# 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/. # Adding a new metric? We have docs for that! # https://firefox-source-docs.mozilla.org/toolkit/components/glean/user/new_definitions_file.html --- $schema: moz://mozilla.org/schemas/glean/metrics/2-0-0 $tags: - 'Core :: DOM: Core & HTML' perf: largest_contentful_paint: type: timing_distribution time_unit: millisecond description: > Time from navigation start to largest contentful paint. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1862939 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1862939#c5 notification_emails: - perf-telemetry-alerts@mozilla.com expires: never telemetry_mirror: PERF_LARGEST_CONTENTFUL_PAINT_MS largest_contentful_paint_from_response_start: type: timing_distribution time_unit: millisecond description: > Time from response start to largest contentful paint. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1862939 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1862939#c5 notification_emails: - perf-telemetry-alerts@mozilla.com expires: never telemetry_mirror: PERF_LARGEST_CONTENTFUL_PAINT_FROM_RESPONSE_START_MS page_load: type: event description: > Recorded when a top level content document has been loaded. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1759744 - https://bugzilla.mozilla.org/show_bug.cgi?id=1799727 - https://bugzilla.mozilla.org/show_bug.cgi?id=1834774 - https://bugzilla.mozilla.org/show_bug.cgi?id=1862939 - https://bugzilla.mozilla.org/show_bug.cgi?id=1892231 - https://bugzilla.mozilla.org/show_bug.cgi?id=1923894 - https://bugzilla.mozilla.org/show_bug.cgi?id=1954216 - https://bugzilla.mozilla.org/show_bug.cgi?id=1949038 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1759744#c5 - https://bugzilla.mozilla.org/show_bug.cgi?id=1799727#c4 - https://bugzilla.mozilla.org/show_bug.cgi?id=1834774#c3 - https://bugzilla.mozilla.org/show_bug.cgi?id=1862939#c5 - https://bugzilla.mozilla.org/show_bug.cgi?id=1892231#c3 notification_emails: - perf-telemetry-alerts@mozilla.com - dpalmeiro@mozilla.com expires: never extra_keys: load_time: description: "Time between loadEventStart and navigationStart, in ms." type: quantity unit: ms dns_lookup_time: description: "Time taken to perform dns lookup of the top level document, in ms." type: quantity unit: ms time_to_request_start: description: "Time between requestStart and navigationStart, in ms." type: quantity unit: ms response_time: description: "Time between responseStart and navigationStart, in ms." type: quantity unit: ms fcp_time: description: "Time between firstContentfulPaint and navigationStart, in ms." type: quantity unit: ms lcp_time: description: "Time between largestContentfulPaint and navigationStart, at the point of onLoad firing, in ms. This may differ from the final LCP value as reported through the LCP histogram." type: quantity unit: ms js_exec_time: description: "Time spent executing JS during page load, in ms." type: quantity unit: ms redirect_time: type: quantity description: "Time spent in redirections for the top level document." unit: ms tls_handshake_time: type: quantity description: "Time spent in TLS handshake for the top level document." unit: ms redirect_count: description: "Number of redirections for the top level document." type: quantity unit: integer load_type: description: "One of normal,reload,stop,link,history,error or other." type: string same_origin_nav: description: "If true, a normal navigation was performed on the same origin." type: boolean using_webdriver: description: "If true, a webdriver is running on the client." type: boolean http_ver: description: "Version of HTTP protocol used." type: quantity unit: integer trr_domain: description: "TRR domain used." type: string features: description: "Bitfield of features in use within this document: 1 - fetchpriority applied to images 2 - assistive technology in use" type: quantity unit: integer has_ssd: description: "Whether the user has SSD in their hardware or not. Only available on Windows, after startup-idle-tasks are done" type: boolean send_in_pings: - pageload http3_page_load_time: type: labeled_timing_distribution description: > Time in milliseconds from navigationStart to loadEventStart for the foreground http or https root content document. This is collected only on page load where the main document uses or suppports HTTP3 This metric was generated to correspond to the Legacy Telemetry exponential histogram HTTP3_PERF_PAGE_LOAD_TIME_MS. time_unit: millisecond bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1675503 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1675503 notification_emails: - necko@mozilla.com expires: never telemetry_mirror: HTTP3_PERF_PAGE_LOAD_TIME_MS http3_first_contentful_paint: type: labeled_timing_distribution description: > The time between navigationStart and the first contentful paint of a foreground http or https root content document, in milliseconds. The contentful paint timestamp is taken during display list