diff --git a/app/metrics.yaml b/app/metrics.yaml
index 6625a2393..f7263ad0c 100644
--- a/app/metrics.yaml
+++ b/app/metrics.yaml
@@ -1658,6 +1658,41 @@ download_notification:
       - fenix-core@mozilla.com
     expires: "2020-03-01"
 
+user_specified_search_engines:
+  custom_engine_added:
+    type: event
+    description: >
+      A user added a new custom search engine
+    bugs:
+      - https://github.com/mozilla-mobile/fenix/issues/5884
+    data_reviews:
+      - https://github.com/mozilla-mobile/fenix/pull/6918
+    notification_emails:
+      - fenix-core@mozilla.com
+    expires: "2020-03-01"
+  custom_engine_deleted:
+    type: event
+    description: >
+      A user deleted a custom search engine
+    bugs:
+      - https://github.com/mozilla-mobile/fenix/issues/5586
+    data_reviews:
+      - https://github.com/mozilla-mobile/fenix/pull/6918
+    notification_emails:
+      - fenix-core@mozilla.com
+    expires: "2020-03-01"
+  search_with_custom_engine:
+    type: event
+    description: >
+      A user performed a search with a custom search engine
+    bugs:
+      - https://github.com/mozilla-mobile/fenix/issues/5586
+    data_reviews:
+      - https://github.com/mozilla-mobile/fenix/pull/6918
+    notification_emails:
+      - fenix-core@mozilla.com
+    expires: "2020-03-01"
+
 search_suggestions:
   enable_in_private:
     type: event
@@ -1669,4 +1704,4 @@ search_suggestions:
       - https://github.com/mozilla-mobile/fenix/pull/6746
     notification_emails:
      - fenix-core@mozilla.com
-    expires: "2020-03-01"
\ No newline at end of file
+    expires: "2020-03-01"
diff --git a/app/src/main/java/org/mozilla/fenix/components/metrics/GleanMetricsService.kt b/app/src/main/java/org/mozilla/fenix/components/metrics/GleanMetricsService.kt
index f0b8425b6..8bb4ea4fa 100644
--- a/app/src/main/java/org/mozilla/fenix/components/metrics/GleanMetricsService.kt
+++ b/app/src/main/java/org/mozilla/fenix/components/metrics/GleanMetricsService.kt
@@ -42,6 +42,7 @@ import org.mozilla.fenix.GleanMetrics.SyncAuth
 import org.mozilla.fenix.GleanMetrics.Tab
 import org.mozilla.fenix.GleanMetrics.ToolbarSettings
 import org.mozilla.fenix.GleanMetrics.TrackingProtection
+import org.mozilla.fenix.GleanMetrics.UserSpecifiedSearchEngines
 import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.ext.settings
 import org.mozilla.fenix.utils.BrowsersCache
@@ -454,6 +455,15 @@ private val Event.wrapper: EventWrapper<*>?
             { ToolbarSettings.changedPosition.record(it) },
             { ToolbarSettings.changedPositionKeys.valueOf(it) }
         )
+        is Event.CustomEngineAdded -> EventWrapper<NoExtraKeys>(
+            { UserSpecifiedSearchEngines.customEngineAdded.record(it) }
+        )
+        is Event.CustomEngineDeleted -> EventWrapper<NoExtraKeys>(
+            { UserSpecifiedSearchEngines.customEngineDeleted.record(it) }
+        )
+        is Event.SearchWithCustomEngine -> EventWrapper<NoExtraKeys>(
+            { UserSpecifiedSearchEngines.searchWithCustomEngine.record(it) }
+        )
         // Don't record other events in Glean:
         is Event.AddBookmark -> null
         is Event.OpenedBookmark -> null
diff --git a/app/src/main/java/org/mozilla/fenix/components/metrics/Metrics.kt b/app/src/main/java/org/mozilla/fenix/components/metrics/Metrics.kt
index ee5fcd870..5a92b6260 100644
--- a/app/src/main/java/org/mozilla/fenix/components/metrics/Metrics.kt
+++ b/app/src/main/java/org/mozilla/fenix/components/metrics/Metrics.kt
@@ -137,6 +137,9 @@ sealed class Event {
     object OpenOneLogin : Event()
     object CopyLogin : Event()
     object ViewLoginPassword : Event()
+    object CustomEngineAdded : Event()
+    object CustomEngineDeleted : Event()
+    object SearchWithCustomEngine : Event()
     object PrivateBrowsingShowSearchSuggestions : Event()
 
     // Interaction events with extras
diff --git a/app/src/main/java/org/mozilla/fenix/search/SearchController.kt b/app/src/main/java/org/mozilla/fenix/search/SearchController.kt
index 0f31da903..cefca4903 100644
--- a/app/src/main/java/org/mozilla/fenix/search/SearchController.kt
+++ b/app/src/main/java/org/mozilla/fenix/search/SearchController.kt
@@ -58,6 +58,13 @@ class DefaultSearchController(
             }
 
             context.metrics.track(event)
+            if (CustomSearchEngineStore.isCustomSearchEngine(
+                    context,
+                    store.state.searchEngineSource.searchEngine.identifier
+                )
+            ) {
+                context.components.analytics.metrics.track(Event.SearchWithCustomEngine)
+            }
         }
     }
 
