Name Description Size
AccessibleMetrics.h generated from a11y.always_underline_links Bool tracking if the user has always underline links enabled in firefox. This metric was generated to correspond to the Legacy Telemetry scalar a11y.always_underline_links. 3730
AntitrackingBouncetrackingprotectionMetrics.h generated from bounce.tracking.protection.mode Records the pref value of privacy.bounceTrackingProtection.mode. Values are any of nsIBounceTrackingProtection#Modes. 4038
AntitrackingMetrics.h generated from contentblocking.canvas_fingerprinting_per_tab 15127
api
AsrouterMetrics.h generated from messaging_system.addon_version Used to hold the system addon's version, now is almost certainly an echo of the app's build id. 9592
AttributionMetrics.h 581
BackgroundhangmonitorMetrics.h 566
BackgroundtasksMetrics.h generated from background_tasks.rmdir.base.elapsed_ms The amount of time the task took for removing the directories. 5686
BackupMetrics.h generated from browser.backup.browser_extension_data_size The total size of the current profiles storage.local legacy JSON backend in the browser-extension-data directory, rounded to the nearest 10 kilobytes. 9175
BrowserActorsMetrics.h generated from fullscreen.change The time content uses to enter/exit fullscreen regardless of fullscreen transition timeout This metric was generated to correspond to the Legacy Telemetry exponential histogram FULLSCREEN_CHANGE_MS. 860
BrowserComponentsMetrics.h generated from background_update.reasons_to_not_update Records which error was causing the background updater to fail. This list supercedes the `background-update.reason` in `mozapps/update/metrics.yaml` 21418
BrowserContentMetrics.h generated from browser.engagement.bookmarks_toolbar_bookmark_added The count of bookmarks added to the bookmarks toolbar. This counts bookmarks created on the bookmarks toolbar and bookmarks moved to the bookmarks toolbar. This metric was generated to correspond to the Legacy Telemetry scalar browser.engagement.bookmarks_toolbar_bookmark_added. 14981
BrowserExtensionsSearchDetectionMetrics.h generated from addons.search_detection.etld_change_other 3727
BrowserModulesMetrics.h generated from browser.engagement.active_ticks The number of five-second intervals ('ticks') the user was considered 'active'. 'active' means keyboard or mouse interaction with the application. It doesn't take into account whether or not the window has focus or is in the foreground, only if it is receiving these interaction events. Migrated from Telemetry's `browser.engagement.active_ticks`. 42358
CaptchadetectionMetrics.h generated from captcha_detection.arkoselabs_oc Number of times the ArkoseLabs was loaded since last ping submission. 11830
ContentrelevancyMetrics.h generated from relevancy.classify.duration Record the duration (in ms) of a successful classification. 3459
CookiebannersMetrics.h generated from cookie.banners.google_gdpr_choice_cookie Records the GDPR choice on Google Search based on the "SOCS" cookie of the Google Search domains. The value could be "Accept", "Reject" or "Custom". We use the label to record different choices on different Google domains. We only collect this if the default search engine is Google. 4024
CrashesMetrics.h generated from crash.app_build The build id of the application. This may differ from `client_info` because a main process crash may be reported later by a different (e.g. updated) client. 10795
DevtoolsClientAccessibilityMetrics.h generated from devtools.accessibility.accessible_context_menu_item_activated Number of times a context menu item for an accessible object was activated (with mouse or keyboard) from the context menu opened in the accessibility tree. Keyed by the id of the context menu item. This metric was generated to correspond to the Legacy Telemetry scalar devtools.accessibility.accessible_context_menu_item_activated. 3268