building and does not include rasterization or compositing of that paint. This is collected only on page load where the main document uses or suppports HTTP3 This metric was generated to correspond to the Legacy Telemetry exponential histogram HTTP3_PERF_FIRST_CONTENTFUL_PAINT_MS. time_unit: millisecond bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1675503 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1675503 notification_emails: - necko@mozilla.com expires: never telemetry_mirror: HTTP3_PERF_FIRST_CONTENTFUL_PAINT_MS h3p_page_load_time: type: labeled_timing_distribution description: > Time in milliseconds from navigationStart to loadEventStart for the foreground http or https root content document. This is collected only on page load where the main document uses HTTP3. It is keyed based on whether a "priority" header has been received. This metric was generated to correspond to the Legacy Telemetry exponential histogram H3P_PERF_PAGE_LOAD_TIME_MS. time_unit: millisecond bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1743965 - https://bugzilla.mozilla.org/show_bug.cgi?id=1796398 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1743965 - https://bugzilla.mozilla.org/show_bug.cgi?id=1796398 notification_emails: - necko@mozilla.com expires: never telemetry_mirror: H3P_PERF_PAGE_LOAD_TIME_MS h3p_first_contentful_paint: type: labeled_timing_distribution description: > The time between navigationStart and the first contentful paint of a foreground http or https root content document, in milliseconds. The contentful paint timestamp is taken during display list building and does not include rasterization or compositing of that paint. This is collected only on page load where the main document uses HTTP3. It is keyed based on whether a "priority" header has been received. This metric was generated to correspond to the Legacy Telemetry exponential histogram H3P_PERF_FIRST_CONTENTFUL_PAINT_MS. time_unit: millisecond bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1743965 - https://bugzilla.mozilla.org/show_bug.cgi?id=1796398 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1743965 - https://bugzilla.mozilla.org/show_bug.cgi?id=1796398 notification_emails: - necko@mozilla.com expires: never telemetry_mirror: H3P_PERF_FIRST_CONTENTFUL_PAINT_MS dns_first_contentful_paint: type: labeled_timing_distribution description: > The time between navigationStart and the first contentful paint of a foreground http or https root content document, in milliseconds. The contentful paint timestamp is taken during display list building and does not include rasterization or compositing of that paint. Keyed by TRR domain for DoH or 'Native' otherwise This metric was generated to correspond to the Legacy Telemetry exponential histogram DNS_PERF_FIRST_CONTENTFUL_PAINT_MS. time_unit: millisecond bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1796639 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1796639 notification_emails: - necko@mozilla.com - acreskey@mozilla.com expires: never telemetry_mirror: DNS_PERF_FIRST_CONTENTFUL_PAINT_MS dns_first_byte: type: labeled_timing_distribution description: > The time from a top-level document's HTTP channel open to the first byte of the reply is received (ms). Keyed by TRR domain for DoH or 'Native' otherwise This metric was generated to correspond to the Legacy Telemetry exponential histogram DNS_PERF_FIRST_BYTE_MS. time_unit: millisecond bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1803671 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1803671 notification_emails: - necko@mozilla.com - acreskey@mozilla.com expires: never telemetry_mirror: DNS_PERF_FIRST_BYTE_MS performance.pageload: load_time: type: timing_distribution time_unit: millisecond telemetry_mirror: PERF_PAGE_LOAD_TIME_MS description: > Time in milliseconds from navigationStart to loadEventStart for the foreground http or https root content document. (Migrated from the geckoview metric of the same name). bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1671729 - https://bugzilla.mozilla.org/show_bug.cgi?id=1877842 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1671729#c7 notification_emails: - dpalmeiro@mozilla.com - perf-telemetry-alerts@mozilla.com expires: never load_time_responsestart: type: timing_distribution time_unit: millisecond telemetry_mirror: PERF_PAGE_LOAD_TIME_FROM_RESPONSESTART_MS description: > Time in milliseconds from responseStart to loadEventStart for the foreground http or https root content document. (Migrated from the geckoview metric of the same name). bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1671729 - https://bugzilla.mozilla.org/show_bug.cgi?id=1877842 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1671729#c7 notification_emails: - dpalmeiro@mozilla.com - perf-telemetry-alerts@mozilla.com expires: never fcp: type: timing_distribution time_unit: millisecond telemetry_mirror: PERF_FIRST_CONTENTFUL_PAINT_MS description: > The time between navigationStart and the first contentful paint of a foreground http or https root content document, in milliseconds. The contentful paint timestamp is taken during display list building and does not include rasterization or compositing of that paint. (Migrated from the geckoview metric of the same name). bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1671729 - https://bugzilla.mozilla.org/show_bug.cgi?id=1877842 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1671729#c7 notification_emails: - dpalmeiro@mozilla.com - perf-telemetry-alerts@mozilla.com expires: never fcp_responsestart: type: timing_distribution time_unit: millisecond telemetry_mirror: PERF_FIRST_CONTENTFUL_PAINT_FROM_RESPONSESTART_MS description: > The time between responseStart and the first contentful paint of a foreground http or https root content document, in milliseconds. The contentful paint timestamp is taken during display list building and does not include rasterization or compositing of that paint. (Migrated from the geckoview metric of the same name). bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1671729 - https://bugzilla.mozilla.org/show_bug.cgi?id=1877842 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1671729#c7 notification_emails: - dpalmeiro@mozilla.com - perf-telemetry-alerts@mozilla.com expires: never http3_fcp_http3: &http3_fcp_http3 type: timing_distribution time_unit: millisecond description: > The time between navigationStart and the first contentful paint of a foreground http or https root content document, in milliseconds. The contentful paint timestamp is taken during display list building and does not include rasterization or compositing of that paint. This is collected only on page load where the main document uses or suppports HTTP3. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1675503 - https://bugzilla.mozilla.org/show_bug.cgi?id=1898245 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1898245 notification_emails: - necko@mozilla.com - perf-telemetry-alerts@mozilla.com expires: never http3_fcp_supports_http3: <<: *http3_fcp_http3 description: > The time between navigationStart and the first contentful paint of a foreground http or https root content document, in milliseconds. The contentful paint timestamp is taken during display list building and does not include rasterization or compositing of that paint. This is collected only on page load where the main document supports but is not using HTTP3. h3p_fcp_with_priority: &h3p_fcp_with_priority type: timing_distribution time_unit: millisecond description: > The time between navigationStart and the first contentful paint of a foreground http or https root content document, in milliseconds. The contentful paint timestamp is taken during display list building and does not include rasterization or compositing of that paint. This is collected only on page load where the main document uses HTTP3. A "priority" header has been received. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1743965 - https://bugzilla.mozilla.org/show_bug.cgi?id=1796398 - https://bugzilla.mozilla.org/show_bug.cgi?id=1898245 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1898245 notification_emails: - necko@mozilla.com - perf-telemetry-alerts@mozilla.com expires: never http3_fcp_without_priority: <<: *h3p_fcp_with_priority description: > The time between navigationStart and the first contentful paint of a foreground http or https root content document, in milliseconds. The contentful paint timestamp is taken during display list building and does not include rasterization or compositing of that paint. This is collected only on page load where the main document uses HTTP3. A "priority" header has not been received. performance.time: dom_interactive: type: timing_distribution time_unit: millisecond telemetry_mirror: TIME_TO_DOM_INTERACTIVE_MS description: > Time from navigationStart to domInteractive as per the W3C Performance Timing API. (Migrated from the geckoview metric of the same name.) bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1344893 - https://bugzilla.mozilla.org/show_bug.cgi?id=1489524 - https://bugzilla.mozilla.org/show_bug.cgi?id=1580077 - https://bugzilla.mozilla.org/show_bug.cgi?id=1877842 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1580077#c10 notification_emails: - vgosu@mozilla.com - perf-telemetry-alerts@mozilla.com expires: never dom_content_loaded_start: type: timing_distribution time_unit: millisecond telemetry_mirror: TIME_TO_DOM_CONTENT_LOADED_START_MS description: > Time from navigationStart to domContentLoadedEventStart as per the W3C Performance Timing API. (Migrated from the geckoview metric of the same name.) bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1344893 - https://bugzilla.mozilla.org/show_bug.cgi?id=1580077 - https://bugzilla.mozilla.org/show_bug.cgi?id=1877842 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1580077#c10 notification_emails: - perf-telemetry-alerts@mozilla.com - bdekoz@mozilla.com expires: never dom_content_loaded_end: type: timing_distribution time_unit: millisecond telemetry_mirror: TIME_TO_DOM_CONTENT_LOADED_END_MS description: > Time from navigationStart to domContentLoadedEventEnd as per the W3C Performance Timing API. (Migrated from the geckoview metric of the same name.) bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1344893 - https://bugzilla.mozilla.org/show_bug.cgi?id=1489524 - https://bugzilla.mozilla.org/show_bug.cgi?id=1580077 - https://bugzilla.mozilla.org/show_bug.cgi?id=1877842 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1580077#c10 notification_emails: - vchin@mozilla.com - perf-telemetry-alerts@mozilla.com expires: never dom_complete: type: timing_distribution time_unit: millisecond telemetry_mirror: TIME_TO_DOM_COMPLETE_MS description: > Time from navigationStart to domComplete as per the W3C Performance Timing API. (Migrated from the geckoview metric of the same name.) bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1344893 - https://bugzilla.mozilla.org/show_bug.cgi?id=1489524 - https://bugzilla.mozilla.org/show_bug.cgi?id=1580077 - https://bugzilla.mozilla.org/show_bug.cgi?id=1877842 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1580077#c10 notification_emails: - vgosu@mozilla.com - perf-telemetry-alerts@mozilla.com expires: never load_event_start: type: timing_distribution time_unit: millisecond telemetry_mirror: TIME_TO_LOAD_EVENT_START_MS description: > Time from navigationStart to loadEventStart as per the W3C Performance Timing API. (Migrated from the geckoview metric of the same name.) bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1344893 - https://bugzilla.mozilla.org/show_bug.cgi?id=1580077 - https://bugzilla.mozilla.org/show_bug.cgi?id=1877842 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1580077#c10 notification_emails: - perf-telemetry-alerts@mozilla.com - bdekoz@mozilla.com expires: never load_event_end: type: timing_distribution time_unit: millisecond telemetry_mirror: TIME_TO_LOAD_EVENT_END_MS description: > Time from navigationStart to loadEventEnd as per the W3C Performance Timing API. (Migrated from the geckoview metric of the same name.) bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1344893 - https://bugzilla.mozilla.org/show_bug.cgi?id=1489524 - https://bugzilla.mozilla.org/show_bug.cgi?id=1580077 - https://bugzilla.mozilla.org/show_bug.cgi?id=1877842 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1580077#c10 notification_emails: - vchin@mozilla.com - perf-telemetry-alerts@mozilla.com expires: never to_first_contentful_paint: type: timing_distribution description: > The time between navigation start and the first contentful paint of a foreground root content document, in milliseconds. This only records documents that were in an active docshell throughout the whole time between navigation start and contentful paint. The contentful paint timestamp is taken during display list building and does not include rasterization or compositing of that paint. This metric was generated to correspond to the Legacy Telemetry exponential histogram TIME_TO_FIRST_CONTENTFUL_PAINT_MS. time_unit: millisecond bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1515132 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1515132 notification_emails: - perf-telemetry-alerts@mozilla.com expires: never telemetry_mirror: TIME_TO_FIRST_CONTENTFUL_PAINT_MS to_dom_loading: type: timing_distribution description: > Time in milliseconds from navigationStart to domLoading. This metric was generated to correspond to the Legacy Telemetry exponential histogram TIME_TO_DOM_LOADING_MS. time_unit: millisecond bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1344893 - https://bugzilla.mozilla.org/show_bug.cgi?id=1489524 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1344893 - https://bugzilla.mozilla.org/show_bug.cgi?id=1489524 notification_emails: - vgosu@mozilla.com - necko@mozilla.com expires: never telemetry_mirror: TIME_TO_DOM_LOADING_MS performance.page: non_blank_paint: type: timing_distribution time_unit: millisecond telemetry_mirror: TIME_TO_NON_BLANK_PAINT_MS description: > The time between navigationStart and the first non-blank paint of a foreground root content document, in milliseconds. This only records documents that were in an active docshell throughout the whole time between navigation start and non-blank paint. The non-blank paint timestamp is taken during display list building and does not include rasterization or compositing of that paint. (Migrated from the geckoview metric of the same name.) bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1307242 - https://bugzilla.mozilla.org/show_bug.cgi?id=1489524 - https://bugzilla.mozilla.org/show_bug.cgi?id=1580077 - https://bugzilla.mozilla.org/show_bug.cgi?id=1877842 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1580077#c10 notification_emails: - vchin@mozilla.com - perf-telemetry-alerts@mozilla.com