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all.js
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all.js
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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* 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/. */
/* The prefs in this file are shipped with the GRE and should apply to all
* embedding situations. Application-specific preferences belong somewhere else,
* such as browser/app/profile/firefox.js or mobile/android/app/mobile.js.
*
* For the syntax used by this file, consult the comments at the top of
* modules/libpref/parser/src/lib.rs.
*
* Some prefs, especially VarCache prefs, are defined in StaticPrefList.h
* rather than this (or any other) data file.
*/
pref("keyword.enabled", false);
pref("general.useragent.compatMode.firefox", false);
// This pref exists only for testing purposes. In order to disable all
// overrides by default, don't initialize UserAgentOverrides.jsm.
pref("general.useragent.site_specific_overrides", true);
pref("general.config.obscure_value", 13); // for MCD .cfg files
pref("general.warnOnAboutConfig", true);
// maximum number of dated backups to keep at any time
pref("browser.bookmarks.max_backups", 5);
pref("browser.cache.disk.enable", true);
// Is this the first-time smartsizing has been introduced?
pref("browser.cache.disk.smart_size.first_run", true);
// Does the user want smart-sizing?
pref("browser.cache.disk.smart_size.enabled", true);
// Which max value should we use for smart-sizing?
pref("browser.cache.disk.smart_size.use_old_max", true);
// Size (in KB) explicitly set by the user. Used when smart_size.enabled == false
pref("browser.cache.disk.capacity", 256000);
// 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.
pref("browser.cache.disk.free_space_soft_limit", 5120); // 5MB
pref("browser.cache.disk.free_space_hard_limit", 1024); // 1MB
// 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)
pref("browser.cache.disk.max_entry_size", 51200); // 50 MB
pref("browser.cache.memory.enable", true);
// -1 = determine dynamically, 0 = none, n = memory capacity in kilobytes
//pref("browser.cache.memory.capacity", -1);
// 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)
pref("browser.cache.memory.max_entry_size", 5120);
// 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.
pref("browser.cache.disk.max_chunks_memory_usage", 40960);
pref("browser.cache.disk.max_priority_chunks_memory_usage", 40960);
pref("browser.cache.disk_cache_ssl", true);
// 0 = once-per-session, 1 = each-time, 2 = never, 3 = when-appropriate/automatically
pref("browser.cache.check_doc_frequency", 3);
// Limit of recent metadata we keep in memory for faster access, in Kb
pref("browser.cache.disk.metadata_memory_limit", 250); // 0.25 MB
// The number of chunks we preload ahead of read. One chunk has currently 256kB.
pref("browser.cache.disk.preload_chunk_count", 4); // 1 MB of read ahead
// The half life used to re-compute cache entries frecency in hours.
pref("browser.cache.frecency_half_life_hours", 6);
// Number of seconds the cache spends writting pending data and closing files
// after the shutdown has been signalled. Past that time data are never written
// and files are left open given up to the OS to do the cleanup.
pref("browser.cache.max_shutdown_io_lag", 2);
pref("browser.cache.offline.enable", true);
// AppCache over insecure connection is disabled by default
pref("browser.cache.offline.insecure.enable", false);
// enable offline apps by default, disable prompt
pref("offline-apps.allow_by_default", true);
// offline cache capacity in kilobytes
pref("browser.cache.offline.capacity", 512000);
// the user should be warned if offline app disk usage exceeds this amount
// (in kilobytes)
pref("offline-apps.quota.warn", 51200);
// zlib compression level used for cache compression:
// 0 => disable compression
// 1 => best speed
// 9 => best compression
// cache compression turned off for now - see bug #715198
pref("browser.cache.compression_level", 0);
// Don't show "Open with" option on download dialog if true.
pref("browser.download.forbid_open_with", false);
// Remove navigator.registerContentHandler
pref("dom.registerContentHandler.enabled", false);
// Insecure registerProtocolHandler is disabled by default
pref("dom.registerProtocolHandler.insecure.enabled", false);
// Whether or not testing features are enabled.
pref("dom.quotaManager.testing", false);
// Whether or not indexedDB is enabled.
pref("dom.indexedDB.enabled", true);
// Whether or not indexedDB experimental features are enabled.
pref("dom.indexedDB.experimental", false);
// Enable indexedDB logging.
pref("dom.indexedDB.logging.enabled", true);
// Detailed output in log messages.
pref("dom.indexedDB.logging.details", true);
// Enable profiler marks for indexedDB events.
pref("dom.indexedDB.logging.profiler-marks", false);
// Enable passing the "storage" option to indexedDB.open.
pref("dom.indexedDB.storageOption.enabled", false);
// Whether or not File Handle is enabled.
pref("dom.fileHandle.enabled", true);
// Whether window.onappinstalled from "W3C Web Manifest" is enabled
pref("dom.manifest.onappinstalled", false);
// Whether or not selection events are enabled
pref("dom.select_events.enabled", true);
// Whether or not selection events on text controls are enabled
#ifdef NIGHTLY_BUILD
pref("dom.select_events.textcontrols.enabled", true);
#else
pref("dom.select_events.textcontrols.enabled", false);
#endif
// The number of workers per domain allowed to run concurrently.