DevtoolsClientFrameworkMetrics.h generated from devtools.cold_toolbox_open_delay Time taken (in ms) to open the first DevTools toolbox. This is keyed by tool ID being opened [inspector, webconsole, jsdebugger, styleeditor, performance, memory, netmonitor, storage, dom]. This metric was generated to correspond to the Legacy Telemetry exponential histogram DEVTOOLS_COLD_TOOLBOX_OPEN_DELAY_MS. 3683
DevtoolsClientInspectorMetrics.h generated from devtools.grid.gridinspector.opened Number of times the DevTools grid inspector was opened from the grid view. This metric was generated to correspond to the Legacy Telemetry scalar devtools.grid.gridinspector.opened. 6684
DevtoolsClientResponsiveMetrics.h generated from devtools.responsive.open_trigger Number of Responsive Design Mode opens keyed by the UI entry point used. This metric was generated to correspond to the Legacy Telemetry scalar devtools.responsive.open_trigger. 1237
DevtoolsClientSharedMetrics.h generated from devtools.accessibility.opened_count Number of times the DevTools Accessibility tool has been opened. This metric was generated to correspond to the Legacy Telemetry scalar devtools.accessibility.opened_count. 162444
DevtoolsSharedHeapsnapshotMetrics.h generated from devtools.heap_snapshot_edge_count The number of edges serialized into a heap snapshot. This metric was generated to correspond to the Legacy Telemetry linear histogram DEVTOOLS_HEAP_SNAPSHOT_EDGE_COUNT. 1974
DocshellMetrics.h generated from bfcache.combo 2324
DohMetrics.h generated from networking.doh_heuristic_ever_tripped True if this heuristic (key) was ever tripped during the session. This metric was generated to correspond to the Legacy Telemetry scalar networking.doh_heuristic_ever_tripped. 13992
DomCanvasMetrics.h generated from canvas.used_2d 2947
DomCryptoMetrics.h generated from webcrypto.alg Algorithms used with WebCrypto (see table in WebCryptoTask.cpp) This metric was generated to correspond to the Legacy Telemetry enumerated histogram WEBCRYPTO_ALG. 3427
DomGeolocationMetrics.h generated from geolocation.accuracy Accuracy returned by the Geolocation API 1816
DomLocalstorageMetrics.h generated from localstorage.database.new_object_setup_time Measures the time taken for the content process to fully set up a new database, including any time required for datastore preparation in the parent process. This duration can be significantly affected by datastore preloading, which is triggered when a page begins loading. If an error occurs, the time is not recorded. 2784
DomMediaEmeMetrics.h generated from mediadrm.decryption 2183
DomMediaHlsMetrics.h generated from hls.canplay_requested Record when a page requests canPlayType for a HLS media type. 1604
DomMediaMetrics.h generated from gmp.update_xml_fetch_result 17953
DomMediaMp4Metrics.h generated from media.mp4_parse.num_sample_description_entries Counts the number of entries in the sample description box (stsd) for a track in an mp4. Recorded each time we process a track's metadata while parsing mp4s. This metric was generated to correspond to the Legacy Telemetry enumerated histogram MEDIA_MP4_PARSE_NUM_SAMPLE_DESCRIPTION_ENTRIES. 2401
DomMediaPlatformsWmfMetrics.h generated from media.decoder_backend_used Media decoder backend (0=WMF Software, 1=DXVA2D3D9, 2=DXVA2D3D11) This metric was generated to correspond to the Legacy Telemetry enumerated histogram MEDIA_DECODER_BACKEND_USED. 4541
DomMediaWebrtcMetrics.h generated from codec.stats.audio_preferred_codec Counts the preferred audio codec being signaled to us to identify preferred audio codec. 30664
DomMetrics.h generated from glam_experiment.largest_contentful_paint Duplicate of: `perf.largest_contentful_paint` Intended for the purpose of testing client side sampling of data. This metric is disabled by default and will be enabled only for the purpose of the experiment. See Bug 1947604 for more information. 29952
DomNotificationMetrics.h generated from web_notification.icon_url_encoding 2326
DomPerformanceMetrics.h generated from performance.time.response_start Time from navigationStart to responseStart as per the W3C Performance Timing API. (Migrated from the geckoview metric of the same name.) 826