expires: never javascript.pageload: execution_time: type: timing_distribution time_unit: millisecond telemetry_mirror: JS_PAGELOAD_EXECUTION_MS description: > Time spent during page load executing Javascript in ms. (Migrated from the geckoview metric of the same name.) bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1709139 - https://bugzilla.mozilla.org/show_bug.cgi?id=1877843 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1709139#c4 notification_emails: - dpalmeiro@mozilla.com - perf-telemetry-alerts@mozilla.com expires: never delazification_time: type: timing_distribution time_unit: millisecond telemetry_mirror: JS_PAGELOAD_DELAZIFICATION_MS description: > Time spent during page load delazifying Javascript in ms. (Migrated from the geckoview metric of the same name.) bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1709139 - https://bugzilla.mozilla.org/show_bug.cgi?id=1877843 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1709139#c4 notification_emails: - dpalmeiro@mozilla.com - perf-telemetry-alerts@mozilla.com expires: never xdr_encode_time: type: timing_distribution time_unit: millisecond telemetry_mirror: JS_PAGELOAD_XDR_ENCODING_MS description: > Time spent during page load XDR encoding Javascript in ms. (Migrated from the geckoview metric of the same name.) bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1709139 - https://bugzilla.mozilla.org/show_bug.cgi?id=1877843 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1709139#c4 notification_emails: - dpalmeiro@mozilla.com - perf-telemetry-alerts@mozilla.com expires: never baseline_compile_time: type: timing_distribution time_unit: millisecond telemetry_mirror: JS_PAGELOAD_BASELINE_COMPILE_MS description: > Time spent during page load baseline compiling Javascript in ms. (Migrated from the geckoview metric of the same name.) bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1709139 - https://bugzilla.mozilla.org/show_bug.cgi?id=1877843 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1709139#c4 notification_emails: - dpalmeiro@mozilla.com - perf-telemetry-alerts@mozilla.com expires: never gc_time: type: timing_distribution time_unit: millisecond telemetry_mirror: JS_PAGELOAD_GC_MS description: > Time spent during page load in the GC in ms. (Migrated from the geckoview metric of the same name.) bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1709139 - https://bugzilla.mozilla.org/show_bug.cgi?id=1877843 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1709139#c4 notification_emails: - dpalmeiro@mozilla.com - perf-telemetry-alerts@mozilla.com expires: never parse_time: type: timing_distribution time_unit: millisecond telemetry_mirror: JS_PAGELOAD_PARSE_MS description: > Time spent during page load syntax parsing JS scripts on the main thread in ms. (Migrated from the geckoview metric of the same name.) bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1709139 - https://bugzilla.mozilla.org/show_bug.cgi?id=1877843 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1709139#c4 notification_emails: - dpalmeiro@mozilla.com - perf-telemetry-alerts@mozilla.com expires: never protect_time: type: timing_distribution time_unit: millisecond telemetry_mirror: JS_PAGELOAD_PROTECT_MS description: > Time spent during page load protecting JIT executable memory. (Migrated from the geckoview metric of the same name.) bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1709139 - https://bugzilla.mozilla.org/show_bug.cgi?id=1877843 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1709139#c4 notification_emails: - dpalmeiro@mozilla.com - perf-telemetry-alerts@mozilla.com expires: never security: fission_principals: type: event description: > When running with Fission, we received an unexpected principal from the content process. Expected values for this telemetry event are the method names in ContentParent that received the unexpected principal. This event was generated to correspond to the Legacy Telemetry event security.fissionPrincipals#contentParent. bugs: - https://bugzil.la/1687891 data_reviews: - https://bugzil.la/1687891 notification_emails: - tom@mozilla.com - ckerschb@mozilla.com expires: never extra_keys: value: description: > The `value` of the event. Mirrors to the Legacy Telemetry event's `value` parameter. type: string principalType: description: > The type of principal that was received. Expected values for this field are NullPtr SystemPrincipal ExpandedPrincipal ContentPrincipal Unknown type: string scheme: description: > If the principal is a ContentPrincipal, we also collect the scheme type: string telemetry_mirror: Security_Fissionprincipals_Contentparent shadowed_html_document_property_access: type: event description: > When accessing a property on the HTMLDocument like (document.currentScript), if that property was shadowed/"clobbered" (e.g. using ), the name of the shadowed built-in property is collected. bugs: - https://bugzil.la/1955578 data_reviews: - https://bugzil.la/1955578 