// We're going for effectively infinite, while preventing abuse.
pref("dom.workers.maxPerDomain", 512);
pref("dom.serviceWorkers.enabled", false);
// The amount of time (milliseconds) service workers keep running after each event.
pref("dom.serviceWorkers.idle_timeout", 30000);
// The amount of time (milliseconds) service workers can be kept running using waitUntil promises.
pref("dom.serviceWorkers.idle_extended_timeout", 300000);
// The amount of time (milliseconds) an update request is delayed when triggered
// by a service worker that doesn't control any clients.
pref("dom.serviceWorkers.update_delay", 1000);
// Enable test for 24 hours update, service workers will always treat last update check time is over 24 hours
pref("dom.serviceWorkers.testUpdateOverOneDay", false);
// Whether nonzero values can be returned from performance.timing.*
pref("dom.enable_performance", true);
// Whether resource timing will be gathered and returned by performance.GetEntries*
pref("dom.enable_resource_timing", true);
// Whether performance.GetEntries* will contain an entry for the active document
pref("dom.enable_performance_navigation_timing", true);
// Enable printing performance marks/measures to log
pref("dom.performance.enable_user_timing_logging", false);
// Enable notification of performance timing
pref("dom.performance.enable_notify_performance_timing", false);
// Enable collecting of docgroup activity in the scheduler
pref("dom.performance.enable_scheduler_timing", false);
// Enable Permission API's .revoke() method
pref("dom.permissions.revoke.enable", false);
// Enable exposing timeToNonBlankPaint
pref("dom.performance.time_to_non_blank_paint.enabled", false);
// Enable exposing timeToDOMContentFlushed
pref("dom.performance.time_to_dom_content_flushed.enabled", false);
// Enable Performance Observer API
pref("dom.enable_performance_observer", true);
// Enable requestIdleCallback API
pref("dom.requestIdleCallback.enabled", true);
// Whether the Gamepad API is enabled
pref("dom.gamepad.enabled", true);
pref("dom.gamepad.test.enabled", false);
#ifdef RELEASE_OR_BETA
pref("dom.gamepad.non_standard_events.enabled", false);
#else
pref("dom.gamepad.non_standard_events.enabled", true);
#endif
pref("dom.gamepad.extensions.enabled", true);
pref("dom.gamepad.haptic_feedback.enabled", true);
// 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).
#ifdef EARLY_BETA_OR_EARLIER
pref("dom.keyboardevent.dispatch_during_composition", true);
#else
pref("dom.keyboardevent.dispatch_during_composition", false);
#endif
// If this is true, TextEventDispatcher dispatches keypress event with setting
// WidgetEvent::mFlags::mOnlySystemGroupDispatchInContent to true if it won't
// cause inputting printable character.
#ifdef NIGHTLY_BUILD
pref("dom.keyboardevent.keypress.dispatch_non_printable_keys_only_system_group_in_content", true);
// Blacklist of domains of web apps which are not aware of strict keypress
// dispatching behavior. This is comma separated list. If you need to match
// all sub-domains, you can specify it as "*.example.com". Additionally, you
// can limit the path. E.g., "example.com/foo" means "example.com/foo*". So,
// if you need to limit under a directory, the path should end with "/" like
// "example.com/foo/". Note that this cannot limit port number for now.
pref("dom.keyboardevent.keypress.hack.dispatch_non_printable_keys",
"docs.google.com,mail.google.com,hangouts.google.com,keep.google.com,inbox.google.com,*.etherpad.org/p/,etherpad.wikimedia.org/p/,board.net/p/,pad.riseup.net/p/,*.sandstorm.io,factor.cc/pad/,*.etherpad.fr/p/,piratenpad.de/p/,notes.typo3.org/p/,etherpad.net/p/,*.framapad.org/p/,pad.ouvaton.coop/,pad.systemli.org/p/,pad.lqdn.fr/p/,public.etherpad-mozilla.org/p/,*.cloudron.me/p/,pad.aquilenet.fr/p/,free.primarypad.com/p/,pad.ondesk.work/p/,demo.maadix.org/etherpad/pads/,paper.dropbox.com/doc");
#else
pref("dom.keyboardevent.keypress.dispatch_non_printable_keys_only_system_group_in_content", false);
#endif
// Whether the WebMIDI API is enabled
pref("dom.webmidi.enabled", false);
// 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.
pref("dom.script_loader.bytecode_cache.enabled", true);
// 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.
pref("dom.script_loader.bytecode_cache.strategy", 0);
#ifdef JS_BUILD_BINAST
pref("dom.script_loader.binast_encoding.enabled", false);
#endif
// Fastback caching - if this pref is negative, then we calculate the number
// of content viewers to cache based on the amount of available memory.
pref("browser.sessionhistory.max_total_viewers", -1);
pref("ui.use_native_colors", true);
pref("ui.click_hold_context_menus", false);
// Pop up context menu on mouseup instead of mousedown, if that's the OS default.
// Note: ignored on Windows (context menus always use mouseup)
pref("ui.context_menus.after_mouseup", false);
// Duration of timeout of incremental search in menus (ms). 0 means infinite.
pref("ui.menu.incremental_search.timeout", 1000);
// If true, all popups won't hide automatically on blur
pref("ui.popup.disable_autohide", false);
pref("browser.display.use_document_fonts", 1); // 0 = never, 1 = quick, 2 = always
// 0 = default: always, except in high contrast mode
// 1 = always
// 2 = never
pref("browser.display.document_color_use", 0);
pref("browser.display.use_system_colors", false);
pref("browser.display.foreground_color", "#000000");
pref("browser.display.background_color", "#FFFFFF");
pref("browser.display.force_inline_alttext", false); // true = force ALT text for missing images to be layed out inline
// 0 = no external leading,
// 1 = use external leading only when font provides,
// 2 = add extra leading both internal leading and external leading are zero
pref("browser.display.normal_lineheight_calc_control", 2);
// enable showing image placeholders while image is loading or when image is broken
pref("browser.display.show_image_placeholders", true);
// if browser.display.show_image_placeholders is true then this controls whether the loading image placeholder and border is shown or not
pref("browser.display.show_loading_image_placeholder", false);
// min font device pixel size at which to turn on high quality
pref("browser.display.auto_quality_min_font_size", 20);
pref("browser.anchor_color", "#0000EE");
pref("browser.active_color", "#EE0000");
pref("browser.visited_color", "#551A8B");
pref("browser.underline_anchors", true);
pref("browser.enable_automatic_image_resizing", false);
pref("browser.enable_click_image_resizing", true);
// See http://dev.w3.org/html5/spec/forms.html#attr-fe-autofocus
pref("browser.autofocus", true);
// See http://whatwg.org/specs/web-apps/current-work/#ping
pref("browser.send_pings", false);
pref("browser.send_pings.max_per_link", 1); // limit the number of pings that are sent per link click
pref("browser.send_pings.require_same_host", false); // only send pings to the same host if this is true
pref("browser.display.use_focus_colors", false);
pref("browser.display.focus_background_color", "#117722");
pref("browser.display.focus_text_color", "#ffffff");
pref("browser.display.focus_ring_width", 1);
pref("browser.display.focus_ring_on_anything", false);
// focus ring border style.