DomPowerMetrics.h generated from screenwakelock.held_duration How long a screen wake lock was held in ms This metric was generated to correspond to the Legacy Telemetry exponential histogram SCREENWAKELOCK_HELD_DURATION_MS. 1201
DomPushMetrics.h generated from web_push.api_notify Number of push messages that were successfully decrypted and delivered to a ServiceWorker. This metric was generated to correspond to the Legacy Telemetry count histogram PUSH_API_NOTIFY. 2034
DomQuotaMetrics.h generated from dom.quota.info_load_time Time (ms) for the QuotaManager to load quota information. Keyed by conditions during quota info loading, see RecordTimeDeltaHelper::Run in https://searchfox.org/mozilla-central/source/dom/quota/ActorsParent.cpp This metric was generated to correspond to the Legacy Telemetry exponential histogram QM_QUOTA_INFO_LOAD_TIME_V0. 7598
DomSecurityMetrics.h generated from security.csp_violation_internal_page 18846
DomServiceworkersMetrics.h generated from service_worker.fetch_event_channel_reset Time (in ms) measured between when the fetch handler finished executing and when we reset the network channel. This metric was generated to correspond to the Legacy Telemetry exponential histogram SERVICE_WORKER_FETCH_EVENT_CHANNEL_RESET_MS_2. 3889
DomStorageMetrics.h generated from localdomstorage.preload_pending_on_first_access 1430
DomUseCounterMetrics.h generated from use.counter.content_documents_destroyed A count of how many content documents were destroyed. Used to turn document use counters' counts into rates. Excludes documents for which we do not count use counters (See `Document::ShouldIncludeInTelemetry`). 692586
DomWebauthnMetrics.h generated from webauthn_create.authenticator_attachment 2287
DomWorkersMetrics.h generated from workers.dedicated_worker_spawn_gets_queued Tracking whether a DedicatedWorker spawn gets queued due to hitting max workers per domain limit. This metric was generated to correspond to the Legacy Telemetry count histogram DEDICATED_WORKER_SPAWN_GETS_QUEUED. 2017
DownloadsMetrics.h generated from downloads.panel_shown The count of how many times the downloads panel was shown per session. This metric was generated to correspond to the Legacy Telemetry scalar downloads.panel_shown. 2660
EditorLibeditorMetrics.h generated from htmleditors.overridden_by_beforeinput_listeners 3013
EnterprisepoliciesMetrics.h generated from policies.count A uint with the number of active enterprise policies, collected once at startup. This metric was generated to correspond to the Legacy Telemetry scalar policies.count. 1115
EventGIFFTMap.cpp This file is auto-generated by run_glean_parser.py. It is only for internal use by types in toolkit/components/glean/bindings/private 82247
ExtensionsMetrics.h generated from extensions_button.open_via_app_menu 22000
ExtensionsPermissionsMetrics.h generated from permissions.defective_sql_removed Record the removal of defective permissions.sqlite This metric was generated to correspond to the Legacy Telemetry count histogram DEFECTIVE_PERMISSIONS_SQL_REMOVED. 1146
FirefoxviewMetrics.h generated from firefoxview.cumulative_searches 15505
fog_ffi_generated.h Generated with cbindgen:0.28.0 14868
FormautofillMetrics.h generated from address.add_manage 79717
GeckoviewMetrics.h generated from geckoview.content_process_lifetime The uptime of content processes. (Migrated from the geckoview metric of the same name). 2898
GenaiMetrics.h generated from genai.chatbot.contextmenu_prompt_click 32949
GfxMetrics.h generated from performance.interaction.keypress_present_latency Time between receiving a keypress event in the event loop and compositing its result onto the screen. (Migrated from the geckoview metric of the same name). 31327
GleanJSMetricsLookup.cpp boolean 1563399