notification_emails: - tschuster@mozilla.com expires: 145 extra_keys: name: description: > Name of the shadowed HTML property that was accessed. type: string dom.contentprocess: build_id_mismatch: type: counter description: > The number of times the about:restartrequired page appeared due to a buildID mismatch between the parent and the content processes. This metric was generated to correspond to the Legacy Telemetry scalar dom.contentprocess.buildID_mismatch. bugs: - https://bugzil.la/1366808 data_reviews: - https://bugzil.la/1366808 notification_emails: - spohl@mozilla.com expires: never telemetry_mirror: DOM_CONTENTPROCESS_BUILDID_MISMATCH build_id_mismatch_false_positive: type: counter description: > The number of times a process crashed early but we could verify it was not because of buildID mismatch between the parent and the content processes. This metric was generated to correspond to the Legacy Telemetry scalar dom.contentprocess.buildID_mismatch_false_positive. bugs: - https://bugzil.la/1651133 - https://bugzil.la/1730045 - https://bugzil.la/1754658 - https://bugzil.la/1777404 - https://bugzil.la/1817104 - https://bugzil.la/1866197 - https://bugzil.la/1928259 data_reviews: - https://bugzil.la/1651133 - https://bugzil.la/1730045 - https://bugzil.la/1754658 - https://bugzil.la/1777404 - https://bugzil.la/1817104 - https://bugzil.la/1866197 - https://bugzil.la/1928259 notification_emails: - alissy@mozilla.com expires: 150 telemetry_mirror: DOM_CONTENTPROCESS_BUILDID_MISMATCH_FALSE_POSITIVE os_priority_lowered: type: counter description: > The number of times a content process has had its OS priority lowered due to only containing background tabs without audible media playing. This metric was generated to correspond to the Legacy Telemetry scalar dom.contentprocess.os_priority_lowered. bugs: - https://bugzil.la/1538987 data_reviews: - https://bugzil.la/1538987 notification_emails: - mconley@mozilla.com - gsvelto@mozilla.com expires: never telemetry_mirror: DOM_CONTENTPROCESS_OS_PRIORITY_LOWERED os_priority_raised: type: counter description: > The number of times a content process has had its OS priority raised due to containing at least one foregrounded tab, or a tab with audible media has started playing in it. This metric was generated to correspond to the Legacy Telemetry scalar dom.contentprocess.os_priority_raised. bugs: - https://bugzil.la/1538987 data_reviews: - https://bugzil.la/1538987 notification_emails: - mconley@mozilla.com - gsvelto@mozilla.com expires: never telemetry_mirror: DOM_CONTENTPROCESS_OS_PRIORITY_RAISED os_priority_change_considered: type: counter description: > The number of times we've had the opportunity to change content process priority due to a tab switch or a tab being opened. This metric was generated to correspond to the Legacy Telemetry scalar dom.contentprocess.os_priority_change_considered. bugs: - https://bugzil.la/1538987 data_reviews: - https://bugzil.la/1538987 notification_emails: - mconley@mozilla.com - gsvelto@mozilla.com expires: never telemetry_mirror: DOM_CONTENTPROCESS_OS_PRIORITY_CHANGE_CONSIDERED launch_mainthread: type: timing_distribution description: > Time spent on the main thread during asynchronous content process launch. This metric was generated to correspond to the Legacy Telemetry exponential histogram CONTENT_PROCESS_LAUNCH_MAINTHREAD_MS. time_unit: millisecond bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1474991 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1474991 notification_emails: - jld@mozilla.com - jimm@mozilla.com - mconley@mozilla.com expires: never telemetry_mirror: CONTENT_PROCESS_LAUNCH_MAINTHREAD_MS launch_total: type: timing_distribution description: > Total time elapsed during asynchronous content process launch, until the process is usable for loading content. This metric was generated to correspond to the Legacy Telemetry exponential histogram CONTENT_PROCESS_LAUNCH_TOTAL_MS. time_unit: millisecond bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1474991 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1474991 notification_emails: - jld@mozilla.com - jimm@mozilla.com - mconley@mozilla.com expires: never telemetry_mirror: CONTENT_PROCESS_LAUNCH_TOTAL_MS sync_launch: type: timing_distribution description: > Time elapsed during synchronous content process launch until the process is usable for loading content. This metric was generated to correspond to the Legacy Telemetry exponential histogram CONTENT_PROCESS_SYNC_LAUNCH_MS. time_unit: millisecond bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1474991 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1474991 notification_emails: - jld@mozilla.com - jimm@mozilla.com - mconley@mozilla.com expires: never telemetry_mirror: CONTENT_PROCESS_SYNC_LAUNCH_MS launch_is_sync: type: labeled_counter description: > Whether a content process was launched synchronously (unnecessarily delaying UI response). This metric was generated to