// 0 = solid border, 1 = dotted border
pref("browser.display.focus_ring_style", 1);
pref("browser.helperApps.neverAsk.saveToDisk", "");
pref("browser.helperApps.neverAsk.openFile", "");
pref("browser.helperApps.deleteTempFileOnExit", false);
// xxxbsmedberg: where should prefs for the toolkit go?
pref("browser.chrome.toolbar_tips", true);
// max image size for which it is placed in the tab icon for tabbrowser.
// if 0, no images are used for tab icons for image documents.
pref("browser.chrome.image_icons.max_size", 1024);
pref("browser.triple_click_selects_paragraph", true);
// Print/Preview Shrink-To-Fit won't shrink below 20% for text-ish documents.
pref("print.shrink-to-fit.scale-limit-percent", 20);
// Whether we should display simplify page checkbox on print preview UI
pref("print.use_simplify_page", false);
// Disable support for MathML
pref("mathml.disabled", false);
// Enable scale transform for stretchy MathML operators. See bug 414277.
pref("mathml.scale_stretchy_operators.enabled", true);
// Used by ChannelMediaResource to run data callbacks from HTTP channel
// off the main thread.
pref("media.omt_data_delivery.enabled", true);
// We'll throttle the download if the download rate is throttle-factor times
// the estimated playback rate, AND we satisfy the cache readahead_limit
// above. The estimated playback rate is time_duration/length_in_bytes.
// This means we'll only throttle the download if there's no concern that
// throttling would cause us to stop and buffer.
pref("media.throttle-factor", 2);
// By default, we'll throttle media download once we've reached the the
// readahead_limit if the download is fast. This pref toggles the "and the
// download is fast" check off, so that we can always throttle the download
// once the readaheadd limit is reached even on a slow network.
pref("media.throttle-regardless-of-download-rate", false);
// Master HTML5 media volume scale.
pref("media.volume_scale", "1.0");
// Whether we should play videos opened in a "video document", i.e. videos
// opened as top-level documents, as opposed to inside a media element.
pref("media.play-stand-alone", true);
pref("media.hardware-video-decoding.enabled", true);
pref("media.hardware-video-decoding.force-enabled", false);
#ifdef MOZ_WMF
pref("media.wmf.dxva.enabled", true);
pref("media.wmf.dxva.d3d11.enabled", true);
pref("media.wmf.dxva.max-videos", 8);
pref("media.wmf.low-latency.enabled", false);
pref("media.wmf.amd.vp9.enabled", false);
pref("media.wmf.amd.highres.enabled", true);
pref("media.wmf.allow-unsupported-resolutions", false);
pref("media.wmf.use-nv12-format", true);
pref("media.wmf.disable-d3d11-for-dlls", "igd11dxva64.dll: 20.19.15.4463, 20.19.15.4454, 20.19.15.4444, 20.19.15.4416, 20.19.15.4404, 20.19.15.4390, 20.19.15.4380, 20.19.15.4377, 20.19.15.4364, 20.19.15.4360, 20.19.15.4352, 20.19.15.4331, 20.19.15.4326, 20.19.15.4300; igd10iumd32.dll: 20.19.15.4444, 20.19.15.4424, 20.19.15.4409, 20.19.15.4390, 20.19.15.4380, 20.19.15.4360, 10.18.10.4358, 20.19.15.4331, 20.19.15.4312, 20.19.15.4300, 10.18.15.4281, 10.18.15.4279, 10.18.10.4276, 10.18.15.4268, 10.18.15.4256, 10.18.10.4252, 10.18.15.4248, 10.18.14.4112, 10.18.10.3958, 10.18.10.3496, 10.18.10.3431, 10.18.10.3412, 10.18.10.3355, 9.18.10.3234, 9.18.10.3071, 9.18.10.3055, 9.18.10.3006; igd10umd32.dll: 9.17.10.4229, 9.17.10.3040, 9.17.10.2884, 9.17.10.2857, 8.15.10.2274, 8.15.10.2272, 8.15.10.2246, 8.15.10.1840, 8.15.10.1808; igd10umd64.dll: 9.17.10.4229, 9.17.10.2884, 9.17.10.2857, 10.18.10.3496; isonyvideoprocessor.dll: 4.1.2247.8090, 4.1.2153.6200; tosqep.dll: 1.2.15.526, 1.1.12.201, 1.0.11.318, 1.0.11.215, 1.0.10.1224; tosqep64.dll: 1.1.12.201, 1.0.11.215; nvwgf2um.dll: 22.21.13.8253, 22.21.13.8233, 22.21.13.8205, 22.21.13.8189, 22.21.13.8178, 22.21.13.8165, 21.21.13.7892, 21.21.13.7878, 21.21.13.7866, 21.21.13.7849, 21.21.13.7654, 21.21.13.7653, 21.21.13.7633, 21.21.13.7619, 21.21.13.7563, 21.21.13.7306, 21.21.13.7290, 21.21.13.7270, 21.21.13.7254, 21.21.13.6939, 21.21.13.6926, 21.21.13.6909, 21.21.13.4201, 21.21.13.4200, 10.18.13.6881, 10.18.13.6839, 10.18.13.6510, 10.18.13.6472, 10.18.13.6143, 10.18.13.5946, 10.18.13.5923, 10.18.13.5921, 10.18.13.5891, 10.18.13.5887, 10.18.13.5582, 10.18.13.5445, 10.18.13.5382, 10.18.13.5362, 9.18.13.4788, 9.18.13.4752, 9.18.13.4725, 9.18.13.4709, 9.18.13.4195, 9.18.13.4192, 9.18.13.4144, 9.18.13.4052, 9.18.13.3788, 9.18.13.3523, 9.18.13.3235, 9.18.13.3165, 9.18.13.2723, 9.18.13.2702, 9.18.13.1422, 9.18.13.1407, 9.18.13.1106, 9.18.13.546; atidxx32.dll: 21.19.151.3, 21.19.142.257, 21.19.137.514, 21.19.137.1, 21.19.134.1, 21.19.128.7, 21.19.128.4, 20.19.0.32837, 