GleanJSMetricsLookup.h Create a submetric instance for a labeled metric of the provided type and id for the given label. Assigns or retrieves an id for the submetric from the SDK. @param aParentTypeId - The type of the parent labeled metric identified as a number generated during codegen. Only used to identify which X of LabeledX you are so that X can be created here. @param aParentMetricId - The metric id for the parent labeled metric. @param aLabel - The label for the submetric. Might not adhere to the SDK label format. @param aSubmetricId - an outparam which is assigned the submetric's SDK-generated submetric id. Used only by GIFFT. 2761
GleanJSPingsLookup.cpp 0 - "messagingSystem" 17850
GleanJSPingsLookup.h Get a ping's name given its entry in the PHF. 878
GleanMetrics.h generated from fog.failed_idle_registration True if we failed to register with the idle service. Absent otherwise. Means IPC probably isn't working well. Child-process data will likely be absent, or incomplete. 3083
GleanPings.h Generated from messaging-system. This is a ping representing single events triggered by the messaging system and captures some pings from About:Welcome, ASRouter, and other corners. 15563
GleanTestsTestMetrics.h generated from test_only.bad_code Number of times we encountered bad code. This is a test-only metric. 19699
HistogramGIFFTMap.cpp This file is auto-generated by run_glean_parser.py. It is only for internal use by types in toolkit/components/glean/bindings/private 125433
ImageDecodersMetrics.h generated from avif.a1lx 12756
IntlLocaleMetrics.h generated from intl.accept_languages The languages for the Accept-Languages header. 1476
IpcMetrics.h generated from ipc.transaction_cancel 3015
jog_ffi_generated.h Generated with cbindgen:0.28.0 5875
JsXpconnectMetrics.h generated from javascript.gc.animation Time spent running JS GC when animating. 23018
LayoutMetrics.h generated from layout.input_event_queued_click Time (ms) for the mouse up/down event to dispatch, but before handlers executing. This metric was generated to correspond to the Legacy Telemetry exponential histogram INPUT_EVENT_QUEUED_CLICK_MS. 4643
LibjarMetrics.h generated from zero_byte_load.load_css 22961
LibprefMetrics.h generated from security.pref_usage_content_process 1889
MediasnifferMetrics.h generated from media_sniffer.mp4_brand_pattern 1192
MessagingSystemMetrics.h generated from messaging_experiments.reach_cfr 26735
MigrationMetrics.h generated from browser.migration.bookmarks_quantity How many bookmarks we imported from another browser, keyed by the name of the browser. This metric was generated to correspond to the Legacy Telemetry exponential histogram FX_MIGRATION_BOOKMARKS_QUANTITY. 17358
MlMetrics.h generated from firefox.ai.runtime.engine_creation_failure 15286
NetwerkCache2Metrics.h generated from network.cache_entry_count 5472
NetwerkDnsMetrics.h generated from dns.blocklist_count The number of unusable addresses reported for each record This metric was generated to correspond to the Legacy Telemetry linear histogram DNS_BLACKLIST_COUNT. 10416
NetwerkMetrics.h generated from networking.cache_metadata_first_read_time Time spent to read the first part of the metadata from the cache entry file. 70419
NetwerkProtocolHttpMetrics.h generated from networking.connection_address_type 68063
NetwerkProtocolWebsocketMetrics.h generated from websockets.handshake_type Websockets Handshake Results (ws-ok-plain, ws-ok-proxy, ws-failed-plain, ws-failed-proxy, wss-ok-plain, wss-ok-proxy, wss-failed-plain, wss-failed-proxy) This metric was generated to correspond to the Legacy Telemetry enumerated histogram WEBSOCKETS_HANDSHAKE_TYPE. 978
NewtabMetrics.h generated from activity_stream.end_session 183682
NimbusMetrics.h generated from heartbeat.closed When the Heartbeat notification bar was closed. 23744
NormandyMetrics.h generated from normandy.enroll_addon_rollout 56309
ParserHtmlMetrics.h generated from parsing.svg_unusual_pcdata The rate of svg elements that have child elements during parsing, where their HTML counterpart would not have children. 773
ParserHtmlparserMetrics.h generated from ysod.shown_ysod 2763
