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diff --git a/browser/components/urlbar/docs/telemetry.rst b/browser/components/urlbar/docs/telemetry.rst new file mode 100644 index 0000000000..0c48e83eff --- /dev/null +++ b/browser/components/urlbar/docs/telemetry.rst @@ -0,0 +1,652 @@ +Telemetry +========= + +This section describes existing telemetry probes measuring interaction with the +Address Bar. + +For telemetry specific to Firefox Suggest, see the +:doc:`firefox-suggest-telemetry` document. + +.. toctree:: + :caption: Table of Contents + + telemetry + +Histograms +---------- + +PLACES_AUTOCOMPLETE_1ST_RESULT_TIME_MS + This probe tracks the amount of time it takes to get the first result. + It is an exponential histogram with values between 5 and 100. + +PLACES_AUTOCOMPLETE_6_FIRST_RESULTS_TIME_MS + This probe tracks the amount of time it takes to get the first six results. + It is an exponential histogram with values between 50 and 1000. + +FX_URLBAR_SELECTED_RESULT_METHOD + This probe tracks how a result was picked by the user from the list. + It is a categorical histogram with these values: + + - ``enter`` + The user pressed Enter without selecting a result first. + This most likely happens when the user confirms the default preselected + result (aka *heuristic result*), or when they select with the keyboard a + one-off search button and confirm with Enter. + - ``enterSelection`` + The user selected a result, but not using Tab or the arrow keys, and then + pressed Enter. This is a rare and generally unexpected event, there may be + exotic ways to select a result we didn't consider, that are tracked here. + Look at arrowEnterSelection and tabEnterSelection for more common actions. + - ``click`` + The user clicked on a result. + - ``arrowEnterSelection`` + The user selected a result using the arrow keys, and then pressed Enter. + - ``tabEnterSelection`` + The first key the user pressed to select a result was the Tab key, and then + they pressed Enter. Note that this means the user could have used the arrow + keys after first pressing the Tab key. + - ``rightClickEnter`` + Before QuantumBar, it was possible to right-click a result to highlight but + not pick it. Then the user could press Enter. This is no more possible. + +FX_URLBAR_ZERO_PREFIX_DWELL_TIME_MS + This probe records the amount of time the zero-prefix view was shown; that is, + the time from when it was opened to the time it was closed. "Zero-prefix" + means the search string was empty, so the zero-prefix view is the view that's + shown when the user clicks in the urlbar before typing a search string. Often + it's also called the "top sites" view since normally it shows the user's top + sites. This is an exponential histogram whose values range from 0 to 60,000 + with 50 buckets. Values are in milliseconds. This histogram was introduced in + Firefox 110.0 in bug 1806765. + +Scalars +------- + +urlbar.abandonment + A uint recording the number of abandoned engagements in the urlbar. An + abandonment occurs when the user begins using the urlbar but stops before + completing the engagement. This can happen when the user clicks outside the + urlbar to focus a different part of the window. It can also happen when the + user switches to another window while the urlbar is focused. + +urlbar.engagement + A uint recording the number of engagements the user completes in the urlbar. + An engagement occurs when the user navigates to a page using the urlbar, for + example by picking a result in the urlbar panel or typing a search term or URL + in the urlbar and pressing the enter key. + +urlbar.impression.* + A uint recording the number of impression that was displaying when user picks + any result. + + - ``autofill_about`` + For about-page type autofill. + - ``autofill_adaptive`` + For adaptive history type autofill. + - ``autofill_origin`` + For origin type autofill. + - ``autofill_other`` + Counts how many times some other type of autofill result that does not have + a specific scalar was shown. This is a fallback that is used when the code is + not properly setting a specific autofill type, and it should not normally be + used. If it appears in the data, it means we need to investigate and fix the + code that is not properly setting a specific autofill type. + - ``autofill_preloaded`` + For preloaded