20.19.0.32832, 8.17.10.682, 8.17.10.671, 8.17.10.661, 8.17.10.648, 8.17.10.644, 8.17.10.625, 8.17.10.605, 8.17.10.581, 8.17.10.569, 8.17.10.560, 8.17.10.545, 8.17.10.539, 8.17.10.531, 8.17.10.525, 8.17.10.520, 8.17.10.519, 8.17.10.514, 8.17.10.511, 8.17.10.494, 8.17.10.489, 8.17.10.483, 8.17.10.453, 8.17.10.451, 8.17.10.441, 8.17.10.436, 8.17.10.432, 8.17.10.425, 8.17.10.418, 8.17.10.414, 8.17.10.401, 8.17.10.395, 8.17.10.385, 8.17.10.378, 8.17.10.362, 8.17.10.355, 8.17.10.342, 8.17.10.331, 8.17.10.318, 8.17.10.310, 8.17.10.286, 8.17.10.269, 8.17.10.261, 8.17.10.247, 8.17.10.240, 8.15.10.212; atidxx64.dll: 21.19.151.3, 21.19.142.257, 21.19.137.514, 21.19.137.1, 21.19.134.1, 21.19.128.7, 21.19.128.4, 20.19.0.32832, 8.17.10.682, 8.17.10.661, 8.17.10.644, 8.17.10.625; nvumdshim.dll: 10.18.13.6822");
pref("media.wmf.disable-d3d9-for-dlls", "igdumd64.dll: 8.15.10.2189, 8.15.10.2119, 8.15.10.2104, 8.15.10.2102, 8.771.1.0; atiumd64.dll: 7.14.10.833, 7.14.10.867, 7.14.10.885, 7.14.10.903, 7.14.10.911, 8.14.10.768, 9.14.10.1001, 9.14.10.1017, 9.14.10.1080, 9.14.10.1128, 9.14.10.1162, 9.14.10.1171, 9.14.10.1183, 9.14.10.1197, 9.14.10.945, 9.14.10.972, 9.14.10.984, 9.14.10.996");
pref("media.wmf.deblacklisting-for-telemetry-in-gpu-process", true);
pref("media.wmf.play-stand-alone", true);
pref("media.wmf.use-sync-texture", true);
#endif
pref("media.gmp.decoder.aac", 0);
pref("media.gmp.decoder.h264", 0);
pref("media.opus.enabled", true);
pref("media.wave.enabled", true);
pref("media.webm.enabled", true);
// GMP storage version number. At startup we check the version against
// media.gmp.storage.version.observed, and if the versions don't match,
// we clear storage and set media.gmp.storage.version.observed=expected.
// This provides a mechanism to clear GMP storage when non-compatible
// changes are made.
pref("media.gmp.storage.version.expected", 1);
// Filter what triggers user notifications.
// See DecoderDoctorDocumentWatcher::ReportAnalysis for details.
#ifdef NIGHTLY_BUILD
pref("media.decoder-doctor.notifications-allowed", "MediaWMFNeeded,MediaWidevineNoWMF,MediaCannotInitializePulseAudio,MediaCannotPlayNoDecoders,MediaUnsupportedLibavcodec,MediaDecodeError");
#else
pref("media.decoder-doctor.notifications-allowed", "MediaWMFNeeded,MediaWidevineNoWMF,MediaCannotInitializePulseAudio,MediaCannotPlayNoDecoders,MediaUnsupportedLibavcodec");
#endif
pref("media.decoder-doctor.decode-errors-allowed", "");
pref("media.decoder-doctor.decode-warnings-allowed", "");
// Whether we report partial failures.
pref("media.decoder-doctor.verbose", false);
// URL to report decode issues
pref("media.decoder-doctor.new-issue-endpoint", "https://webcompat.com/issues/new");
#ifdef MOZ_WEBRTC
pref("media.navigator.enabled", true);
pref("media.navigator.video.enabled", true);
pref("media.navigator.video.default_fps",30);
pref("media.navigator.video.use_remb", true);
pref("media.navigator.video.use_tmmbr", false);
pref("media.navigator.audio.use_fec", true);
pref("media.navigator.video.red_ulpfec_enabled", false);
pref("media.peerconnection.dtmf.enabled", true);
pref("media.webrtc.debug.trace_mask", 0);
pref("media.webrtc.debug.multi_log", false);
pref("media.webrtc.debug.log_file", "");
pref("media.webrtc.debug.aec_dump_max_size", 4194304); // 4MB
pref("media.navigator.video.default_width",0); // adaptive default
pref("media.navigator.video.default_height",0); // adaptive default
pref("media.peerconnection.enabled", true);
pref("media.peerconnection.video.enabled", true);
pref("media.navigator.video.max_fs", 12288); // Enough for 2048x1536
pref("media.navigator.video.max_fr", 60);
pref("media.navigator.video.h264.level", 31); // 0x42E01f - level 3.1
pref("media.navigator.video.h264.max_br", 0);
pref("media.navigator.video.h264.max_mbps", 0);
pref("media.peerconnection.video.vp9_enabled", true);
pref("media.peerconnection.video.vp9_preferred", false);
pref("media.getusermedia.aec", 1);
pref("media.getusermedia.browser.enabled", false);
pref("media.getusermedia.channels", 0);
#if defined(ANDROID)
pref("media.getusermedia.camera.off_while_disabled.enabled", false);
pref("media.getusermedia.microphone.off_while_disabled.enabled", false);
#else
pref("media.getusermedia.camera.off_while_disabled.enabled", true);
pref("media.getusermedia.microphone.off_while_disabled.enabled", true);
#endif
pref("media.getusermedia.camera.off_while_disabled.delay_ms", 3000);
pref("media.getusermedia.microphone.off_while_disabled.delay_ms", 3000);
// Desktop is typically VGA capture or more; and qm_select will not drop resolution
// below 1/2 in each dimension (or so), so QVGA (320x200) is the lowest here usually.