PasswordmgrMetrics.h generated from form_autocomplete.show_logins 54558
PdfjsMetrics.h generated from glam_experiment.used Duplicate of: `pdfjs.used` Intended for the purpose of testing client side sampling of data. This metric is disabled by default and will be enabled only for the purpose of the experiment. See Bug 1947604 for more information. 23469
PictureinpictureMetrics.h generated from pictureinpicture.background_tab_playing_duration The length of time (in seconds) that a video was in Picture-in-Picture mode in a background tab. This metric was generated to correspond to the Legacy Telemetry exponential histogram FX_PICTURE_IN_PICTURE_BACKGROUND_TAB_PLAYING_DURATION. 21087
PlacesMetrics.h generated from bookmarks_sidebar.cumulative_searches Cumulative no. bookmark of searches performed before selecting a link. This metric was generated to correspond to the Legacy Telemetry enumerated histogram PLACES_BOOKMARKS_SEARCHBAR_CUMULATIVE_SEARCHES. 12223
PocketMetrics.h generated from pocket.button.event_action The action that was taken, like "click" or... actually, it might only ever be "click". 2312
PreferencesMetrics.h generated from aboutpreferences.show_click 17750
PrintingMetrics.h generated from printing.dialog_opened_via_preview_tm A counter incremented every time a user opens the system print dialog from the print preview interface. This metric was generated to correspond to the Legacy Telemetry scalar printing.dialog_opened_via_preview_tm. 4682
PrivatebrowsingMetrics.h generated from aboutprivatebrowsing.click_dismiss_button 3151
ProcesstoolsMetrics.h generated from glam_experiment.cpu_time_bogus_values Duplicate of: `power.cpu_time_bogus_values` Intended for the purpose of testing client side sampling of data. This metric is disabled by default and will be enabled only for the purpose of the experiment. See Bug 1947604 for more information. 36531
ProfilesMetrics.h generated from profiles.default.updated 9826
ProtectionsMetrics.h generated from security.ui.protections.click_lw_about_link 17533
ProtocolhandlerMetrics.h generated from protocolhandler.mailto.handler_prompt_shown 1563
ReaderMetrics.h generated from readermode.button_click 4267
ReportbrokensiteMetrics.h generated from broken_site_report.breakage_category An optional select-box choice (options may eventually change) 11226
ReputationserviceMetrics.h generated from application_reputation.binary_archive 6211
ResistfingerprintingMetrics.h generated from characteristics.any_pointer_type Union of pointers available. We apply union to determine if the user have both coarse and fine pointer. 51585
SatchelMegalistMetrics.h generated from contextual_manager.notification_interaction 7915
ScalarGIFFTMap.cpp This file is auto-generated by run_glean_parser.py. It is only for internal use by types in toolkit/components/glean/bindings/private 48768
ScreenshotsMetrics.h generated from screenshots.canceled_context_menu 14579
SearchMetrics.h generated from newtab.search.issued 66464
SecurityCertverifierMetrics.h generated from cert_signature_cache.hits How often a certificate signature to be verified is in the cache already. 2833
SecurityCtMetrics.h generated from sct_signature_cache.hits How often an SCT signature to be verified is in the cache already. 886
SecurityManagerSslMetrics.h generated from networking.loading_certs_task The time in milliseconds to load any external certificates. This occurs off of the main-thread, but can block main-thread operations. This metric was generated to correspond to the Legacy Telemetry scalar networking.loading_certs_task. 29695
SecuritySandboxMetrics.h generated from sandbox.content_win32k_lockdown_state The current win32k.sys lockdown state. Possible values are defined in the ContentWin32kLockdownState enum. Reported even on non-Windows machines. 2777
ServicesCommonMetrics.h generated from uptake.remotecontent.result.uptake_normandy 4835
ServicesFxaccountsMetrics.h generated from client_association.legacy_client_id The legacy Telemetry client ID associated with this user profile. 5190