site type autofill. + - ``autofill_url`` + For url type autofill. + +urlbar.tips + This is a keyed scalar whose values are uints and are incremented each time a + tip result is shown, a tip is picked, and a tip's help button is picked. The + keys are: + + - ``intervention_clear-help`` + Incremented when the user picks the help button in the clear-history search + intervention. + - ``intervention_clear-picked`` + Incremented when the user picks the clear-history search intervention. + - ``intervention_clear-shown`` + Incremented when the clear-history search intervention is shown. + - ``intervention_refresh-help`` + Incremented when the user picks the help button in the refresh-Firefox + search intervention. + - ``intervention_refresh-picked`` + Incremented when the user picks the refresh-Firefox search intervention. + - ``intervention_refresh-shown`` + Incremented when the refresh-Firefox search intervention is shown. + - ``intervention_update_ask-help`` + Incremented when the user picks the help button in the update_ask search + intervention, which is shown when there's a Firefox update available but the + user's preference says we should ask them to download and apply it. + - ``intervention_update_ask-picked`` + Incremented when the user picks the update_ask search intervention. + - ``intervention_update_ask-shown`` + Incremented when the update_ask search intervention is shown. + - ``intervention_update_refresh-help`` + Incremented when the user picks the help button in the update_refresh search + intervention, which is shown when the user's browser is up to date but they + triggered the update intervention. We show this special refresh intervention + instead. + - ``intervention_update_refresh-picked`` + Incremented when the user picks the update_refresh search intervention. + - ``intervention_update_refresh-shown`` + Incremented when the update_refresh search intervention is shown. + - ``intervention_update_restart-help`` + Incremented when the user picks the help button in the update_restart search + intervention, which is shown when there's an update and it's been downloaded + and applied. The user needs to restart to finish. + - ``intervention_update_restart-picked`` + Incremented when the user picks the update_restart search intervention. + - ``intervention_update_restart-shown`` + Incremented when the update_restart search intervention is shown. + - ``intervention_update_web-help`` + Incremented when the user picks the help button in the update_web search + intervention, which is shown when we can't update the browser or possibly + even check for updates for some reason, so the user should download the + latest version from the web. + - ``intervention_update_web-picked`` + Incremented when the user picks the update_web search intervention. + - ``intervention_update_web-shown`` + Incremented when the update_web search intervention is shown. + - ``tabtosearch-shown`` + Increment when a non-onboarding tab-to-search result is shown, once per + engine per engagement. Please note that the number of times non-onboarding + tab-to-search results are picked is the sum of all keys in + ``urlbar.searchmode.tabtosearch``. Please also note that more detailed + telemetry is recorded about both onboarding and non-onboarding tab-to-search + results in urlbar.tabtosearch.*. These probes in ``urlbar.tips`` are still + recorded because ``urlbar.tabtosearch.*`` is not currently recorded + in Release. + - ``tabtosearch_onboard-shown`` + Incremented when a tab-to-search onboarding result is shown, once per engine + per engagement. Please note that the number of times tab-to-search + onboarding results are picked is the sum of all keys in + ``urlbar.searchmode.tabtosearch_onboard``. + - ``searchTip_onboard-picked`` + Incremented when the user picks the onboarding search tip. + - ``searchTip_onboard-shown`` + Incremented when the onboarding search tip is shown. + - ``searchTip_persist-picked`` + Incremented when the user picks the urlbar persisted search tip. + - ``searchTip_persist-shown`` + Incremented when the url persisted search tip is shown. + - ``searchTip_redirect-picked`` + Incremented when the user picks the redirect search tip. + - ``searchTip_redirect-shown`` + Incremented when the redirect search tip is shown. + +urlbar.searchmode.