correspond to the Legacy Telemetry boolean histogram CONTENT_PROCESS_LAUNCH_IS_SYNC. labels: - "false" - "true" bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1474991 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1474991 notification_emails: - jld@mozilla.com - jimm@mozilla.com - mconley@mozilla.com expires: never telemetry_mirror: h#CONTENT_PROCESS_LAUNCH_IS_SYNC dom.parentprocess: private_window_used: type: boolean description: > Whether a private browsing window has been used in the session. This metric was generated to correspond to the Legacy Telemetry scalar dom.parentprocess.private_window_used. bugs: - https://bugzil.la/1491047 data_reviews: - https://bugzil.la/1491047 notification_emails: - seceng-telemetry@mozilla.com - ehsan+telemetry@mozilla.com expires: never telemetry_mirror: DOM_PARENTPROCESS_PRIVATE_WINDOW_USED process_launch_errors: type: labeled_counter description: > Collect precise set of error code and calling site upon process creation failure path. This metric was generated to correspond to the Legacy Telemetry scalar dom.parentprocess.process_launch_errors. bugs: - https://bugzil.la/1819311 data_reviews: - https://bugzil.la/1819311 notification_emails: - alissy@mozilla.com expires: never telemetry_mirror: DOM_PARENTPROCESS_PROCESS_LAUNCH_ERRORS dom.textfragment: find_directives: type: timing_distribution description: | Time spent in TextDirectiveFinder::FindTextDirectivesInDocument() per page load time_unit: millisecond expires: never bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1942117 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1942117 notification_emails: - dom-core@mozilla.com - jjaschke@mozilla.com create_directive: type: timing_distribution description: | Time spent in FragmentDirective::CreateTextDirective() time_unit: millisecond expires: never bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1942117 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1942117 notification_emails: - dom-core@mozilla.com - jjaschke@mozilla.com glam_experiment: protect_time: type: timing_distribution disabled: true time_unit: millisecond description: > Duplicate of: `javascript_pageload.protect_time` 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. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1947604 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1709139#c4 data_sensitivity: - technical notification_emails: - tlong@mozilla.com - efilho@mozilla.com expires: 146 largest_contentful_paint: type: timing_distribution disabled: true time_unit: millisecond description: > 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. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1947604 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1862939#c5 notification_emails: - tlong@mozilla.com - efilho@mozilla.com expires: 146 dom: forget_skippable_during_idle: type: custom_distribution description: > Percent of the cycle collector's forget skippable done during idle time This metric was generated to correspond to the Legacy Telemetry linear histogram FORGET_SKIPPABLE_DURING_IDLE. range_min: 1 range_max: 100 bucket_count: 50 histogram_type: linear unit: percent bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1372042 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1372042 notification_emails: - dev-telemetry-gc-alerts@mozilla.org expires: never telemetry_mirror: FORGET_SKIPPABLE_DURING_IDLE forget_skippable_frequency: type: custom_distribution description: > Number of forget skippables occurred during a minute This metric was generated to correspond to the Legacy Telemetry linear histogram FORGET_SKIPPABLE_FREQUENCY. range_min: 1 range_max: 500 bucket_count: 100 histogram_type: linear unit: forget skippables per minute bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1487271 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1487271 notification_emails: - smaug@mozilla.com - dev-telemetry-gc-alerts@mozilla.org expires: never telemetry_mirror: FORGET_SKIPPABLE_FREQUENCY fullscreen_transition_black: type: timing_distribution description: > The time spent in the fully-black screen in fullscreen transition This metric was generated to correspond to the Legacy Telemetry exponential histogram FULLSCREEN_TRANSITION_BLACK_MS. time_unit: millisecond bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1271160 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1271160 notification_emails: - mozilla-telemetry@upsuper.org expires: never telemetry_mirror: FULLSCREEN_TRANSITION_BLACK_MS gc_in_progress: type: timing_distribution description: > Time from the beginning of the first slice to the end of the last slice (ms) This metric was generated to correspond to the Legacy Telemetry exponential histogram GC_IN_PROGRESS_MS. time_unit: millisecond bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1545093 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1545093 notification_emails: - dev-telemetry-gc-alerts@mozilla.org - smaug@mozilla.com