diff --git a/app/src/main/java/org/mozilla/fenix/components/metrics/MetricController.kt b/app/src/main/java/org/mozilla/fenix/components/metrics/MetricController.kt
index 2ed2ef4509..9f16bfc583 100644
--- a/app/src/main/java/org/mozilla/fenix/components/metrics/MetricController.kt
+++ b/app/src/main/java/org/mozilla/fenix/components/metrics/MetricController.kt
@@ -276,7 +276,7 @@ internal class ReleaseMetricController(
                         Logger("Metrics").error("Unknown suggestion provider: $provider")
                         null
                     }
-                }?.accumulateSamples(longArrayOf(providerTiming.second as Long))
+                }?.accumulateSamples(listOf(providerTiming.second as Long))
             }
             Unit
         }
diff --git a/app/src/main/java/org/mozilla/fenix/home/recentsyncedtabs/RecentSyncedTabFeature.kt b/app/src/main/java/org/mozilla/fenix/home/recentsyncedtabs/RecentSyncedTabFeature.kt
index ef9b1cb69c..e7da83ce0e 100644
--- a/app/src/main/java/org/mozilla/fenix/home/recentsyncedtabs/RecentSyncedTabFeature.kt
+++ b/app/src/main/java/org/mozilla/fenix/home/recentsyncedtabs/RecentSyncedTabFeature.kt
@@ -111,7 +111,7 @@ class RecentSyncedTabFeature(
         syncStartId: GleanTimerId?
     ) {
         RecentSyncedTabs.recentSyncedTabShown[tab.deviceType.name.lowercase()].add()
-        RecentSyncedTabs.recentSyncedTabTimeToLoad.stopAndAccumulate(syncStartId)
+        syncStartId?.let { RecentSyncedTabs.recentSyncedTabTimeToLoad.stopAndAccumulate(it) }
         if (tab == lastSyncedTab) {
             RecentSyncedTabs.latestSyncedTabIsStale.add()
         }
diff --git a/app/src/main/java/org/mozilla/fenix/perf/ColdStartupDurationTelemetry.kt b/app/src/main/java/org/mozilla/fenix/perf/ColdStartupDurationTelemetry.kt
index 33bf211eda..2a079211aa 100644
--- a/app/src/main/java/org/mozilla/fenix/perf/ColdStartupDurationTelemetry.kt
+++ b/app/src/main/java/org/mozilla/fenix/perf/ColdStartupDurationTelemetry.kt
@@ -66,7 +66,7 @@ class ColdStartupDurationTelemetry {
 
         val startNanos = StartupTimeline.frameworkStartMeasurement.applicationInitNanos
         val durationMillis = TimeUnit.NANOSECONDS.toMillis(firstFrameNanos - startNanos)
-        metric.accumulateSamples(longArrayOf(durationMillis))
+        metric.accumulateSamples(listOf(durationMillis))
         logger.info("COLD $typeForLog Application.<init> to first frame: $durationMillis ms")
     }
 }
diff --git a/app/src/main/java/org/mozilla/fenix/tabstray/TabsTrayMiddleware.kt b/app/src/main/java/org/mozilla/fenix/tabstray/TabsTrayMiddleware.kt
index 8adcd29eb3..0395a4de27 100644
--- a/app/src/main/java/org/mozilla/fenix/tabstray/TabsTrayMiddleware.kt
+++ b/app/src/main/java/org/mozilla/fenix/tabstray/TabsTrayMiddleware.kt
@@ -56,7 +56,7 @@ class TabsTrayMiddleware : Middleware<TabsTrayState, TabsTrayAction> {
                         )
 
                         val tabGroupSizeMapping = tabsPerGroup.map { generateTabGroupSizeMappedValue(it) }
-                        SearchTerms.groupSizeDistribution.accumulateSamples(tabGroupSizeMapping.toLongArray())
+                        SearchTerms.groupSizeDistribution.accumulateSamples(tabGroupSizeMapping.toList())
                     }
                 }
             }
diff --git a/app/src/main/java/org/mozilla/fenix/telemetry/TelemetryMiddleware.kt b/app/src/main/java/org/mozilla/fenix/telemetry/TelemetryMiddleware.kt
index 82996550df..f2fe2aa0b8 100644
--- a/app/src/main/java/org/mozilla/fenix/telemetry/TelemetryMiddleware.kt
+++ b/app/src/main/java/org/mozilla/fenix/telemetry/TelemetryMiddleware.kt
@@ -106,9 +106,9 @@ class TelemetryMiddleware(
 
         // Record the age of the engine session of the killed foreground/background tab.
         if (isSelected && age != null) {
-            EngineMetrics.killForegroundAge.accumulateSamples(listOf(age).toLongArray())
+            EngineMetrics.killForegroundAge.accumulateSamples(listOf(age))
         } else if (age != null) {
-            EngineMetrics.killBackgroundAge.accumulateSamples(listOf(age).toLongArray())
+            EngineMetrics.killBackgroundAge.accumulateSamples(listOf(age))
         }
     }
 }