* + This is a set of keyed scalars whose values are uints incremented each + time search mode is entered in the Urlbar. The suffix on the scalar name + describes how search mode was entered. Possibilities include: + + - ``bookmarkmenu`` + Used when the user selects the Search Bookmarks menu item in the Library + menu. + - ``handoff`` + Used when the user uses the search box on the new tab page and is handed off + to the address bar. NOTE: This entry point was disabled from Firefox 88 to + 91. Starting with 91, it will appear but in low volume. Users must have + searching in the Urlbar disabled to enter search mode via handoff. + - ``keywordoffer`` + Used when the user selects a keyword offer result. + - ``oneoff`` + Used when the user selects a one-off engine in the Urlbar. + - ``shortcut`` + Used when the user enters search mode with a keyboard shortcut or menu bar + item (e.g. ``Accel+K``). + - ``tabmenu`` + Used when the user selects the Search Tabs menu item in the tab overflow + menu. + - ``tabtosearch`` + Used when the user selects a tab-to-search result. These results suggest a + search engine when the search engine's domain is autofilled. + - ``tabtosearch_onboard`` + Used when the user selects a tab-to-search onboarding result. These are + shown the first few times the user encounters a tab-to-search result. + - ``topsites_newtab`` + Used when the user selects a search shortcut Top Site from the New Tab Page. + - ``topsites_urlbar`` + Used when the user selects a search shortcut Top Site from the Urlbar. + - ``touchbar`` + Used when the user taps a search shortct on the Touch Bar, available on some + Macs. + - ``typed`` + Used when the user types an engine alias in the Urlbar. + - ``other`` + Used as a catchall for other behaviour. We don't expect this scalar to hold + any values. If it does, we need to correct an issue with search mode entry + points. + + The keys for the scalars above are engine and source names. If the user enters + a remote search mode with a built-in engine, we record the engine name. If the + user enters a remote search mode with an engine they installed (e.g. via + OpenSearch or a WebExtension), we record ``other`` (not to be confused with + the ``urlbar.searchmode.other`` scalar above). If they enter a local search + mode, we record the English name of the result source (e.g. "bookmarks", + "history", "tabs"). Note that we slightly modify the engine name for some + built-in engines: we flatten all localized Amazon sites (Amazon.com, + Amazon.ca, Amazon.de, etc.) to "Amazon" and we flatten all localized + Wikipedia sites (Wikipedia (en), Wikipedia (fr), etc.) to "Wikipedia". This + is done to reduce the number of keys used by these scalars. + +urlbar.picked.* + This is a set of keyed scalars whose values are uints incremented each + time a result is picked from the Urlbar. The suffix on the scalar name + is the result type. The keys for the scalars above are the 0-based index of + the result in the urlbar panel when it was picked. + + .. note:: + Available from Firefox 84 on. Use the *FX_URLBAR_SELECTED_** histograms in + earlier versions. + + .. note:: + Firefox 102 deprecated ``autofill`` and added ``autofill_about``, + ``autofill_adaptive``, ``autofill_origin``, ``autofill_other``, + ``autofill_preloaded``, and ``autofill_url``. + + Valid result types are: + + - ``autofill`` + This scalar was deprecated in Firefox 102 and replaced with + ``autofill_about``, ``autofill_adaptive``, ``autofill_origin``, + ``autofill_other``, ``autofill_preloaded``, and ``autofill_url``. Previously + it was recorded in each of the cases that the other scalars now cover. + - ``autofill_about`` + An autofilled "about:" page URI (e.g., about:config). The user must first + type "about:" to trigger this type of autofill. + - ``autofill_adaptive`` + An autofilled URL from the user's adaptive history. This type of autofill + differs from ``autofill_url`` in two ways: (1) It's based on the user's + adaptive history, a particular type of history that associates the user's + search string with the URL they pick in the address bar. (2) It autofills + full URLs instead of "up to the next slash" partial URLs. For more + information on this type of autofill, see this `adaptive history autofill + document`_. + - ``autofill_origin`` + An autofilled origin_ from the user's history. Typically "origin" means a + domain or host name like "mozilla.org". Technically it can also include a + URL scheme or protocol like "https" and a port number like ":8000". Firefox + can autofill domain names by themselves, domain names with schemes, domain + names with ports, and domain names with schemes and ports. All of these + cases count as origin autofill. For more information, see this `adaptive + history autofill document`_. + - ``autofill_other`` + Counts how many times some other type of autofill result that does not have + a specific keyed scalar was picked at a given index. This is a fallback that + is used when the code is not properly setting a specific autofill type, and + it should not normally be used. If it appears in the data, it means we need + to investigate and fix the code that is not properly setting a specific + autofill type. + - ``autofill_preloaded`` + An autofilled `preloaded site`_. The preloaded-sites feature (as it relates + to this telemetry scalar) has never been enabled in Firefox, so this scalar + should never be recorded. It can be enabled by flipping a hidden preference, + however. It's included here for consistency and correctness. + - ``autofill_url`` + An autofilled URL or partial URL from the user's history. Firefox autofills + URLs "up to the next slash", so to trigger URL autofill, the user must first + type a domain name (or trigger origin autofill) and then begin typing the + rest of the URL (technically speaking, its path). As they continue typing, + the URL will only be partially autofilled up to the next slash, or if there + is no next slash, to the end of the URL. This allows the user to easily + visit different subpaths of a domain. For more information, see this + `adaptive history autofill document`_. + - ``bookmark`` + A bookmarked URL. + - ``dynamic`` + A specially crafted result, often used in experiments when basic types are + not flexible enough for a rich layout. + - ``extension`` + Added by an add-on through the omnibox WebExtension API. + - ``formhistory`` + A search suggestion from previous search history. + - ``history`` + A URL from history. + - ``keyword`` + A bookmark keyword. + - ``quickaction`` + A QuickAction. + - ``quicksuggest`` + A Firefox Suggest (a.k.a. quick suggest) suggestion. + - ``remotetab`` + A tab synced from another device. + - ``searchengine`` + A search result, but not a suggestion. May be the default search action + or a search alias. + - ``searchsuggestion`` + A remote search suggestion. + - ``switchtab`` + An open tab. + - ``tabtosearch`` + A tab to search result. + - ``tip`` + A tip result. + - ``topsite`` + An entry from top sites. + - ``unknown`` + An unknown result type, a bug should be filed to figure out what it is. + - ``visiturl`` + The user typed string can be directly visited. + + .. _adaptive history autofill document: https://docs.google.com/document/d/e/2PACX-1vRBLr_2dxus-aYhZRUkW9Q3B1K0uC-a0qQyE3kQDTU3pcNpDHb36-Pfo9fbETk89e7Jz4nkrqwRhi4j/pub + .. _origin: https://html.spec.whatwg.org/multipage/origin.html#origin + .. _preloaded site: https://searchfox.org/mozilla-central/source/browser/components/urlbar/UrlbarProviderPreloadedSites.jsm + +urlbar.picked.searchmode.* + This is a set of keyed scalars whose values are uints incremented each time a + result is picked from the Urlbar while the Urlbar is in search mode. The + suffix on the scalar name is the search mode entry point. The keys for the + scalars are the 0-based index of the result in the urlbar panel when it was + picked. + + .. note:: + These scalars share elements of both ``urlbar.picked.*`` and + ``urlbar.searchmode.*``. Scalar name suffixes are search mode entry points, + like ``urlbar.searchmode.*``. The keys for these scalars are result indices, + like ``urlbar.picked.*``. + + .. note:: + These data are a subset of the data recorded by ``urlbar.picked.*``. For + example, if the user enters search mode by clicking a one-off then selects + a Google search suggestion at index 2, we would record in **both** + ``urlbar.picked.searchsuggestion`` and ``urlbar.picked.searchmode.oneoff``. + +urlbar.tabtosearch.