgl.allow-immediate-queries + type: RelaxedAtomicBool + value: false + mirror: always + +- name: webgl.allow-fb-invalidation + type: RelaxedAtomicBool + value: false + mirror: always + + +- name: webgl.perf.max-warnings + type: RelaxedAtomicInt32 + value: 0 + mirror: always + +- name: webgl.perf.max-acceptable-fb-status-invals + type: RelaxedAtomicInt32 + value: 0 + mirror: always + +- name: webgl.perf.spew-frame-allocs + type: RelaxedAtomicBool + value: true + mirror: always + +- name: webgl.oop.via-pcq + type: RelaxedAtomicBool + value: false + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "widget." +#--------------------------------------------------------------------------- + +# Global user preference for disabling native theme in content processes. +- name: widget.disable-native-theme-for-content + type: RelaxedAtomicBool + value: false + mirror: always + +# Preference to disable dark scrollbar implementation. +# This is mainly for testing because dark scrollbars have to be semi- +# transparent, but many reftests expect scrollbars to look identical +# among different backgrounds. +# However, some users may want to disable this as well. +- name: widget.disable-dark-scrollbar + type: bool + value: false + mirror: always + +- name: widget.window-transforms.disabled + type: RelaxedAtomicBool + value: false + mirror: always + +# Whether to allow gtk dark themes in content. +- name: widget.content.allow-gtk-dark-theme + type: bool + value: false + mirror: always + +# Whether to use gtk high contrast themes to disable content styling like on +# windows high contrast mode. +- name: widget.content.gtk-high-contrast.enabled + type: bool + value: true + mirror: always + +# Whether to pause the compositor when a native window is minimized. +- name: widget.pause-compositor-when-minimized + type: bool + value: true + mirror: always + +#ifdef MOZ_WAYLAND +#ifdef NIGHTLY_BUILD +# Keep those pref hidden on non-nightly builds to avoid people accidentally +# turning it on. + +# Use DMABuf for content textures. +# For testing purposes only. +- name: widget.dmabuf-textures.enabled + type: RelaxedAtomicBool + value: false + mirror: always +#endif + +# Use smooth rendering for Wayland basic compositor. +- name: widget.wayland-smooth-rendering + type: RelaxedAtomicBool + value: false + mirror: always + +# Use DMABuf backend for WebGL. +- name: widget.dmabuf-webgl.enabled + type: RelaxedAtomicBool + value: true + mirror: always +#endif + +# Enable the RemoteLookAndFeel in content processes, which will cause all +# LookAndFeel values to be queried in the parent process and sent to content +# processes using IPC. This is required for widgets to paint and behave +# correctly when `security.sandbox.content.headless` is enabled. +- name: widget.remote-look-and-feel + type: bool +#ifdef MOZ_WIDGET_GTK + value: true +#else + value: false +#endif + mirror: once + +#--------------------------------------------------------------------------- +# Prefs starting with "xul." +#--------------------------------------------------------------------------- + +# Pref to control whether arrow-panel animations are enabled or not. +# Transitions are currently disabled on Linux due to rendering issues on +# certain configurations. +- name: xul.panel-animations.enabled + type: bool +#ifdef MOZ_WIDGET_GTK + value: false +#else + value: true +#endif + mirror: always + +#--------------------------------------------------------------------------- +# Prefs starting with "zoom." +#--------------------------------------------------------------------------- + +- name: zoom.maxPercent + type: uint32_t +#ifdef ANDROID + value: 400 +#else + value: 500 +#endif + mirror: always + +- name: zoom.minPercent + type: uint32_t +#ifdef ANDROID + value: 20 +#else + value: 30 +#endif + mirror: always + +#--------------------------------------------------------------------------- +# End of prefs +#--------------------------------------------------------------------------- |