pref("media.peerconnection.video.min_bitrate", 0);
pref("media.peerconnection.video.start_bitrate", 0);
pref("media.peerconnection.video.max_bitrate", 0);
pref("media.peerconnection.video.min_bitrate_estimate", 0);
pref("media.peerconnection.video.denoising", false);
pref("media.navigator.audio.fake_frequency", 1000);
pref("media.navigator.permission.disabled", false);
pref("media.navigator.streams.fake", false);
pref("media.peerconnection.simulcast", true);
pref("media.peerconnection.default_iceservers", "[]");
pref("media.peerconnection.ice.loopback", false); // Set only for testing in offline environments.
pref("media.peerconnection.ice.tcp", true);
pref("media.peerconnection.ice.tcp_so_sock_count", 0); // Disable SO gathering
pref("media.peerconnection.ice.link_local", false); // Set only for testing IPV6 in networks that don't assign IPV6 addresses
pref("media.peerconnection.ice.force_interface", ""); // Limit to only a single interface
pref("media.peerconnection.ice.relay_only", false); // Limit candidates to TURN
pref("media.peerconnection.use_document_iceservers", true);
pref("media.peerconnection.identity.enabled", true);
pref("media.peerconnection.identity.timeout", 10000);
pref("media.peerconnection.ice.stun_client_maximum_transmits", 7);
pref("media.peerconnection.ice.trickle_grace_period", 5000);
pref("media.peerconnection.ice.no_host", false);
pref("media.peerconnection.ice.default_address_only", false);
pref("media.peerconnection.ice.proxy_only", false);
pref("media.peerconnection.rtpsourcesapi.enabled", true);
// These values (aec, agc, and noise) are from media/webrtc/trunk/webrtc/common_types.h
// kXxxUnchanged = 0, kXxxDefault = 1, and higher values are specific to each
// setting (for Xxx = Ec, Agc, or Ns). Defaults are all set to kXxxDefault here.
pref("media.peerconnection.turn.disable", false);
#if defined(MOZ_WEBRTC_HARDWARE_AEC_NS)
pref("media.getusermedia.aec_enabled", false);
pref("media.getusermedia.noise_enabled", false);
#else
pref("media.getusermedia.aec_enabled", true);
pref("media.getusermedia.noise_enabled", true);
#endif
pref("media.getusermedia.aec_extended_filter", true);
pref("media.getusermedia.noise", 1);
pref("media.getusermedia.agc_enabled", false);
pref("media.getusermedia.agc", 3); // kAgcAdaptiveDigital
// capture_delay: Adjustments for OS-specific input delay (lower bound)
// playout_delay: Adjustments for OS-specific AudioStream+cubeb+output delay (lower bound)
// full_duplex: enable cubeb full-duplex capture/playback
pref("media.navigator.audio.full_duplex", true);
#if defined(XP_MACOSX)
pref("media.peerconnection.capture_delay", 50);
#elif defined(XP_WIN)
pref("media.peerconnection.capture_delay", 50);
#elif defined(ANDROID)
pref("media.peerconnection.capture_delay", 100);
#else
pref("media.peerconnection.capture_delay", 70);
#endif
#endif
pref("dom.webaudio.enabled", true);
// Exposes the navigator.webdriver attribute.
pref("dom.webdriver.enabled", true);
#if !defined(ANDROID)
pref("media.getusermedia.screensharing.enabled", true);
#endif
pref("media.getusermedia.audiocapture.enabled", false);
// TextTrack WebVTT Region extension support.
pref("media.webvtt.regions.enabled", true);
// WebVTT pseudo element and class support.
pref("media.webvtt.pseudo.enabled", true);
// AudioTrack and VideoTrack support
pref("media.track.enabled", false);
// Whether to enable MediaSource support.
pref("media.mediasource.enabled", true);
pref("media.mediasource.mp4.enabled", true);
#if defined(XP_WIN) || defined(XP_MACOSX) || defined(MOZ_WIDGET_ANDROID)
pref("media.mediasource.webm.enabled", false);
#else
pref("media.mediasource.webm.enabled", true);
#endif
pref("media.mediasource.webm.audio.enabled", true);
// Whether to enable MediaSource v2 support.
pref("media.mediasource.experimental.enabled", false);
pref("media.benchmark.vp9.threshold", 150);
pref("media.benchmark.frames", 300);
pref("media.benchmark.timeout", 1000);
#ifdef MOZ_WEBSPEECH
pref("media.webspeech.synth.enabled", false);
#endif
#ifdef MOZ_WEBM_ENCODER
pref("media.encoder.webm.enabled", true);
#endif
// Whether to allow recording of AudioNodes with MediaRecorder
pref("media.recorder.audio_node.enabled", false);
// Whether MediaRecorder's video encoder should allow dropping frames in order
// to keep up under load. Useful for tests but beware of memory consumption!
pref("media.recorder.video.frame_drops", true);
// Whether to autostart a media element with an |autoplay| attribute
pref("media.autoplay.enabled", true);
// If "media.autoplay.enabled" is false, and this pref is true, then audible media
// would only be allowed to autoplay after website has been activated by specific
// user gestures, but the non-audible media won't be restricted.