* + This is a set of keyed scalars whose values are uints incremented when a + tab-to-search result is shown, once per engine per engagement. There are two + sub-probes: ``urlbar.tabtosearch.impressions`` and + ``urlbar.tabtosearch.impressions_onboarding``. The former records impressions + of regular tab-to-search results and the latter records impressions of + onboarding tab-to-search results. The key values are identical to those of the + ``urlbar.searchmode.*`` probes: they are the names of the engines shown in the + tab-to-search results. Engines that are not built in are grouped under the + key ``other``. + + .. note:: + Due to the potentially sensitive nature of these data, they are currently + collected only on pre-release version of Firefox. See bug 1686330. + +urlbar.zeroprefix.abandonment + A uint recording the number of abandonments of the zero-prefix view. + "Zero-prefix" means the search string was empty, so the zero-prefix view is + the view that's shown when the user clicks in the urlbar before typing a + search string. Often it's called the "top sites" view since normally it shows + the user's top sites. "Abandonment" means the user opened the zero-prefix view + but it was closed without the user picking a result inside it. This scalar was + introduced in Firefox 110.0 in bug 1806765. + +urlbar.zeroprefix.engagement + A uint recording the number of engagements in the zero-prefix view. + "Zero-prefix" means the search string was empty, so the zero-prefix view is + the view that's shown when the user clicks in the urlbar before typing a + search string. Often it's called the "top sites" view since normally it shows + the user's top sites. "Engagement" means the user picked a result inside the + view. This scalar was introduced in Firefox 110.0 in bug 1806765. + +urlbar.zeroprefix.exposure + A uint recording the number of times the user was exposed to the zero-prefix + view; that is, the number of times it was shown. "Zero-prefix" means the + search string was empty, so the zero-prefix view is the view that's shown when + the user clicks in the urlbar before typing a search string. Often it's called + the "top sites" view since normally it shows the user's top sites. This scalar + was introduced in Firefox 110.0 in bug 1806765. + +places.* + This is places related telemetry. + + Valid result types are: + + - ``sponsored_visit_no_triggering_url`` + Number of sponsored visits that could not find their triggering URL in + history. We expect this to be a small number just due to the navigation layer + manipulating URLs. A large or growing value may be a concern. + +Search Engagement Telemetry +--------------------------- + +The search engagement telemetry provided since Firefox 110 is is recorded using +Glean events. Because of the data size, these events are collected only for a +subset of the population, using the Glean Sampling feature. Please see the +following documents for the details. + + - `Engagement`_ : + It is defined as a completed action in urlbar, where a user picked one of + the results. + - `Abandonment`_ : + It is defined as an action where the user open the results but does not + complete an engagement action, usually unfocusing the urlbar. This also + happens when the user switches to another window, if the results popup was + opening. + - `Impression`_ : + It is defined as an action where the results had been shown to the user for + a while. In default, it will be recorded when the same results have been + shown and 1 sec has elapsed. The interval value can be modified through the + `browser.urlbar.searchEngagementTelemetry.pauseImpressionIntervalMs` + preference. + +.. _Engagement: https://dictionary.telemetry.mozilla.org/apps/firefox_desktop/metrics/urlbar_engagement +.. _Abandonment: https://dictionary.telemetry.mozilla.org/apps/firefox_desktop/metrics/urlbar_abandonment +.. _Impression: https://dictionary.telemetry.mozilla.org/apps/firefox_desktop/metrics/urlbar_impression + + +Custom pings for Contextual Services +------------------------------------ + +Contextual Services currently has two features involving the address bar, top +sites and Firefox Suggest. Top sites telemetry is described below. For Firefox +Suggest, see the :doc:`firefox-suggest-telemetry` document. + +Firefox sends the following `custom pings`_ to record impressions and clicks of +the top sites feature. + + .. _custom pings: https://docs.telemetry.mozilla.org/cookbooks/new_ping.html#sending-a-custom-ping + +Top Sites Impression + This records an impression when a sponsored