ServicesSyncModulesMetrics.h generated from deletion.request.sync_device_id An identifier used by sync ping, to identify the current Firefox profile for a specific Account. This metric was generated to correspond to the Legacy Telemetry scalar deletion.request.sync_device_id. 42949
SessionstoreMetrics.h generated from browser.engagement.sessionrestore_interstitial Whether we show about:sessionrestore or not. Split by key, which indicates why we showed the item or not. Specifically, 'deferred_restore' means we didn't autorestore and thus didn't show the interstitial; 'autorestore' indicates we autorestored without showing the interstitial. 'shown_old_session', 'shown_only_about_welcomeback', 'shown_many_crashes', 'shown_many_crashes_old_session' all indicate we did show the interstitial because of a crash, and the text after 'shown' indicates what secondary reason there was to show this page (as we don't show it for 'just' one crash). This metric was generated to correspond to the Legacy Telemetry scalar browser.engagement.sessionrestore_interstitial. 10612
SidebarMetrics.h generated from bookmarks.sidebar_toggle 20883
StartupcacheMetrics.h generated from startup_cache.requests 986
StartupMetrics.h generated from timestamps.first_paint Record the timestamp of the first content window paint, in milliseconds since process start. This metric was generated to correspond to the Legacy Telemetry scalar timestamps.first_paint. 1199
TabbrowserMetrics.h generated from browser.engagement.tab_explicit_unload 21286
TelemetryMetrics.h generated from browser.engagement.session_time_excluding_suspend The duration of the session in milliseconds, excluding the time the device was suspended. This metric was generated to correspond to the Legacy Telemetry scalar browser.engagement.session_time_excluding_suspend. 18571
TelemetryTestsTestMetrics.h generated from telemetry.test.test1_object1 3726
TextrecognitionMetrics.h generated from browser.ui.interaction.textrecognition_error Recorded when text recognition in images fails for some unknown reason. This metric was generated to correspond to the Legacy Telemetry scalar browser.ui.interaction.textrecognition_error. 1951
ThumbnailsMetrics.h generated from thumbnails.capture_canvas_draw_time BACKGROUND THUMBNAILS: Time it took to draw the capture's window to canvas (ms) This metric was generated to correspond to the Legacy Telemetry exponential histogram FX_THUMBNAILS_BG_CAPTURE_CANVAS_DRAW_TIME_MS. 2959
ToolkitContentMetrics.h generated from findbar.find_next The count of how many times the find next button was used per session. This metric was generated to correspond to the Legacy Telemetry scalar findbar.find_next. 27024
ToolkitContentWidgetsMetrics.h generated from browser.ui.interaction.keyboard Records a count of interactions with keyboard shortcuts. See https://firefox-source- docs.mozilla.org/browser/BrowserUsageTelemetry.html This metric was generated to correspond to the Legacy Telemetry scalar browser.ui.interaction.keyboard. 968
ToolkitModulesGeckoMetrics.h generated from mozstorage.sqlitejsm_transaction_timeout Collection of javascript modules that created a Sqlite.sys.mjs transaction taking too long and timing out. This can be used to identify and optimize those modules transactions. This metric was generated to correspond to the Legacy Telemetry scalar mozstorage.sqlitejsm_transaction_timeout. 2687
ToolkitModulesMetrics.h generated from os.environment.allowed_app_sources Indicates what sources the OS is currently configured to allow apps to be installed from. Possible values are "Anywhere", "Recommendations", "PreferStore", "StoreOnly", "NoSuchFeature", or "Error". "Recommendations" allows installs from anywhere, but recommends a comparable app from the store, if available. "NoSuchFeature" will be reported on versions of Windows that do not have an app source setting. This metric was generated to correspond to the Legacy Telemetry scalar os.environment.allowed_app_sources. 7503