expires: never telemetry_mirror: GC_IN_PROGRESS_MS gc_slice_during_idle: type: custom_distribution description: > Percent of GC slice done during idle time This metric was generated to correspond to the Legacy Telemetry linear histogram GC_SLICE_DURING_IDLE. range_min: 1 range_max: 100 bucket_count: 50 histogram_type: linear unit: percent bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1372042 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1372042 notification_emails: - dev-telemetry-gc-alerts@mozilla.org expires: never telemetry_mirror: GC_SLICE_DURING_IDLE innerwindows_with_mutation_listeners: type: labeled_counter description: > Deleted or to-be-reused innerwindow which has had mutation event listeners. This metric was generated to correspond to the Legacy Telemetry boolean histogram INNERWINDOWS_WITH_MUTATION_LISTENERS. labels: - "false" - "true" bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1956726 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1956726 notification_emails: - dom-core@mozilla.com expires: never telemetry_mirror: h#INNERWINDOWS_WITH_MUTATION_LISTENERS xmlhttprequest_async_or_sync: type: labeled_counter description: > Type of XMLHttpRequest, async or sync This metric was generated to correspond to the Legacy Telemetry boolean histogram XMLHTTPREQUEST_ASYNC_OR_SYNC. labels: - "false" - "true" bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1956726 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1956726 notification_emails: - dom-core@mozilla.com expires: never telemetry_mirror: h#XMLHTTPREQUEST_ASYNC_OR_SYNC storage_access_api_ui: type: labeled_counter description: > Storage Access API UI events. This metric was generated to correspond to the Legacy Telemetry categorical histogram STORAGE_ACCESS_API_UI. labels: - Request - AllowAutomatically - Deny - Allow - AllowOnAnySite bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1513309 - https://bugzilla.mozilla.org/show_bug.cgi?id=1588844 - https://bugzilla.mozilla.org/show_bug.cgi?id=1643432 - https://bugzilla.mozilla.org/show_bug.cgi?id=1689262 - https://bugzilla.mozilla.org/show_bug.cgi?id=1730043 - https://bugzilla.mozilla.org/show_bug.cgi?id=1832670 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1513309 - https://bugzilla.mozilla.org/show_bug.cgi?id=1588844 - https://bugzilla.mozilla.org/show_bug.cgi?id=1643432 - https://bugzilla.mozilla.org/show_bug.cgi?id=1689262 - https://bugzilla.mozilla.org/show_bug.cgi?id=1730043 - https://bugzilla.mozilla.org/show_bug.cgi?id=1832670 notification_emails: - emz@mozilla.com - tihuang@mozilla.com expires: never telemetry_mirror: h#STORAGE_ACCESS_API_UI slow_script_notice_count: type: counter description: > Count slow script notices This metric was generated to correspond to the Legacy Telemetry count histogram SLOW_SCRIPT_NOTICE_COUNT. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1956726 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1956726 notification_emails: - perf-telemetry-alerts@mozilla.com expires: never telemetry_mirror: h#SLOW_SCRIPT_NOTICE_COUNT slow_script_page_count: type: counter description: > The number of pages that trigger slow script notices This metric was generated to correspond to the Legacy Telemetry count histogram SLOW_SCRIPT_PAGE_COUNT. bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1251667 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1251667 notification_emails: - perf-telemetry-alerts@mozilla.com expires: never telemetry_mirror: h#SLOW_SCRIPT_PAGE_COUNT script_loading_source: type: labeled_counter description: > Record the input from which the bytes are coming from, for each script in a document. This metric was generated to correspond to the Legacy Telemetry categorical histogram DOM_SCRIPT_LOADING_SOURCE. labels: - Inline - SourceFallback - Source - AltData bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1362114 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1362114 notification_emails: - nicolas.b.pierron@mozilla.com expires: never telemetry_mirror: h#DOM_SCRIPT_LOADING_SOURCE blink_filesystem_used: type: labeled_counter description: > Webkit/Blink filesystem used This metric was generated to correspond to the Legacy Telemetry boolean histogram BLINK_FILESYSTEM_USED. labels: - "false" - "true" bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1272501 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1272501 notification_emails: - amarchesini@mozilla.com expires: never telemetry_mirror: h#BLINK_FILESYSTEM_USED webkit_directory_used: type: labeled_counter description: > HTMLInputElement.webkitdirectory attribute used This metric was generated to correspond to the Legacy Telemetry boolean histogram WEBKIT_DIRECTORY_USED. labels: - "false" - "true" bugs: - https://bugzilla.mozilla.org/show_bug.cgi?id=1272501 data_reviews: - https://bugzilla.mozilla.org/show_bug.cgi?id=1272501 notification_emails: - amarchesini@mozilla.com expires: never telemetry_mirror: h#WEBKIT_DIRECTORY_USED