#ifdef NIGHTLY_BUILD
pref("media.autoplay.enabled.user-gestures-needed", false);
#endif
// The default number of decoded video frames that are enqueued in
// MediaDecoderReader's mVideoQueue.
pref("media.video-queue.default-size", 10);
// The maximum number of queued frames to send to the compositor.
// By default, send all of them.
pref("media.video-queue.send-to-compositor-size", 9999);
// Whether to disable the video stats to prevent fingerprinting
pref("media.video_stats.enabled", true);
// Log level for cubeb, the audio input/output system. Valid values are
// "verbose", "normal" and "" (log disabled).
pref("media.cubeb.logging_level", "");
// Cubeb sandbox (remoting) control
#ifdef XP_LINUX
pref("media.cubeb.sandbox", true);
pref("media.audioipc.pool_size", 2);
// 64 * 4 kB stack per pool thread.
pref("media.audioipc.stack_size", 262144);
#else
pref("media.cubeb.sandbox", false);
#endif
pref("media.webaudio.audiocontextoptions-samplerate.enabled", true);
// Weather we allow AMD switchable graphics
pref("layers.amd-switchable-gfx.enabled", true);
// Whether to use async panning and zooming
pref("layers.async-pan-zoom.enabled", true);
// Whether to enable event region building during painting
pref("layout.event-regions.enabled", false);
// Whether to enable arbitrary layer geometry for OpenGL compositor
pref("layers.geometry.opengl.enabled", true);
// Whether to enable arbitrary layer geometry for Basic compositor
pref("layers.geometry.basic.enabled", true);
// Whether to enable arbitrary layer geometry for DirectX compositor
pref("layers.geometry.d3d11.enabled", true);
// APZ preferences. For documentation/details on what these prefs do, check
// gfx/layers/apz/src/AsyncPanZoomController.cpp.
pref("apz.allow_checkerboarding", true);
pref("apz.allow_immediate_handoff", true);
pref("apz.allow_zooming", false);
pref("apz.android.chrome_fling_physics.enabled", true);
pref("apz.android.chrome_fling_physics.friction", "0.015");
pref("apz.android.chrome_fling_physics.inflexion", "0.35");
pref("apz.android.chrome_fling_physics.stop_threshold", "0.1");
pref("apz.autoscroll.enabled", true);
// 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)
pref("apz.axis_lock.mode", 0);
pref("apz.axis_lock.lock_angle", "0.5235987"); // PI / 6 (30 degrees)
pref("apz.axis_lock.breakout_threshold", "0.03125"); // 1/32 inches
pref("apz.axis_lock.breakout_angle", "0.3926991"); // PI / 8 (22.5 degrees)
pref("apz.axis_lock.direct_pan_angle", "1.047197"); // PI / 3 (60 degrees)
pref("apz.content_response_timeout", 400);
pref("apz.drag.enabled", true);
pref("apz.drag.initial.enabled", true);
pref("apz.drag.touch.enabled", true);
pref("apz.danger_zone_x", 50);
pref("apz.danger_zone_y", 100);
pref("apz.disable_for_scroll_linked_effects", false);
pref("apz.displayport_expiry_ms", 15000);
pref("apz.enlarge_displayport_when_clipped", false);
pref("apz.fling_accel_base_mult", "1.0");
pref("apz.fling_accel_interval_ms", 500);
pref("apz.fling_accel_min_velocity", "1.5");
pref("apz.fling_accel_supplemental_mult", "1.0");
pref("apz.fling_curve_function_x1", "0.0");
pref("apz.fling_curve_function_y1", "0.0");
pref("apz.fling_curve_function_x2", "1.0");
pref("apz.fling_curve_function_y2", "1.0");
pref("apz.fling_curve_threshold_inches_per_ms", "-1.0");
pref("apz.fling_friction", "0.002");
pref("apz.fling_min_velocity_threshold", "0.5");
pref("apz.fling_stop_on_tap_threshold", "0.05");
pref("apz.fling_stopped_threshold", "0.01");
pref("apz.frame_delay.enabled", true);
#if !defined(MOZ_WIDGET_ANDROID)
pref("apz.keyboard.enabled", true);
pref("apz.keyboard.passive-listeners", true);
#else
pref("apz.keyboard.enabled", false);
pref("apz.keyboard.passive-listeners", false);
#endif
pref("apz.max_tap_time", 300);
pref("apz.max_velocity_inches_per_ms", "-1.0");
pref("apz.max_velocity_queue_size", 5);
pref("apz.min_skate_speed", "1.0");
pref("apz.minimap.enabled", false);
pref("apz.one_touch_pinch.enabled", true);
pref("apz.overscroll.enabled", false);
pref("apz.overscroll.min_pan_distance_ratio", "1.0");
pref("apz.overscroll.spring_friction", "0.015");
pref("apz.overscroll.spring_stiffness", "0.0018");
pref("apz.overscroll.stop_distance_threshold", "5.0");
pref("apz.overscroll.stop_velocity_threshold", "0.01");
pref("apz.overscroll.stretch_factor", "0.35");
pref("apz.paint_skipping.enabled", true);
// Fetch displayport updates early from the message queue
pref("apz.peek_messages.enabled", true);
pref("apz.pinch_lock.mode", 1);
pref("apz.pinch_lock.scoll_lock_threshold", "0.03125"); // 1/32 inches
pref("apz.pinch_lock.span_breakout_threshold", "0.03125"); // 1/32 inches
pref("apz.pinch_lock.span_lock_threshold", "0.03125"); // 1/32 inches
pref("apz.popups.enabled", false);
// Whether to print the APZC tree for debugging
pref("apz.printtree", false);
#ifdef NIGHTLY_BUILD
pref("apz.record_checkerboarding", true);
#else
pref("apz.record_checkerboarding", false);
#endif
pref("apz.second_tap_tolerance", "0.5");
pref("apz.test.logging_enabled", false);
pref("apz.touch_start_tolerance", "0.1");
pref("apz.touch_move_tolerance", "0.1");
pref("apz.velocity_bias", "0.0");
pref("apz.velocity_relevance_time_ms", 150);
pref("apz.x_skate_highmem_adjust", "0.0");
pref("apz.y_skate_highmem_adjust", "0.0");
pref("apz.x_skate_size_multiplier", "1.25");
pref("apz.y_skate_size_multiplier", "3.5");
pref("apz.x_stationary_size_multiplier", "1.5");
pref("apz.y_stationary_size_multiplier", "3.5");
pref("apz.zoom_animation_duration_ms", 250);
pref("apz.scale_repaint_delay_ms", 500);
#if defined(MOZ_WIDGET_ANDROID)
// Mobile prefs
pref("apz.allow_zooming", true);
pref("apz.enlarge_displayport_when_clipped", true);
pref("apz.y_skate_size_multiplier", "1.5");
pref("apz.y_stationary_size_multiplier", "1.5");
#endif
#ifdef XP_MACOSX
// Whether to run in native HiDPI mode on machines with "Retina"/HiDPI display;
// <= 0 : hidpi mode disabled, display will just use pixel-based upscaling
// == 1 : hidpi supported if all screens share the same backingScaleFactor
// >= 2 : hidpi supported even with mixed backingScaleFactors (somewhat broken)
pref("gfx.hidpi.enabled", 2);
#endif
#if !defined(MOZ_WIDGET_ANDROID)
// Use containerless scrolling for now on desktop.