ToolkitMozappsDefaultagentMetrics.h generated from defaultagent.days_since_last_app_launch Number of days since the app last launched. Once this reaches 90 days, the installation will stop running the default browser agent. 5305
ToolkitMozappsExtensionsMetrics.h generated from addons_manager.compatibility_check_enabled Whether application compatibility is enforced for add-ons. 18005
ToolkitMozappsExtensionsMetricsLegacy.h generated from addons_manager.disable_dictionary 111075
ToolkitMozappsHandlingMetrics.h generated from protocolhandler.mailto.visit 1328
ToolkitMozappsUpdateBackgroundTaskMetrics.h generated from background_update.automatic_restart_attempted True if the background update task successfully attempted an automatic restart. 6718
ToolkitMozappsUpdateMetrics.h generated from update.bits_result_complete Update: Result code from downloading a complete update via BITS This metric was generated to correspond to the Legacy Telemetry enumerated histogram UPDATE_BITS_RESULT_COMPLETE. 31958
ToolkitMozappsUpdateSharedMetrics.h generated from update.bitshresult If a BITS download fails on the Windows side (that is to say, BITS ecounters an error rather than Firefox failing to interact with BITS), it will likely give an hresult error indicating what happened. This probe reports those error codes to allow us to see if BITS is commonly failing on some systems. This probe is keyed on the type of update download, either "PARTIAL" or "COMPLETE". This metric was generated to correspond to the Legacy Telemetry scalar update.bitshresult. 3518
ToolkitProfileMetrics.h generated from startup.profile_count This records the number of known profiles after startup completes. This includes any profiles that were created during startup. This metric was generated to correspond to the Legacy Telemetry scalar startup.profile_count. 4243
ToolkitXreMetrics.h generated from os.environment.is_admin_without_uac Indicates that the process is lauched with Admin privileges but without UAC. This metric was generated to correspond to the Legacy Telemetry scalar os.environment.is_admin_without_uac. 2573
TranslationsMetrics.h generated from translations.engine_performance 40386
UrlbarMetrics.h generated from quick_suggest.advertiser The name of the advertiser providing the sponsored TopSite. 24954
UrlClassifierMetrics.h generated from urlclassifier.async_classifylocal_time Time spent per AsyncClassifyLocalWithTables (ms) This metric was generated to correspond to the Legacy Telemetry exponential histogram URLCLASSIFIER_ASYNC_CLASSIFYLOCAL_TIME. 9064
WidgetCocoaMetrics.h generated from widget.ime_name_on_mac Name of IME which was selected by users on macOS. The value is Input Source ID if non-Japanese IME was open. Otherwise, if Japanese IME was open, the value is Bundle ID. Input Source ID includes input mode, but Bundle ID does not include input mode. This metric was generated to correspond to the Legacy Telemetry scalar widget.ime_name_on_mac. 1028
WidgetGtkMetrics.h generated from widget.gtk_version The version of Gtk 3 in use. This metric was generated to correspond to the Legacy Telemetry scalar widget.gtk_version. 1275
WidgetMetrics.h generated from gfx.content_backend The content backend (e.g. "Direct2D 1.1", "Skia", "Cairo"). 2659
WidgetWindowsMetrics.h generated from widget.ime_name_on_windows Locale ID and name of IME which was selected by users on Windows. This does NOT collect legacy IMM-IME names since we cannot get readable names and we do not support IMM-IME so aggressively because IME vendors should've already released TIP for TSF for supporting Windows 8 or later completely. This metric was generated to correspond to the Legacy Telemetry scalar widget.ime_name_on_windows. 2532
XpcomMetrics.h generated from memory.collection_time Time spent gathering memory telemetry in milliseconds This metric was generated to correspond to the Legacy Telemetry exponential histogram MEMORY_COLLECTION_TIME. 22660