top site is shown. + + - ``context_id`` + A UUID representing this user. Note that it's not client_id, nor can it be + used to link to a client_id. + - ``tile_id`` + A unique identifier for the sponsored top site. + - ``source`` + The browser location where the impression was displayed. + - ``position`` + The placement of the top site (1-based). + - ``advertiser`` + The Name of the advertiser. + - ``reporting_url`` + The reporting URL of the sponsored top site, normally pointing to the ad + partner's reporting endpoint. + - ``version`` + Firefox version. + - ``release_channel`` + Firefox release channel. + - ``locale`` + User's current locale. + +Changelog + Firefox 108.0 + The impression ping is sent for Pocket sponsored tiles as well. Pocket sponsored tiles have different values for ``advertiser`` and ``reporting_url`` is null. [Bug 1794022_] + + Firefox 87.0 + Introduced. [Non_public_doc_] + +.. _Non_public_doc: https://docs.google.com/document/d/1qLb4hUwR8YQj5QnjJtwxQIoDCPLQ6XuAmJPQ6_WmS4E/edit +.. _1794022: https://bugzilla.mozilla.org/show_bug.cgi?id=1794022 + +Top Sites Click + This records a click ping when a sponsored top site is clicked by the user. + + - ``context_id`` + A UUID representing this user. Note that it's not client_id, nor can it be + used to link to a client_id. + - ``tile_id`` + A unique identifier for the sponsored top site. + - ``source`` + The browser location where the click was tirggered. + - ``position`` + The placement of the top site (1-based). + - ``advertiser`` + The Name of the advertiser. + - ``reporting_url`` + The reporting URL of the sponsored top site, normally pointing to the ad + partner's reporting endpoint. + - ``version`` + Firefox version. + - ``release_channel`` + Firefox release channel. + - ``locale`` + User's current locale. + +Changelog + Firefox 108.0 + The click ping is sent for Pocket sponsored tiles as well. Pocket sponsored tiles have different values for ``advertiser`` and ``reporting_url`` is null. [Bug 1794022_] + + Firefox 87.0 + Introduced. [Non_public_doc_] + + +Other telemetry relevant to the Address Bar +------------------------------------------- + +Search Telemetry + Some of the `search telemetry`_ is also relevant to the address bar. + +contextual.services.topsites.* + These keyed scalars instrument the impressions and clicks for sponsored top + sites in the urlbar. + The key is a combination of the source and the placement of the top sites link + (1-based) such as 'urlbar_1'. For each key, it records the counter of the + impression or click. + Note that these scalars are shared with the top sites on the newtab page. + +Telemetry Environment + The following preferences relevant to the address bar are recorded in + :doc:`telemetry environment data </toolkit/components/telemetry/data/environment>`: + + - ``browser.search.suggest.enabled``: The global toggle for search + suggestions everywhere in Firefox (search bar, urlbar, etc.). Defaults to + true. + - ``browser.urlbar.autoFill``: The global preference for whether autofill in + the urlbar is enabled. When false, all types of autofill are disabled. + - ``browser.urlbar.autoFill.adaptiveHistory.enabled``: True if adaptive + history autofill in the urlbar is enabled. + - ``browser.urlbar.suggest.searches``: True if search suggestions are + enabled in the urlbar. Defaults to false. + +Firefox Suggest + Telemetry specific to Firefox Suggest is described in the + :doc:`firefox-suggest-telemetry` document. + +.. _search telemetry: /browser/search/telemetry.html + +Event Telemetry +--------------- + + .. note:: + This is a legacy event telemetry. For the current telemetry, please see + `Search Engagement Telemetry`_. These legacy events were disabled by default + and required enabling through a preference or a Urlbar WebExtension + experimental API. + +.. _Search Engagement Telemetry: #search-engagement-telemetry + +The event telemetry is grouped under the ``urlbar`` category. + +Event Method + There are two methods to describe the interaction with the urlbar: + + - ``engagement`` + It is defined as a completed action in urlbar, where a user inserts text + and executes one of the actions described in the Event Object. + - ``abandonment`` + It is defined as an action where the user inserts text but does not + complete an engagement action, usually unfocusing