pref("layout.scroll.root-frame-containers", false);
#endif
pref("layout.scrollbars.always-layerize-track", false);
// Whether to enable LayerScope tool and default listening port
pref("gfx.layerscope.enabled", false);
pref("gfx.layerscope.port", 23456);
// 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.
pref("gfx.perf-warnings.enabled", false);
// 0 = Off, 1 = Full, 2 = Tagged Images Only.
// See eCMSMode in gfx/thebes/gfxPlatform.h
pref("gfx.color_management.mode", 2);
pref("gfx.color_management.display_profile", "");
pref("gfx.color_management.rendering_intent", 0);
pref("gfx.color_management.enablev4", false);
pref("gfx.downloadable_fonts.enabled", true);
pref("gfx.downloadable_fonts.fallback_delay", 3000);
pref("gfx.downloadable_fonts.fallback_delay_short", 100);
// disable downloadable font cache so that behavior is consistently
// the uncached load behavior across pages (useful for testing reflow problems)
pref("gfx.downloadable_fonts.disable_cache", false);
pref("gfx.downloadable_fonts.woff2.enabled", true);
// Whether OTS validation should be applied to OpenType Layout (OTL) tables
#ifdef RELEASE_OR_BETA
pref("gfx.downloadable_fonts.otl_validation", false);
#else
pref("gfx.downloadable_fonts.otl_validation", true);
#endif
// 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).
pref("gfx.downloadable_fonts.keep_color_bitmaps", false);
// Whether to validate OpenType variation tables in fonts
pref("gfx.downloadable_fonts.validate_variation_tables", true);
#ifdef ANDROID
pref("gfx.bundled_fonts.enabled", true);
pref("gfx.bundled_fonts.force-enabled", false);
#endif
// Do we fire a notification about missing fonts, so the front-end can decide
// whether to try and do something about it (e.g. download additional fonts)?
pref("gfx.missing_fonts.notify", false);
// prefs controlling the font (name/cmap) loader that runs shortly after startup
#ifdef XP_WIN
pref("gfx.font_loader.delay", 120000); // 2 minutes after startup
pref("gfx.font_loader.interval", 1000); // every 1 second until complete
#else
pref("gfx.font_loader.delay", 8000); // 8 secs after startup
pref("gfx.font_loader.interval", 50); // run every 50 ms
#endif
// whether to always search all font cmaps during system font fallback
pref("gfx.font_rendering.fallback.always_use_cmaps", false);
// cache shaped word results
pref("gfx.font_rendering.wordcache.charlimit", 32);
// cache shaped word results
pref("gfx.font_rendering.wordcache.maxentries", 10000);
pref("gfx.font_rendering.graphite.enabled", true);
#ifdef XP_WIN
pref("gfx.font_rendering.directwrite.use_gdi_table_loading", true);
#endif
#ifdef XP_WIN
// comma separated list of backends to use in order of preference
// e.g., pref("gfx.canvas.azure.backends", "direct2d,skia,cairo");
pref("gfx.canvas.azure.backends", "direct2d1.1,skia,cairo");
pref("gfx.content.azure.backends", "direct2d1.1,skia,cairo");
#else
#ifdef XP_MACOSX
pref("gfx.content.azure.backends", "skia");
pref("gfx.canvas.azure.backends", "skia");
// Accelerated cg canvas where available (10.7+)
pref("gfx.canvas.azure.accelerated", true);
#else
pref("gfx.canvas.azure.backends", "skia");
pref("gfx.content.azure.backends", "skia");
#endif
#endif
pref("gfx.canvas.skiagl.dynamic-cache", true);
pref("gfx.text.disable-aa", false);
pref("gfx.work-around-driver-bugs", true);
pref("gfx.draw-color-bars", false);
pref("gfx.logging.painted-pixel-count.enabled", false);
pref("gfx.logging.texture-usage.enabled", false);
pref("gfx.logging.peak-texture-usage.enabled", false);
pref("gfx.ycbcr.accurate-conversion", false);
// On Nightly, 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.
// On non-Nightly, we ignore these prefs.
//
// On both Nightly and non-Nightly, we 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.