@@ -86,6 +93,13 @@ class DefaultSearchController(
         )
 
         context.metrics.track(Event.EnteredUrl(false))
+        if (CustomSearchEngineStore.isCustomSearchEngine(
+                context,
+                store.state.searchEngineSource.searchEngine.identifier
+            )
+        ) {
+            context.components.analytics.metrics.track(Event.SearchWithCustomEngine)
+        }
     }
 
     override fun handleSearchTermsTapped(searchTerms: String) {
@@ -99,6 +113,13 @@ class DefaultSearchController(
 
         val event = createSearchEvent(store.state.searchEngineSource.searchEngine, true)
         context.metrics.track(event)
+        if (CustomSearchEngineStore.isCustomSearchEngine(
+                context,
+                store.state.searchEngineSource.searchEngine.identifier
+            )
+        ) {
+            context.components.analytics.metrics.track(Event.SearchWithCustomEngine)
+        }
     }
 
     override fun handleSearchShortcutEngineSelected(searchEngine: SearchEngine) {
diff --git a/app/src/main/java/org/mozilla/fenix/settings/search/AddSearchEngineFragment.kt b/app/src/main/java/org/mozilla/fenix/settings/search/AddSearchEngineFragment.kt
index 627b23665..71df0ca3e 100644
--- a/app/src/main/java/org/mozilla/fenix/settings/search/AddSearchEngineFragment.kt
+++ b/app/src/main/java/org/mozilla/fenix/settings/search/AddSearchEngineFragment.kt
@@ -30,6 +30,7 @@ import kotlinx.coroutines.withContext
 import mozilla.components.browser.search.SearchEngine
 import org.mozilla.fenix.R
 import org.mozilla.fenix.components.FenixSnackbar
+import org.mozilla.fenix.components.metrics.Event
 import org.mozilla.fenix.components.searchengine.CustomSearchEngineStore
 import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.ext.increaseTapArea
@@ -211,6 +212,7 @@ class AddSearchEngineFragment : Fragment(), CompoundButton.OnCheckedChangeListen
                             .show()
                     }
 
+                    context?.components?.analytics?.metrics?.track(Event.CustomEngineAdded)
                     findNavController().popBackStack()
                 }
             }
diff --git a/app/src/main/java/org/mozilla/fenix/settings/search/SearchEngineListPreference.kt b/app/src/main/java/org/mozilla/fenix/settings/search/SearchEngineListPreference.kt
index cf19417b6..5df878e3e 100644
--- a/app/src/main/java/org/mozilla/fenix/settings/search/SearchEngineListPreference.kt
+++ b/app/src/main/java/org/mozilla/fenix/settings/search/SearchEngineListPreference.kt
@@ -23,6 +23,7 @@ import kotlinx.coroutines.MainScope
 import mozilla.components.browser.search.SearchEngine
 import mozilla.components.browser.search.provider.SearchEngineList
 import org.mozilla.fenix.R
+import org.mozilla.fenix.components.metrics.Event
 import org.mozilla.fenix.components.searchengine.CustomSearchEngineStore
 import org.mozilla.fenix.ext.components
 import org.mozilla.fenix.ext.getRootView
@@ -191,6 +192,10 @@ abstract class SearchEngineListPreference @JvmOverloads constructor(
                         .getDefaultEngine(context)
                         .name
                 }
+                if (CustomSearchEngineStore.isCustomSearchEngine(context, engine.identifier)) {
+                    context.components.analytics.metrics.track(Event.CustomEngineDeleted)
+                }
+                refreshSearchEngineViews(context)
             }
         )
 
diff --git a/docs/metrics.md b/docs/metrics.md
index 6038ed88d..027ddb57a 100644
--- a/docs/metrics.md
+++ b/docs/metrics.md
@@ -156,6 +156,9 @@ The following metrics are added to the ping:
 | tracking_protection.etp_tracker_list |[event](https://mozilla.github.io/glean/book/user/metrics/event.html) |A user pressed into a list of categorized trackers in tracking protection panel.  |[1](https://github.com/mozilla-mobile/fenix/pull/5414#issuecomment-532847188)||2020-03-01 |
 | tracking_protection.exception_added |[event](https://mozilla.github.io/glean/book/user/metrics/event.html) |A user added a tracking protection exception through the TP toggle in the panel.  |[1](https://github.com/mozilla-mobile/fenix/pull/5414#issuecomment-532847188)||2020-03-01 |
 | tracking_protection.panel_settings |[event](https://mozilla.github.io/glean/book/user/metrics/event.html) |A user opened tracking protection settings from the panel.  |[1](https://github.com/mozilla-mobile/fenix/pull/5414#issuecomment-532847188)||2020-03-01 |
+| user_specified_search_engines.custom_engine_added |[event](https://mozilla.github.io/glean/book/user/metrics/event.html) |A user added a new custom search engine  |[1](https://github.com/mozilla-mobile/fenix/pull/6918)||2020-03-01 |
+| user_specified_search_engines.custom_engine_deleted |[event](https://mozilla.github.io/glean/book/user/metrics/event.html) |A user deleted a custom search engine  |[1](https://github.com/mozilla-mobile/fenix/pull/6918)||2020-03-01 |
+| user_specified_search_engines.search_with_custom_engine |[event](https://mozilla.github.io/glean/book/user/metrics/event.html) |A user performed a search with a custom search engine  |[1](https://github.com/mozilla-mobile/fenix/pull/6918)||2020-03-01 |
 
 ## metrics
 This is a built-in ping that is assembled out of the box by the Glean SDK.