the urlbar. This also + happens when the user switches to another window, regardless of urlbar + focus. + +Event Value + This is how the user interaction started + + - ``typed``: The text was typed into the urlbar. + - ``dropped``: The text was drag and dropped into the urlbar. + - ``pasted``: The text was pasted into the urlbar. + - ``topsites``: The user opened the urlbar view without typing, dropping, + or pasting. + In these cases, if the urlbar input is showing the URL of the loaded page + and the user has not modified the input’s content, the urlbar views shows + the user’s top sites. Otherwise, if the user had modified the input’s + content, the urlbar view shows results based on what the user has typed. + To tell whether top sites were shown, it's enough to check whether value is + ``topsites``. To know whether the user actually picked a top site, check + check that ``numChars`` == 0. If ``numChars`` > 0, the user initially opened + top sites, but then they started typing and confirmed a different result. + - ``returned``: The user abandoned a search, for example by switching to + another tab/window, or focusing something else, then came back to it + and continued. We consider a search continued if the user kept at least the + first char of the original search string. + - ``restarted``: The user abandoned a search, for example by switching to + another tab/window, or focusing something else, then came back to it, + cleared it and then typed a new string. + +Event Object + These describe actions in the urlbar: + + - ``click`` + The user clicked on a result. + - ``enter`` + The user confirmed a result with Enter. + - ``drop_go`` + The user dropped text on the input field. + - ``paste_go`` + The user used Paste and Go feature. It is not the same as paste and Enter. + - ``blur`` + The user unfocused the urlbar. This is only valid for ``abandonment``. + +Event Extra + This object contains additional information about the interaction. + Extra is a key-value store, where all the keys and values are strings. + + - ``elapsed`` + Time in milliseconds from the initial interaction to an action. + - ``numChars`` + Number of input characters the user typed or pasted at the time of + submission. + - ``numWords`` + Number of words in the input. The measurement is taken from a trimmed input + split up by its spaces. This is not a perfect measurement, since it will + return an incorrect value for languages that do not use spaces or URLs + containing spaces in its query parameters, for example. + - ``selType`` + The type of the selected result at the time of submission. + This is only present for ``engagement`` events. + It can be one of: ``none``, ``autofill``, ``visiturl``, ``bookmark``, + ``history``, ``keyword``, ``searchengine``, ``searchsuggestion``, + ``switchtab``, ``remotetab``, ``extension``, ``oneoff``, ``keywordoffer``, + ``canonized``, ``tip``, ``tiphelp``, ``formhistory``, ``tabtosearch``, + ``help``, ``block``, ``quicksuggest``, ``unknown`` + In practice, ``tabtosearch`` should not appear in real event telemetry. + Opening a tab-to-search result enters search mode and entering search mode + does not currently mark the end of an engagement. It is noted here for + completeness. Similarly, ``block`` indicates a result was blocked or deleted + but should not appear because blocking a result does not end the engagement. + - ``selIndex`` + Index of the selected result in the urlbar panel, or -1 for no selection. + There won't be a selection when a one-off button is the only selection, and + for the ``paste_go`` or ``drop_go`` objects. There may also not be a + selection if the system was busy and results arrived too late, then we + directly decide whether to search or visit the given string without having + a fully built result. + This is only present for ``engagement`` events. + - ``provider`` + The name of the result provider for the selected result. Existing values + are: ``HeuristicFallback``, ``Autofill``, ``Places``, + ``TokenAliasEngines``, ``SearchSuggestions``, ``UrlbarProviderTopSites``. + Data from before Firefox 91 will also list ``UnifiedComplete`` as a + provider. This is equivalent to ``Places``. + Values can also be defined by `URLBar provider experiments`_. + + .. _URLBar provider experiments: experiments.html#developing-address-bar-extensions |