#ifdef NIGHTLY_BUILD
pref("gfx.webrender.all", false);
#ifdef MOZ_ENABLE_WEBRENDER
pref("gfx.webrender.enabled", true);
#else
pref("gfx.webrender.enabled", false);
#endif
#endif
#ifdef XP_WIN
pref("gfx.webrender.force-angle", true);
pref("gfx.webrender.dcomp-win.enabled", true);
pref("gfx.webrender.program-binary", true);
pref("gfx.webrender.program-binary-disk", true);
#endif
#ifdef XP_MACOSX
pref("gfx.compositor.glcontext.opaque", false);
#endif
pref("gfx.webrender.highlight-painted-layers", false);
pref("gfx.webrender.async-scene-build", true);
pref("gfx.webrender.blob-images", true);
pref("gfx.webrender.blob.invalidation", true);
pref("gfx.webrender.hit-test", true);
// WebRender debugging utilities.
pref("gfx.webrender.debug.texture-cache", false);
pref("gfx.webrender.debug.render-targets", false);
pref("gfx.webrender.debug.alpha-primitives", false);
pref("gfx.webrender.debug.profiler", false);
pref("gfx.webrender.debug.gpu-time-queries", false);
pref("gfx.webrender.debug.gpu-sample-queries", false);
pref("gfx.webrender.debug.disable-batching", false);
pref("gfx.webrender.debug.epochs", false);
pref("gfx.webrender.debug.compact-profiler", false);
pref("accessibility.browsewithcaret", false);
pref("accessibility.warn_on_browsewithcaret", true);
pref("accessibility.browsewithcaret_shortcut.enabled", true);
#ifndef XP_MACOSX
// Tab focus model bit field:
// 1 focuses text controls, 2 focuses other form elements, 4 adds links.
// Most users will want 1, 3, or 7.
// On OS X, we use Full Keyboard Access system preference,
// unless accessibility.tabfocus is set by the user.
pref("accessibility.tabfocus", 7);
pref("accessibility.tabfocus_applies_to_xul", false);
#else
// Only on mac tabfocus is expected to handle UI widgets as well as web content
pref("accessibility.tabfocus_applies_to_xul", true);
#endif
// We follow the "Click in the scrollbar to:" system preference on OS X and
// "gtk-primary-button-warps-slider" property with GTK (since 2.24 / 3.6),
// unless this preference is explicitly set.
#if !defined(XP_MACOSX) && !defined(MOZ_WIDGET_GTK)
pref("ui.scrollToClick", 0);
#endif
// provide ability to turn on support for canvas focus rings
pref("canvas.focusring.enabled", true);
pref("canvas.customfocusring.enabled", false);
pref("canvas.hitregions.enabled", false);
pref("canvas.filters.enabled", true);
// Add support for canvas path objects
pref("canvas.path.enabled", true);
pref("canvas.capturestream.enabled", true);
// Disable the ImageBitmap-extensions for now.
pref("canvas.imagebitmap_extensions.enabled", false);
// We want the ability to forcibly disable platform a11y, because
// some non-a11y-related components attempt to bring it up. See bug
// 538530 for details about Windows; we have a pref here that allows it
// to be disabled for performance and testing resons.
// See bug 761589 for the crossplatform aspect.
//
// This pref is checked only once, and the browser needs a restart to
// pick up any changes.
//
// Values are -1 always on. 1 always off, 0 is auto as some platform perform
// further checks.
pref("accessibility.force_disabled", 0);
pref("accessibility.AOM.enabled", false);
#ifdef XP_WIN
// Some accessibility tools poke at windows in the plugin process during setup
// which can cause hangs. To hack around this set accessibility.delay_plugins
// to true, you can also try increasing accessibility.delay_plugin_time if your
// machine is slow and you still experience hangs.
// See bug 781791.
pref("accessibility.delay_plugins", false);
pref("accessibility.delay_plugin_time", 10000);
// The COM handler used for Windows e10s performance and live regions
pref("accessibility.handler.enabled", true);
#endif
pref("focusmanager.testmode", false);
pref("accessibility.usetexttospeech", "");
pref("accessibility.accesskeycausesactivation", true);
pref("accessibility.mouse_focuses_formcontrol", false);
// Type Ahead Find
pref("accessibility.typeaheadfind", true);
pref("accessibility.typeaheadfind.autostart", true);
// casesensitive: controls the find bar's case-sensitivity
// 0 - "never" (case-insensitive)
// 1 - "always" (case-sensitive)
// other - "auto" (case-sensitive for mixed-case input, insensitive otherwise)
pref("accessibility.typeaheadfind.casesensitive", 0);
pref("accessibility.typeaheadfind.linksonly", true);
pref("accessibility.typeaheadfind.startlinksonly", false);
pref("accessibility.typeaheadfind.timeout", 4000);
pref("accessibility.typeaheadfind.enabletimeout", true);
pref("accessibility.typeaheadfind.soundURL", "beep");
pref("accessibility.typeaheadfind.enablesound", true);
#ifdef XP_MACOSX
pref("accessibility.typeaheadfind.prefillwithselection", false);
#else
pref("accessibility.typeaheadfind.prefillwithselection", true);
#endif
pref("accessibility.typeaheadfind.matchesCountLimit", 1000);
pref("findbar.highlightAll", false);
pref("findbar.modalHighlight", false);
pref("findbar.entireword", false);
pref("findbar.iteratorTimeout", 100);
// use Mac OS X Appearance panel text smoothing setting when rendering text, disabled by default
pref("gfx.use_text_smoothing_setting", false);
// Number of characters to consider emphasizing for rich autocomplete results
pref("toolkit.autocomplete.richBoundaryCutoff", 200);
// Variable controlling logging for osfile.
pref("toolkit.osfile.log", false);
pref("toolkit.cosmeticAnimations.enabled", true);
pref("toolkit.scrollbox.smoothScroll", true);
pref("toolkit.scrollbox.scrollIncrement", 20);
pref("toolkit.scrollbox.verticalScrollDistance", 3);
pref("toolkit.scrollbox.horizontalScrollDistance", 5);
pref("toolkit.scrollbox.clickToScroll.scrollDelay", 150);